Electronic device including wireless charging device

Abstract

Various embodiments of the present invention relate to an electronic device including a wireless charging device. The wireless charging device may include: a power transmitting coil for wirelessly transmitting power to an electronic device; and a first coil disposed inside the power transmitting coil and through which a magnetic field is formed in a first direction, and the electronic device may include: a power receiving coil for wirelessly receiving power from the power transmitting coil; and a second coil disposed inside the power receiving coil and through which a magnetic field is formed in a second direction opposite the first direction, in which the first coil and the second coil are configured to match such that the power transmitting coil and the power receiving coil are aligned.

Description

Technical Field

[0001] Various embodiments of the present disclosure relate to electronic devices including a wireless charging device. Background Art

[0002] The use of various electronic devices such as mobile terminals and wearable devices is increasing.

[0003] An electronic device may include a battery to supply power necessary to perform various functions. The electronic device may charge the battery through wired charging or wireless charging.

[0004] For example, in wireless charging, when an electronic device is placed on a charging device, power is supplied to a power receiving coil provided inside the electronic device through a power transmitting coil provided inside the charging device, thereby charging a battery of the electronic device. Summary of the Invention

[0005] Technical issues

[0006] Methods for wirelessly charging an electronic device by using a charging device may include an electromagnetic induction method using a coil, a resonance method using resonance, or a radio wave radiation method converting electric energy into microwaves for transmission.

[0007] For example, the electromagnetic induction method wirelessly transmits power from a wireless charging device (eg, a wireless charging transmitter) to an electronic device (eg, a wireless charging receiver) using a magnetic field generated by a coil, thereby charging a battery.

[0008] The electromagnetic induction method can improve charging efficiency when the centers of a coil in a wireless charging device (eg, a power transmitting coil) and a coil in an electronic device (eg, a power receiving coil) are aligned.

[0009] Magnets can be used to align the coil of a wireless charging device with the coil of an electronic device. Using magnets to align the coil of a wireless charging device with the coil of an electronic device can increase the weight and volume of the wireless charging device. When using a wireless charging device to quickly charge an electronic device, if the magnetization of the magnet weakens, alignment between the coil of the wireless charging device and the coil of the electronic device can deteriorate.

[0010] Various embodiments of the present disclosure provide an electronic device including a wireless charging device, which can align the power transmitting coil of the wireless charging device and the power receiving coil of the electronic device by using a first coil set in the power transmitting coil of the wireless charging device and a second coil set in the power receiving coil of the electronic device as electromagnets.

[0011] Technical problems solved by the present disclosure are not limited to those described above, and other technical problems not mentioned herein may be clearly understood by those skilled in the art to which the present disclosure pertains from the following description.

[0012] Technical Solution

[0013] According to an embodiment of the present disclosure, a wireless charging device may include: a power transmitting coil configured to wirelessly transmit power to an electronic device; and a first coil disposed within the power transmitting coil and configured to form a magnetic field in a first direction. According to an embodiment, the electronic device may include: a power receiving coil configured to wirelessly receive power from the power transmitting coil; and a second coil disposed within the power receiving coil and configured to form a magnetic field in a second direction opposite to the first direction. According to an embodiment, the power transmitting coil and the power receiving coil may be configured to align when the first coil and the second coil are mated.

[0014] Beneficial effects

[0015] According to various embodiments of the present disclosure, by using a first coil provided in a power transmitting coil of a wireless charging device and a second coil provided in a power receiving coil of an electronic device as electromagnets, it is possible to improve the adhesion force for aligning the power transmitting coil of the wireless charging device and the power receiving coil of the electronic device.

[0016] According to various embodiments of the present disclosure, by using a first coil provided in a power transmitting coil of a wireless charging device and a second coil provided in a power receiving coil of an electronic device as electromagnets, for example, placing a magnet in the wireless charging device can be omitted.

