Electronic device for receiving power from external power supply device in wired manner, and wirelessly supplying power to external power reception device

Abstract

This electronic device comprises: a battery; a connector including a power source terminal and a data terminal; a first power conversion circuit for converting a voltage value of received power; a first communication circuit for communicating with a power supply device; a coil for wireless power supply; an AC-DC converter; a first switching circuit; and a second switching circuit, and, on the basis that it is identified through the first communication circuit that the power supply device has a function (PPS) for adjusting, in stages, the voltage value of power to be output to the electronic device, can control the first switching circuit such that the power source terminal is connected to a first power conversion terminal and a second converter terminal is not connected to the first power conversion terminal, and can control the second switching circuit such that the power source terminal is connected to the second converter terminal, and, on the basis that it is identified through the first communication circuit that the power supply device does not have the function, can control the first switching circuit such that the power source terminal and the second converter terminal are connected to the first power conversion terminal, and can control the second switching circuit such that the power source terminal is not connected to the second converter terminal through the second switching circuit.

Description

An electronic device that receives power from an external power supply via a wire and supplies power to an external power receiving device wirelessly.

[0001] The present disclosure relates to an electronic device configured to receive power via a wire from an external power supply device and to supply power wirelessly to an external power receiving device.

[0002] An electronic device (e.g., a smartphone, a tablet PC) may be equipped with a wired interface (e.g., a USB (universal serial bus) connector) for wired connection with a power supply (e.g., a TA (travel adapter)). The electronic device may receive power from the power supply (e.g., a TA (travel adapter)) via the wired interface and communicate with the power supply to receive power. The electronic device may charge a battery mounted on the electronic device using the power received from the power supply. The electronic device may be configured to supply power from the battery and / or power received from the power supply to the electronic device's system (in other words, a load circuit). The system is a collective term for electronic components mounted on the electronic device that operate using the supplied power, and may include, for example, a display, a processor, a speaker, a communication circuit, and memory. The system may perform a given operation using the supplied power.

[0003] The electronic device may be equipped with a wireless interface (e.g., an inverter and a coil) for wirelessly connecting with another electronic device (a power receiving device). The electronic device may be configured to supply power from a battery and / or power received from a power supply device to the power receiving device via the wireless interface and to perform communication for power supply.

[0004] The information described above is provided as related art for the purpose of aiding understanding of the present disclosure. No claim or determination is made as to whether any of the foregoing may be applied as prior art related to the present disclosure.

[0005] A power supply unit can supply a large amount of power (e.g., 25W or more) to an electronic device. According to various embodiments of the present disclosure, the electronic device can receive the maximum power that the power supply unit can supply. The electronic device can use the power received from the power supply unit (e.g., 25W or more) to charge a battery and wirelessly supply power to another external electronic device. The technical problems to be solved by the present disclosure are not limited to those mentioned above, and other unmentioned technical problems will be clearly understood by those skilled in the art from the description below.

[0006] According to one embodiment, an electronic device (e.g., the electronic device (300) of FIG. 3) comprises: a battery; a connector including a power terminal for receiving power from an external power supply and a data terminal for communicating with said power supply; a first power conversion circuit including a first power conversion terminal connected to said power terminal and a second power conversion terminal connected to said battery, configured to convert the voltage value of the power received from said power supply through said first power conversion terminal and output the power to said battery through said second power conversion terminal; a first communication circuit configured to communicate with said power supply through said data terminal; a coil for wirelessly supplying power to an external power receiving device; an AC-DC converter including a first converter terminal connected to said coil and a second converter terminal connected to said first power conversion circuit, configured to convert the current of the power received from said second converter terminal from DC (direct current) to AC (alternative current) and output it to said first converter terminal; and a first switching circuit configured to connect said power terminal and said second converter terminal to said first power conversion terminal. It includes a second switching circuit configured to connect the power terminal to the second converter terminal; a memory for storing instructions; and at least one processor.When the above instruction is executed individually or collectively by the at least one processor, the electronic device may control the first switching circuit such that the power terminal is connected to the first power conversion terminal and the second converter terminal is not connected to the first power conversion terminal, based on the fact that it is confirmed through the first communication circuit that the power supply has a function (PPS) for stepwise adjusting the voltage value of the power to be output to the electronic device, and may control the second switching circuit such that the power terminal is connected to the second converter terminal. When the above instruction is executed by the processor, the electronic device may control the first switching circuit such that the power terminal and the second converter terminal are connected to the first power conversion terminal, based on the fact that it is confirmed through the first communication circuit that the power supply does not have the said function, and may control the second switching circuit such that the power terminal is not connected to the second converter terminal through the second switching circuit.

[0007] According to one embodiment, a recording medium is provided for storing the instruction that is readable by at least one processor in an electronic device.

[0008] According to one embodiment, a method for operating an electronic device is provided. The electronic device comprises: a battery; a connector including a power terminal for receiving power from an external power supply device and a data terminal for communicating with the power supply device; a first power conversion circuit including a first power conversion terminal connected to the power terminal and a second power conversion terminal connected to the battery, configured to convert the voltage value of the power received from the power supply device through the first power conversion terminal and output the power to the battery through the second power conversion terminal; a first communication circuit configured to communicate with the power supply device through the data terminal; a coil for wirelessly supplying power to an external power receiving device; an AC-DC converter including a first converter terminal connected to the coil and a second converter terminal connected to the first power conversion circuit, configured to convert the current of the power received from the second converter terminal from DC (direct current) to AC (alternative current) and output it to the first converter terminal; and a first switching circuit configured to connect the power terminal and the second converter terminal to the first power conversion terminal. and includes a second switching circuit configured to connect the power terminal to the second converter terminal.The above method may include: a first operation of controlling the first switching circuit such that the power terminal is connected to the first power conversion terminal and the second converter terminal is not connected to the first power conversion terminal, and controlling the second switching circuit such that the power terminal is connected to the second converter terminal, based on confirmation through the first communication circuit that the power supply device has a function of gradually adjusting the voltage value of the power to be output to the electronic device; and a second operation of controlling the first switching circuit such that the power terminal and the second converter terminal are connected to the first power conversion terminal, based on confirmation through the first communication circuit that the power supply device does not have the said function, and controlling the second switching circuit such that the power terminal is not connected to the second converter terminal through the second switching circuit.

[0009] According to an embodiment of the present disclosure, an electronic device can charge a battery using power (e.g., 25W or more) received from a power supply and wirelessly supply power to another external electronic device. In addition, various effects that are directly or indirectly understood from this document may be provided.

[0010] FIG. 1 is a block diagram of an electronic device in a network environment according to various embodiments.

[0011] FIG. 2 is a block diagram of a power management module and a battery according to various embodiments.

[0012] FIG. 3 is a block diagram of an electronic device configured to receive and transmit power according to one embodiment.

[0013] FIG. 4 illustrates the configuration of a second switching circuit according to one embodiment.

[0014] FIGS. 5A and 5B are drawings for explaining power distribution using the switch of FIG. 3 according to one embodiment.

[0015] FIG. 6 is a block diagram of an electronic device configured to receive and transmit power according to one embodiment.

[0016] FIGS. 7a and 7b are drawings for explaining power distribution using the switch of FIG. 6 according to one embodiment.

[0017] FIG. 8 is a flowchart illustrating a power distribution operation using a PPS-supported or non-PPS-supported device according to one embodiment.

[0018] FIG. 9 is a flowchart illustrating operations performed in an electronic device while providing power from a power supply device supporting PPS to a power receiving device, according to one embodiment.

[0019] FIG. 10 is a flowchart illustrating operations performed in an electronic device while providing power from a power supply device supporting PPS to a power receiving device, according to one embodiment.

[0020] Hereinafter, embodiments of the present disclosure are described in detail with reference to the drawings so that those skilled in the art can easily practice them. However, the present disclosure may be embodied in various different forms and is not limited to the embodiments described herein. In relation to the description of the drawings, the same or similar reference numerals may be used for identical or similar components. Furthermore, in the drawings and related descriptions, descriptions of well-known functions and configurations may be omitted for clarity and brevity.

[0021] 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 may communicate with at least one of 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 the 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)).

[0022] 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 less 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.

[0023] 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 model is executed, 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.

[0024] 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).

[0025] 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).

[0026] 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).

[0027] 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.

[0028] 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.

[0029] 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).

[0030] 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.

[0031] 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.

[0032] 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).

[0033] The haptic module (179) can convert an electrical signal into a mechanical stimulus (e.g., vibration or movement) or an electrical stimulus that can be perceived by the user 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.

[0034] 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.

[0035] 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).

[0036] 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.

[0037] 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 (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).

[0038] 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 beam-forming, 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) may 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.

[0039] An antenna module (197) can transmit a signal or power to or from an external source (e.g., an external electronic device). 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).

[0040] 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.

[0041] 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.

[0042] 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.

[0043] FIG. 2 is a block diagram (200) of a power management module (188) and a battery (189) according to various embodiments. Referring to FIG. 2, the power management module (188) may include a charging circuit (210), a power regulator (220), or a power gauge (230). The charging circuit (210) may charge the battery (189) using power supplied from an external power source for the electronic device (101). According to one embodiment, the charging circuit (210) may select a charging method (e.g., normal charging or fast charging) based on at least some of the type of external power source (e.g., power adapter, USB, or wireless charging), the amount of power that can be supplied from the external power source (e.g., about 20 watts or more), or the attributes of the battery (189), and may charge the battery (189) using the selected charging method. The external power source can be wired to the electronic device (101), for example, through a connection terminal (178), or wirelessly through an antenna module (197).

[0044] The power regulator (220) can generate multiple powers having different voltage or different current levels by adjusting the voltage level or current level of the power supplied from, for example, an external power source or a battery (189). The power regulator (220) can adjust the power of the external power source or battery (189) to a voltage or current level suitable for each of the components included in the electronic device (101). According to one embodiment, the power regulator (220) may be implemented in the form of a low drop-out (LDO) regulator or a switching regulator. The power gauge (230) can measure usage status information for the battery (189) (e.g., capacity of the battery (189), number of charge / discharge cycles, voltage, or temperature).

[0045] The power management module (188) can determine charge state information related to the charging of the battery (189) (e.g., lifespan, overvoltage, undervoltage, overcurrent, overcharge, overdischarge, overheating, short circuit, or swelling) based at least part of the measured usage state information, using, for example, a charging circuit (210), a voltage regulator (220), or a power gauge (230). The power management module (188) can determine whether the battery (189) is normal or abnormal based at least part of the determined charge state information. If the state of the battery (189) is determined to be abnormal, the power management module (188) can adjust the charging of the battery (189) (e.g., reducing the charging current or voltage, or stopping the charging). According to one embodiment, at least some of the functions of the power management module (188) may be performed by an external control device (e.g., a processor (120)).

