Electronic device comprising wireless charging circuit

Abstract

An electronic device according to various embodiments of the present disclosure may include a housing forming the exterior of the electronic device, a wireless charging circuit, and at least one processor electrically connected to the wireless charging circuit, wherein the housing may include a first part and a second part, and the position relative to the first part may change depending on the state of the electronic device, and the at least one processor may control the wireless charging circuit to receive a first power from a power supply device through a first magnetic field having a first center, and may control the wireless charging circuit to receive the first power from the power supply device through a second magnetic field having a second center distinguished from the first center based on the positional relationship between the first part and the second part of the housing. In addition, various embodiments identified through the specification are possible.

Description

Technology Field

[0001] The various embodiments disclosed in this document relate to an electronic device including a wireless charging circuit. Background Technology

[0002] Recently released electronic devices can provide wireless charging through wireless charging circuits. Electronic devices equipped with wireless charging circuits can receive power from a battery via a wireless charging pad without a wired connection, and wireless charging pads capable of high-speed charging are also emerging due to advancements in RF technology. As such wireless charging becomes possible, the convenience for users of electronic devices can be enhanced.

[0003] Wireless charging methods for electronic devices can be broadly classified into magnetic induction and magnetic resonance. Compared to magnetic induction, magnetic resonance offers a relatively longer charging distance and can charge multiple electronic devices simultaneously. The problem to be solved

[0004] In order for a power supply device to wirelessly charge an electronic device using a magnetic resonance method, the power supply device may transmit power to the wireless charging coil of the electronic device using a charging coil within the power supply device. In this case, depending on the mounting state of the electronic device, the center of the charging coil within the power supply device and the center of the wireless charging coil of the electronic device may be misaligned, and the transmission efficiency of the power transmitted to the electronic device may be degraded. For example, in the case of a foldable electronic device, the housing may include a first part, a second part, and a hinge structure connecting the second part to the first part so that the second part can rotate about a first axis. Depending on the positional relationship (e.g., folding angle) between the second part containing the wireless charging coil and the first part, the center of the charging coil of the power supply device and the wireless charging coil of the foldable electronic device may be misaligned, and the transmission efficiency of the power transmitted to the foldable electronic device may be degraded.

[0005] Various embodiments disclosed in this document can determine a wireless charging coil to receive power transmitted from a power supply device based on the positional relationship between the power supply device and the electronic device. means of solving the problem

[0006] An electronic device according to various embodiments of the present disclosure may include a housing forming the exterior of the electronic device, a wireless charging circuit, and at least one processor electrically connected to the wireless charging circuit, wherein the housing may include a first part and a second part, and the position relative to the first part may change depending on the state of the electronic device, and the at least one processor may control the wireless charging circuit to receive a first power from a power supply device through a first magnetic field having a first center, and may control the wireless charging circuit to receive the first power from the power supply device through a second magnetic field having a second center distinguished from the first center based on the positional relationship between the first part of the housing and the first part of the housing when the relative positions of the power supply device and the first part of the housing are fixed.

[0007] A method of operation of an electronic device comprising a housing including a first part and a second part connected to the first part according to various embodiments of the present disclosure may include the operation of controlling a wireless charging circuit of the electronic device to receive a first power from a power supply device based on a first magnetic field having a first center, and the operation of controlling the wireless charging circuit to receive the first power from the power supply device based on a second magnetic field having a second center distinguished from the first center, based on the positional relationship between the first part of the housing and the first part of the housing when the relative positions of the power supply device and the first part of the housing are fixed. Effects of the invention

[0008] According to various embodiments disclosed in this document, an electronic device can secure power transmission efficiency from a power supply device by receiving power through a wireless charging coil that can reduce centering and misalignment with a charging coil of a power supply device.

[0009] In addition, according to various embodiments, the electronic device can prevent the deterioration of the charging efficiency of the electronic device by displaying a guide on the display of the electronic device when the magnitude of the power received from the power supply is smaller than the magnitude of the critical power.

[0010] In addition, various effects that can be identified directly or indirectly through this document may be provided. Brief explanation of the drawing

[0011] FIG. 1 is a drawing illustrating an electronic device in a network environment according to one embodiment. FIG. 2a is a drawing showing the front and rear of an electronic device in an unfolded state according to one embodiment. FIG. 2b is a drawing showing a perspective view of an electronic device in a folded state according to one embodiment. FIG. 3a is a block diagram of an electronic device according to one embodiment. FIG. 3b is a drawing illustrating the arrangement structure of a plurality of wireless charging coils according to one embodiment. FIG. 4a is a diagram illustrating the operation of an electronic device receiving power from a power supply device based on the positional relationship of a housing according to one embodiment. FIG. 4b is a diagram illustrating the operation of an electronic device receiving power from a power supply device using a plurality of wireless charging coils based on the positional relationship between a first part and a second part of a housing according to one embodiment. FIG. 4c is a diagram illustrating the operation of an electronic device receiving power from a power supply device using a single wireless charging coil based on the positional relationship between a first part and a second part of a housing according to one embodiment. FIG. 5 is a diagram illustrating the operation of an electronic device according to one embodiment receiving power from a power supply and requesting the power supply to change the transmitted power. FIG. 6a is a drawing illustrating a power supply device and charging coils disposed in the power supply device according to one embodiment. FIG. 6b is a block diagram illustrating a power supply device according to one embodiment. FIG. 7 is a diagram illustrating the operation of a power supply device transmitting power to an electronic device according to one embodiment. FIG. 8 is a diagram illustrating a flowchart for power transmission and reception between a power supply device and an electronic device according to one embodiment. FIG. 9a is a drawing illustrating the arrangement of an electronic device and a power supply device in which a plurality of wireless charging coils are arranged in a first part according to one embodiment. FIG. 9b is a drawing illustrating the arrangement structure of wireless charging coils of an electronic device according to an embodiment shown in FIG. 9a. FIG. 9c illustrates a flowchart for selecting a wireless charging coil that receives a first power based on the positional relationship between a first part and a second part of an electronic device according to an embodiment shown in FIG. 9a. FIG. 10a is a drawing illustrating the arrangement of an electronic device and a power supply device in which a plurality of wireless charging coils are arranged in a first part according to one embodiment. FIG. 10b illustrates a flowchart for selecting a wireless charging coil that receives a first power based on the positional relationship between a first part and a second part of an electronic device according to one embodiment of FIG. 10a. FIG. 11a is a drawing illustrating the arrangement of an electronic device and a power supply device in which a plurality of wireless charging coils are arranged in a second part according to one embodiment. FIG. 11b illustrates a flowchart for performing impedance matching according to the positional relationship between a first part and a second part of a housing according to an embodiment shown in FIG. 11a. FIG. 11c is a diagram illustrating the change in the center of wireless charging coils through the connection of inductors. FIG. 12 is a flowchart illustrating additional inductor connections according to the folding angle between the first and second parts of the housing. FIG. 13 illustrates a flowchart for selecting a wireless charging coil and an impedance matching method corresponding to the positional relationship between a first part and a second part of a housing using a memory according to one embodiment. FIG. 14 is a flowchart illustrating the contents of a power supply device displaying a charging guide according to one embodiment. FIG. 15a is a flowchart illustrating the display of a charging guide of a power supply device in response to a request to change the charging guide of an electronic device according to one embodiment. FIG. 15b is a flowchart illustrating a charging guide display of a power supply device according to an embodiment, which identifies a change in the positional relationship of an electronic device. FIG. 16a is a diagram illustrating the operation of a power supply device changing a charging guide according to the folding angle of an electronic device according to one embodiment. FIG. 16b illustrates a flowchart for determining whether to change the guide based on information regarding the positional relationship of a plurality of electronic devices when a power supply device according to one embodiment is electrically connected to a plurality of electronic devices. FIG. 16c is a diagram illustrating the operation of a first electronic device and a second electronic device that transmit feedback to a power supply device based on the distance from the received power or power supply device according to one embodiment. FIG. 17 illustrates a drawing showing a single charging guide of a power supply device according to one embodiment. FIG. 18 is a drawing showing a power supply device according to one embodiment displaying a plurality of charging guides corresponding to a plurality of electronic devices. FIG. 19a is a drawing for explaining a position guide of an electronic device according to one embodiment. FIG. 19b illustrates a change in the position guide display of an electronic device according to the direction in which the electronic device is facing in one embodiment. FIG. 20a is a drawing illustrating charging guides having various width lengths of a power supply device according to one embodiment. FIG. 20b is a drawing for explaining a method of displaying a charging guide according to charging coils that transmit power according to one embodiment. FIG. 21 is a drawing showing a position guide for an electronic device using a power supply device according to one embodiment. FIG. 22 is a drawing showing a foldable electronic device according to another embodiment. In relation to the description of the drawings, the same or similar reference numerals may be used for identical or similar components. Specific details for implementing the invention

[0012] Hereinafter, various embodiments of the present invention are described with reference to the accompanying drawings. However, this is not intended to limit the present invention to specific embodiments and should be understood to include various modifications, equivalents, and / or alternatives of the embodiments of the present invention.

[0013] FIG. 1 is a block diagram of an electronic device (101) in a network environment (100) according to various embodiments. Referring to FIG. 1, in the network environment (100), the electronic device (101) may communicate with an electronic device (102) through a first network (198) (e.g., a short-range wireless communication network) or with an electronic device (104) or a server (108) through a second network (199) (e.g., a long-range wireless communication network). According to one embodiment, the electronic device (101) may communicate with an electronic device (104) through a server (108). According to one embodiment, the electronic device (101) may include a processor (120), memory (130), input module (150), sound output module (155), display module (160), audio module (170), sensor module (176), interface (177), connection terminal (178), haptic module (179), camera module (180), power management module (188), battery (189), communication module (190), subscriber identification module (196), or antenna module (197). In some embodiments, at least one of these components (e.g., connection terminal (178)) may be omitted from the electronic device (101), or one or more other components may be added. In some embodiments, some of these components (e.g., sensor module (176), camera module (180), or antenna module (197)) may be integrated into a single component (e.g., display module (160)).

[0014] The processor (120) can control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) by executing software (e.g., a program (140)), and can perform various data processing or operations. According to one embodiment, as at least part of the data processing or operations, the processor (120) can store commands or data received from other components (e.g., a sensor module (176) or a communication module (190)) in volatile memory (132), process the commands or data stored in volatile memory (132), and store the resulting data in non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor) or an auxiliary processor (123) that can operate independently or together with it (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor). For example, if the electronic device (101) includes a main processor (121) and an auxiliary processor (123), the auxiliary processor (123) may be configured to use lower power than the main processor (121) or to be specialized for a designated function. The auxiliary processor (123) may be implemented separately from the main processor (121) or as part thereof.

[0015] The auxiliary processor (123) may control at least some of the functions or states associated with at least one component of the electronic device (101) (e.g., display module (160), sensor module (176), or communication module (190)) on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. According to one embodiment, the auxiliary processor (123) (e.g., image signal processor or communication processor) may be implemented as part of another functionally related component (e.g., camera module (180) or communication module (190)). According to one embodiment, the auxiliary processor (123) (e.g., neural network processing unit) may include a hardware structure specialized for processing an artificial intelligence model. The artificial intelligence model may be generated through machine learning. Such learning may be performed, for example, on the electronic device (101) itself where the artificial intelligence is performed, or through a separate server (e.g., server (108)). The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model may include a plurality of artificial neural network layers.An artificial neural network may be a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to the hardware structure, the artificial intelligence model may include a software structure, either additionally or substantially.

[0016] The memory (130) can store various data used by at least one component of the electronic device (101) (e.g., processor (120) or sensor module (176)). The data may include, for example, input data or output data for software (e.g., program (140)) and related commands. The memory (130) may include volatile memory (132) or non-volatile memory (134).

[0017] The program (140) may be stored as software in memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0018] The input module (150) can receive commands or data to be used for a component of the electronic device (101) (e.g., processor (120)) from outside the electronic device (101) (e.g., user). The input module (150) may include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0019] The sound output module (155) can output a sound signal to the outside of the electronic device (101). The sound output module (155) may include, for example, a speaker or a receiver. The speaker may be used for general purposes, such as multimedia playback or recording playback. The receiver may be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from the speaker or as part thereof.

[0020] The display module (160) can visually provide information to an external (e.g., user) of the electronic device (101). The display module (160) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling said device. According to one embodiment, the display module (160) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of the force generated by said touch.

[0021] The audio module (170) can convert sound into an electrical signal or, conversely, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150) or output sound through the sound output module (155) or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphones) connected directly or wirelessly to the electronic device (101).

[0022] The sensor module (176) can detect the operating state of the electronic device (101) (e.g., power or temperature) or the external environmental state (e.g., user state) and generate an electrical signal or data value corresponding to the detected state. According to one embodiment, the sensor module (176) may include, for example, a gesture sensor, a gyroscope sensor, a barometric pressure sensor, a magnetic sensor, an accelerometer sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biosensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0023] The interface (177) may support one or more specified protocols that can be used for the electronic device (101) to be connected directly or wirelessly to an external electronic device (e.g., electronic device (102)). According to one embodiment, the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0024] The connection terminal (178) may include a connector through which the electronic device (101) can be physically connected to an external electronic device (e.g., electronic device (102)). According to one embodiment, the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0025] The haptic module (179) can convert an electrical signal into a mechanical stimulus (e.g., vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic senses. According to one embodiment, the haptic module (179) may include, for example, a motor, a piezoelectric element, or an electric stimulation device.

[0026] The camera module (180) can capture still images and video. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0027] The power management module (188) can manage power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented, for example, as at least part of a power management integrated circuit (PMIC).