[0017] Furthermore, various effects that can be understood directly or indirectly through this document can be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In conjunction with the description of the drawings, the same or similar reference numerals may be used for the same or similar components; Figure 1 is a block diagram of an electronic device in a network environment according to various embodiments of the present disclosure; Figure 2 is a block diagram of a power management module and a battery according to various embodiments of the present disclosure; Figure 3A Schematically illustrates an operation of a wireless charging device (eg, a wireless charging transmitter) charging an electronic device (eg, a wireless charging receiver) according to various embodiments of the present disclosure; Figure 3B Schematically illustrates a wireless charging device and a wireless charging environment of an electronic device according to an embodiment of the present disclosure; Figure 3CAn operation of a wireless charging device detecting an object such as an electronic device according to various embodiments of the present disclosure is shown; Figure 4 Schematically illustrates the configuration of a wireless charging device and an electronic device according to various embodiments of the present disclosure; Figure 5 schematically illustrates the configuration of the first coil or the second coil according to an embodiment of the present disclosure; and Figure 6 The configuration of the first coil or the second coil according to various embodiments of the present disclosure is schematically shown. DETAILED DESCRIPTION

[0019] Figure 1 is a block diagram illustrating an electronic device 101 in a network environment 100 according to various embodiments.

[0020] refer to Figure 1 In the network environment 100, the electronic device 101 can communicate with the electronic device 102 via a first network 198 (e.g., a short-range wireless communication network), or can communicate with at least one of the electronic device 104 and the server 108 via a second network 199 (e.g., a long-range wireless communication network). Depending on the embodiment, the electronic device 101 can communicate with the electronic device 104 via the server 108. Depending on the embodiment, the electronic device 101 may include a processor 120, a memory 130, an input module 150, an audio output module 155, a display module 160, an audio module 170, a sensor module 176, an interface 177, a connection terminal 178, a haptic module 179, a camera module 180, a power management module 188, a battery 189, a communication module 190, a subscriber identification module (SIM) 196, or an antenna module 197. In some embodiments, at least one of the aforementioned components (e.g., the connection terminal 178) may be omitted from the electronic device 101, or one or more other components may be added to the electronic device 101. In some embodiments, some of the above-described components (eg, sensor module 176 , camera module 180 , or antenna module 197 ) may be implemented as a single integrated component (eg, display module 160 ).

[0021] The processor 120 may execute, for example, software (e.g., program 140) to control at least one other component of the electronic device 101 connected to the processor 120 (e.g., a hardware component or a software component), and may perform various data processing or calculations. According to embodiments, as at least part of such data processing or calculations, the processor 120 may store commands or data received from another component (e.g., sensor module 176 or communication module 190) in the volatile memory 132, process the commands or data stored in the volatile memory 132, and store the resulting data in the non-volatile memory 134. According to embodiments, the processor 120 may include a main processor 121 (e.g., a central processing unit (CPU) or an application processor (AP)) or an auxiliary processor 123 (e.g., a graphics processing unit (GPU), a neural processing unit (NPU), an image signal processor (ISP), a sensor hub processor, or a communication processor (CP)) that is operationally independent of or integrated with the main processor 121. For example, when the electronic device 101 includes a main processor 121 and an auxiliary processor 123, the auxiliary processor 123 may be adapted to consume less power than the main processor 121 or be adapted to be dedicated to a specific function. The auxiliary processor 123 may be implemented separately from the main processor 121 or as part of the main processor 121.