[0046] According to one embodiment, the battery (189) may include a battery protection circuit module (PCM) (240). The battery protection circuit (240) may perform one or more of various functions (e.g., a pre-shutdown function) to prevent performance degradation or burnout of the battery (189). The battery protection circuit (240) may additionally or substantially be configured as at least part of a battery management system (BMS) capable of performing various functions including cell balancing, measuring battery capacity, measuring charge / discharge cycles, measuring temperature, or measuring voltage.

[0047] According to one embodiment, at least a portion of the usage status information or charge status information of the battery (189) may be measured using a corresponding sensor (e.g., a temperature sensor) among the sensor modules (276), a power gauge (230), or a power management module (188). According to one embodiment, the corresponding sensor (e.g., a temperature sensor) among the sensor modules (176) may be included as part of the battery protection circuit (140) or may be placed near the battery (189) as a separate device.

[0048] In the following documents, the term 'connection' refers not only to a direct connection between components but also to an electrical connection where other components (e.g., resistors, inductors, etc.) are present between components.

[0049] In the following documents, the side of the display (e.g., flexible display) that is visually exposed to the user may be referred to as the front of the electronic device (101). The side opposite the front may be referred to as the rear of the electronic device (101). The side surrounding the space between the front and the rear may be referred to as the side of the electronic device (101). The term “state” may refer to the structural form, posture, shape, or form of the display, slider, or housing constituting the electronic device (101).

[0050] A bar-type housing structure may be applied to an electronic device (e.g., smartphone, tablet PC) (101). For example, the bar-type housing structure may include a plate (or front cover) forming the front of the electronic device (101), a plate (or rear cover) forming the rear of the electronic device (101), and a bezel structure (or side cover) forming the sides surrounding the front and rear. A display area of ​​the display may be exposed through the front. According to one embodiment, the electronic device (101) may include a coil; an AC-DC converter configured to convert an input current from DC (direct current) to AC (alternative current) (or vice versa) and output it; a connector; at least one battery; and a power conversion circuit (in other words, a charging circuit, or a DC-DC converter) configured to charge the battery and supply power to a load (system) of the electronic device (101) using power received from an external power supply device through the coil and / or connector. According to one embodiment, the electronic device (101) may be configured to divide power received from a power supply device through a connector into two. The electronic device (101) may be configured to output a portion of the received power to a power conversion circuit and another portion to a coil through an AC-DC converter. Accordingly, while the battery is charged and power is supplied to the load in the electronic device (101), an external power receiving device can wirelessly receive power from the electronic device (101) through the coil.

[0051] A foldable housing structure may be applied to an electronic device (e.g., smartphone, tablet PC, laptop PC) (101). For example, the electronic device (101) may have a foldable housing structure that is divided into two housings around a folding axis. The first housing may include a first front cover forming a part of the front (first front), a second rear cover forming a part of the rear (or, second rear), and a first side bezel structure forming a part of the side (or, first side). The second housing may include a second front cover forming another part of the front (or, second front), a second rear cover forming another part of the rear (or, second rear), and a second side bezel structure forming another part of the side (or, second side). A part of a display (e.g., a flexible display) may be placed in the first housing and another part may be placed in the second housing. A first display area of ​​the display may be exposed through the first front in the first housing. A second display area of ​​the display may be exposed through a second front surface in a second housing. The foldable housing structure may be implemented in an in-folding manner where the first display area and the second display area face each other when the electronic device (101) is in a folded state. Alternatively, the foldable housing structure may be implemented in an out-folding manner where the first display area and the second display area face each other in opposite directions when the electronic device (101) is in a folded state. The electronic device (101) may further include a sub-display. For example, a flexible display, which is the main display, may be exposed through the entire front surface of the electronic device (101), and a sub-display may be placed in a first housing or a second housing and exposed through the rear surface (first rear surface or second rear surface) of the said housing. According to one embodiment, the electronic device (101) may include a plurality of batteries.For example, a first battery may be located in a first housing and a second battery may be located in a second housing. A power conversion circuit may be located in the first housing together with the first battery. The second battery located in the second housing may be connected to the power conversion circuit located in the first housing through connecting wiring (e.g., a PCB (printed circuit board)).

[0052] A sliderable (or rollable) housing structure may be applied to an electronic device (e.g., smartphone, tablet PC, laptop PC) (101). The electronic device (101) may include a sliderable housing comprising a housing (or a first housing) and a slider (or a second housing), a rail structure (e.g., a rail structure formed by a gear coupling between a rack gear and a pinion gear) that allows the slider to be retracted into the housing and the slider to be withdrawn from the housing, and a rollable display (e.g., a flexible display). The slider may be divided into a portion that can be retracted into the housing (hereinafter referred to as the retracted portion) and a portion that remains exposed to the outside. When the retracted portion of the slider is in a slide-out state (in other words, first state, open state, extended state, roll-out state) in which it is fully withdrawn from the housing, the entire display (or most of the display area) may be exposed to the outside through the front. As the inlet portion of the slider is retracted into the housing, the display can also be retracted into the housing. The display can be divided into a portion that remains exposed to the outside (e.g., first display area, first section) and a portion that can enter the housing (e.g., second display area, second section, bendable section). When the state transitions to a slide-in state (or second state, closed state, reduced state, roll-in state) in which the entire inlet portion of the slider is retracted into the housing, the entire second display area of ​​the display can be retracted into the housing. When transitioning from a slide-out state to a slide-in state, a part of the display (e.g., second display area) may not be retracted into the housing but may be moved and positioned towards the rear via the side.As exemplified above, the electronic device (101) may have a sliding structure in which a portion of the display is retracted into the housing, or a sliding structure in which a portion of the display is moved from the front to the rear. In the display, only the portion exposed through the front may be determined as an active display area (hereinafter, active area) to display visual information. The portion retracted into the housing or moved to the rear may be determined as an inactive area in which visual information is not displayed. According to one embodiment, the electronic device (101) may include a connector; at least one battery; and a charging circuit (in other words, a power conversion circuit) configured to charge the battery using power received from an external power supply device through the connector and to supply power to the system (e.g., a speaker) of the electronic device (101). According to one embodiment, the electronic device (101) may include a plurality of batteries. For example, a first battery may be located in a first housing and a second battery may be located in a second housing. The power conversion circuit may be located in the first housing together with the first battery. The second battery located in the second housing can be connected to the charging circuit located in the first housing via connecting wiring (e.g., a PCB (printed circuit board)).

[0053] FIG. 3 is a block diagram of an electronic device (300) configured to receive and transmit power according to one embodiment. Referring to FIG. 3, the electronic device (300) may be connected to an external electronic device (e.g., a first external electronic device (301)) via a wired interface (e.g., a connector). The electronic device (300) may be connected to an external electronic device (e.g., a second external electronic device (302)) via a wireless interface (e.g., a coil). The electronic device (300) may include a first battery (311), a connector (320), a coil (325), a communication circuit (330), a power conversion circuit (340), an AC-DC converter (350), a switching circuit (360), and a system (370). The system (or, in other words, a load circuit) (370) is a collective term for electronic components mounted on the electronic device (300) and may include, for example, a memory (388) and a processor (399). The system (370) can perform a given operation using the supplied power.

[0054] The electronic device (300) can communicate with the first external electronic device (301) through the connector (320) and receive power from the first external electronic device (301) or supply power to the first external electronic device (301). The connector (320) (e.g., the connection terminal (178) in FIG. 1) may include a power terminal (321) for receiving power from the first external electronic device (301) or supplying power to the first external electronic device (301), and a data terminal (322) for data communication with the first external electronic device (301). For example, the connector (320) may include a socket according to USB (universal serial bus) Type-C. The socket of the connector (320) may be coupled with the plug of the cable (304). Among the pins of the USB Type-C socket, the VBUS pin may be used as a power terminal (321) and the CC (configuration channel) pin and / or differential signal pin (DP(D+), DN(D-)) may be used as a data terminal (322).

[0055] The electronic device (300) can receive power from the second external electronic device (302) or supply power to the second external electronic device (302) through the coil (325). The coil (325) may be a spiral-type coil wound multiple times in a clockwise or counterclockwise direction. For example, the coil (325) may be positioned adjacent to the rear of the electronic device (300). When the rear surface of an electronic device (e.g., a smartphone) (300) faces the rear surface of a second external electronic device (e.g., another smartphone or wireless earphone charging case (or cradle)) (302), the coil (325) may be aligned with the coil (302a) of the second external electronic device (302). The electronic device (300) may receive power from the second external electronic device (302) or supply power to the second external electronic device (302) through the electrical coupling of the coil (325) and the coil (302a). The coil (325) may resonate at the same frequency as the frequency at which the coil (302a) of the second external electronic device (302) resonates. For example, the electronic device (300) may further include a resonance circuit to cause the coil (325) to resonate at a specific frequency (e.g., a frequency specified in the WPC (wireless power consortium) standard). The coil (325) can be used as an antenna for data communication (e.g., in-band communication) in addition to transmitting and receiving power.

[0056] The communication circuit (330) may include a first communication circuit (331) for communicating with a first external electronic device (301) and a second communication circuit (332) for communicating with a second external electronic device (302).

[0057] A first communication circuit (e.g., a USB controller) (331) is connected to a data terminal (322) and can identify the type of the first external electronic device (301) connected to the electronic device (300) through the connector (320) based on data received from the first external electronic device (301) through the data terminal (211). The first communication circuit (331) can transmit identification information indicating the type of the first external electronic device (301) to a processor (399). Based on the identification information, the processor (399) can perform an operation to negotiate between the source supplying power and the sink receiving power between the first external electronic device (301) and the electronic device (300) by performing communication according to a protocol designated for power delivery (PD) communication with the external device through the communication circuit (350). For example, the first external electronic device (301) may be recognized as a power supply device (e.g., a TA (travel adapter)), thereby determining the first external electronic device (301) as the source and the electronic device (300) as the sink. After such negotiation,

[0058] The processor (399) can perform the operation of negotiating the voltage value of power to be supplied from the first external electronic device (301) to the electronic device (300) by communicating with the first external electronic device (301) through the first communication circuit (331) according to a PD communication protocol (e.g., PDO (power data objects) or PPS (programmable power supply)). Here, PPS is defined as a function that stepwise adjusts (boosts or steps down) the voltage value of power to be supplied to the electronic device (300) in specified units (e.g., tens of mV), and may also be referred to as APDO (augmented PDO). The processor (399) can control the first communication circuit (331) to transmit a message to the first external electronic device (301) requesting the transmission of power having the voltage value determined by the negotiation result.