[0028] The battery (189) can supply power to at least one component of the electronic device (101). According to one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0029] The communication module (190) can support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between an electronic device (101) and an external electronic device (e.g., electronic device (102), electronic device (104), or server (108)), and the performance of communication through the established communication channel. The communication module (190) may include one or more communication processors that operate independently of the processor (120) (e.g., application processor) and support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (190) may include a wireless communication module (192) (e.g., cellular communication module, short-range wireless communication module, or GNSS (global navigation satellite system) communication module) or a wired communication module (194) (e.g., LAN (local area network) communication module, or power line communication module). The corresponding communication module among these communication modules can communicate with an external electronic device (104) through a first network (198) (e.g., a short-range communication network such as Bluetooth, WiFi Direct (wireless fidelity direct), or IrDA (infrared data association)) or a second network (199) (e.g., a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN). These various types of communication modules may be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (192) can identify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) using subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module (196).

[0030] The wireless communication module (192) can support 5G networks and next-generation communication technologies following 4G networks, for example, new radio access technology. NR access technology can support high-speed transmission of high-capacity data (enhanced mobile broadband (eMBB)), minimization of terminal power and connection of multiple terminals (massive machine type communications (mMTC)), or high reliability and low latency (ultra-reliable and low-latency communications (URLLC)). The wireless communication module (192) can support a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate, for example. The wireless communication module (192) can support various technologies for securing performance in the high-frequency band, such as beamforming, massive MIMO (multiple-input and multiple-output), full-dimensional MIMO (FD-MIMO), array antenna, analog beamforming, or large-scale antenna. The wireless communication module (192) can support various requirements specified in the electronic device (101), external electronic device (e.g., electronic device (104)), or network system (e.g., second network (199)). According to one embodiment, the wireless communication module (192) can support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, loss coverage (e.g., 164 dB or less) for mMTC realization, or U-plane latency (e.g., downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less) for URLLC realization.

[0031] An antenna module (197) can transmit a signal or power to an external source (e.g., an external electronic device) or receive it from an external source. According to one embodiment, the antenna module (197) may include an antenna comprising a radiator made of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). According to one embodiment, the antenna module (197) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as a first network (198) or a second network (199), may be selected from the plurality of antennas, for example, by a communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device through the selected at least one antenna. According to some embodiments, in addition to the radiator, other components (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as part of the antenna module (197). According to various embodiments, the antenna module (197) may form a mmWave antenna module. According to one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent to a first surface (e.g., bottom surface) of the printed circuit board and capable of supporting a specified high frequency band (e.g., mmWave band), and a plurality of antennas (e.g., array antennas) disposed on or adjacent to a second surface (e.g., top surface or side surface) of the printed circuit board and capable of transmitting or receiving a signal of the specified high frequency band.

[0032] At least some of the above components can be connected to each other via a communication method between peripheral devices (e.g., bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)) and exchange signals (e.g., commands or data) with each other.

[0033] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) through a server (108) connected to a second network (199). Each of the external electronic devices (102, or 104) may be the same or a different type of device as the electronic device (101). According to one embodiment, all or part of the operations performed on the electronic device (101) may be performed on one or more of the external electronic devices (102, 104, or 108). For example, if the electronic device (101) needs to perform a function or service automatically or in response to a request from a user or another device, the electronic device (101) may request one or more external electronic devices to perform at least part of the function or service instead of performing the function or service itself or additionally. One or more external electronic devices that receive the above request may execute at least part of the requested function or service, or additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may provide the result as is or additionally processed as at least part of the response to the request. For this purpose, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device (101) may provide ultra-low latency services using, for example, distributed computing or mobile edge computing. In another embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server using machine learning and / or neural networks. According to one embodiment, the external electronic device (104) or the server (108) may be included within a second network (199).The electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0034] The electronic device according to the various embodiments disclosed in this document may be a device of various forms. The electronic device may include, for example, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a consumer electronics device. The electronic device according to the embodiments of this document is not limited to the devices described above.

[0035] The various embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of said embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of said items unless the relevant context clearly indicates otherwise. In this document, each of phrases such as "A or B," "at least one of A and B," "at least one of A or B," "A, B or C," "at least one of A, B and C," and "at least one of A, B, or C" may include any one of the items listed together in the corresponding phrase, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used simply to distinguish a component from another component and do not limit the components in any other aspect (e.g., importance or order). Where any component (e.g., the first) is referred to as "coupled" or "connected" to another component (e.g., the second), with or without the terms "functionally" or "communicationally," it means that said component may be connected to said other component directly (e.g., via a wire), wirelessly, or through a third component.

[0036] The term “module” as used in the various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit, for example. A module may be a component formed integrally, or a minimum unit of said component or a part thereof that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0037] Various embodiments of the present document may be implemented as software (e.g., program (140)) comprising one or more instructions stored in a storage medium (e.g., internal memory (136) or external memory (138)) readable by a machine (e.g., electronic device (101)). For example, a processor (e.g., processor (120)) of the machine (e.g., electronic device (101)) may call at least one of the one or more instructions stored in the storage medium and execute it. This enables the machine to be operated to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code that can be executed by an interpreter. The storage medium readable by the machine may be provided in the form of a non-transitory storage medium. Here, 'non-temporary' simply means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently and cases where it is stored temporarily.

[0038] According to one embodiment, the method according to the various embodiments disclosed herein may be provided by being included in a computer program product. The computer program product may be traded between a seller and a buyer as a product. The computer program product may be distributed in the form of a device-readable storage medium (e.g., CD-ROM (compact disc read-only memory)), or distributed online (e.g., download or upload) through an application store (e.g., Play Store™) or directly between two user devices (e.g., smartphones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily created on a device-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

[0039] According to various embodiments, each component (e.g., module or program) of the components described above may include a singular or multiple entities, and some of the multiple entities may be separated and placed in other components. According to various embodiments, one or more of the components or operations among the aforementioned components may be omitted, or one or more other components or operations may be added. Additionally or substantially, multiple components (e.g., module or program) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the multiple components in the same or similar manner as those performed by the corresponding component among the multiple components prior to integration. According to various embodiments, operations performed by the module, program, or other components may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

[0040] FIG. 2a is a drawing showing the front and rear of an electronic device in an unfolded state according to one embodiment.

[0041] Referring to FIG. 2a, an electronic device (101) according to one embodiment may include a housing (210), a flexible display (220) disposed in the housing (210), and / or a rear cover (260). In this document, the surface on which the flexible display (220) is disposed is defined as the front surface of the electronic device (101). The surface opposite to the front surface is defined as the rear surface of the electronic device (101). Additionally, the surface surrounding the space between the front surface and the rear surface is defined as the side surface of the electronic device (101).

[0042] In one embodiment, the housing (210) may include a first part (211) and a second part (212). The first part (211) and the second part (212) may form a portion of the rear surface and at least a portion of the side surface of the electronic device (101). In one embodiment, the first part (211) and / or the second part (212) may include a conductive material (e.g., metal).

[0043] According to one embodiment, a rear cover (260) may be coupled to a housing (210) to form the rear surface of an electronic device (101). For example, a first rear cover (261) may be coupled to a first part (211), and a second rear cover (262) may be coupled to a second part (212). In one example, the first part (211) and the first rear cover (261), and the second part (212) and the second rear cover (262) may form at least a portion of the rear surface of the electronic device (101). In one embodiment, the housing (210) of the electronic device (101) is described as having a configuration distinct from the rear cover (260), but in another embodiment, the housing (210) may be formed integrally with the rear cover (260).

[0044] In one embodiment, the rear cover (260) may comprise an insulating material (e.g., plastic resin). In another embodiment, the rear cover (260) may comprise a conductive material (e.g., aluminum).

[0045] According to one embodiment, the first part (211) and the second part (212) are arranged on both sides of a folding axis (e.g., a first axis) parallel to the x-axis and may have a shape that is symmetrical overall with respect to the folding axis (e.g., a first axis). However, the shape is not limited to a symmetrical shape, and the first part (211) and the second part (212) may have an asymmetrical shape with respect to the folding axis (e.g., a first axis).

[0046] According to one embodiment, the electronic device (101) may have an unfolded state, a folded state, and / or an intermediate state. In one embodiment, the state of the electronic device (101) may vary depending on the angle or distance between the first part (211) and the second part (212). For example, the state in which the first part (211) and the second part (212) are positioned at an angle of 180 degrees may be an unfolded state.

[0047] As another example, the first part (211) and the second part (212) may be in a folded state when positioned facing each other. As another example, the first part (211) and the second part (212) may be in an intermediate state when positioned at a certain angle to each other. However, the specific angle formed by the first part (211) and the second part (212) in the folded and unfolded states is for convenience of explanation and is not limited thereto.

[0048] In one embodiment, at least a portion of the first part (211) and the second part (212) may be formed of a metal material (e.g., aluminum) or a non-metal material having a selected size of rigidity to support the flexible display (220).

[0049] In one embodiment, the housing (210), rear cover (260), and flexible display (220) may form an internal space in which various components of the electronic device (101) (e.g., a printed circuit board, or the battery (189) of FIG. 1) may be placed.

[0050] According to one embodiment, the flexible display (220) may be placed in the housing (210). For example, the flexible display (220) may be seated on a recess formed by the housing (210) and may form most of the front surface of the electronic device (101). In one embodiment, the flexible display (220) may include a first region (221) and a second region (222). The first region (221) and the second region (222) of the flexible display (220) may be separated around a first axis that serves as a reference for folding or unfolding the electronic device (101). The division of the regions of the flexible display (220) shown in FIG. 2a is exemplary, and in other embodiments, the flexible display (220) may be divided into two or more regions according to structure or function. For example, the flexible display (220) may be divided into a folding area having a predetermined curvature when the electronic device (101) is folded around a folding axis (e.g., a first axis), a first area adjacent to a first part (211) based on the folding area, and a second area adjacent to a second part (212). The first area (221) and the second area (222) may have a shape that is symmetrical overall around the folding axis (e.g., a first axis).

[0051] According to one embodiment, the arrangement structure of the first region (221) and the second region (222) of the flexible display (220) may vary depending on the state of the electronic device (101). For example, when the electronic device (101) is in an unfolded state, the first region (221) and the second region (222) of the flexible display (220) may be at an angle of 180 degrees to each other and may face in the same direction (e.g., -y direction).

[0052] As another example, when the electronic device (101) is in a folded state, the first region (221) and the second region (222) of the flexible display (220) may face each other and form a narrow angle (e.g., between 0 and 10 degrees). As another example, when the electronic device (101) is in an intermediate state, the first region (221) and the second region (222) of the flexible display (220) may form an angle that is larger than in the folded state and smaller than in the unfolded state. In this case, the flexible display (220) may be made of a curved surface having at least a portion of a predetermined curvature, and the curvature may be smaller than in the folded state.

[0053] However, the specific angle formed by the first region (221) and the second region (222) when the above-described folded and unfolded states is for convenience of explanation and is not limited thereto.

[0054] According to one embodiment, the electronic device (101) may include a camera hole (250) and / or a sub-display (251). In one embodiment, the camera hole (250) may correspond to a hole in which at least one lens of the camera module (180) is exposed. Light from outside the electronic device (101) may be incident on the camera module (180) placed inside the electronic device (101) through the camera hole (250). In one embodiment, the sub-display (251) may display a specified object (e.g., current time, remaining battery level of the electronic device (101)) when the electronic device (101) is in a folded state.

[0055] FIG. 2b is a drawing showing a perspective view of an electronic device in a folded state according to one embodiment.

[0056] Referring to FIG. 2b, an electronic device (101) according to one embodiment may include a hinge cover (230). The hinge cover (230) may be positioned between a first part (211) and a second part (212) and configured to cover an internal part (e.g., a hinge structure).

[0057] In one embodiment, at least a portion of the hinge cover (230) may be covered by a portion of the first portion (211) and the second portion (212) or exposed to the outside depending on the state of the electronic device (101). For example, when the electronic device (101) is in an unfolded state, the hinge cover (230) may be covered by the first portion (211) and the second portion (212) and not exposed. As another example, when the electronic device (101) is in a folded state, the hinge cover (230) may be exposed to the outside by a first width (w1) between the first portion (211) and the second portion (212). As another example, when the first part (211) and the second part (212) are in an intermediate state where they are folded with a certain angle, the hinge cover (230) may be partially exposed to the outside between the first part (211) and the second part (212). However, the width of the portion of the hinge cover (230) exposed to the outside in the intermediate state may be smaller than the width of the portion exposed to the outside when folded (e.g., the first width (w1)). In one embodiment, the hinge cover (230) may include a curved surface. In one embodiment, the hinge cover (230) may include a conductive material (e.g., aluminum).

[0058] FIGS. 2a and 2b illustrate an electronic device (101) of an embodiment to which the technical concept of the present disclosure is applied. The electronic device to which the technical concept of the present disclosure is applied is not limited to the electronic device (101) shown in FIGS. 2a and 2b and can be applied to various form factors (e.g., bar type, slideable type).

[0059] FIG. 3a is a block diagram of an electronic device according to one embodiment.

[0060] Referring to FIG. 3a, an electronic device (101) according to one embodiment may include a wireless communication circuit (310), a processor (120), a wireless charging coil (330) and / or a wireless charging circuit (340).

[0061] According to one embodiment, a wireless communication circuit (310) electrically connected to a processor (120) can establish wireless communication with an external device (e.g., a power supply). For example, the wireless communication circuit (310) can receive a ping signal for detecting an electronic device (101) from an external device (e.g., a power supply). Under the control of the processor (120), the wireless communication circuit (310) can transmit feedback to the external device in response to the received ping signal.

[0062] According to one embodiment, the wireless charging coil (330) may include at least one wireless charging coil. For example, the wireless charging coil (330) may include a first wireless charging coil and a second wireless charging coil, which will be described later. As another example, the wireless charging coil (330) may include a single wireless charging coil.