[0022] When the main processor 121 is inactive (e.g., sleeping), the auxiliary processor 123 (rather than the main processor 121) may control at least some of the functions or states associated with at least one of the components of the electronic device 101 (e.g., the display module 160, the sensor module 176, or the communication module 190). Alternatively, when the main processor 121 is active (e.g., running an application), the auxiliary processor 123 may work with the main processor 121 to control at least some of the functions or states associated with at least one of the components of the electronic device 101 (e.g., the display module 160, the sensor module 176, or the communication module 190). Depending on the embodiment, the auxiliary processor 123 (e.g., an image signal processor or a communication processor) may be implemented as part of another component functionally related to the auxiliary processor 123 (e.g., the camera module 180 or the communication module 190). Depending on the embodiment, the auxiliary processor 123 (e.g., a neural processing unit) may include hardware structures dedicated to artificial intelligence model processing. The artificial intelligence model may be generated through machine learning. For example, such learning may be performed by the electronic device 101 where the artificial intelligence is executed or via a separate server (e.g., server 108). The learning algorithm may include, but is not limited to, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning. The artificial intelligence model may include multiple artificial neural network layers. The 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), or a deep Q network, or a combination of two or more thereof, but is not limited thereto. Additionally or alternatively, the artificial intelligence model may include a software structure in addition to a hardware structure.

[0023] The memory 130 may store various data used by at least one component of the electronic device 101 (e.g., the processor 120 or the sensor module 176). The various data may include, for example, software (e.g., the program 140) and input data or output data for commands related thereto. The memory 130 may include a volatile memory 132 or a non-volatile memory 134.

[0024] The program 140 may be stored as software in the memory 130 , and may include, for example, an operating system (OS) 142 , middleware 144 , or applications 146 .

[0025] The input module 150 may receive commands or data from outside the electronic device 101 (e.g., a user) to be used by other components of the electronic device 101 (e.g., the processor 120). The input module 150 may include, for example, a microphone, a mouse, a keyboard, keys (e.g., buttons), or a digital pen (e.g., a stylus).

[0026] The sound output module 155 can output sound signals to the outside of the electronic device 101. The sound output module 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as playing multimedia or playing records. The receiver can be used to receive incoming calls. Depending on the embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0027] The display module 160 can visually provide information to the outside of the electronic device 101 (e.g., a user). The display device 160 may include, for example, a display, a holographic device, or a projector, and a control circuit for controlling a corresponding one of the display, the holographic device, and the projector. Depending on the embodiment, the display module 160 may include a touch sensor adapted to detect a touch or a pressure sensor adapted to measure the strength of the force caused by the touch.

[0028] The audio module 170 can convert sound into an electrical signal, and vice versa. Depending on the embodiment, the audio module 170 can obtain sound via the input module 150, or output sound via the sound output module 155 or an earphone of an external electronic device (e.g., electronic device 102) directly (e.g., wired) or wirelessly connected to the electronic device 101.

[0029] The sensor module 176 can detect an operating state (e.g., power or temperature) of the electronic device 101 or an environmental state (e.g., a user's state) outside the electronic device 101, and then generate an electrical signal or data value corresponding to the detected state. Depending on the embodiment, the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illumination sensor.

[0030] The interface 177 may support one or more specific protocols to be used to connect the electronic device 101 directly (e.g., wired) or wirelessly to an external electronic device (e.g., the electronic device 102). Depending on the embodiment, the interface 177 may include, for example, a High-Definition Multimedia Interface (HDMI), a Universal Serial Bus (USB) interface, a Secure Digital (SD) card interface, or an audio interface.

[0031] The connection end 178 may include a connector through which the electronic device 101 can be physically connected to an external electronic device (e.g., the electronic device 102). Depending on the embodiment, the connection end 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0032] The haptic module 179 may convert the electrical signal into mechanical stimulation (eg, vibration or motion) or electrical stimulation that can be recognized by the user via his sense of touch or kinesthetic sense. According to an embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulator.

[0033] The camera module 180 may capture still images or moving images. Depending on the embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.