[0059] The processor (399) can receive power specification information from the first external electronic device (301) through the first communication circuit (331). Based on the power specification information, the processor (399) can determine that the first external electronic device (301) is a device that supports PPS. For example, the processor (399) can identify that the first external electronic device (301) is a travel adapter (TA) that supports PDO or PPS based on the fact that the power specification information includes information indicating a voltage range (e.g., 3.3 to 11 V, 3.3 to 16 V, or 3.3 to 21 V) that the first external electronic device (301) can supply. Meanwhile, the power specification information may also include a rated current value. For example, if the maximum output of the first external electronic device (301) is approximately 45W, information indicating “3.3~11V / 4.05A, 3.3~16V / 2.8A, and 3.3~21V / 2.1A” as rated current values ​​corresponding to each voltage range may be included in the received power specification information. If the first external electronic device (301) is a device that supports a maximum output of approximately 60W, information indicating “3.3~12V / 5A” may be included in the power specification information. The rated current value may mean the maximum current value that the first external electronic device (301) can output. For example, if the current value of the power supplied from the first external electronic device (301) to the electronic device (300) is greater than or equal to the rated current value for a certain period of time, the first external electronic device (301) may stop supplying power. The received information may include, for example, a list of PDOs (power data objects) as information indicating a fixed voltage value and a corresponding rated current value. For example, the received PDO list may include information indicating the power that can be supplied as “15W (5V*3A), 27W (9V*3A), 45W (15V*3A), 60W (20V*3A), or 65W (20V*3.25A)”.The processor (399) can identify the first external electronic device (301) as a PPS non-supporting device based on the fact that the information received from the first external electronic device (301) includes only a PDO list without PPS information.

[0060] The second communication circuit (332) is connected to the coil (325) and can perform data communication with the second external electronic device (302) through the coil (325). For example, the second communication circuit (332) can receive data from the processor (399) and transmit the received data to the second external electronic device (302) by carrying it on the power supplied to the second external electronic device (302). A method of carrying data on the power may be, for example, a technique of modulating the amplitude and / or frequency of the power signal output from the coil (325) to the second external electronic device (302). The second communication circuit (332) can receive data from the second external electronic device (302) through the coil (325). For example, the second communication circuit (332) can obtain data transmitted by the second external electronic device (302) to the electronic device (300) through its coil (302a) by demodulating a power signal output from the coil (325) of the electronic device (300) to the coil (302a) of the second external electronic device (302). The second communication circuit (332) can transmit the data obtained from the power signal to the processor (399). According to one embodiment, the second communication circuit (332) may include a short-range wireless communication circuit (e.g., a WiFi communication circuit and / or a Bluetooth communication circuit). Accordingly, the second communication circuit (332) can perform wireless communication with the second external electronic device (302) using another medium, namely the antenna of the short-range wireless communication circuit, without passing through the coil (325).

[0061] A power conversion circuit (340) (e.g., a charging circuit (210) of FIG. 2) may be connected to a power terminal (321) and connected to a coil (325) via an AC-DC converter (350). When the electronic device (300) is set as a sink, the power conversion circuit (340) may be configured to supply power received from a first external electronic device (302) via the power terminal (321) (or received from a second external electronic device (302) via the coil (325)) to a first battery (311) and a system (370). When the electronic device (300) is set as a source, it may be configured to supply power received from the first battery (311) to the first external electronic device (302) via the power terminal (321) or to the second external electronic device (302) via the coil (325).

[0062] The power conversion circuit (340) may include a first power conversion circuit (in other words, a switching charging circuit) (341) and a second power conversion circuit (in other words, a direct charging circuit) (342). The second power conversion circuit (342) may be used as a charging circuit for charging the first battery (311) when the electronic device (300) is set as a sink and the external electronic device (e.g., the first external electronic device (301) or the second external electronic device (302)) set as a source is a PPS-supported device.

[0063] The first power conversion circuit (341) can convert the voltage and / or current values ​​of power input from one of the two terminals (T1, T2) and output them to the other terminal. For example, the first power conversion circuit (341) can convert the voltage and / or current values ​​of power received from an external electronic device (e.g., the first external electronic device (301) or the second external electronic device (302)) through the first power conversion terminal (T1) and output power to the first battery (311) and the system (370) through the second power conversion terminal (T2). For example, the first power conversion circuit (341) can adjust the voltage of the power received through the first power conversion terminal (T1) to have a specified voltage value. The first power conversion circuit (341) can output power having a specified voltage value to the battery (301) and the system (370) through the second power conversion terminal (T2). The specified voltage value may be, for example, the potential difference between the negative and positive electrodes of the first battery (311) when the first battery (311) is fully charged (e.g., 4.5V).

[0064] The output voltage output from the first power conversion circuit (341) can be lower or higher than the input voltage input to the first power conversion circuit (341). That is, the first power conversion circuit (341) can operate as a buck converter that lowers the output voltage relative to the input voltage and / or as a boost converter that raises the output voltage relative to the input voltage.

[0065] As an example, the first power conversion circuit (341) may include a plurality of switches (e.g., metal oxide semiconductor field effect transistors (MOSFETs)), Sa1 and Sa2, and an inductor (L). One end of switch Sa1 (e.g., drain) may be configured to be connected to the first power conversion terminal (T1), and the other end of switch Sa1 (e.g., source) may be connected to one end of switch Sa2 (e.g., drain) and one end of the inductor (L). The other end of switch Sa2 (e.g., source) may be connected to the ground of the electronic device (300), and the other end of the inductor (L) may be configured to be connected to the second power conversion terminal (T2). The processor (399) can set switch Sa1 to a closed state (in other words, a turn-on state) and switch Sa2 to an open state (in other words, a turn-off state (hereinafter, the first switching state). When in the first switching state, electrical energy (power) flowing into the first power conversion circuit (341) through the first power conversion terminal (T1) can pass through the inductor (L) via Sa1 and be output to the second power conversion terminal (T2). Additionally, when in the first switching state, electrical energy is accumulated in the inductor (L), and accordingly, the level of current flowing from the inductor (L) to the second power conversion terminal (T2) can gradually rise. The processor (399) can set switch Sa1 to an open state and switch Sa2 to a closed state (hereinafter, the second switching state). When in the second switching state, electrical energy accumulated in the inductor (L) can be output to the second power conversion terminal (T2). That is, electric As energy is discharged toward the second power conversion terminal (T2), the level of current flowing from the inductor (L) to the second power conversion terminal (T2) can be gradually lowered. The processor (399) can control the first power conversion circuit (341) to periodically alternate between the first switching state and the first switching state.According to this control, the voltage value of the power output from the first power conversion circuit (341) can be adjusted. For example, the processor (399) can adjust the output voltage value by adjusting the ratio of the time the first switching state is maintained (e.g., duty rate or duty cycle) to one alternating cycle of changing from the first switching state to the second switching state.

[0066] The second power conversion circuit (342) may be configured to convert the voltage value of the power input from one of the two terminals (T3, T4) to a fixed voltage conversion ratio (the ratio of the voltage value of the output power to the voltage value of the input power) and output it to the other terminal. The second power conversion circuit (342) may include a circuit configured such that the ratio of the output power to the input power is '1' (e.g., SCVD (switched capacitor voltage divider)). For example, the second power conversion circuit (342) may lower the voltage value of the power flowing into the third power conversion terminal (T3) by 1 / N times and increase the current by N times, and output it to the first battery (311) and the system (370) through the fourth power conversion terminal (T4). The second power conversion circuit (342) can increase the voltage value of the power supplied from the first battery (311) by N times and decrease the current by 1 / N times through the fourth power conversion terminal (T4) and output it to an external electronic device (e.g., the first external electronic device (301) or the second external electronic device (302)) through the third power conversion terminal (T3).

[0067] As an example, the second power conversion circuit (342) may include a plurality of switches (e.g., MOSFETs) Sb1, Sb2, Sb3, and Sb4 and a capacitor (C1). One end of switch Sb1 (e.g., drain) may be configured to be connected to the power conversion terminal (T3), and the other end of switch Sb1 (e.g., source) may be configured to be connected to one end of the capacitor (C1) and one end of switch Sb2 (e.g., drain). The other end of switch Sb2 (e.g., source) may be configured to be connected to the power conversion terminal (T4) and one end of switch Sb3 (e.g., drain). The other end of switch Sb3 (e.g., source) may be connected to the other end of the capacitor (C1) and one end of switch Sb4 (e.g., drain), and the other end of switch Sb4 (e.g., source) may be configured to be connected to the ground of the electronic device (300). While Sb1 and Sb3 are in a closed state and Sb2 and Sb4 are in an open state (hereinafter referred to as the third switching state), power flowing into the power conversion terminal (T3) can pass through Sb1 and be charged into the capacitor (C1). Power can be output from the capacitor (C1) through Sb3 to the power conversion terminal (T4). Accordingly, a current path in which current flows in the order of Sb1, capacitor (C1), Sb3, and power conversion terminal (T4) can be formed on the second power conversion circuit (342). When in the third switching state, voltage distribution is achieved by the capacitor (C1), thereby establishing the relationship "Vout = Vin - Vc = Vin / 2". Here, Vin is the input voltage of the power flowing into the power conversion terminal (T3), Vc is the voltage of the capacitor (C1), and Vout is the voltage output from the power conversion terminal (T4). While Sb1 and Sb3 are in an open state and Sb2 and Sb4 are in a closed state (hereinafter referred to as the fourth switching state), power charged in capacitor (C1) can be output to T4 via Sb2. Accordingly, a current path in which current flows in the order of Sb4, capacitor (C1), Sb2, and T4 can be formed on the second power conversion circuit (342).When in the third switching state, discharge occurs in the capacitor (C1), thereby establishing the relationship “Vout = Vc = Vin / 2”. The processor (399) can control the second power conversion circuit (342) to periodically alternate between the third switching state and the fourth switching state. According to this control, the voltage conversion ratio may be 1 / N. For example, the processor (399) can set the ratio of the time in the third switching state (e.g., duty rate or duty cycle) to one alternating cycle of changing from the third switching state to the fourth switching state to about 50%, and control the second power conversion circuit (342) to periodically alternate between the third switching state and the fourth switching state by matching the switching frequency determining the alternating cycle to the resonant frequency of the second power conversion circuit (342). Accordingly, power with the voltage reduced by half and the current increased by double can be output from the second power conversion circuit (342) to the system (370) and the first battery (311).