[0063] According to one embodiment, the processor (120) may be electrically connected to a wireless charging coil (330) and a wireless charging circuit (340), and the processor (120) may wirelessly charge the battery of the electronic device (101) (e.g., the battery (189) of FIG. 1) by controlling the wireless charging coil (330) through the wireless charging circuit (340). For example, an external device (e.g., a power supply) may transmit power to the electronic device (101) to charge the electronic device (101) in a magnetic resonance manner. In one example, the processor (120) may receive power from the external device (e.g., a power supply) by controlling the wireless charging circuit (340), and may charge the battery (189) of the electronic device (101) using said power.

[0064] In FIG. 3a, the plurality of charging coils (330) and the wireless charging circuit (340) are described as separate concepts, but this is for convenience of explanation, and in other embodiments, the wireless charging circuit (340) may be described as a circuit including a wireless charging coil (330) for receiving power from an external device (e.g., a power supply device).

[0065] According to another embodiment, the electronic device (101) may use a plurality of charging coils (330) for near field communication (NFC). For example, the processor (120) may use a wireless communication circuit (310) to control the wireless charging coil (330) to be utilized as an NFC antenna radiator for near field wireless communication.

[0066] FIG. 3b is a drawing illustrating the arrangement structure of a plurality of wireless charging coils according to one embodiment.

[0067] Referring to FIG. 3b, a wireless charging coil (330) according to one embodiment may include a first wireless charging coil (331) and a second wireless charging coil (332). The wireless charging coil (330) may be placed together in a first part (211) or a second part (212) of a housing (210). For example, the first wireless charging coil (331) and the second wireless charging coil (332) may be placed in the first part (211) of the housing (210). In one example, when looking at the first part (211) of the housing (210), the first wireless charging coil (331) placed in the first part (211) may be located in a first direction (e.g., -y direction) with respect to the second wireless charging coil (332). Consequently, the first center of the first wireless charging coil (331) may differ from the second center of the second wireless charging coil (332). In one embodiment, the first center of the first wireless charging coil (331) may substantially coincide with the center of the magnetic flux generated by the first wireless charging coil (331). Likewise, the second center of the second wireless charging coil (332) may coincide with the center of the magnetic flux generated by the first wireless charging coil (332).

[0068] The wireless charging coil (330) illustrated in FIG. 3b is shown as being placed in the first part (211) of the housing (210), but this is an example and is not limited thereto, and the wireless charging coil (330) may have various placement structures within the housing (210). For example, the wireless charging coil (330) may be placed in the second part (212) of the housing (210). As another example, some of the wireless charging coils (330) may be placed in the first part (211) of the housing (210), and the remainder may be placed in the second part (212).

[0069] Although FIG. 3b depicts the first wireless charging coil (331) and the second wireless charging coil (332) as being placed on the first rear cover (261), this is due to the limitations of the description of the drawings, and in reality, the first wireless charging coil (331) and the second wireless charging coil (332) are placed in the internal space of the electronic device (101) formed by the flexible display (220) and the housing (220). For example, the first wireless charging coil (331) and the second wireless charging coil (332) may be placed within the first housing (211) adjacent to the first rear cover (261). As another example, the first wireless charging coil (331) and the second wireless charging coil (332) may be placed within the second housing (212) adjacent to the second rear cover (262).

[0070] FIG. 4a is a diagram illustrating the operation of an electronic device receiving power from a power supply device based on the positional relationship of a housing according to one embodiment.

[0071] Referring to FIG. 4a, an electronic device (101) according to one embodiment can control a wireless charging circuit (340) to receive first power from a power supply device through a first magnetic field having a first center in operation 401. In one embodiment, the first magnetic field having a first center can be formed by a first wireless charging coil (331) among wireless charging coils (330).

[0072] According to one embodiment, the electronic device (101) can control the wireless charging circuit (340) to receive first power from the power supply device through a second magnetic field having a second center distinct from the first center, based on the positional relationship between the first part (211) and the second part (212) of the housing (210) when the relative position of the power supply device and the first part (211) of the housing (210) is fixed in operation 403. In one embodiment, the second magnetic field having the second center can be formed in various ways. For example, as described later in FIG. 4b, it can be formed by the second wireless charging coil (332) among the wireless charging coils (330). As another example, as described later in FIG. 4c, it can be formed by electrically connecting a lumped element (e.g., an inductor) to the first wireless charging coil (331).

[0073] Consequently, the electronic device (101) can form a second magnetic field having a second center by connecting an inductor to the first wireless charging coil (331) while receiving first power through the first wireless charging coil (331) which forms a first magnetic field having a first center, or by changing the wireless charging coil receiving the first power from the first wireless charging coil (331) to the second wireless charging coil (332). In one embodiment, the second center may be aligned relatively with the third center of the coil transmitting power from the power supply device than with the first center. Thus, the electronic device (101) can receive relatively more power from the power supply device.

[0074] The center of the magnetic field disclosed in this document may refer to the center of the magnetic flux. For example, when described with reference to the first wireless charging coil (331) shown in FIG. 3b, the center of the magnetic field formed by the first wireless charging coil (331) may refer to the first center of the first wireless charging coil (331). For instance, when current flows through the first wireless charging coil (331), a magnetic flux may be formed in a direction perpendicular to the first wireless charging coil (331). In this case, the center of the magnetic flux may substantially coincide with the first center of the first wireless charging coil (331). As another example, when described with reference to the second wireless charging coil (332) shown in FIG. 3b, the center of the magnetic field formed by the second wireless charging coil (332) may refer to the second center of the second wireless charging coil (332).

[0075] FIG. 4b is a diagram illustrating the operation of an electronic device receiving power from a power supply device using a plurality of wireless charging coils based on the positional relationship between a first part and a second part of a housing according to one embodiment.

[0076] Referring to FIG. 4b, an electronic device (101) according to one embodiment may receive a ping signal from a power supply outside the electronic device (101) through a wireless communication circuit (310) in operation 411. In one embodiment, the ping signal transmitted by the power supply may correspond to a signal for detecting the electronic device (101).

[0077] According to one embodiment, the electronic device (101) may transmit a first feedback for a ping signal to the power supply device through the wireless communication circuit (310) in operation 413. For example, the processor (120) of the electronic device (101) may transmit the first feedback to the power supply device in response to receiving the ping signal. As the power supply device receives the first feedback, the power supply device may identify the electronic device (101), and wireless communication between the power supply device and the electronic device (101) may be established.

[0078] According to one embodiment, the electronic device (101) can control the wireless charging circuit (340) to receive the first power received from the power supply device in operation 415 through the first wireless charging coil (331).

[0079] According to one embodiment, the electronic device (101) can control the wireless charging circuit (340) to receive the first power through the second wireless charging coil (332) based on the positional relationship between the first part (211) and the second part (212) of the housing (210) in operation 417. The positional relationship between the first part (211) and the second part (212) may refer to the positional relationship when the relative positions of the first part (211) of the housing (210) and the power supply device are fixed. In one embodiment, the positional relationship between the first part (211) and the second part (212) may include the angle formed by the first part (211) and the second part (212). For example, the electronic device (101) can control the wireless charging circuit (340) to receive through the second wireless charging coil (332) among the wireless charging coils (330) when the angle formed by the first part (211) and the second part (212) is 45 degrees or less.

[0080] In FIG. 4b, it is described that while the electronic device (101) is receiving the first power through the first wireless charging coil (331), it controls the receiving of the first power through the second wireless charging coil (332) based on the positional relationship between the first part (211) and the second part (212) of the housing (210) (e.g., the folding angle of the first part (211) and the second part (212). However, this is for convenience of explanation, and the electronic device (101) may control the receiving of the first power through the first wireless charging coil (331) based on the positional relationship between the first part (211) and the second part (212) while receiving the first power through the second wireless charging coil (332). The criteria for determining the wireless charging coil receiving the first power among the wireless charging coils (330) based on the above positional relationship will be described in detail later in FIG. 9c.

[0081] FIG. 4c is a diagram illustrating the operation of an electronic device receiving power from a power supply device using a single wireless charging coil based on the positional relationship between a first part and a second part of a housing according to one embodiment.

[0082] Referring to FIG. 4c, an electronic device (101) according to one embodiment may receive a ping signal from a power supply device through a wireless communication circuit (310) in operation 421. In one embodiment, the ping signal transmitted by the power supply device may correspond to a signal for detecting the electronic device (101).

[0083] According to one embodiment, the electronic device (101) may transmit a first feedback for a ping signal to a power supply device via a wireless communication circuit (310) in operation 423. In one embodiment, the first feedback may include information associated with the electronic device (101). For example, it may include information regarding the positional relationship of the housing (210), the number or size of the wireless charging coil (330) and / or the type of the electronic device (101).

[0084] According to one embodiment, the electronic device (101) can receive a first power from a power supply device through a first wireless charging coil (331) in operation 425. In one embodiment, the first power may refer to the transmitted power transmitted by the power supply device, and the first received power received by the electronic device (101) may be different from the first power when considering the power transmission efficiency.

[0085] According to one embodiment, the electronic device (101) may electrically connect a lumped element (e.g., an inductor) to the first wireless charging coil (331) in operation 427. For example, the electronic device (101) may include an inductor and a switch circuit electrically connected to the inductor. The processor (120) may control the switch circuit to electrically connect the inductor to the first wireless charging coil (331). Consequently, the position of the first center of the first wireless charging coil (331) may be changed through the connection of the inductor. For example, the changed position of the first center may be aligned with the coil of the power supply relative to the position before the change.

[0086] According to one embodiment, the electronic device (101) can receive first power from a power supply device through a first wireless charging coil (331) to which a lumped element is connected in operation 429. In one embodiment, when a lumped element is connected to the first wireless charging coil (331), the power transmission efficiency is increased, so the second received power received by the electronic device (101) in operation 429 may be higher than the first received power. Consequently, even if the power supply device transmits substantially the same first power, the electronic device (101) can receive relatively more power as a lumped element is connected to the first wireless charging coil (331).

[0087] In one embodiment, the description was given based on the first wireless charging coil (331), but the description of FIG. 4c can also be applied to the second wireless charging coil (332).

[0088] FIG. 5 is a diagram illustrating the operation of an electronic device according to one embodiment receiving power from a power supply and requesting the power supply to change the transmitted power.

[0089] Referring to FIG. 5, an electronic device (101) according to one embodiment can receive a first power in operation 501 through one of the wireless charging coils (330) (e.g., a first wireless charging coil (331)). Operation 501 can correspond to operation 415 of FIG. 4b.

[0090] According to one embodiment, the electronic device (101) can identify first information associated with the electronic device (101) and / or second information associated with first power in operation 503. In one embodiment, the first information associated with the electronic device (101) may include at least one of information about the size of the wireless charging coil (330), information about the threshold power required to charge the battery (189) of the electronic device (101), information about the type of the electronic device (101) (e.g., bar type, foldable type, smart watch), a first positional relationship between the housing (210) and the power supply device, and a second positional relationship between the first part (211) and the second part (212) of the housing (210). In one embodiment, the first positional relationship between the housing (210) and the power supply device may include the distance and angle between the housing (210) and the power supply device. For example, the first positional relationship may include the distance and angle between the first part (211) of the housing (210) and the power supply. For another example, the first positional relationship may include the distance and angle between the second part (212) of the housing (210) and the power supply. In one embodiment, since the wireless charging coil (330) is placed in the first part (211) and / or the second part (212) of the housing (210), identifying the first positional relationship between the housing (210) and the power supply may mean identifying the positional relationship between the wireless charging coil (330) and the coils of the power supply. Consequently, the electronic device (101) can identify the positional relationship between the wireless charging coil (330) and the coils of the power supply by identifying the first positional relationship. In one embodiment, the second positional relationship with respect to the first part (211) and the second part (212) of the housing (210) may include the angle formed by the first part (211) and the second part (212).In one embodiment, identifying the second positional relationship may mean identifying the influence of conductive parts within the housing (210) when receiving power from a power supply device. For example, when a plurality of charging coils (330) are placed in the first part (211), a conductive part placed in the second part (212) (e.g., a substrate of a flexible display (220) or a conductive part of the second part (212)) may affect the plurality of charging coils (330) receiving power from the power supply device. In this case, the influence may vary depending on the angle formed by the first part (211) and the second part (212) of the housing (210). Consequently, the electronic device (101) can identify the influence of conductive parts within the housing (210) when receiving power from the power supply device by identifying the second positional relationship. According to one embodiment, second information associated with a first power received from a power supply device may include information about a coil among the coils of the power supply device that is transmitting power to an electronic device (101) and / or information about a first transmitted power transmitted to the electronic device (101). In one embodiment, the information about the transmitting coil may include information about a charging coil among the plurality of charging coils that transmits power to the electronic device (101), where the power supply device includes a plurality of charging coils. In one embodiment, the first transmitted power may be distinguished from the first power received by the electronic device (101). For example, depending on the transmission efficiency of the first transmitted power transmitted to the electronic device (101), the first power received by the electronic device (101) may have a lower value than the first transmitted power.

[0091] According to one embodiment, the electronic device (101) can control to receive first power through one of the wireless charging coils (330) (e.g., second wireless charging coil (332)) based on the first information and / or second information in operation 505. For example, if the angle formed by the first part (211) and the second part (212) of the housing (210) is about 180 degrees, the electronic device (101) can control to receive first power through one of the wireless charging coils (330) based on first information including the positional relationship of the first part (211) and the second part (212).

[0092] According to one embodiment, the electronic device (101) may determine whether to request the power supply to change the first transmission power based on the first information and / or the second information in operation 507. For example, the electronic device (101) may identify the first information containing information about the threshold power and the second information containing information about the first power received by the electronic device (101), identify whether the received first power is greater than the threshold power, and accordingly determine whether to request the power supply to change the first transmission power. In one example, based on the determination, the electronic device (101) may request the power supply to change the first transmission power. In one embodiment, if the electronic device (101) determines that the first power is greater than the threshold power, the electronic device (101) may not request the power supply to change the first transmission power. In one embodiment, when the electronic device (101) requests to change the first transmission power, the power supply device may transmit a second feedback to the electronic device (101) regarding the request.