[0034] The power management module 188 may manage power supply to the electronic device 101. According to an embodiment, the power management module 188 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

[0035] The battery 189 may power at least one component of the electronic device 101. According to an embodiment, the battery 189 may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0036] The communication module 190 can support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (e.g., electronic device 102, electronic device 104, or server 108), and perform communication via the established communication channel. The communication module 190 may include one or more communication processors capable of operating independently from the processor 120 (e.g., an application processor (AP)) and support direct (e.g., wired) communication or wireless communication. Depending on the embodiment, the communication module 190 may include a wireless communication module 192 (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (e.g., a local area network (LAN) communication module or a power line communication (PLC) module). A corresponding one of these communication modules can communicate with an external electronic device via a first network 198 (e.g., a short-range communication network such as Bluetooth, Wireless Fidelity (Wi-Fi) Direct, or Infrared Data Association (IrDA)) or a second network 199 (e.g., a long-range communication network such as a traditional cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or a wide area network (WAN))). These various types of communication modules may be implemented as a single component (e.g., a single chip), or may be implemented as multiple components separated from each other (e.g., multiple chips). The wireless communication module 192 may identify and authenticate the electronic device 101 in a communication network (such as the first network 198 or the second network 199) using user information (e.g., an International Mobile Subscriber Identity (IMSI)) stored in the user identification module 196. The communication module 190 can support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (e.g., electronic device 102, electronic device 104, or server 108), and perform communication via the established communication channel. The communication module 190 may include one or more communication processors capable of operating independently from the processor 120 (e.g., an application processor (AP)) and support direct (e.g., wired) communication or wireless communication. Depending on the embodiment, the communication module 190 may include a wireless communication module 192 (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (e.g., a local area network (LAN) communication module or a power line communication (PLC) module). A corresponding one of these communication modules can communicate with an external electronic device via a first network 198 (e.g., a short-range communication network such as Bluetooth, Wireless Fidelity (Wi-Fi) Direct, or Infrared Data Association (IrDA)) or a second network 199 (e.g., a long-range communication network such as a traditional cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or a wide area network (WAN))).These various types of communication modules may be implemented as a single component (e.g., a single chip), or may be implemented as multiple components (e.g., multiple chips) separated from each other. The wireless communication module 192 may use user information (e.g., International Mobile Subscriber Identity (IMSI)) stored in the user identification module 196 to identify and authenticate the electronic device 101 in a communication network (e.g., the first network 198 or the second network 199).

[0037] The wireless communication module 192 can support 5G networks following 4G networks and next-generation communication technologies (e.g., New Radio (NR) access technology). NR access technology can support enhanced mobile broadband (eMBB), massive machine type communication (mMTC), or ultra-reliable low-latency communication (URLLC). The wireless communication module 192 can support high-frequency bands (e.g., millimeter wave bands) to achieve, for example, high data transmission rates. The wireless communication module 192 can support various technologies for ensuring performance in high-frequency bands, such as, for example, beamforming, massive multiple-input multiple-output (massive MIMO), full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, or massive antennas. The wireless communication module 192 can support various requirements specified in the electronic device 101, an external electronic device (e.g., electronic device 104), or a network system (e.g., the second network 199). According to an embodiment, the wireless communication module 192 may support a peak data rate for implementing eMBB (e.g., 20 Gbps or greater), loss coverage for implementing mMTC (e.g., 164 dB or less), or U-plane latency for implementing URLLC (e.g., 0.5 ms or less for each of downlink (DL) and uplink (UL), or 1 ms or less round trip).

[0038] Antenna module 197 can transmit or receive signals or power to or from an external device (e.g., an external electronic device) outside of electronic device 101. Depending on the embodiment, antenna module 197 may include an antenna comprising a radiating element formed of a conductive material or conductive pattern formed in or on a substrate (e.g., a printed circuit board (PCB)). Depending on the embodiment, antenna module 197 may include multiple antennas (e.g., an array antenna). In this case, at least one antenna suitable for the communication scheme used in a communication network (e.g., first network 198 or second network 199) may be selected from the multiple antennas by, for example, communication module 190 (e.g., wireless communication module 192). Signals or power can then be transmitted or received between communication module 190 and the external electronic device via the selected at least one antenna. Depending on the embodiment, additional components (e.g., a radio frequency integrated circuit (RFIC)) in addition to the radiating element may also be formed as part of antenna module 197.