[0068] An AC-DC converter (e.g., a full-bridge circuit) (350) may operate as an inverter when supplying power to a second external electronic device (302) and as a rectifier when receiving power from the second external electronic device (302). As one example, the AC-DC converter (350) may include a plurality of switches (e.g., MOSFETs) Sc1, Sc2, Sc3, and Sc4 and converter terminals (T5, T6) for power input and output. The first converter terminal (T5) may be configured to be connected to a coil (325) and the second converter terminal (T6) may be configured to be connected to a power conversion circuit (340). One end of switch Sc1 (e.g., drain) may be connected to T6 and the other end of switch Sc1 (e.g., source) may be connected to T5. One end of Sc2 (e.g., drain) can be configured to be connected to T6 and the other end of Sc2 (e.g., source) can be configured to be connected to T5. One end of Sc3 (e.g., drain) can be configured to be connected to the other end of Sc1 and the other end of Sc3 (e.g., source) can be configured to be connected to ground. One end of Sc4 (e.g., drain) can be configured to be connected to T6 and the other end of Sc4 (e.g., source) can be configured to be connected to ground. The processor (399) can set Sc1 and Sc4 to a closed state and Sc2 and Sc3 to an open state (hereinafter, the fifth switching state). The processor (399) can set Sc1 and Sc4 to an open state and Sc2 and Sc3 to a closed state (hereinafter, the sixth switching state). The processor (399) can cause the AC-DC converter (350) to operate as an inverter by periodically alternating between the fifth switching state and the sixth switching state. The alternating cycle, or switching frequency, can be set within a frequency range of 110 to 148 kHz according to standards for wireless charging (e.g., WPC (wireless power consortium)).The processor (399) can make the AC-DC converter (350) operate as a rectifier by keeping Sc1 and Sc2 in a closed state and Sc3 and Sc4 in an open state.

[0069] The switching circuit (360) may be configured to electrically connect the power terminal (321) or the coil (325) to the power conversion circuit (340). For example, the processor (399) may control the switching circuit (360) so that the power conversion circuit (340) is electrically connected to the power terminal (321) and the electrical connection between the power conversion circuit (340) and the coil (325) is blocked, based on the setting to share power with the first external electronic device (301). The processor (399) may control the switching circuit (360) so that the power conversion circuit (340) is electrically connected to the coil (325) and the electrical connection between the power conversion circuit (340) and the power terminal (321) is blocked, based on the setting to share power with the second external electronic device (302). The aforementioned 'sharing' may mean power transmission or reception.

[0070] According to one embodiment, the switching circuit (360) may include a first switching circuit (361) and a second switching circuit (362). The first switching circuit (361) may be configured to connect a power terminal (321) or a coil (325) to a first power conversion circuit (341). The second switching circuit (362) may be configured to connect a power terminal (321) or a coil (325) to a second power conversion circuit (342). For example, the processor (399) may control the first switching circuit (361) so that the first power conversion circuit (341) is electrically connected to the power terminal (321) and the electrical connection between the first power conversion circuit (341) and the coil (325) is blocked, based on the configuration that the first power conversion circuit (341) is used to share power with the first external electronic device (301). The processor (399) can control the second switching circuit (362) so that the second power conversion circuit (342) is electrically connected to the coil (325) and the electrical connection between the second power conversion circuit (342) and the power terminal (321) is blocked, based on the configuration that the second power conversion circuit (342) is used to share power with the second external electronic device (302).

[0071] According to one embodiment, a first switching circuit (361) may be integrated into a first IC (integrated circuit) (391) together with a first power conversion circuit (341). A second switching circuit (362) may be integrated into a second IC (e.g., an IF PMIC (interface integrated power management integrated circuit)) (392) together with a second power conversion circuit (342).

[0072] According to one embodiment, the switching circuit (360) may be used as a means to divide the power received from the first external electronic device (301) into power to supply to the first battery (311) and the system (370) and power to supply to the second external electronic device (302). If the first external electronic device (301) is a device that supports PPS, the first external electronic device (301) may adjust the voltage value of the power supplied to the second external electronic device (302) through the electronic device (300) based on the control of the electronic device (300). If the first external electronic device (301) is a device that does not support PPS, the electronic device (300) may control the AC-DC converter (350) to adjust the voltage value of the power supplied to the second external electronic device (302) in steps.

[0073] The first switching circuit (361) may be configured to electrically connect or disconnect the power terminal (321) and / or the second converter (T6) to the first power conversion terminal (T1). The second switching circuit (362) may be configured to electrically connect or disconnect the power terminal (321) to the second converter terminal (T6).

[0074] Based on the fact that the first external electronic device (301) is identified as a PPS-supporting device through the first communication circuit (331), the processor (399) can control the first switching circuit (361) so that the power terminal (321) is electrically connected to the first power conversion terminal (T1) and the electrical connection between the second converter terminal (T6) and the first power conversion terminal (T1) is blocked. Additionally, the processor (399) can control the second switching circuit (362) so that the power terminal (321) is electrically connected to the second converter terminal (T6).

[0075] Based on the fact that the first external electronic device (301) is identified as a PPS non-supporting device, the processor (399) can control the first switching circuit (361) so that the power terminal (321) and the second converter terminal (T6) are electrically connected to the first power conversion terminal (T1). Additionally, the processor (399) can control the second switching circuit (362) so that the power terminal (321) is not connected to the second converter terminal (T6) through the second switching circuit (362).

[0076] According to one embodiment, the first switching circuit (361) may include a first switch terminal (S1) connected to a power terminal (321), a second switch terminal (S2) connected to a terminal (T1) of the first power conversion circuit (341), and a third switch terminal (S3) connected to a second converter terminal (T6). The first switching circuit (361) may include a plurality of switches (e.g., MOSFETs) (Sd1, Sd2). It may be configured such that one end (e.g., drain) of the first switch (Sd1) is connected to the first switch terminal (S1) and the other end (e.g., source) of the first switch (Sd1) is connected to the second switch terminal (S2). It may be configured such that one end (e.g., drain) of the second switch (Sd2) is connected to the third switch terminal (S3) and the other end (e.g., source) of the second switch (Sd2) is connected to the second switch terminal (S2). The processor (399) may close the first switch (Sd1) so that the first switch terminal (S1) is electrically connected to the second switch terminal (S2) and open the second switch (Sd2) so that the electrical connection between the second switch terminal (S2) and the third switch terminal (S3) is cut off, based on the fact that the first external electronic device (301) is identified as a PPS-supporting device through the first communication circuit (331). The processor (399) may close the first switch (Sd1) so that the first switch terminal (S1) is electrically connected to the second switch terminal (S2) and close the second switch (Sd2) so that the second switch terminal (S2) is electrically connected to the third switch terminal (S3), if the first external electronic device (301) is a PPS-unsupported device.

[0077] According to one embodiment, the second switching circuit (362) may include a fourth switch terminal (S4) connected to a power terminal (321), a fifth switch terminal (S5) connected to a terminal (T3) of the second power conversion circuit (341), and a sixth switch terminal (S6) connected to a second converter terminal (T6). The second switching circuit (362) may include a plurality of switches (e.g., MOSFETs) (Se3, Se4). It may be configured such that one end (e.g., drain) of the third switch (Se3) is connected to the sixth switch terminal (S6) and the other end (e.g., source) of the third switch (Se3) is connected to the fourth switch terminal (S4). It may be configured such that one end (e.g., drain) of the fourth switch (Se4) is connected to the fourth switch terminal (S4) and the other end (e.g., source) of the fourth switch (Se4) is connected to the fifth switch terminal (S5). The processor (399) is configured to supply power received from the first external electronic device (301) to the second external electronic device (302), and based on the fact that the first external electronic device (301) is identified as a PPS-supporting device through the first communication circuit (331), the processor (399) can open the fourth switch (Se4) to cut off the electrical connection between the fourth switch terminal (S4) and the fifth switch terminal (S5) and close the third switch (Se3) to connect the fourth switch terminal (S4) to the sixth switch terminal (S6). If the first external electronic device (301) is a PPS-unsupported device, the processor (399) can open the fourth switch (Se4) to cut off the electrical connection between the switch terminal (S4) and the fifth switch terminal (S5) and open the third switch (Se3) to cut off the electrical connection between the fourth switch terminal (S4) and the sixth switch terminal (S6).

[0078] The electronic device (300) may include an overvoltage protection circuit (381), a matching circuit (382) for minimizing return loss of the power signal, or a linear regulator (e.g., an LDO (low dropout) (383)). The overvoltage protection circuit (230) is connected to a power line connecting the power terminal (321) and the power conversion circuit (340) to prevent damage to electronic components (e.g., the power conversion circuit (340) or the system (370)) by blocking overvoltage from flowing into the power conversion circuit (340) (or lowering the voltage input to the power conversion circuit (340)). For example, the overvoltage protection circuit (381) may include a Zener diode. A matching circuit (382) can be inserted into the power line between the coil (325) and the AC-DC converter (350), thereby allowing the power line to be matched to a specific impedance. The matching circuit (382) may include at least one of a register, an inductor, or a capacitor as a lumped element. The matching circuit (382) may further include a strip line as a distributed element. The LDO (383) may be configured to output power having a constant voltage. According to one embodiment, the LDO (383) may be a component integrated in a third IC (e.g., an MFC IC (magnetic field communication integrated circuit)) (393) together with the AC-DC converter (350).

[0079] The electronic device (300) may include a second capacitor (C2) and a third capacitor (C3). The second capacitor (C2) can rectify the voltage of the power output from the second power conversion terminal (T2) to the system (370). For rectifying the output voltage, for example, one end of the second capacitor (C2) may be connected between the system (370) and the second power conversion terminal (T2), and the other end may be connected to the ground of the electronic device (300). As another example, one end of the second capacitor (C2) may be connected between an inductor (L) and the second power conversion terminal (T2). The third capacitor (C3) can ensure that the power input to the first power conversion terminal (T1) has a stable voltage. For example, when the current input to the first power conversion terminal (T1) rises rapidly, a phenomenon in which the input voltage fluctuates (also known as overshoot) may occur. The third capacitor (C3) suppresses this phenomenon, thereby allowing a constant voltage to be input to the first power conversion terminal (T1). According to one embodiment, at least one of the second capacitor (C2) and the third capacitor (C3) may be a component integrated into the first IC (391).