[0093] According to one embodiment, the electronic device (101) may receive second feedback regarding a request for a first transmission power change in operation 509. For example, the electronic device (101) may receive feedback from a power supply device using a wireless communication circuit (310).

[0094] According to one embodiment, the electronic device (101) may determine whether to change the guide of the electronic device (101) based on the second feedback in operation 511. For example, if the second feedback received from the power supply unit includes information that the first transmission power cannot be changed, the electronic device (101) may display a guide on the flexible display (220). The guide may include a user interface requesting the electronic device (101) to change its position so that the first power received by the electronic device (101) becomes greater than the threshold power. In one embodiment, the user interface may include text and / or an indicator indicating the direction of the positional movement in which the electronic device should be moved. As another example, if the second feedback received from the power supply unit includes information that the first transmission power can be changed, the electronic device (10) may not display a separate guide on the flexible display (220).

[0095] FIG. 6a is a drawing illustrating a power supply device and charging coils disposed in the power supply device according to one embodiment.

[0096] Referring to FIG. 6a, a power supply device (601) according to one embodiment may include charging coils (630), and among the charging coils (630), a first charging coil (631) may have a circular shape and be positioned within the power supply device (601) so as to face a first direction (e.g., +x direction). Additionally, among the charging coils (630), a second charging coil (632) may have a circular shape and be positioned within the power supply device (601) so as to face a second direction (e.g., +z direction). In one embodiment, the first charging coil (631) may have a first charging center (F1), and the second charging coil (632) may have a second charging center (F2).

[0097] However, the shape and arrangement structure of the power supply device (601) is not limited to the shape and arrangement structure shown in FIG. 6a and may have various shapes and arrangement structures.

[0098] FIG. 6b is a block diagram illustrating a power supply device according to one embodiment.

[0099] Referring to FIG. 6b, a power supply device (601) according to one embodiment may include a communication circuit (610), a processor (620), charging coils (630), a charging circuit (640) and / or a display circuit (650).

[0100] According to one embodiment, the processor (620) may be electrically connected to the communication circuit (610), and the processor (620) may control the communication circuit (610) to establish wireless communication with the electronic device (101). As described above in FIG. 3a, the processor (620) may control the communication circuit (610) to transmit a ping signal to detect the electronic device (101) and receive a response to the ping signal from the electronic device (101).

[0101] According to one embodiment, the processor (620) can control the charging circuit (640) to transmit a first transmission power to at least one of the charging coils (630) to charge the electronic device (101) in a magnetic resonance manner. In one embodiment, the processor (620) can control the communication circuit (610) to transmit information about the first transmission power and / or information about the charging coils (630) to the electronic device (101).

[0102] According to one embodiment, the processor (620) can control the display circuit (650) to display a guide for charging around the power supply (601). In one embodiment, the display circuit (650) may include a light-emitting circuit including an LED (light emitting diode) circuit. The guide may be displayed in various forms. For example, the guide may be displayed around the power supply (601) in a circular, elliptical, or square shape. As another example, the guide may repeatedly turn on and off for a specified period of time.

[0103] FIG. 7 is a diagram illustrating the operation of a power supply device transmitting power to an electronic device according to one embodiment.

[0104] Referring to FIG. 7, a power supply device (601) according to one embodiment can transmit a first transmission power to an electronic device (101) through a first charging coil (631) in operation 701.

[0105] According to one embodiment, the power supply device (601) can identify first information associated with the electronic device and / or second information associated with the first power received by the electronic device (101) in operation 703. In one embodiment, the first information associated with the electronic device (101) may include at least one of the following: information about the size of the wireless charging coil (330) of the electronic device (101); information about the threshold power required to charge the battery (189) of the electronic device (101); information about the type of the electronic device (101) (e.g., bar type, foldable type, smart watch); a first positional relationship between the housing (210) and the power supply device; and a second positional relationship between the first part (211) and the second part (212) of the housing (210). In one embodiment, the first information may be received from the electronic device (101). For example, the power supply device (601) may receive first information associated with the electronic device (101) from the electronic device (101) through a communication circuit (610). In one embodiment, the second information associated with the first power received from the power supply device may include information about a coil among the coils of the power supply device that is transmitting power to the electronic device (101) and / or information about the first transmitted power transmitted to the electronic device (101).

[0106] According to one embodiment, the power supply device (601) may control the second charging coil (632) to transmit the first transmission power based on the first information and / or the second information in operation 705. For example, the power supply device (601) may control the first transmission power to be transmitted through the second charging coil (632) when the first power received by the electronic device (101) is lower than the threshold power required to charge the electronic device (101) based on the first information and / or the second information. In one example, when the electronic device (101) is positioned in a second direction (e.g., +z direction) relative to the power supply device (601) of FIG. 6a, the electronic device (101) can receive power with a relatively higher transmission efficiency when transmitting the first transmission power through the second charging coil (632) than when transmitting through the first charging coil (631).

[0107] According to one embodiment, the power supply device (601) can determine whether it has received a request for a first transmission power change from the electronic device (101) in operation 707. For example, even if the power supply device (601) changes from the first charging coil (631) to the second charging coil (632) and transmits the first transmission power to the electronic device (101), if the first power received by the electronic device (101) is still lower than the threshold power, the electronic device (101) can make a request for a first transmission power change to the power supply device (601). In one example, the power supply device (601) can determine whether it has received the request for a first transmission power change through the communication circuit (610).

[0108] According to one embodiment, when the power supply device (601) receives a request to change the first transmission power, it may perform operation 709. In operation 709, the electronic device (101) may transmit feedback regarding the request to change the transmission power and determine whether to change the charging guide. For example, if the first transmission power can be changed, the power supply device (601) may transmit feedback to the electronic device (101) including information that the first transmission power can be changed (e.g., information that the first transmission power can be increased). In one example, the power supply device (601) may not change the charging guide as the first transmission power is changed. In another example, if the first transmission power cannot be changed, the power supply device (601) may transmit feedback to the electronic device (101) including information that the first transmission power cannot be changed. In one example, as the first transmission power cannot be changed, the power supply device (601) may change the charging guide. For example, the power supply device (601) may display a circular charging guide with a narrowed width. An example of specific charging guide adjustment is described in detail later in FIG. 20a. According to another embodiment, the power supply device (601) may establish a communication connection for wireless charging with a plurality of electronic devices. For example, the power supply device (601) may establish a communication connection for wireless charging with a first electronic device (e.g., electronic device (101)) and a second electronic device. In one example, the power supply device (601) may transmit a first transmission power to the first electronic device (e.g., electronic device (101)) through a first charging coil (631) and transmit a second transmission power to the second electronic device through a second charging coil (632). In one example, the first electronic device (e.g., electronic device (101)) and / or the second electronic device may transmit feedback regarding the transmission power to the power supply device (601).In this case, the first electronic device and / or the second electronic device may compare the direction in which the magnetic field formed by the first charging coil (631) is directed with a predetermined critical direction, and if the direction in which the magnetic field formed by the first charging coil (631) is directed exceeds the critical direction, the first electronic device and / or the second electronic device may transmit feedback requesting a change in the charging guide to the power supply device (601). The critical direction may refer to the direction in which the first charging coil (631) of the power supply device (601) must face to charge the first electronic device and / or the second electronic device, considering the location or structure of the wireless charging coil of the first electronic device and / or the second electronic device. In one example, the power supply device (601) may determine whether to change the first charging guide corresponding to the first electronic device based on the first feedback received from the first electronic device (e.g., electronic device (101)). Likewise, the power supply device (601) may determine whether to change the second charging guide corresponding to the second electronic device based on the second feedback received from the second electronic device.

[0109] In the embodiment of FIG. 7, the change of the first transmission power and the change of the charging guide were described in relation to each other, but this is for convenience of explanation and may not actually be related. For example, even if the power supply device (601) can change the first transmission power, the power supply device (601) can change the charging guide at the same time as changing the first transmission power. Through this, the power supply device (601) can maximize the first power received by the electronic device (101).

[0110] FIG. 8 is a diagram illustrating a flowchart for power transmission and reception between a power supply device and an electronic device according to one embodiment.

[0111] FIG. 8 is a diagram illustrating the operation of the electronic device (101) of FIG. 5 and the operation of the power supply device (601) of FIG. 7.

[0112] Referring to FIG. 8, a power supply device (601) according to one embodiment may transmit a ping signal to detect an electronic device (101) in operation 801. In one embodiment, the electronic device (101) may transmit a first feedback to the power supply device (601) in response to receiving the ping signal in operation 803. The first feedback may include first information associated with the electronic device (101). For example, the first information may include at least one of the following: information regarding the size of the wireless charging coil (330) of the electronic device (101); information regarding the critical power required to charge the battery (189) of the electronic device (101); information regarding the type of the electronic device (101) (e.g., bar type, foldable type, smart watch); a first positional relationship between the housing (210) and the power supply device (601); and a second positional relationship between the first part (211) and the second part (212) of the housing (210). In one embodiment, the first positional relationship (e.g., distance, angle) between the housing (210) and the power supply device (601) may be measured in various ways. For example, the electronic device (101) may measure the distance and / or angle with the power supply device (601) using BLE (Bluetooth low energy) or by using an UWB (ultra-wideband) antenna. In one embodiment, the second positional relationship between the first part (211) and the second part (212) of the housing (210) can be measured by at least one sensor of the electronic device (101). For example, the electronic device (101) may include at least one sensor (e.g., a gyroscope, an accelerometer), and using the at least one sensor, the electronic device (101) can measure the angle formed by the first part (211) and the second part (212) of the housing (210).

[0113] In one embodiment, the power supply device (601) can transmit a first transmission power to charge the electronic device (101) in operation 805.

[0114] According to one embodiment, the electronic device (101) can receive a first power through one of the wireless charging coils (330) (e.g., the first wireless charging coil (331)) in operation 807.

[0115] According to one embodiment, the electronic device (101) may transmit information regarding a first power received in operation 809. For example, the information regarding the first power may include a power value of the first power. As another example, the information regarding the first power may include information regarding a determination of whether the first power is greater than a threshold power for charging the electronic device (101). Wireless charging coil (330)

[0116] According to one embodiment, the power supply device (601) may determine a charging coil (e.g., a second charging coil (632)) that transmits a first transmission power based on the first information and second information associated with the first power in operation 811. The second information may include information about the charging coils (630) of the power supply device (601) and / or information about the first transmission power being transmitted to the electronic device (101) through the charging coils (630). For example, the power supply device (601) may determine a charging coil (e.g., a second charging coil (632)) that transmits the first transmission power based on a first positional relationship between the power supply device (601) and the housing (210) of the electronic device (101).

[0117] According to one embodiment, the power supply device (601) may transmit second information associated with the first power in operation 813. The second information may include information about a charging coil (e.g., a second charging coil (632)) of the power supply device (601) that transmits the first transmitted power.

[0118] According to one embodiment, in operation 815, the electronic device (101) can determine one of the wireless charging coils (330) to receive the first power from the power supply device (601) based on the first information and the second information (e.g., the second wireless charging coil (332)). For example, the electronic device (101) can determine one of the wireless charging coils (330) based on the first information including the angle formed by the first part (211) and the second part (212) of the housing (210). For another example, the electronic device (101) can determine one of the wireless charging coils (330) based on the second information including information about the charging coils (630) of the power supply device (601). In one example, to increase the power transmission efficiency between the power supply device (601) and the electronic device (101), the center of the charging coil of the power supply device (601) and the center of the wireless charging coil of the electronic device (101) may correspond. Accordingly, when the first charging coil (631) of the power supply device (601) transmits the first transmission power, the electronic device (101) may determine one of the wireless charging coils (330) of the electronic device (101) (e.g., the second wireless charging coil (332)) having a center corresponding to the center of the first charging coil (631) based on second information containing information about the first charging coil (631) of the power supply device (601).

[0119] According to one embodiment, the power supply device (601) can transmit a first transmission power to charge the electronic device (101) in a magnetic resonance manner in operation 817.

[0120] According to one embodiment, the electronic device (101) can receive a first power through a wireless charging coil (e.g., a second wireless charging coil (332)) determined through operation 815 among the wireless charging coils (330) in operation 819.

[0121] According to one embodiment, the electronic device (101) may request the power supply device (601) to change the first transmission power in operation 821. For example, the electronic device (101) may request the power supply device (601) to change the first transmission power if the first power is still lower than the threshold power even when received through the wireless charging coil (e.g., the second wireless charging coil (3320)) determined through operation 815.

[0122] According to one embodiment, the power supply device (601) may transmit second feedback to the electronic device (101) in response to the first transmission power change request in operation 823. In one embodiment, the electronic device (101) may determine in operation 825 whether to display a user interface on the flexible display (220) that guides the change of the position of the electronic device (101) based on the second feedback. In one embodiment, the electronic device (101) may request the power supply device (601) to change the charging guide. In one embodiment, the power supply device (601) may determine in operation 829 whether to change the charging guide of the power supply device (601) in response to the request to change the charging guide.

[0123] FIG. 9a is a drawing illustrating the arrangement of an electronic device and a power supply device in which a plurality of wireless charging coils are arranged in a first part according to one embodiment.