[0039] According to various embodiments, antenna module 197 may form a millimeter wave antenna module. According to embodiments, the millimeter wave antenna module may include a printed circuit board, a radio frequency integrated circuit (RFIC), and multiple antennas (e.g., array antennas). The RFIC is disposed on or adjacent to a first surface (e.g., the bottom surface) of the printed circuit board and is capable of supporting a designated high-frequency band (e.g., the millimeter wave band). The multiple antennas are disposed on or adjacent to a second surface (e.g., the top surface or a side surface) of the printed circuit board and are capable of transmitting or receiving signals in the designated high-frequency band.

[0040] At least some of the above components may be connected to each other via an inter-peripheral communication scheme (e.g., a bus, general purpose input output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and communicatively transfer signals (e.g., commands or data) therebetween.

[0041] According to an embodiment, commands or data may be transmitted or received between the electronic device 101 and the external electronic device 104 via the server 108 connected to the second network 199. Each of the electronic device 102 or the electronic device 104 may be a device of the same type as the electronic device 101, or a device of a different type than the electronic device 101. According to an embodiment, all or some operations to be executed on the electronic device 101 may be executed on one or more of the external electronic device 102, the external electronic device 104, or the server 108. For example, if the electronic device 101 should automatically execute a function or service or should execute a function or service in response to a request from a user or another device, the electronic device 101 may request the one or more external electronic devices to execute at least part of the function or service instead of executing the function or service, or the electronic device 101 may request the one or more external electronic devices to execute at least part of the function or service in addition to executing the function or service. The one or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or execute another function or service related to the request, and transmit the results of the execution to the electronic device 101. The electronic device 101 may provide the results as at least a partial response to the request, either with or without further processing. To this end, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technologies may be used, for example. Electronic device 101 may use distributed computing or mobile edge computing to provide ultra-low latency services. In another embodiment, the external electronic device 104 may include an Internet of Things (IoT) device. The server 108 may be an intelligent server that utilizes machine learning and / or neural networks. Depending on the embodiment, the external electronic device 104 or the server 108 may be included in the second network 199. The electronic device 101 may be used for intelligent services based on 5G communication technology or IoT-related technologies (e.g., smart homes, smart cities, smart cars, or healthcare).

[0042] Figure 2 FIG2 is a block diagram 200 illustrating the power management module 188 and the battery 189 according to various embodiments. Figure 2The power management module 188 may include a charging circuit 210, a power conditioner 220, or a power meter 230. The charging circuit 210 may charge the battery 189 using power supplied from an external power source outside the electronic device 101. Depending on an embodiment, the charging circuit 210 may select a charging scheme (e.g., normal charging or fast charging) based at least in part on the type of external power source (e.g., a power outlet, USB, or wireless charging), the amount of power supplyable from the external power source (e.g., approximately 20 watts or greater), or the properties of the battery 189, and may charge the battery 189 using the selected charging scheme. The external power source may be connected to the electronic device 101, for example, directly via the connection terminal 178 or wirelessly via the antenna module 197.

[0043] The power regulator 220 can generate a variety of power with different voltage levels or current levels by regulating the voltage level or current level of the power supplied from the external power source or battery 189. The power regulator 220 can regulate the voltage level or current level of the power supplied from the external power source or battery 189 to different voltage levels or current levels suitable for each of the components included in the electronic device 101. Depending on the embodiment, the power regulator 220 can be implemented in the form of a low dropout (LDO) regulator or a switching regulator. The power meter 230 can measure usage status information about the battery 189 (e.g., the capacity of the battery 189, the number of times it has been charged or discharged, the voltage, or the temperature).