[0080] The electronic device (300) may include a first battery switch (SBAT1). The first battery switch (SBAT1) may be configured to connect or disconnect the second power conversion terminal (T2) and the system (370) to the first battery (311). Power from the first battery (311) may be supplied to the system (370) through the first battery switch (SBAT1). Power output from the second power conversion terminal (T2) may be supplied to the first battery (311) through the first battery switch (SBAT1). The first battery switch (SBAT1) may be configured to connect or disconnect the fourth power conversion terminal (T4) to the system (370). Power output from the fourth power conversion terminal (T4) may be supplied to the system (370) through the first battery switch (SBAT1). According to one embodiment, the first battery switch (SBAT1) may be a component integrated into the second IC (392).

[0081] Instructions may be stored in memory (388) or internal memory of the processor (399). Instructions may be partially stored in memory (388) and internal memory of the processor (399). When executed by the processor (399), instructions may cause the electronic device (300) to perform an operation according to an embodiment of the present disclosure (e.g., an operation to divide power received from a first external electronic device (301) into power to supply to the first battery (311) and system (370) and power to supply to the second external electronic device (302)).

[0082] FIG. 4 illustrates the configuration of a second switching circuit (362) according to one embodiment. Referring to FIG. 4, one end (e.g., drain) of the third switch (Se3) may be configured to be connected to the sixth switch terminal (S6) and the other end (e.g., source) of the third switch (Se3) may be configured to be connected to the fifth switch terminal (S5). One end (e.g., drain) of the fourth switch (Se4) may be configured to be connected to the fourth switch terminal (S4) and the other end (e.g., source) of the fourth switch (Se4) may be configured to be connected to the fifth switch terminal (S5). The processor (399) is configured to supply power received from the first external electronic device (301) to the second external electronic device (302), and based on the fact that the first external electronic device (301) is identified as a PPS-supporting device through the first communication circuit (331), the fourth switch (Se4) can be closed so that the fourth switch terminal (S4) is connected to the fifth switch terminal (S5), and the third switch (Se3) can be closed so that the fifth switch terminal (S5) is connected to the sixth switch terminal (S6). Additionally, the processor (399) can disable the second power conversion circuit (342) (e.g., keep switch Sb1 in the second power conversion circuit (342) open). If the first external electronic device (301) is a PPS-unsupported device, the processor (399) can open the fourth switch (Se4) so ​​that the electrical connection between the switch terminal (S4) and the fifth switch terminal (S5) is cut off.

[0083] FIGS. 5A and 5B are drawings for illustrating power distribution using the switch (360) of FIG. 3 according to one embodiment. For ease of understanding, some configurations or reference numerals among the configurations shown in FIG. 3 may be omitted in FIGS. 5A and 5B. According to one embodiment, a processor (399) in an electronic device (300) may be configured to perform the operation described with reference to FIGS. 5A and 5B. According to one embodiment, when instructions stored in memory (e.g., memory (388) and / or internal memory of the processor (399)) are executed by the processor (399), the electronic device (300) may be configured to perform the operation described with reference to FIGS. 5A and 5B.

[0084] Referring to FIG. 5a, the electronic device (300) can determine through the first communication circuit (331) that the first external electronic device (301) is a PPS non-supporting device. Alternatively, the electronic device (300) can determine that even though the first external electronic device (301) is a PPS-supporting device, the maximum output voltage (and / or maximum power) is less than a specified threshold (e.g., 9V, 15W). Based on the fact that the first external electronic device (301) is a PPS non-supporting device or that the maximum output voltage (and / or maximum output power) is found to be below a threshold, the electronic device (300) may close switches Sd1 and Sd2 and open Se3. Accordingly, the power (510) received from the first external electronic device (301) to the electronic device (300) may be divided into a first power (511) and a second power (512) at the second switch terminal (S2) of the first switch (361). The first power (511) is input to the first power conversion terminal (T1) of the first power conversion circuit (341) and may be supplied to the first battery (311) and the system (370) through the first power conversion circuit (341). The second power (512) is input to the second converter terminal (T6) of the AC-DC converter (350) through switch Sd2 and the AC-DC converter (350) and It can be supplied to a second external electronic device (302) through a coil (325). For example, when 15W (5V*3A) is input to the electronic device (300), 5W (5V*1A) can be input to the first power conversion terminal (T1) and 10W (5V*2A) can be input to the second converter terminal (T6).

[0085] The first power conversion circuit (341) can fix the voltage output from the second power conversion terminal (T2) to the first battery (311) and the system (370) to a specified voltage value (e.g., the potential difference between the two poles when the first battery (311) is fully charged). Accordingly, power having the specified voltage can be output to the first battery (311) and the system (370) through the second power conversion terminal (T2). The AC-DC converter (350) can adjust the voltage output from the first converter terminal (T5) to the coil (325). For example, the electronic device (300) can change the output voltage at the first converter terminal (T5) by changing the switching frequency to periodically alternate between the fifth switching state and the sixth switching state. For example, if the switching frequency increases, the resistance in the coil (325) increases, and consequently, the output voltage may decrease. Conversely, if the switching frequency decreases, the resistance becomes relatively smaller, and consequently, the output voltage may increase.

[0086] The electronic device (300) may request power lower than a specified threshold from the first external electronic device (301) when power is divided at the first switch (361) as in FIG. 5a. Here, the threshold may be set based on the maximum rated power value that can be input to the first IC (391) (or the first power conversion circuit (341)). For example, the electronic device (300) may receive power specification information from the first external electronic device (301) through the first communication circuit (331). The received power specification information may include information (e.g., a PDO list) indicating the power that can be supplied by the first external electronic device (301). For example, the PDO list may include information indicating “15W (5V*3A) and 25W (10V*2.5A)” as the power that can be supplied. If the rated power value specified in the first IC (391) (or, the first power conversion circuit (341)) is 15W and the first external electronic device (301) is a PPS non-supported device or the maximum output voltage (and / or maximum output power) is below a threshold (e.g., 9V, 15W), the electronic device (300) can send a message to the first external electronic device (301) via the first communication circuit (331) requesting that the voltage output from the first external electronic device (301) to the electronic device (300) be fixed at a specified voltage value (e.g., 5V) and that the current be output at 3A or less (i.e., the maximum current value be set to 3A). Damage to the first IC (391) can be prevented by making the maximum input power 15W or less.

[0087] Referring to FIG. 5b, the electronic device (300) can confirm through the first communication circuit (331) that the first external electronic device (301) is a PPS-supported device. Based on the confirmation that the first external electronic device (301) is a PPS-supported device, the electronic device (300) can close switches Sd1 and Se3 and open Sd2. Accordingly, power (520) received from the first external electronic device (301) to the electronic device (300) can be divided into a first power (521) and a second power (522) at a node (N1) that is commonly connected to switch terminals S1 and S4. The first power (521) can be input from the node (N1) to the first power conversion terminal (T1) of the first power conversion circuit (341) through switch Sd1 and supplied to the first battery (311) and the system (370) through the first power conversion circuit (341). The second power (512) can be input from node (N1) to the second converter terminal (T6) of the AC-DC converter (350) through switch Se3 and supplied to the second external electronic device (302) through the AC-DC converter (350) and coil (325). For example, when 25W (10V*2.5A) is input to the electronic device (300), 15W (10V*1.5A) can be input to the first power conversion terminal (T1) and 10W (10V*1A) can be input to the second converter terminal (T6). According to one embodiment, the electronic device (300) can close switches Sd1 and Se3 and open Sd2, based further on the fact that the first external electronic device (301) is identified as a device capable of outputting voltage (and / or power (e.g., 15W)) above a threshold (e.g., 9V).

[0088] The first power conversion circuit (341) can change the voltage (e.g., 10V) input to the first power conversion terminal (T1) to a specified voltage value (e.g., the potential difference between the two poles when the first battery (311) is fully charged) and output it to the first battery (311) and the system (370) through the second power conversion terminal (T1). The electronic device (300) can adjust the voltage input to the second converter (T6) through communication with the first external electronic device (301) that supports PPS. For example, while the electronic device (300) transmits power to the second external electronic device (302) through the coil (325), the electronic device (300) can receive a message from the second external electronic device (302) requesting a change in voltage through the second communication circuit (332). For example, the electronic device (300) may periodically receive a control error packet (CEP) defined in the WPC standard from the second external electronic device (302). The CEP contains an error value, for example, the error value may be an integer between -128 and +127. If the error value is '0', the electronic device (300) may maintain the input voltage input to the second converter (T6). If the error value is negative, the electronic device (300) may transmit a message requesting the voltage to be lowered to the first external electronic device (301) via the first communication circuit (331). If the error value is positive, the electronic device (300) may transmit a message requesting the voltage to be raised to the first external electronic device (301) via the first communication circuit (331). Accordingly, the voltage input to the second converter (T6) may be changed. The voltage input to the first power conversion terminal (T1) is also changed, but the voltage output from the second power conversion terminal (T1) to the first battery (311) and the system (370) can be fixed to a specified voltage value (e.g., the potential difference between the two poles of the first battery (311) when the first battery (311) is fully charged) by the first power conversion circuit (341).According to one embodiment, the electronic device (300) may change the output voltage at the first converter terminal (T5) by changing the switching frequency to periodically alternate between the fifth switching state and the sixth switching state based on the reception of an error value.

[0089] The electronic device (300) can request power higher than the aforementioned rated power value from the first external electronic device (301) when power is divided at the node (N) as in FIG. 5b. For example, power specification information can be received from the first external electronic device (301) through the first communication circuit (331). The received power specification information may include information indicating that the first external electronic device (301) is a device that supports PPS, such as information indicating the range of outputtable voltage (e.g., 3.3 to 11 V) from the first external electronic device (301). As the first external electronic device (301) is identified as a PPS-supported device capable of outputting a voltage above a threshold (e.g., 9 V), the electronic device (300) can receive power higher than the aforementioned rated power value (e.g., 25 W) from the first external electronic device (301).

[0090] FIG. 6 is a block diagram of an electronic device (300) configured to receive and transmit power according to one embodiment. Referring to FIG. 6, a second switch (362; see FIG. 3) is omitted in the electronic device (300), and instead, a third switching circuit (663) is included in the switching circuit (360). The electronic device (300) may further include a second battery switch (SBAT2) and a second battery (612).