[0124] Referring to FIG. 9a, a wireless charging coil (330) may be disposed in a first part (211) of a housing (210) according to one embodiment. In one embodiment, a power supply device (601) may transmit a first transmission power to charge an electronic device (101) in a magnetic resonance manner through a first charging coil (631) among a plurality of charging coils (630). Accordingly, the electronic device (101) may receive the first power through one of the wireless charging coils (330) based on the positional relationship (e.g., angle) between the first part (211) and the second part (212) of the housing (210). The selection criteria for the wireless charging coil based on the positional relationship between the first part (211) and the second part (212) will be described in detail later in FIG. 9c.

[0125] FIG. 9b is a drawing illustrating the arrangement structure of wireless charging coils of an electronic device according to an embodiment shown in FIG. 9a.

[0126] Referring to FIG. 9b, the first center of the first wireless charging coil (331) and the second center of the second wireless charging coil (332) according to one embodiment may be different. For example, the first center of the first wireless charging coil (331) may be located at a first point (P1), and the second center of the second wireless charging coil (332) may be located at a second point (P2). Accordingly, the first center of the first wireless charging coil (331) may be located in a first direction (e.g., +z direction) relative to the second wireless charging coil (332).

[0127] According to one embodiment, the electronic device (101) may include a load coil (333), and the load coil (333) may be electrically connected to a wireless charging circuit (340). In one embodiment, the load coil (333) may transmit power received by the first wireless charging coil (331) and / or the second wireless charging coil (332) to the wireless charging circuit (340). For example, referring to the equivalent circuit diagram of FIG. 9b, the case where the first switch circuit (SW1) is short-circuited and the third switch circuit (SW3) is electrically connected to the first capacitor (C1) or the second capacitor (C2) may mean that the electronic device (101) has controlled the first wireless charging coil (331) to receive the first power. In one example, the first power received by the first wireless charging coil (331) can be transmitted to the wireless charging circuit (340) through the load coil (333). In another example, referring to the equivalent circuit diagram of FIG. 9b, the case where the second switch circuit (SW2) is short-circuited and the third switch circuit (SW3) is electrically connected to the first capacitor (C1) or the second capacitor (C2) may mean that the electronic device (101) controls the second wireless charging coil (332) to receive the first power. In one example, the first power received by the second wireless charging coil (332) can be transmitted to the wireless charging circuit (340) through the load coil (333).

[0128] According to one embodiment, the first capacitor (C1) and the second capacitor (C2) may have different capacitance values, and the electronic device (101) may control the third switch circuit (SW3) to adjust the impedance of the wireless charging coils (330). For example, the electronic device (101) may control the third switch circuit (SW3) to electrically connect the wireless charging coils (330) to the first capacitor (C1) or the second capacitor (C2).

[0129] According to another embodiment, the electronic device (101) can control the first switch circuit (SW1) and the second switch circuit (SW2) to utilize the first wireless charging coil (331) and the second wireless charging coil (332) as NFC antennas. For example, the electronic device (101) can short-circuit the first switch circuit (SW1) and the second switch circuit (SW2) and utilize the first wireless charging coil (331) and the second wireless charging coil (332) as NFC antennas.

[0130] FIG. 9c illustrates a flowchart for selecting a wireless charging coil that receives a first power based on the positional relationship between a first part and a second part of an electronic device according to an embodiment shown in FIG. 9a.

[0131] Referring to FIG. 9c, when the electronic device (101) and the power supply device (601) according to one embodiment have the positional relationship shown in FIG. 9a, the operation of the electronic device (101) selecting a wireless charging coil that receives a first power according to the folding angle formed by the first part (211) and the second part (212) of the housing (210) is illustrated.

[0132] According to one embodiment, the electronic device (101) can determine in operation 901 whether the folding angle formed by the first part (211) and the second part (212) is smaller than the first critical angle (A1) (e.g., 45 degrees). In one embodiment, the case where the folding angle is smaller than the first critical angle (A1) may mean that the electronic device (101) is in a folded state. In one embodiment, if it is determined that the folding angle is smaller than the first critical angle (A1), the electronic device (101) can select a wireless charging coil adjacent to the power supply device (601) in operation 903. For example, when the folding angle is 0 degrees, the second wireless charging coil (332) is relatively closer to the power supply device (601) than the first wireless charging coil (331), so the electronic device (101) can select the second wireless charging coil (332). In the above operation 903, the power transmission efficiency can be maximized by selecting a wireless charging coil adjacent to the power supply device (601).

[0133] According to one embodiment, if the electronic device (101) determines that the folding angle is not smaller than the first threshold angle (A1), the electronic device (101) can determine in operation 905 whether the folding angle of the first part (211) and the second part (212) is greater than the first threshold angle (A1) and less than 90 degrees. In one embodiment, if the folding angle is greater than the first threshold angle (A1) and less than 90 degrees, the electronic device (101) can select a wireless charging coil corresponding to the center of the first charging coil (631) of the power supply device (601) in operation 907. For example, when the folding angle is greater than the first critical angle (A1) and less than 90 degrees, the first center of the first wireless charging coil (331) corresponds to the center of the first charging coil of the power supply device (601) relatively to the second center of the second wireless charging coil (332), the electronic device (101) can select the first wireless charging coil (331). This allows the electronic device (101) to maximize the transmission efficiency of the power it receives.

[0134] According to one embodiment, if the electronic device (101) determines that the folding angle is not less than 90 degrees, in operation 909, it can determine whether the folding angle is greater than 90 degrees and less than the second threshold angle (A2) (e.g., 135 degrees). In one embodiment, if it determines that the folding angle is greater than 90 degrees and less than the second threshold angle (A2), in operation 911, the electronic device (101) can select a wireless charging coil corresponding to the center of the first charging coil (631) of the power supply device (601) and perform impedance matching. For example, the electronic device (101) can select the first wireless charging coil (331). Additionally, the electronic device (101) can perform impedance matching by taking into account the influence of the substrate of the flexible display (220). The reason the electronic device (101) performs additional impedance matching in operation 911, unlike in operation 907, is as follows. For example, when the folding angle is about 120 degrees (in the case of operation 911), unlike when the folding angle is about 75 degrees (in the case of operation 907), the substrate of the flexible display (220) can affect the wireless charging of the power supply device (601). Therefore, in this case, impedance matching using a lumped element can be performed by taking into account the influence of the substrate of the flexible display (220).

[0135] According to one embodiment, if the electronic device (101) determines that the folding angle is greater than the second critical angle (A2), the electronic device (101) can select a wireless charging coil adjacent to the power supply device (601) in operation 913 and perform impedance matching. For example, the electronic device (101) can select a first wireless charging coil (331) adjacent to the power supply device (601) among the wireless charging coils (330) in operation 913. Additionally, the electronic device (101) can perform impedance matching by taking into account the influence of the flexible display (220).

[0136] FIG. 10a is a drawing illustrating the arrangement of an electronic device and a power supply device in which a plurality of wireless charging coils are arranged in a first part according to one embodiment.

[0137] Referring to FIG. 10a, the power supply device (601) according to one embodiment can transmit the first transmission power to the electronic device (101) through the second charging coil (632), unlike the embodiment of FIG. 9a.

[0138] FIG. 10b illustrates a flowchart for selecting a wireless charging coil that receives a first power based on the positional relationship between a first part and a second part of an electronic device according to one embodiment of FIG. 10a.

[0139] Referring to FIG. 10b, an electronic device (101) according to one embodiment can determine in operation 1001 whether the folding angle formed by the first part (211) and the second part (212) of the housing (210) is greater than 90 degrees. In one embodiment, if the folding angle is less than 90 degrees, the electronic device (101) can select a wireless charging coil adjacent to the power supply device in operation 1003. For example, if the folding angle is 45 degrees, the second wireless charging coil (332) may be relatively closer to the power supply device (601) than the first wireless charging coil (331). Accordingly, the electronic device (101) can select the second wireless charging coil (332) which is relatively closer to the power supply device (601) among the wireless charging coils (330).

[0140] In one embodiment, when the folding angle is greater than 90 degrees, the electronic device (101) can select a wireless charging coil adjacent to the power supply device (601) in operation 1005 and perform impedance matching. For example, when the folding angle is 120 degrees, the electronic device (101) can select a second wireless charging coil (332) adjacent to the power supply device (601) among the wireless charging coils (330). Additionally, the electronic device (101) can perform impedance matching by taking into account the influence of the substrate of the flexible display (220).

[0141] FIG. 11a is a drawing illustrating the arrangement of an electronic device and a power supply device in which a plurality of wireless charging coils are arranged in a second part according to one embodiment.

[0142] Referring to FIG. 11a, the housing (1120) of an electronic device (1100) according to one embodiment may include a first part (1121) and a second part (1122), and unlike the plurality of charging coils (330) of FIG. 10a, the plurality of charging coils (1130) may be disposed in the second part (1122) of the housing (1120). The electronic device (101) may perform impedance matching of the plurality of wireless charging coils (1130) based on the positional relationship between the first part (1121) and the second part (1122) of the housing (1120). Below, FIG. 11b describes a specific method of impedance matching based on the positional relationship between the first part (1121) and the second part (1122).

[0143] FIG. 11b illustrates a flowchart for performing impedance matching according to the positional relationship between a first part and a second part of a housing according to an embodiment shown in FIG. 11a.

[0144] Referring to FIG. 11b, an electronic device (1100) according to one embodiment can determine in operation 1101 whether the folding angle formed by the first part (1121) and the second part (1122) of the housing (1120) is smaller than a first critical angle (A1) (e.g., 45 degrees). In one embodiment, if the electronic device (1100) determines that the folding angle is smaller than the first critical angle (A1), the electronic device (1100) can connect a first wireless charging coil (1131) receiving first power in operation 1102 to a first lumped element having a first inductance value and / or a first capacitance value. In one embodiment, as the first wireless charging coil (1131) is electrically connected to the first lumped element (e.g., capacitor, inductor), the electronic device (1100) can minimize the influence of the housing (1120) and prevent a decrease in resonance efficiency. For example, when receiving the first power from the power supply device (601) through a plurality of wireless charging coils (1130) placed in the second part (1122) of the housing (1120), the first part (1121) containing a conductive material (e.g., aluminum) may have an influence. Therefore, to minimize the influence of the first part (1121) containing a conductive material, the electronic device (1100) can minimize the influence of the housing (1120) by electrically connecting the first lumped element and the first wireless charging coil (1131).

[0145] According to one embodiment, if the electronic device (1100) determines that the folding angle is greater than the first threshold angle (A1) (e.g., 45 degrees), it can determine in operation 1103 whether the folding angle is greater than the first threshold angle (A1) and less than 90 degrees. In one embodiment, if the electronic device (1100) determines that the folding angle is greater than the first threshold angle (A1) and less than 90 degrees, the electronic device (1100) can connect the first wireless charging coil (1131) to a second lumped element having a second inductance value and / or a second capacitance value in operation 1104. In one embodiment, the second inductance value may be smaller than the first inductance value, and the second capacitance value may be smaller than the first capacitance value. The reason why the electronic device (101) in operation 1104 connects the first wireless charging coil (1131) to a second lumped element having a smaller inductance and / or capacitance value than the first lumped element is as follows. For example, as the angle between the first part (1121) and the second part (1122) of the housing (1120) becomes smaller, the influence of the first part (1121), which contains a conductive material, on the plurality of wireless charging coils (1130) placed in the second part (1122) may increase. Accordingly, the inductance and / or capacitance values ​​that must be offset through impedance matching may also become smaller. Consequently, as the angle between the first part (1121) and the second part (1122) becomes larger, the inductance and / or capacitance values ​​of the lumped element for impedance matching may become smaller.

[0146] According to one embodiment, if the electronic device (1100) determines that the folding angle is greater than 90 degrees, the electronic device (1100) may determine in operation 1105 whether the folding angle is greater than 90 degrees and less than a second threshold angle (A2) (e.g., 135 degrees). In one embodiment, if the electronic device (1100) determines that the folding angle is greater than 90 degrees and less than a second threshold angle (A2), the electronic device (1100) may connect the first wireless charging coil (1131) to a third lumped element having a third inductance value and / or a third capacitance value in operation 1106. In one embodiment, the third inductance value may be smaller than the second inductance value, and the third capacitance value may be smaller than the second capacitance value.

[0147] According to one embodiment, if the electronic device (1100) determines that the folding angle is greater than the second critical angle (A2), the electronic device (1100) may connect the first wireless charging coil (1131) in operation 1107 to a fourth lumped element having a fourth inductance value and / or a fourth capacitance value. In one embodiment, the fourth inductance value may be smaller than the third inductance value, and the fourth capacitance value may be smaller than the third capacitance value.

[0148] FIG. 11c is a diagram illustrating the change in the center of wireless charging coils through the connection of inductors.

[0149] Referring to FIG. 11c, an electronic device (1100) according to one embodiment may include a first wireless charging coil (1131), a second wireless charging coil (1132), and a load coil (1133). In one embodiment, the first wireless charging coil (1131) may have a third center (P3), and the second wireless charging coil (1132) may have a fourth center (P4).

[0150] According to one embodiment, the electronic device (1100) can control the fourth switch circuit (SW4) to connect an additional inductor (L1) to the first wireless charging coil (1131) or the second wireless charging coil (1132). In one embodiment, the center of the magnetic field formed by the first wireless charging coil (1131) can be changed from the third center (P3) to the fourth center (P4).

[0151] In one embodiment, the fourth center (P4) of the first wireless charging coil (1131) to which the additional inductor (L1) is electrically connected can be aligned with the center of the charging coil of the power supply (601) relatively more than the third center (P3), and as a result, the electronic device (101) can receive relatively more power from the power supply (601). That is, the power transmission efficiency of the power supply (601) can be improved.