[0091] According to one embodiment, the third switching circuit (663) may include a third switch terminal (S3), a seventh switch terminal (S7) connected to the second converter terminal (T6), and an eighth switch terminal (S8) connected to the power terminal (321) and the third power conversion terminal (T3). The third switching circuit (663) may include a plurality of switches (e.g., MOSFETs) (Sf5, Sf6) and a plurality of diodes (D1, D2). One end (e.g., source) of the fifth switch (Sf5) may be connected to the seventh switch terminal (S7), the other end (e.g., drain) of the fifth switch (Sf5) may be connected to one end (e.g., drain) of the sixth switch (Sf6), and the other end (e.g., source) of the sixth switch (Sf6) may be configured to be connected to the eighth switch terminal (S8). Both ends of the first diode (D1) may be connected to both ends of the fifth switch (Sf5) respectively and configured so that current flows only from the eighth switch terminal (S8) to the seventh switch terminal (S7). Both ends of the second diode (D2) may be connected to both ends of the sixth switch (Sf6) respectively and configured so that current flows only from the seventh switch terminal (S7) to the eighth switch terminal (S8). The processor (399) is configured to supply power received from the first external electronic device (301) to the second external electronic device (302), and based on the fact that the first external electronic device (301) is identified as a PPS-supported device through the first communication circuit (331), the sixth switch (Sf6) may be closed so that the eighth switch terminal (S8) is connected to the seventh switch terminal (S7). The processor (399) can open the fifth switch (Sf5) to cut off the electrical connection between the seventh switch terminal (S7) and the eighth switch terminal (S8) when the first external electronic device (301) is a PPS non-supported device.

[0092] The second battery switch (SBAT2) may be configured to connect or disconnect the second power conversion terminal (T2) and the system (370) to the second battery (612). Power from the second battery (612) may be supplied to the system (370) through the second battery switch (SBAT2). Power output from the second power conversion terminal (T2) may be supplied to the second battery (612) through the second battery switch (SBAT2).

[0093] According to one embodiment, the electronic device (300) may have a multi-foldable housing structure. For example, the electronic device (300) may include a first housing and a second housing rotatably coupled thereto. The battery (300) may include a first battery (311). The battery (300) may further include a second battery (612). The first battery (311) may be placed in the first housing. The second battery (312) may be placed in the second housing.

[0094] FIGS. 7a and 7b are drawings for explaining power distribution using the switch (360) of FIG. 6 according to one embodiment. For ease of understanding, some components or reference numerals among the components shown in FIG. 6 may be omitted in FIGS. 7a and 7b. According to one embodiment, a processor (399) in an electronic device (300) may be configured to perform the operation described with reference to FIGS. 7a and 7b. According to one embodiment, when instructions stored in memory (e.g., memory (388) and / or internal memory of the processor (399)) are executed by the processor (399), the electronic device (300) may be configured to perform the operation described with reference to FIGS. 7a and 7b.

[0095] Referring to FIG. 7a, the electronic device (300) can determine through the first communication circuit (331) that the first external electronic device (301) is a PPS non-supporting device. Alternatively, the electronic device (300) can determine that even though the first external electronic device (301) is a PPS-supporting device, the maximum output voltage is less than a specified threshold (e.g., 9V). Based on the fact that the first external electronic device (301) is a PPS non-supporting device or that the maximum output voltage is found to be below a threshold, the electronic device (300) can close switches Sd1 and Sd2 and open Sf5. Accordingly, the power (710) received from the first external electronic device (301) to the electronic device (300) can be divided into a first power (711) and a second power (712) at the second switch terminal (S2) of the first switch (361). The first power (711) is input to the first power conversion terminal (T1) of the first power conversion circuit (341) and can be supplied to the first battery (311) and the system (370) through the first power conversion circuit (341). The second power (712) is input to the second converter terminal (T6) of the AC-DC converter (350) through switch Sd2 and the AC-DC converter (350) and the coil (325) It can be supplied to the second external electronic device (302) through this. Otherwise, the description related to FIG. 7a is replaced by the description above related to FIG. 5a.

[0096] Referring to FIG. 7b, the electronic device (300) can confirm through the first communication circuit (331) that the first external electronic device (301) is a PPS-supported device. Based on the confirmation that the first external electronic device (301) is a PPS-supported device, the electronic device (300) can close switch Sd1, open Sd2, and close switch Se3. Accordingly, the power (720) received from the first external electronic device (301) to the electronic device (300) can be divided into a first power (721) and a second power (722) at a node (N2) that is commonly connected to switch terminals S1 and S8. The first power (721) is input from node (N2) to the first power conversion terminal (T1) of the first power conversion circuit (341) via switch Sd1 and can be supplied to the first battery (311) and system (370) via the first power conversion circuit (341). The second power (712) is input from node (N2) to the second converter terminal (T6) of the AC-DC converter (350) via switch Sf6 and can be supplied to the second external electronic device (302) via the AC-DC converter (350) and coil (325). Otherwise, the description related to FIG. 7b is replaced by the description above with respect to FIG. 5b.

[0097] FIG. 8 is a flowchart illustrating a power distribution operation using a PPS-supported or non-PPS-supported device according to one embodiment. According to one embodiment, a processor (399) in an electronic device (300) may be configured to perform the operation of FIG. 8. According to one embodiment, instructions stored in memory (e.g., memory (388)) in the electronic device (300) may cause the electronic device (300) to perform the operation of FIG. 8 when executed by the processor (399). In one embodiment, the operation of FIG. 8 may be performed based on what is recognized by the electronic device (300) via wireless communication (e.g., magnetic field communication via a coil (325)) of a power receiving device (e.g., a second external electronic device (302)) while the battery is being charged using power supplied from a power supply device (e.g., a first external electronic device (301)) connected to the electronic device (300) through a connector (320). In one embodiment, the operation of FIG. 8 can be performed based on the electronic device (300) recognizing that the power supply device is connected to the connector (320) when power is being supplied to the power receiving device through the coil (325).

[0098] In operation 810, the electronic device (300) can check the power specification information of the power supply device. In operation 815, the electronic device (300) can determine whether power sharing to the power receiving device can be performed at high speed based on the checked information. The electronic device (300) can check from the power specification information that the power supply device is a PPS-supported device and perform operation 820. The electronic device (300) can check from the power specification information that the power supply device is a PPS-non-supported device and perform operation 830.

[0099] In operation 820, the electronic device (300) can configure (or form, in other words, form) a first power path for performing high-speed power sharing with a power receiving device by controlling a switch (360) in the electronic device (power relay device) (300). Referring to FIGS. 5b and 7b, the first power path corresponds to a path that causes the received power (520 or 720) to be divided into a first power (521 or 721) and a second power (522 or 722) at a node (N1 or N2), and a detailed description is replaced by the one described above in relation to FIGS. 5b and 7b.

[0100] While the first power path is configured in the electronic device (300), in operation 825, the electronic device (300) can change the voltage output from the coil (325) of the electronic device (300) to the power receiving device using an input voltage changing method. The input voltage changing method is a method of changing the voltage input to the second converter terminal (T6) through communication with the first external electronic device (301) that supports PPS, and a detailed description is replaced by the one described above in relation to FIG. 5b.

[0101] In operation 830, the electronic device (300) can configure a second power path in the electronic device (300) to perform power sharing with a power receiving device at a normal speed by controlling the switch (360). Referring to FIGS. 5a and 7a, the second power path corresponds to a path in which the received power (510 or 710) is divided into a first power (511 or 711) and a second power (512 or 712) at the second switch terminal (S2) of the first switch (361), and a detailed description is replaced by the one described above in relation to FIGS. 5a and 7a.

[0102] While the second power path is configured in the electronic device (300), in operation 835, the electronic device (300) can change the voltage output from the coil (325) of the electronic device (300) to the power receiving device using a frequency changing method. The frequency changing method is a method of changing the switching frequency of the AC-DC converter (350), and a detailed description is replaced by the one described above in relation to FIG. 5a.

[0103] According to one embodiment, a frequency changing method may be additionally performed in operation 825 to finely adjust the output voltage output from the first converter terminal (T5) to the coil (325). According to one embodiment, when an input voltage changing method is performed in operation 825, the switching frequency may be fixed to a specified value (e.g., about 127.7 kHz) to improve the power transmission efficiency.

[0104] According to one embodiment, if the power supply is identified as a PPS-supported device capable of outputting a voltage (and / or power (e.g., 15W)) above a threshold (e.g., 9V), operation 820 may be performed.

[0105] According to one embodiment, even though the power supply is a PPS-supported device, if the maximum voltage (and / or power) that can be output from the power supply is less than a specified threshold (e.g., 9V, 15W), operation 830 may be performed instead of operation 820.

[0106] FIG. 9 is a flowchart illustrating operations performed in an electronic device (300) while providing power from a power supply device supporting PPS to a power receiving device, according to one embodiment. According to one embodiment, a processor (399) in the electronic device (300) may be configured to perform the operations of FIG. 9. According to one embodiment, instructions stored in memory (e.g., memory (388)) in the electronic device (300) may cause the electronic device (300) to perform the operations of FIG. 9 when executed by the processor (399). According to the standard defined by WPC, operations for wirelessly charging the battery of a power receiving device (e.g., a second external electronic device (302)) may include a signal strength (SS) identification (ID) step, a configuration step, and a power transfer step. In the SS ID stage, the electronic device (300) can identify the power receiving device based on the power receiving device's response to a ping signal (or wake-up signal) transmitted by the electronic device (300). In the setting stage, the electronic device (300) can set a power value to be transmitted to the power receiving device through data communication with the power receiving device. In the power transmission stage, the electronic device (300) can transmit power having the set power value to the power receiving device through a coil. In one embodiment, the operation of FIG. 9 can be performed while receiving power through a connector (320) from a power supply device supporting PPS (e.g., a first external electronic device (301)) and transmitting power to the power receiving device through a first power path (see operation 820 of FIG. 8).

[0107] In operation 910, the electronic device (300) may receive a first message containing an error value from the power receiving device. In operation 915, the electronic device (920) may determine that the error value is not '0' and accordingly perform operations 920 and 930. If the error value is '0', operations 920 and 930 are not performed, and operation 940 may be performed. Here, the error means that the voltage input to the power receiving device does not match the specified target voltage value. Therefore, an error value of '0' indicates that the specified target voltage is being input to the power receiving device. If the error value is negative, it indicates that a voltage lower than the target voltage value is being input to the power receiving device. If the error value is positive, it indicates that a voltage higher than the target voltage value is being input to the power receiving device.

[0108] In operation 920, the electronic device (300) can reset the input voltage of the second converter terminal (T6) based on the sign and magnitude of the error value. When the magnitude of the error value increases by '1', the unit for voltage adjustment (increase or decrease) can be specified as a default value, for example, 20mV. For example, if the currently set input voltage is 5V and the error value is +1, the input voltage value to be newly set can be 5V+20*1mV, and if the error value is -1, the input voltage value to be newly set can be 5V-20*1mV. If the magnitude of the error value is 5 or greater, the above-mentioned unit can be adjusted to 30mV. For example, if the currently set input voltage is 5V and the error value is +5, the input voltage value to be newly set can be 5V+30*5mV, and if the error value is +6, the input voltage value to be newly set can be 5V+30*6mV. If the magnitude of the error value is 10 or greater, the unit described above may be adjusted to 40mV. For example, if the currently set input voltage is 5V and the error value is +10, the input voltage value to be newly set may be 5V+40*10mV, and if the error value is +11, the input voltage value to be newly set may be 5V+40*11mV.

[0109] In operation 930, the electronic device (300) may transmit a second message containing information indicating a reset input voltage to the power supply. The power supply may check the information indicating the changed input voltage in the second message and adjust the voltage to be output to the electronic device (300) based on the checked information.

[0110] In operation 940, the electronic device (300) may transmit a second message to the power supply device containing information indicating that there is no change in the input voltage. The power supply device may check the information in the second message indicating that there is no change in the input voltage and maintain the output voltage as before.

[0111] According to one embodiment, the electronic device (300) can set a transmission period for a first message and transmit the information to a power receiving device through a second communication circuit (332). Accordingly, the power receiving device can transmit the first message to the electronic device (300) at set periods. For example, the first external electronic device (301) may be absent, and the electronic device (300) alone may supply power from the battery (310) to the second external electronic device (302) as a power supply device. At this time, the transmission period of the first message set may be a first period (e.g., 10 seconds) designated as a default value. When a first external electronic device (301) is connected to an electronic device (300) and a first power path is formed in the electronic device (300) so that power from the first external electronic device (301) is supplied to a battery (310) and a second external electronic device (302), the electronic device (300) may set the transmission period of the first message to a second period (e.g., 1 second) shorter than the first period. To respond quickly to a request from the second external electronic device (302), the electronic device (300) may set the transmission period of the second message based on the second period. For example, the electronic device (300) may transmit the second message to the power supply device every second period.

[0112] According to one embodiment, the minimum value of the input voltage of the second converter terminal (T6) can be set based on the potential difference between the two poles when the battery (310) (e.g., the first battery (311)) is fully charged. For example, the input voltage of the second converter terminal (T6) may be substantially the same as the voltage at the second power conversion terminal (T2). Therefore, if this input voltage is smaller than the potential difference described above, a situation may occur where the battery (310) is not charged. If the potential difference when fully charged is 4.5V, the electronic device (300) may set the minimum value of the input voltage of the second converter terminal (T6) to be higher than 4.5V, for example, 4.6V, in order to maintain the charge of the battery (310).

[0113] FIG. 10 is a flowchart illustrating operations performed in an electronic device (300) while providing power from a power supply device supporting PPS to a power receiving device, according to one embodiment. According to one embodiment, a processor (399) in the electronic device (300) may be configured to perform the operations of FIG. 10. According to one embodiment, instructions stored in memory (e.g., memory (388)) in the electronic device (300) may cause the electronic device (300) to perform the operations of FIG. 10 when executed by the processor (399). In one embodiment, the operations of FIG. 10 may be performed while receiving power from a power supply device supporting PPS (e.g., a first external electronic device (301)) through a connector (320) and transmitting power to a power receiving device (e.g., a second external electronic device (302)) through a first power path (see operation 820 in FIG. 8).

[0114] In operation 1010, the electronic device (300) can set a minimum value and a first maximum value of the input voltage at the second converter terminal (T6) based on power specification information provided by the power supply and the full charge voltage value of the battery (310). The power specification information may include information indicating the voltage range that the power supply can supply. For example, the power usage information may include 9V APDO (3.3–11V), 15V APDO (3.3–16V), and 20V APDO (3.3–21V). The electronic device (300) can set 11V at the 9V APDO (3.3–11V) as the first maximum value. The electronic device (300) can set the minimum value to a value lower than the full charge voltage value (e.g., 4.6V).

[0115] In operation 1020, the electronic device (300) can set the input voltage based on the error value received from the power receiving device.

[0116] In operation 1030, the electronic device (300) can determine whether the set input voltage is greater than the first maximum value. If the input voltage is greater than the first maximum value, in operation 1035, the electronic device (300) can change the maximum value to the second maximum value or reset the input voltage to a value lower than the first maximum value. For example, the electronic device (300) can set the second maximum value to 16V in the 15V APDO (3.3–16V) or 21V in the 20V APDO (3.3–21V). If 21V is set as the first maximum value, the electronic device (300) can reset the input voltage to the first maximum value or lower.

[0117] If the input voltage is less than or equal to the first maximum value, in operation 1040 the electronic device (300) can determine whether the set input voltage is less than the minimum value. In operation 1045 the electronic device (300) can stop supplying power to the power receiving device.

[0118] When the input voltage is less than or equal to the first maximum value and greater than the minimum value, the electronic device (300) in operation 1050 can maintain the maximum value of the input voltage as the first maximum value.

[0119] According to one embodiment, an electronic device (e.g., the electronic device (300) of FIG. 3) comprises: a battery; a connector (e.g., connector (320)) including a power terminal for receiving power from an external power supply and a data terminal for communicating with said power supply; a first power conversion circuit (e.g., first power conversion circuit (341)) including a first power conversion terminal connected to said power terminal and a second power conversion terminal connected to said battery, configured to convert the voltage value of the power received from said power supply through said first power conversion terminal and output power to said battery through said second power conversion terminal; a first communication circuit (e.g., first communication circuit (331)) configured to communicate with said power supply through said data terminal; and a coil (e.g., coil (325)) for wirelessly supplying power to an external power receiving device. An AC-DC converter (e.g., AC-DC converter (350)) configured to include a first converter terminal connected to the coil and a second converter terminal connected to the first power conversion circuit, and to convert the current of power received from the second converter terminal from DC (direct current) to AC (alternative current) and output it to the first converter terminal; a first switching circuit (e.g., first switching circuit (361)) configured to connect the power terminal and the second converter terminal to the first power conversion terminal; a second switching circuit (e.g., second switching circuit (362)) configured to connect the power terminal to the second converter terminal; a memory for storing instructions; and at least one processor.When the above instruction is executed individually or collectively by the at least one processor, the electronic device may control the first switching circuit such that the power terminal is connected to the first power conversion terminal and the second converter terminal is not connected to the first power conversion terminal, based on the fact that it is confirmed through the first communication circuit that the power supply device has a function (PPS) for stepwise adjusting the voltage value of the power to be output to the electronic device, and may control the second switching circuit such that the power terminal is connected to the second converter terminal. When the above instruction is executed individually or collectively by the at least one processor, the electronic device may control the first switching circuit such that the power terminal and the second converter terminal are connected to the first power conversion terminal, based on the fact that it is confirmed through the first communication circuit that the power supply device does not have said function, and may control the second switching circuit such that the power terminal is not connected to the second converter terminal through the second switching circuit.

[0120] When the above instruction is executed individually or collectively by the at least one processor, the electronic device may control the first switching circuit such that the power terminal is connected to the first power conversion terminal and the second converter terminal is not connected to the first power conversion terminal, and control the second switching circuit such that the power terminal is connected to the second converter terminal, based further on the fact that the maximum output voltage of the power supply is greater than or equal to a specified threshold.

[0121] When the above instruction is executed individually or collectively by the at least one processor, the electronic device may control the first switching circuit such that the power terminal is connected to the first power conversion terminal and the second converter terminal is not connected to the first power conversion terminal, and control the second switching circuit such that the power terminal is connected to the second converter terminal, based further on the fact that the maximum power outputtable from the power supply is greater than or equal to a specified threshold.

[0122] The electronic device may further include a second communication circuit (e.g., a second communication circuit (332)) configured to communicate with the power receiving device through the coil. When the instruction is executed individually or collectively by the at least one processor, the electronic device may receive a first message from the power receiving device through the second communication circuit while the voltage input to the second converter terminal is set to a first voltage value, and based on the first message, reset the voltage input to the second converter terminal to a second voltage value and transmit a second message to the power supply device through the first communication circuit requesting the output of power having the second voltage value. When the instruction is executed individually or collectively by the at least one processor, the electronic device may check for an error value in the first message and set the second voltage value based on the sign and magnitude of the error value. When the above instruction is executed individually or collectively by the at least one processor, the electronic device may set the second voltage value lower than the first voltage value in proportion to the magnitude of the error value when the sign is negative, and set the second voltage value higher than the first voltage value in proportion to the magnitude of the error value when the sign is positive.

[0123] When the above command is executed individually or collectively by the at least one processor, the electronic device may fix the frequency for converting DC to AC in the AC-DC converter to a specified value (e.g., 127.7 kHz) based on the fact that the power supply device has the above function.

[0124] The first switching circuit may include a first switch terminal connected to the power terminal; a second switch terminal connected to the first power conversion terminal; and a third switch terminal connected to the second converter terminal. When the instruction is executed individually or collectively by the at least one processor, the electronic device may cause the first switch terminal and the second switch terminal to be electrically connected and the second switch terminal and the third switch terminal to be electrically disconnected, based on the power supply having the function.

[0125] The first switching circuit can be integrated into a single integrated circuit together with the first power conversion circuit.

[0126] The electronic device may further include a second power conversion circuit (e.g., a second power conversion circuit (342)). The second power conversion circuit may include a third power conversion terminal connected to the power terminal and a fourth power conversion terminal connected to the battery. The second power conversion circuit may be configured to lower the voltage value of the power received from the power supply device through the third power conversion terminal by 1 / N times, increase the current value by N times, and output the power to the battery through the fourth power conversion terminal. The second switching circuit may include a fourth switch terminal connected to the power terminal; a fifth switch terminal connected to the third power conversion terminal; and a sixth switch terminal connected to the second converter terminal. When the instruction is executed individually or collectively by the at least one processor, the electronic device may electrically disconnect the fourth switch terminal and the fifth switch terminal and electrically connect the fourth switch terminal and the sixth switch terminal based on the power supply device having the function.