[0152] In the embodiment of FIG. 11c, it was explained that the center of the magnetic field formed by the first wireless charging coil (1131) changes from the third center (P3) to the fourth center (P4) by connecting an additional inductor (L1) to the first wireless charging coil (1131), but this is merely an example. In reality, the center of the magnetic field formed by the first wireless charging coil (1131) can be changed to various positions by connecting an additional inductor (L1) to the first wireless charging coil (1131). For example, depending on the electrical length (or inductance value) of the additional inductor (L1), the center of the magnetic field formed by the first wireless charging coil (1131) can move from the third center (P3) to the first direction (e.g., -y direction) or the second direction (e.g., +y direction). As another example, the center of the magnetic field formed by the first wireless charging coil (1131) can move from the third center (P3) in a third direction (e.g., -x direction) or a fourth direction (e.g., +x direction). As another example, the center of the magnetic field formed by the first wireless charging coil (1131) can move in a diagonal direction.

[0153] In the embodiment of FIG. 11c, the first wireless charging coil (1131) was described as the main focus, but this is merely an example and the technical concept described in FIG. 11c can also be applied to the second wireless charging coil (1132).

[0154] In the embodiment of FIG. 11c, the electronic device (101) is described as including both the first wireless charging coil (1131) and the second wireless charging coil (1132), but this is for convenience of explanation and in other embodiments, only one of the first wireless charging coil (1131) or the second wireless charging coil (1132) may be included.

[0155] FIG. 12 is a flowchart illustrating additional inductor connections according to the folding angle between the first and second parts of the housing.

[0156] Referring to FIG. 12, an electronic device (101) according to one embodiment can determine whether the power supply device (601) transmits power through the first charging coil (631) in operation 1201. For example, the power supply device (601) can transmit power to the electronic device (101) through the first charging coil (631) as described in FIG. 9a, and can transmit power to the electronic device (101) through the second charging coil (632) as described in FIG. 10a. In one example, the electronic device (101) can obtain information from the power supply device (601) regarding whether the coil transmitting power among the charging coils (630) is the first charging coil (631) or the second charging coil (632), and can determine whether the power supply device (601) transmits power through the first charging coil (631) based on the information.

[0157] According to one embodiment, when the power supply device (601) does not transmit power through the first charging coil (631), the electronic device (101) may connect an additional inductor to the wireless charging coil (330) in operation 1203. For example, when the power supply device (601) transmits power through the second charging coil (632) rather than the first charging coil (631), the electronic device (101) may connect an additional inductor (L1) to the wireless charging coil (330) to maximize the magnitude of the first power received.

[0158] According to one embodiment, when the power supply device (601) transmits power through the first charging coil (631), the electronic device (101) can determine in operation 1205 whether the folding angle of the first part (211) and the second part (212) of the housing (210) is greater than the first threshold angle (A1) (e.g., 45 degrees) and less than the second threshold angle (A2) (e.g., 135 degrees). In one embodiment, if the folding angle is greater than the first threshold angle (A1) and less than the second threshold angle (A2), the electronic device (101) may not connect an additional inductor (L1) to the wireless charging coil (330). When the folding angle is greater than the first critical angle (A1) and smaller than the second critical angle (A2), it may mean that the center of the magnetic field formed by the wireless charging coil (330) of the electronic device (101) is aligned with the center of the magnetic field of the power supply device (601). Accordingly, the electronic device (101) can receive power greater than the critical power required to charge the electronic device (101) without connecting a separate additional inductor (L1), and thus the additional inductor (L1) may not be connected to the wireless charging coil (330).

[0159] According to one embodiment, if the folding angle is less than or equal to the first critical angle (A1) or if the folding angle is greater than or equal to the second critical angle (A2), the electronic device (101) may connect an additional inductor (L1) to the wireless charging coil (330) in operation 1203. In one embodiment, if the folding angle is less than the first critical angle (A1) or greater than the second critical angle (A2), it may mean that the electronic device (101) is substantially in an unfolded state or an unfolded state. In this case, the center of the magnetic field formed by the wireless charging coil (330) of the electronic device (101) may not be aligned with the center of the magnetic field formed by the first charging coil (631) of the power supply device (601). Accordingly, the electronic device (101) may electrically connect an additional inductor (L1) to the wireless charging coil (330) to increase the received power. Through the connection of the additional inductor (L1), the center of the wireless charging coil (330) can be aligned with the center of the first charging coil (631) of the power supply device (601) relative to the center before the connection of the additional inductor (L1). Accordingly, the electronic device (101) can maximize the received power by connecting the additional inductor (L1) to the wireless charging coil (330).

[0160] FIG. 13 illustrates a flowchart for selecting a wireless charging coil and an impedance matching method corresponding to the positional relationship between a first part and a second part of a housing using a memory according to one embodiment.

[0161] Referring to FIG. 13, an electronic device (101) according to one embodiment may select one of the wireless charging coils (330) (e.g., a first wireless charging coil (331)) and perform impedance matching based on information associated with the electronic device (101) and information associated with the first power in operation 1301. In one embodiment, the information associated with the electronic device (101) may include the type of the electronic device (101), the positional relationship between the electronic device (101) and the power supply device (601), the critical power of the electronic device (101), and / or information regarding the positional relationship between the first part (211) and the second part (212) of the housing (210) of the electronic device (101). In one embodiment, the information associated with the first power may include information regarding the charging coils (630) of the power supply device (601) and / or information regarding numerical information of the first power.

[0162] According to one embodiment, the electronic device (101) can determine whether the first power received in operation 1303 is lower than the threshold power. In one embodiment, if the electronic device (101) determines that the first power received is lower than the threshold power, the electronic device (101) can store information about the wireless charging coil (e.g., the first wireless charging coil (331) or the second wireless charging coil (332)) that has secured the maximum received power while receiving the first power during the period specified in operation 1305 in memory (e.g., memory (130) of FIG. 1).

[0163] According to one embodiment, the electronic device (101) can determine in operation 1307 whether there is prior information regarding a wireless charging coil (e.g., a first wireless charging coil (331)) capable of securing maximum received power under conditions specified in memory (130). In one embodiment, the specified conditions may refer to conditions regarding the folding angle of the housing (210) and the relative distance between the electronic device (101) and the power supply device (601). In one embodiment, if the electronic device (101) determines that there is no prior information regarding a wireless charging coil capable of securing maximum received power under conditions specified in memory (130), the electronic device (101) can select one of the wireless charging coils (330) based on information regarding the wireless charging coil that secured maximum received power while receiving the first power, and can perform impedance matching.

[0164] According to one embodiment, if the electronic device (101) determines that there is prior information regarding a wireless charging coil capable of securing maximum received power under conditions specified in the memory (130), the electronic device (101) can select one of the wireless charging coils (330) based on the prior information obtained from the memory (130) and can perform impedance matching.

[0165] FIG. 14 is a flowchart illustrating the contents of a power supply device displaying a charging guide according to one embodiment.

[0166] Referring to FIG. 14, a power supply device (601) according to one embodiment may display a charging guide in operation 1401. For example, the display circuit (650) of the power supply device (601) may include a light-emitting circuit, and the power supply device (601) may control the display circuit (650) to display a charging guide around the power supply device (601). In one embodiment, the charging guide may distinguish the minimum distance required for the electronic device (101) to be charged. For example, based on the charging guide displayed by the power supply device (601), the area within the charging guide may be charged because the first power received by the electronic device (101) is greater than the threshold power. In another example, based on the charging guide displayed by the power supply device (601), the area outside the charging guide may not be charged because the first power received by the electronic device (101) is less than the threshold power.

[0167] According to one embodiment, the power supply unit (601) may receive a request to change the charging guide from the electronic device (101) in operation 1403 or identify a change in the positional relationship of the electronic device (101). For example, the electronic device (101) may request the power supply unit (601) to change the charging guide if the first power received is still less than the threshold power value even though it is placed in an area within the charging guide. In one example, the power supply unit (601) may receive a request to change the charging guide from the electronic device (101). In another example, if the distance and / or direction between the electronic device (101) and the power supply unit (601) changes, thereby changing the positional relationship between the electronic device (101) and the power supply unit, the power supply unit (601) may identify the change in the positional relationship.

[0168] According to one embodiment, the power supply device (601) may receive information about the electronic device (101) in operation 1405. In one embodiment, the information about the electronic device (101) may include at least one of the type of the electronic device (101) (e.g., bar type, foldable type), information about the power received by the electronic device (101), information about the critical power of the electronic device (101), or the positional relationship between the electronic device (101) and the power supply device (601).

[0169] According to one embodiment, the power supply device (601) may determine whether to change the charging guide based on the received information in operation 1407. For example, the power supply device (601) may not change the charging guide if it determines that the first power received by the electronic device (101) is higher than the threshold power. As another example, the power supply device (601) may change the charging guide if it determines that the first power received by the electronic device (101) is lower than the threshold power.

[0170] According to one embodiment, the power supply device (601) may display a charging guide based on the decision in operation 1409. For example, if it is decided to change the charging guide, the electronic device (101) may change the shape and / or width of the charging guide. An embodiment of changing the width of the charging guide is described below in FIG. 20a. As another example, if it is decided not to change the charging guide, the electronic device (101) may display the shape and / or width of the charging guide substantially the same as before receiving a request to change the charging guide from the electronic device (101).

[0171] FIG. 15a is a flowchart illustrating the display of a charging guide of a power supply device in response to a request to change the charging guide of an electronic device according to one embodiment.

[0172] Referring to FIG. 15a, a power supply device (601) according to one embodiment can display a charging guide in operation 1501.

[0173] According to one embodiment, the electronic device (101) can change the position guide of the electronic device (101) in operation 1503. For example, the electronic device (101) can display a position guide on the flexible display (220) of the electronic device (101) requesting to change the position of the electronic device (101) when the received first power is less than the threshold power for charging the electronic device (101).

[0174] According to one embodiment, the electronic device (101) may transmit a request to the power supply device (1505) to change the charging guide in operation 1505. For example, the electronic device (101) may request the power supply device (601) to change the charging guide if the first power received is still less than the threshold power value even though it is placed in an area within the charging guide.

[0175] According to one embodiment, the power supply device (1507) may receive a charging guide change request transmitted by the electronic device (101) in operation 1507. In one embodiment, the electronic device (101) may request information about the electronic device (101) in operation 1509. In one embodiment, the information about the electronic device (101) may include at least one of the type of the electronic device (101) (e.g., bar type, foldable type), information about the power received by the electronic device (101), information about the critical power of the electronic device (101), or the positional relationship between the electronic device (101) and the power supply device (601).

[0176] According to one embodiment, the electronic device (101) can identify information about the electronic device (101) through at least one sensor in operation 1511. For example, the electronic device (101) may include at least one sensor (e.g., a gyroscope, an accelerometer, an infrared sensor). In one example, the electronic device (101) can identify information about the positional relationship of the electronic device (101) (e.g., the angle and direction formed by the first part (211) and the second part (212) of the housing (210)) through the gyroscope and / or accelerometer. In another example, the electronic device (101) can identify information about the relative distance between the power supply (601) and the electronic device (101) using an infrared sensor.

[0177] According to one embodiment, the electronic device (101) can transmit information about the electronic device (101) in operation 1513.

[0178] In the embodiment of FIG. 15a, it is described that the electronic device (101) requests information about the electronic device (101) in operation 1509 and transmits information about the electronic device (101) in operation 1513; however, this is merely an example, and the operation of the power supply device (601) requesting and receiving information about the electronic device (101) (e.g., operations 1509 to 1515) may be omitted. For example, even if the power supply device (601) does not separately request information about the electronic device (101) that needs to be identified for guide change, the electronic device (101) may transmit information about the electronic device (101) simultaneously with transmitting a guide change request in operation 1505. In this case, the operation of the power supply device (601) requesting and receiving information about the electronic device (101) in operations 1509 to 1515 may be omitted. As another example, regarding a request to change the guide of the electronic device (101), the power supply device (601) may determine whether to change the charging guide based on existing stored information without acquiring new information about the electronic device (101). In this case, the operation of the power supply device (601) requesting and receiving information about the electronic device (101) in operation 1509 to operation 1515 may be omitted.

[0179] In one embodiment, the power supply device (601) may receive information about the electronic device (101) in operation 1515. The power supply device (601) may determine whether to change the charging guide based on the information in operation 1517. In one embodiment, the power supply device (601) may display the charging guide based on the determination in operation 1519.

[0180] FIG. 15b is a flowchart illustrating a charging guide display of a power supply device according to an embodiment, which identifies a change in the positional relationship of an electronic device.

[0181] Referring to FIG. 15b, a power supply device (601) according to one embodiment can display a charging guide in operation 1521.

[0182] According to one embodiment, the electronic device (101) can identify a change in the positional relationship of the electronic device (101) through at least one sensor in operation 1523. For example, the electronic device (101) may move further away or closer to the power supply unit (601) by the user. The electronic device (101) may include a gyroscope sensor and / or an accelerometer sensor, and the change in the positional relationship of the electronic device (101) with respect to the power supply unit (601) can be identified using the gyroscope sensor and / or accelerometer sensor. As another example, the folding angle formed by the first part (211) and the second part (212) of the electronic device (101) may change by the user. The electronic device (101) can identify a change in the positional relationship of the electronic device (101) according to a change in the folding angle using the gyroscope sensor and / or accelerometer sensor.

[0183] According to one embodiment, the electronic device (101) can transmit information about a change in positional relationship to the power supply device (601) in operation 1525. In one embodiment, the power supply device (601) can receive information about a change in positional relationship of the electronic device (101) in operation 1527.

[0184] According to one embodiment, the power supply unit (601) may request changed information about the electronic device (101) in operation 1529. In one embodiment, the information about the electronic device (101) may include at least one of information about the power received by the electronic device (101), information about the threshold power of the electronic device (101), or a positional relationship (e.g., distance) between the electronic device (101) and the power supply unit (601).

[0185] According to one embodiment, the electronic device (101) may transmit changed information regarding the electronic device (101) in operation 1531. For example, the electronic device (101) may transmit information regarding the received power that has changed as the relative distance from the power supply device (601) increases. As another example, information regarding the received power that has changed as the angle formed by the first part (211) and the second part (212) of the housing (210) of the electronic device (101) changes may be transmitted. In one embodiment, the power supply device (601) may receive information regarding the electronic device (101) in operation 1533. In one embodiment, the power supply device (601) may determine whether to change the charging guide based on the information in operation 1535. In one embodiment, the power supply device (601) may display the charging guide based on the determination in operation 1537.

[0186] FIG. 16a is a diagram illustrating the operation of a power supply device changing a charging guide according to the folding angle of an electronic device according to one embodiment.

[0187] Referring to FIG. 16a, a power supply device (601) according to one embodiment may display a charging guide in operation 1601. For example, the power supply device (601) may display a circular guide along the periphery of the power supply device (601).

[0188] According to one embodiment, the power supply unit (601) may receive information regarding the folding angle of the electronic device (101) and information regarding the first power in operation 1603. For example, the user may change the angle formed by the first part (211) and the second part (212) of the housing (210) during charging of the electronic device (101). In one example, the electronic device (101) may include at least one sensor (e.g., a gyroscope, an accelerometer) and may identify that the folding angle of the first part (211) and the second part (212) has changed through the at least one sensor. The electronic device (101) may transmit information regarding the folding angle to the power supply unit (601). In another example, the electronic device (101) may transmit information regarding the first power received from the power supply unit (601) to the power supply unit (601).

[0189] According to one embodiment, the power supply device (601) may determine whether to change the charging guide based on information regarding the folding angle received in operation 1605 and / or information regarding the first power. For example, the power supply device (601) may determine that when the electronic device (101) is in a folded state when considering the folding angle of the electronic device (101), the power received by the electronic device (101) will decrease due to the influence of the flexible display (220). Accordingly, the power supply device (601) may decide to narrow the width of the charging guide to increase the power transmission efficiency to the electronic device (101).

[0190] According to one embodiment, the power supply device (601) may display a charging guide based on a decision regarding whether to change the charging guide in operation 1607. For example, if it is decided to change the charging guide, the power supply device (601) may change the shape of the charging guide or adjust the width of the charging guide. As another example, if it is decided not to change the charging guide, the power supply device (601) may display the charging guide that was previously displayed as is.

[0191] FIG. 16b illustrates a flowchart for determining whether to change the guide based on information regarding the positional relationship of a plurality of electronic devices when a power supply device according to one embodiment is electrically connected to a plurality of electronic devices.

[0192] Referring to FIG. 16b, a power supply device (601) according to one embodiment may display a charging guide in operation 1611. For example, the power supply device (601) may display a circular guide along the periphery of the power supply device (601). In one embodiment, the power supply device (601) may be connected to a plurality of electronic devices, and in this case, a plurality of charging guides for the plurality of electronic devices may be displayed. For example, among the plurality of electronic devices, the first electronic device is a wearable electronic device (e.g., a smart watch) and the second electronic device is an electronic device (101). In this case, the wireless charging coils included in the first electronic device may have a different size from the wireless charging coil (330) of the electronic device (101). Therefore, even if the first electronic device and the electronic device (101) are located at substantially the same distance from the power supply device (601), the magnitude of the power received by the first electronic device and the electronic device (101) may be different. Accordingly, the power supply device (601) can display multiple charging guides corresponding to multiple electronic devices. In another embodiment, the power supply device (601) can display a single charging guide regardless of the type of multiple electronic devices.

[0193] According to one embodiment, the power supply device (601) may receive information about a plurality of electronic devices in operation 1613. For example, the information about the plurality of electronic devices may include at least one of information about wireless charging coils of the plurality of electronic devices, information about the threshold power required to charge the batteries of the plurality of electronic devices, information about the type of the plurality of electronic devices (e.g., bar type, foldable type, smart watch), information about the relative distance between the power supply device (601) and each of the plurality of electronic devices, and information about the power that each of the plurality of electronic devices is receiving. The information about the plurality of electronic devices may be stored in a memory (e.g., memory (130) of FIG. 1).

[0194] According to one embodiment, the power supply device (601) may determine whether to change the charging guide based on information regarding a plurality of electronic devices received in operation 1615. In one embodiment, determining whether to change the charging guide may mean determining whether the power supply device (601) changes the number and / or size of the charging guides to be displayed. For example, the power supply device (601) may decide to narrow the width of the plurality of charging guides to increase the power transmission efficiency for the plurality of electronic devices.

[0195] In one embodiment, the power supply device (601) may change the number of charging guides as follows. For example, if the power supply device (601) displayed multiple charging guides in operation 1611, but there is only one electronic device connected to the power supply device (601), the power supply device (601) may decide to display only one charging guide. As another example, if the power supply device (601) displayed one charging guide in operation 1611, but there are multiple electronic devices connected to the power supply device (601), the power supply device (601) may decide to display multiple charging guides. According to one embodiment, the power supply device (601) may display multiple charging guides corresponding to multiple electronic devices based on the decision regarding whether to change the charging guides in operation 1617. For example, if it is decided to change the charging guides, the power supply device (601) may change the shape of the charging guides or adjust the width of the charging guides. As another example, if it is decided not to change the charging guide, the power supply unit (601) can display the charging guide that was previously displayed.

[0196] According to one embodiment, when the power supply device (601) displays a plurality of charging guides, it may display charging guides by considering the types of electronic devices and / or the positional relationship with the electronic devices.

[0197] For example, the first electronic device may be a wearable device (e.g., earbuds) and the second electronic device may be a mobile communication device (e.g., a mobile phone). In one example, when there is no change in the positional relationship between the first electronic device and the second electronic device (e.g., relative distance from the power supply device (601)), the power supply device (601) may display multiple charging guides based on the types of the first electronic device and the second electronic device. For example, the second electronic device may include a wireless charging coil that is relatively larger than that of the first electronic device, and the power supply device (601) may display multiple charging guides taking this into account.

[0198] As another example, if the positional relationship between the first electronic device and the power supply device (601) has changed but the positional relationship between the second electronic device and the power supply device (601) has not changed, the power supply device (601) can display a first charging guide by taking into account the changed positional relationship with the first electronic device and the type of the first electronic device (e.g., a wearable device). On the other hand, since the positional relationship of the second electronic device has not changed, the power supply device (601) can display a second charging guide based on the type of the second electronic device (e.g., a mobile communication device).

[0199] As another example, if the positional relationship between the first electronic device and the power supply device (601) and the positional relationship between the second electronic device and the power supply device (601) are both changed, the power supply device (601) can display a first charging guide by taking into account both the changed positional relationship and type (e.g., wearable device) of the first electronic device. Additionally, the power supply device (601) can display a second charging guide by taking into account both the changed positional relationship and type (e.g., mobile communication device) of the second electronic device.

[0200] FIG. 16c is a diagram illustrating the operation of a first electronic device and a second electronic device that transmit feedback to a power supply device based on the distance from the received power or power supply device according to one embodiment.

[0201] Referring to FIG. 16c, according to one embodiment, a first electronic device (e.g., electronic device (101)) may transmit first information about the first electronic device to a power supply device (601) in operation 1621. In one embodiment, the first information about the first electronic device may include information about the type of the first electronic device, the number and / or size of the wireless charging coils included in the first electronic device, the positional relationship of the first electronic device, and / or the first threshold power of the first electronic device. In one embodiment, the second electronic device may transmit second information about the second electronic device in operation 1622. In one embodiment, the second information about the second electronic device may include information about the type of the second electronic device, the number and / or size of the wireless charging coils included in the second electronic device, the positional relationship of the second electronic device, and / or the second threshold power of the second electronic device.

[0202] According to one embodiment, the power supply device (601) may display a charging guide in operation 1623. In one embodiment, the power supply device (601) may display charging guides based on the first information and the second information. For example, the power supply device (601) may display a first charging guide based on the positional relationship of the first electronic device (e.g., the relative distance between the first electronic device and the power supply device (601), the angle between the housings if the first electronic device is a foldable device) and the type of the first electronic device. As another example, the power supply device (601) may display a second charging guide based on the positional relationship of the second electronic device and / or the type of the second electronic device.

[0203] According to one embodiment, the power supply device (601) can transmit power to a plurality of electronic devices (e.g., a first electronic device, a second electronic device) in operation 1624. For example, the power supply device (601) can transmit a first transmission power to the first electronic device. For another example, the power supply device (601) can transmit a second transmission power to the second electronic device. In one embodiment, the first transmission power and the second transmission power may be the same or different.

[0204] According to one embodiment, the first electronic device may receive a first power from the power supply device (601) in operation 1625. The first electronic device may compare the first power identified in operation 1626 with a first threshold power required to charge the first electronic device. In another embodiment, the first electronic device may identify a first distance relative to the power supply device (601) instead of identifying the first power received from the power supply device (601). In this case, the first electronic device may compare the first threshold distance required to charge the first electronic device with the first distance.

[0205] According to one embodiment, the second electronic device may receive second power from the power supply unit (601) in operation 1627. The second electronic device may compare the second power identified in operation 1628 with the second threshold power required to charge the second electronic device. In another embodiment, instead of identifying the second power received from the power supply unit (601), the second electronic device may identify a second distance relative to the power supply unit (601). In this case, the first electronic device may compare the second threshold distance required to charge the second electronic device with the second distance.

[0206] According to one embodiment, the first electronic device may transmit a first feedback to the power supply device (601) in operation 1629. For example, the first feedback may include information requesting a change in the charging guide of the power supply device (601). For example, the first electronic device may transmit a first feedback including information requesting a change in the charging guide of the power supply device (601) when the first power is lower than the first threshold power. As another example, the first feedback may include information that the first power is greater than the first threshold power.

[0207] In one embodiment, the second electronic device may transmit second feedback to the power supply device (601) in operation 1630. For example, the second feedback may include information requesting a change in the charging guide of the power supply device (601). As another example, the second feedback may include information that the second power is greater than the second threshold power.

[0208] According to one embodiment, the power supply device (601) may determine whether to change the charging guide based on the first feedback and the second feedback in operation 1631. For example, the power supply device (601) may determine to change the location where the charging guide is displayed if the received first feedback includes information requesting a change to the charging guide. As another example, the power supply device (601) may determine not to change the charging guide if the received first feedback includes information that the first power is higher than the first threshold power.

[0209] In one embodiment, the power supply device (601) may display a charging guide based on the determination of whether to change the charging guide in operation 1632. For example, the power supply device (601) may display a first charging guide corresponding to the first electronic device by reducing its width.

[0210] FIG. 17 illustrates a drawing showing a single charging guide of a power supply device according to one embodiment.

[0211] Referring to FIG. 17, a power supply device (601) according to one embodiment may display a single first charging guide (1711) for a plurality of electronic devices. For example, the power supply device (601) may display a first charging guide (1711) for an electronic device (101) connected to the power supply device (601), a first wearable electronic device (1701), and a second wearable electronic device (1702). In one embodiment, based on the first charging guide (1711), an area in which the first power received by the plurality of electronic devices is greater than the threshold power of the plurality of electronic devices may be distinguished. For example, based on the first charging guide (1711), an area inside the first charging guide may mean an area in which the received first power is greater than the first threshold power for charging the first wearable device (1701). As another example, based on the first charging guide (1711), the area inside the second charging guide may mean an area where the received second power is greater than the second threshold power for charging the second wearable device (1702).

[0212] According to one embodiment, the first charging guide (1711) may have various shapes. For example, the first charging guide (1711) may have a circular shape centered on the power supply device (601). As another example, the first charging guide (1711) may have a square or rectangular shape.

[0213] FIG. 18 is a drawing showing a power supply device according to one embodiment displaying a plurality of charging guides corresponding to a plurality of electronic devices.

[0214] Referring to FIG. 18, a power supply device (601) according to one embodiment may display a plurality of charging guides (1711, 1812) corresponding to a plurality of electronic devices (e.g., electronic device (101), first wearable electronic device (1701), second wearable electronic device (1702)). For example, the power supply device (601) may display a first charging guide (1711) corresponding to the electronic device (101). As another example, the power supply device (601) may display a second charging guide (1812) corresponding to the first wearable electronic device (1701) and / or the second wearable electronic device (1702). In one embodiment, the power supply device (601) may prevent some of the plurality of electronic devices from not being charged by displaying a plurality of charging guides (1711, 1812) corresponding to the plurality of electronic devices. For example, the first wearable device (1701) may have fewer or smaller coils for wireless charging compared to the electronic device (101). Therefore, if the power supply device (601) displays only a single charging guide (e.g., the first charging guide (1711)), the first wearable device (1701) may have reduced charging efficiency or may not be charged. On the other hand, as the power supply device (601) of one embodiment displays multiple charging guides (1711, 1812) corresponding to multiple electronic devices, the power supply device (601) can prevent some of the multiple electronic devices from not being charged.

[0215] FIG. 19a is a drawing for explaining a position guide of an electronic device according to one embodiment.

[0216] Referring to FIG. 19a, an electronic device (101) according to one embodiment may display a position guide (1911, 1912) on a flexible display (220). In one embodiment, the position guide (1911, 1912) may correspond to a user interface displayed on the flexible display.

[0217] In one embodiment, the electronic device (101) can provide information to the user about the location where the electronic device (101) should be placed to be charged by displaying the position guides (1911, 1912) on the flexible display (220). For example, the electronic device (101) can display the first position guide (1911) and the second position guide (1912) on the flexible display (220). The electronic device (101) can provide information about the first position guide (1911) as text on the second position guide (1912). For example, the electronic device (101) can provide information about the first position guide (1911) to the user by displaying the phrase “Please place this guide between the guides” on the second position guide (1912).