[0127] The second switching circuit can be integrated into another IC together with the second power conversion circuit.

[0128] According to one embodiment, a method for operating an electronic device (e.g., electronic device (300)) is provided. The electronic device comprises: a battery; a connector including a power terminal for receiving power from an external power supply device and a data terminal for communicating with the power supply device; a first power conversion circuit including a first power conversion terminal connected to the power terminal and a second power conversion terminal connected to the battery, configured to convert the voltage value of the power received from the power supply device through the first power conversion terminal and output the power to the battery through the second power conversion terminal; a first communication circuit configured to communicate with the power supply device through the data terminal; a coil for wirelessly supplying power to an external power receiving device; and an AC-DC converter including a first converter terminal connected to the coil and a second converter terminal connected to the first power conversion circuit, configured to convert the current of the power received from the second converter terminal from DC (direct current) to AC (alternative current) and output it to the first converter terminal. It includes a first switching circuit configured to connect the power terminal and the second converter terminal to the first power conversion terminal; and a second switching circuit configured to connect the power terminal to the second converter terminal.The above method may include: a first operation of controlling the first switching circuit such that the power terminal is connected to the first power conversion terminal and the second converter terminal is not connected to the first power conversion terminal, and controlling the second switching circuit such that the power terminal is connected to the second converter terminal, based on confirmation through the first communication circuit that the power supply device has a function of gradually adjusting the voltage value of the power to be output to the electronic device; and a second operation of controlling the first switching circuit such that the power terminal and the second converter terminal are connected to the first power conversion terminal, based on confirmation through the first communication circuit that the power supply device does not have the said function, and controlling the second switching circuit such that the power terminal is not connected to the second converter terminal through the second switching circuit.

[0129] The above first operation may be performed further based on the fact that the maximum output voltage of the power supply is greater than or equal to a specified threshold.

[0130] The above first operation may be performed further based on the fact that the maximum power outputtable from the power supply is greater than or equal to a specified threshold.

[0131] The electronic device may further include a second communication circuit configured to communicate with the power receiving device through the coil. The method may further include: receiving a first message from the power receiving device through the second communication circuit while the voltage input to the second converter terminal is set to a first voltage value; resetting the voltage input to the second converter terminal to a second voltage value based on the first message; and transmitting a second message requesting to output power having the second voltage value to the power supply device through the first communication circuit.

[0132] In the above explanation, prefixes such as “first,” “second,” and “third” are intended merely to distinguish components of the same name and are not assigned any special meaning in themselves, such as importance or order.

[0133] The electronic device according to the various embodiments disclosed in this document may be 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.

[0134] 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, 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 each 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 said components from other said components and do not limit said components in any other aspect (e.g., importance or order). Where any (e.g., 1st) component is referred to as "coupled" or "connected" to another (e.g., 2nd) component, with or without the terms "functionally" or "communicationly," it means that said any component may be connected to said other component directly (e.g., via a wire), wirelessly, or through a third component.

[0135] 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. According to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0136] 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.

[0137] 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., compact disc read-only memory (CD-ROM)) or an application store (e.g., Play Store). TM It can be distributed online (e.g., downloaded or uploaded) through ) 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.

[0138] 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 of the aforementioned components may be omitted, or one or more other components or operations may be added. Generally or additionally, 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.

Claims

1. In an electronic device, battery; A connector comprising a power terminal for receiving power from an external power supply and a data terminal for communicating with said power supply; A first power conversion circuit comprising a first power conversion terminal connected to the power terminal and a second power conversion terminal connected to the battery, configured to convert the voltage value of power received from the power supply device through the first power conversion terminal and output power to the battery through the second power conversion terminal; A first communication circuit configured to communicate with the power supply device through the data terminal; A coil for wirelessly supplying power to an external power receiving device; An AC-DC converter comprising a first converter terminal connected to the coil and a second converter terminal connected to the first power conversion circuit, configured to convert the current of power received from the second converter terminal from DC (direct current) to AC (alternative current) and output it to the first converter terminal; A first switching circuit configured to connect the power terminal and the second converter terminal to the first power conversion terminal; A second switching circuit configured to connect the above power terminal to the above second converter terminal; Memory for storing instructions; and It includes at least one processor, When the above instruction is executed individually or collectively by the at least one processor, the electronic device, Based on the fact that it is confirmed through the first communication circuit that the power supply device has a function of adjusting the voltage value of the power to be output to the electronic device in steps, the first switching circuit is controlled such that the power terminal is connected to the first power conversion terminal and the second converter terminal is not connected to the first power conversion terminal, and the second switching circuit is controlled such that the power terminal is connected to the second converter terminal. An electronic device that controls the first switching circuit so that the power terminal and the second converter terminal are connected to the first power conversion terminal based on the fact that the power supply device does not have the above function as confirmed through the first communication circuit, and controls the second switching circuit so that the power terminal is not connected to the second converter terminal through the second switching circuit.

2. In claim 1, when the instruction is executed individually or collectively by the at least one processor, the electronic device, An electronic device that, based further on the fact that the maximum output voltage of the power supply unit is greater than or equal to a specified threshold, controls the first switching circuit such that the power terminal is connected to the first power conversion terminal and the second converter terminal is not connected to the first power conversion terminal, and controls the second switching circuit such that the power terminal is connected to the second converter terminal.

3. In claim 1, when the instruction is executed individually or collectively by the at least one processor, the electronic device, An electronic device that, based further on the fact that the maximum power outputtable of the power supply device is greater than or equal to a specified threshold, controls the first switching circuit such that the power terminal is connected to the first power conversion terminal and the second converter terminal is not connected to the first power conversion terminal, and controls the second switching circuit such that the power terminal is connected to the second converter terminal.

4. In claim 1, further comprising a second communication circuit configured to communicate with the power receiving device through the coil, wherein when the instruction is executed individually or collectively by the at least one processor, the electronic device, In a state where the voltage input to the second converter terminal is set to a first voltage value, a first message is received from the power receiving device through the second communication circuit, and Based on the first message above, the voltage input to the second converter terminal is reset to a second voltage value, and An electronic device that transmits a second message requesting the output of power having the second voltage value to the power supply device through the first communication circuit.

5. In claim 4, when the instruction is executed individually or collectively by the at least one processor, the electronic device, Check the error value in the first message above, and An electronic device that sets the second voltage value based on the sign and magnitude of the error value.

6. In claim 5, when the instruction is executed individually or collectively by the at least one processor, the electronic device, If the above sign is negative, the second voltage value is set lower than the first voltage value and in proportion to the magnitude of the error value, and An electronic device that, when the sign is positive, sets the second voltage value higher than the first voltage value and in proportion to the magnitude of the error value.

7. In claim 4, when the instruction is executed individually or collectively by the at least one processor, the electronic device, An electronic device that fixes the frequency for converting DC to AC in the AC-DC converter to a specified value, based on the above power supply device having the above function.

8. In Paragraph 1, The above first switching circuit is, A first switch terminal connected to the above power terminal; A second switch terminal connected to the first power conversion terminal; and It includes a third switch terminal connected to the second converter terminal, and When the above instruction is executed individually or collectively by the at least one processor, the electronic device, An electronic device that electrically connects the first switch terminal and the second switch terminal and electrically disconnects the second switch terminal and the third switch terminal based on the above power supply device having the above function.

9. In claim 8, the first switching circuit is integrated into a single IC (integrated circuit) together with the first power conversion circuit, Electronic device.

10. In claim 1, further comprising a second power conversion circuit configured to include a third power conversion terminal connected to the power terminal and a fourth power conversion terminal connected to the battery, and to lower the voltage value of the power received from the power supply device through the third power conversion terminal by 1 / N times, increase the current value by N times, and output the power to the battery through the fourth power conversion terminal. The above second switching circuit is, A fourth switch terminal connected to the above power terminal; A fifth switch terminal connected to the third power conversion terminal; and It includes a sixth switch terminal connected to the second converter terminal, and When the above instruction is executed individually or collectively by the at least one processor, the electronic device, An electronic device that electrically disconnects the fourth switch terminal and the fifth switch terminal and electrically connects the fourth switch terminal and the sixth switch terminal based on the above power supply device having the above function.

11. In claim 10, the second switching circuit is integrated into another IC together with the second power conversion circuit, Electronic device.

12. In a method of operating an electronic device, The above electronic device is, battery; A connector comprising a power terminal for receiving power from an external power supply and a data terminal for communicating with said power supply; A first power conversion circuit comprising a first power conversion terminal connected to the power terminal and a second power conversion terminal connected to the battery, configured to convert the voltage value of power received from the power supply device through the first power conversion terminal and output power to the battery through the second power conversion terminal; A first communication circuit configured to communicate with the power supply device through the data terminal; A coil for wirelessly supplying power to an external power receiving device; An AC-DC converter comprising a first converter terminal connected to the coil and a second converter terminal connected to the first power conversion circuit, configured to convert the current of power received from the second converter terminal from DC (direct current) to AC (alternative current) and output it to the first converter terminal; A first switching circuit configured to connect the power terminal and the second converter terminal to the first power conversion terminal; and It includes a second switching circuit configured to connect the above power terminal to the above second converter terminal, and A first operation of controlling the first switching circuit such that the power terminal is connected to the first power conversion terminal and the second converter terminal is not connected to the first power conversion terminal, based on confirmation through the first communication circuit that the power supply device has a function of adjusting the voltage value of the power to be output to the electronic device in steps, and controlling the second switching circuit such that the power terminal is connected to the second converter terminal; and A method comprising a second operation of controlling the first switching circuit such that the power terminal and the second converter terminal are connected to the first power conversion terminal based on the fact that the power supply device is not having the above function as confirmed through the first communication circuit, and controlling the second switching circuit such that the power terminal is not connected to the second converter terminal through the second switching circuit.

13. In Paragraph 12, The above first operation is performed based further on the fact that the maximum output voltage of the power supply is greater than or equal to a specified threshold.

14. In Paragraph 12, The above first operation is performed based further on the fact that the maximum power outputtable from the power supply is greater than or equal to a specified threshold.

15. In claim 12, the electronic device further comprises a second communication circuit configured to communicate with the power receiving device through the coil, and An operation of receiving a first message from the power receiving device through the second communication circuit while the voltage input to the second converter terminal is set to a first voltage value; Based on the first message above, an operation to reset the voltage input to the second converter terminal to a second voltage value; and A method further comprising the operation of transmitting a second message requesting to output power having the second voltage value to the power supply device through the first communication circuit.

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