[0218] According to one embodiment, the second charging guide (1812) can guide the position where the electronic device (101) is to be placed together with the first charging guide (1811), as well as corresponding to the first wearable device (1701) and / or the second wearable device (1702).

[0219] FIG. 19b illustrates a change in the position guide display of an electronic device according to the direction in which the electronic device is facing in one embodiment.

[0220] Referring to FIG. 19b, if an electronic device (101) according to one embodiment is misaligned with a power supply unit (601), the electronic device (101) may display a user interface on a flexible display (220) requesting a change in the position of the electronic device (101). For example, the electronic device (101) may display an indicator (e.g., an arrow) on the flexible display (220) pointing in the direction in which the electronic device (101) needs to be moved to be aligned. As another example, the electronic device (101) may display text on the flexible display (2200) requesting a change in the position of the electronic device (101).

[0221] According to one embodiment, when the electronic device (101) is aligned with the power supply device by user operation, the electronic device (101) may display a user interface indicating that it is charging on the flexible display (220). For example, the electronic device (101) may display an icon (e.g., a lightning bolt shape) or display the text “Charging” on the flexible display (220).

[0222] FIG. 20a is a drawing illustrating charging guides having various width lengths of a power supply device according to one embodiment.

[0223] Referring to FIG. 20a, a power supply device (601) according to one embodiment may display charging guides (1711, 2012, 2013) having various width lengths based on information about an electronic device (101). In one embodiment, the information about the electronic device (101) may include at least one of the positional relationship between the electronic device (101) and the power supply device (601), the positional relationship between a first part (211) and a second part (212) of the housing (210) of the electronic device (101), the critical power of the electronic device (101), or the first power received by the electronic device (101). For example, the power supply device (601) may display a first charging guide (1711) having a first width length (D1). As another example, the power supply device (601) may display a second charging guide (2012) having a second width (D2). As another example, the power supply device (601) may display a third charging guide (2013) having a third width (D3).

[0224] According to one embodiment, the power supply device (601) may change to display a second charging guide (2012) having a second width (D2) while displaying a first charging guide (1711) having a first width (D1), if the first power received by the electronic device (101) is less than the threshold power. In one embodiment, the power supply device (601) may change to display a third charging guide (2013) having a third width (D3) while displaying a second charging guide having a second width (D2), if the first power received by the electronic device (101) is less than the threshold power.

[0225] FIG. 20b is a drawing for explaining a method of displaying a charging guide according to charging coils that transmit power according to one embodiment.

[0226] Referring to FIG. 20b, a power supply device (601) according to one embodiment may display a charging guide differently depending on the charging coils (630) that transmit power to the electronic device (101). For example, when power is transmitted to the electronic device (101) using the first charging coil (631), the power supply device (601) may have a relatively high power transmission efficiency in a designated direction (e.g., +x direction and -x direction). Accordingly, when power is transmitted using the first charging coil (631), the power supply device (601) may display the first charging guide (2021) further in the designated direction (e.g., +x direction and -x direction). As another example, when power is transmitted to the electronic device (101) using the second charging coil (632), the power supply device (601) may transmit power uniformly in all directions. Therefore, when the power supply device (601) transmits power using the second charging coil (632), it can uniformly display the second charging guide (2022).

[0227] FIG. 21 is a drawing showing a position guide for an electronic device using a power supply device according to one embodiment.

[0228] Referring to FIG. 21, a power supply device (601) according to one embodiment may display a first charging guide (1711) to an electronic device (101). In one embodiment, the electronic device (101) may compare a threshold power stored in memory (130) with a first power received from the power supply device (601) and may request the power supply device (601) to change the first charging guide (1711). In one embodiment, the power supply device (601) may display a second charging guide (2101) outside the electronic device (101) in response to receiving the request. The second charging guide (2101) may be displayed outside the electronic device (101) using an LED, and the second charging guide (2101) may have a shape that requests the electronic device (101) to change its position. For example, the second charging guide (2101) may be in the shape of an arrow pointing toward the power supply (601).

[0229] According to one embodiment, the power supply device (601) can display a third charging guide (2013) having a third width (D3) after displaying a second charging guide (2101).

[0230] FIG. 22 is a drawing showing a foldable electronic device according to another embodiment.

[0231] Referring to FIG. 22, the foldable electronic device (2200) may include a first housing (2210), a second housing (2220), a connecting member (2230), a flexible display (2240), and a metal frame (2250).

[0232] According to one embodiment, the first housing (2210) and the second housing (2220) may be rotatably connected by a connecting member (2230). For example, the connecting member (2230) may be a hinge structure including a hinge driving part.

[0233] According to one embodiment, the flexible display (2240) forms the front surface of the foldable electronic device (2200) and may be disposed across the first housing (2210) and the second housing (2220). In one example, when the first housing (2210) and the second housing (2220) face each other by rotating by a connecting member (2230), at least a portion of the flexible display (2240) may be bent.

[0234] According to one embodiment, the rear surface of the first housing (2210) may be formed as a first rear cover (2211), and the rear surface of the second housing (2220) may be formed as a second rear cover (2221). In one example, the first rear cover (2211) and the second rear cover (2221) can protect the first housing (2210) and the second housing (2220) from external impact.

[0235] The wireless charging described in FIGS. 1 to 21 of this document may also be applied to the foldable electronic device (2200) illustrated in FIG. 22.

[0236] An electronic device according to various embodiments of the present disclosure may include a housing forming the exterior of the electronic device, a wireless charging circuit, and at least one processor electrically connected to the wireless charging circuit, wherein the housing may include a first part and a second part, and the position relative to the first part may change depending on the state of the electronic device, and the at least one processor may control the wireless charging circuit to receive a first power from a power supply device through a first magnetic field having a first center, and may control the wireless charging circuit to receive the first power from the power supply device through a second magnetic field having a second center distinguished from the first center based on the positional relationship between the first part of the housing and the first part of the housing when the relative positions of the power supply device and the first part of the housing are fixed.

[0237] An electronic device according to one embodiment may further include a plurality of wireless charging coils disposed within the housing, and the first magnetic field having the first center may be formed by the first wireless charging coil among the plurality of wireless charging coils, and the second magnetic field having the second center may be formed by the second wireless charging coil among the plurality of wireless charging coils.

[0238] An electronic device according to one embodiment may further include a memory, and the at least one processor may determine a wireless charging coil among the plurality of wireless charging coils that receives power from the power supply device in correspondence with the angle formed by the first part and the second part of the housing, and may store information about the determined wireless charging coil in the memory.

[0239] An electronic device according to one embodiment may further include a first wireless charging coil disposed within the housing, a switch circuit, and a lumped element electrically connected to the switch circuit, and the first magnetic field having the first center may be formed by the first wireless charging coil, and the second magnetic field having the second center may be formed by the first wireless charging coil and the lumped element as the at least one processor controls the switch circuit to electrically connect the lumped element and the first wireless charging coil.

[0240] According to one embodiment, the housing may further include a hinge structure connecting the first part and the second part, and the second part of the housing may be rotatable about a first axis with respect to the first part.

[0241] According to one embodiment, the positional relationship between the first part and the second part of the housing may include the angle formed by the first part and the second part.

[0242] According to one embodiment, the at least one processor can determine whether the first power is greater than a threshold power for charging the electronic device, and if the first power is less than the threshold power, it can request the power supply to transmit a second power greater than the threshold power.

[0243] An electronic device according to one embodiment may further include a flexible display disposed on the front of the electronic device, and the at least one processor may receive feedback that the power supply device has responded to the request and information regarding the location of the power supply device, and may display a user interface on the flexible display requesting to change the location of the electronic device so that the first power becomes greater than the threshold power based on the received feedback and the information.

[0244] According to one embodiment, the user interface may include text or an indicator indicating the direction of movement of the electronic device.

[0245] An electronic device according to one embodiment may further include at least one sensor, and the at least one processor may use the at least one sensor to identify the angle formed by the first part and the second part of the housing.

[0246] An electronic device according to one embodiment may further include a wireless communication circuit electrically connected to the at least one processor, and the at least one processor may transmit information regarding the angle formed by the identified first part and the second part to the power supply device using the wireless communication circuit.

[0247] A method of operation of an electronic device comprising a housing including a first part and a second part connected to the first part according to various embodiments of the present disclosure may include the operation of controlling a wireless charging circuit of the electronic device to receive a first power from a power supply device based on a first magnetic field having a first center, and the operation of controlling the wireless charging circuit to receive the first power from the power supply device based on a second magnetic field having a second center distinguished from the first center, based on the positional relationship between the first part of the housing and the first part of the housing when the relative positions of the power supply device and the first part of the housing are fixed.

[0248] According to one embodiment, the first magnetic field having the first center may be formed by the first wireless charging coil among the plurality of wireless charging coils of the electronic device, and the second magnetic field having the second center may be formed by the second wireless charging coil among the plurality of wireless charging coils.

[0249] According to one embodiment, the first magnetic field having the first center may be formed by the first wireless charging coil of the electronic device, and the second magnetic field having the second center may be formed by the first wireless charging coil and the lumped element as at least one processor of the electronic device controls a switch circuit to electrically connect the lumped element and the first wireless charging coil.

[0250] A method of operating an electronic device according to one embodiment may further include the operation of determining whether the first power is greater than a threshold power for charging the electronic device, and the operation of requesting the power supply device to transmit a second power greater than the threshold power when the first power is less than the threshold power.

[0251] A method of operating an electronic device according to one embodiment may further include receiving feedback that the power supply device has responded to the request and information regarding the location of the power supply device, and displaying a user interface on a flexible display requesting that the location of the electronic device be changed so that the first power becomes greater than the threshold power based on the received feedback and the information.

[0252] According to one embodiment, the user interface may include text or an indicator indicating the direction of movement of the electronic device.

[0253] According to one embodiment, the positional relationship between the first part and the second part of the housing may include the angle formed by the first part and the second part.

[0254] A method of operation of an electronic device according to one embodiment may further include an operation of identifying the angle formed by the first part and the second part of the housing using at least one sensor.

[0255] A method of operation of an electronic device according to one embodiment may further include the operation of transmitting information about the angle formed by the identified first part and the second part to the power supply device.

Claims

Claim 1 In an electronic device, a housing forming the exterior of the electronic device, wherein the housing comprises a first portion and a second portion, and the second portion is connected to the first portion so as to be rotatable with respect to the first portion; a plurality of wireless charging coils disposed within the housing; a wireless charging circuit; and at least one processor electrically connected to the wireless charging circuit. The electronic device includes a memory for storing instructions, wherein when the instructions are executed individually or collectively by the at least one processor, the electronic device: controls the wireless charging circuit to receive a first power from a power supply device through a first wireless charging coil among the plurality of wireless charging coils, and when the relative position of the power supply device and the first part of the housing is fixed, controls the wireless charging circuit to receive the first power from the power supply device through a second wireless charging coil corresponding to the angle formed by the first part of the housing and the second part of the plurality of wireless charging coils, and stores information about the second wireless charging coil corresponding to the angle in the memory, wherein the first wireless charging coil among the plurality of wireless charging coils forms a first magnetic field having a first center, and the second wireless charging coil among the plurality of wireless charging coils forms a second magnetic field having a second center. Claim 2 delete Claim 3 delete Claim 4 The electronic device of claim 1 further comprises: a switch circuit; and a lumped element electrically connected to the switch circuit, wherein, when the instructions are executed individually or collectively by the at least one processor, the electronic device: controls the switch circuit to electrically connect the lumped element to the first wireless charging coil and to form a third magnetic field having a third center using the first wireless charging coil and the lumped element. Claim 5 An electronic device according to claim 1, wherein the housing further comprises a hinge structure connecting the first part and the second part, and the second part of the housing is rotatable about a first axis with respect to the first part. Claim 6 delete Claim 7 The electronic device of claim 1, wherein, when the instructions are executed individually or collectively by the at least one processor, the electronic device: determines whether the first power is greater than a threshold power for charging the electronic device, and if the first power is less than the threshold power, transmits a request to the power supply to transmit a second power greater than the threshold power. Claim 8 The electronic device according to claim 7 further comprises a flexible display disposed on the front of the electronic device, wherein, when the instructions are executed individually or collectively by the at least one processor, the electronic device: receives feedback that the power supply has responded to the request and information regarding the location of the power supply, and displays on the flexible display a user interface requesting to change the location of the electronic device so that the first power becomes greater than the threshold power based on the received feedback and the information regarding the location, and the user interface includes text or an indicator indicating the direction of the positional movement of the electronic device. Claim 9 delete Claim 10 An electronic device according to claim 1, further comprising: at least one sensor; and a wireless communication circuit electrically connected to the at least one processor, wherein, when the instructions are executed individually or collectively by the at least one processor, the electronic device: identifies the angle formed by the first part and the second part of the housing using the at least one sensor, and transmits information about the angle formed by the first part and the second part using the wireless communication circuit to the power supply device. Claim 11 delete Claim 12 A method performed by an electronic device, wherein the electronic device comprises a housing including a first part and a second part connected to the first part, and the method comprises: an operation of controlling a wireless charging circuit of the electronic device to receive a first power from a power supply device through a first wireless charging coil among a plurality of wireless charging coils of the electronic device; an operation of controlling the wireless charging circuit to receive the first power from the power supply device through a second wireless charging coil corresponding to an angle formed by the first part of the housing and the second part among the plurality of wireless charging coils when the relative position of the power supply device and the first part of the housing is fixed; and an operation of storing information about the second wireless charging coil corresponding to the angle in a memory of the electronic device, wherein among the plurality of wireless charging coils, the first wireless charging coil forms a first magnetic field having a first center, and among the plurality of wireless charging coils, the second wireless charging coil forms a second magnetic field having a second center. Claim 13 delete Claim 14 delete Claim 15 delete Claim 16 delete Claim 17 delete Claim 18 delete Claim 19 delete Claim 20 delete

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