[0044] The power management module 188 can use, for example, the charging circuit 210, the power conditioner 220, or the power meter 230 to determine charging status information related to the charging of the battery 189 (e.g., lifespan, overvoltage, undervoltage, overcurrent, overcharge, overdischarge, overheating, short circuit, or expansion) based at least in part on the measured usage status information about the battery 189. The power management module 188 can determine whether the status of the battery 189 is normal or abnormal based at least in part on the determined charging status information. If the status of the battery 189 is determined to be abnormal, the power management module 188 can adjust the charging of the battery 189 (e.g., reduce the charging current or voltage, or stop charging). Depending on the embodiment, at least some of the functions of the power management module 188 can be performed by an external control device (e.g., the processor 120).

[0045] According to an embodiment, the battery 189 may include a battery protection circuit 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 damage to the battery 189. Additionally or alternatively, the battery protection circuit 240 may be configured as at least a portion of a battery management system (BMS) capable of performing various functions including battery balancing, measuring battery capacity, counting the number of charges or discharges, measuring temperature, or measuring voltage.

[0046] Depending on the embodiment, at least a portion of the charge state information or usage state information about the battery 189 may be measured using a corresponding sensor (e.g., a temperature sensor) in the sensor module 176, the power meter 230, or the power management module 188. Depending on the embodiment, the corresponding sensor (e.g., a temperature sensor) in the sensor module 176 may be included as part of the battery protection circuit 240, or may be provided near the battery 189 as a separate device.

[0047] Figure 3A The operation of charging an electronic device by a wireless charging device according to various embodiments of the present disclosure is schematically illustrated.

[0048] exist Figure 3A In the embodiment of the present disclosure, the wireless charging device 301 (eg, a wireless charging transmitter) may transmit wireless power to charge the electronic device 101 (eg, a wireless charging receiver).

[0049] According to an embodiment, when the battery of the electronic device 101 (e.g., Figure 1 When the battery 189 of the electronic device 101 is in a discharged state, or when the amount of available power is below a specified level, the wireless charging device 301 may transmit wireless power to charge the battery 189 of the electronic device 101 .

[0050] According to an embodiment, the electronic device 101 may include at least one of a smart phone, a wearable device (e.g., a watch and / or augmented reality (AR) glasses), or a wireless headset. The wireless charging device 301 may be a device that is the same as or similar to the electronic device 101. For example, the wireless charging device 301 may include a wireless charging pad or a smart phone. The wireless charging device 301 may be connected to a wireless charging pad or a smart phone. Figure 1 The wireless charging device 301 may include at least one of the components of the electronic device 101.

[0051] According to an embodiment, the wireless charging device 301 may detect that the electronic device 101 is placed on (e.g., adjacent to or in contact with) the top of the housing 304 when the wireless charging device 301 is in a standby state for charging the electronic device 101. For example, the top of the housing 304 of the wireless charging device 301 may refer to a portion of the housing 304 that is in contact with the coil for wireless charging (e.g., Figure 3B A surface adjacent to the power transmitting coil 311 k in the wireless charging module or a surface located in the magnetic force transmission direction of the coil for wireless charging.

[0052] According to an embodiment, the wireless charging device 301 may periodically or at designated times transmit a first ping signal (e.g., an analog ping signal, a Qping signal, or a digital ping signal) via the wireless charging coil. The first ping signal may be used to identify whether the electronic device 101 is adjacent to or in contact with the wireless charging device 301. In response to the first ping signal transmitted from the wireless charging device 301, the electronic device 101 may transmit a feedback signal (e.g., a response signal, identification information, configuration information, and / or a signal strength packet (SSP) signal) to the wireless charging device 301. The Qping signal may be an analog ping signal and may be used to detect changes in a signal (e.g., at least one of current, voltage, or frequency) applied to the coil of the wireless charging device 301 to identify the degree of resonance point matching of the coils.

[0053] According to an embodiment, the wireless charging device 301 may identify the presence or absence of an object (e.g., metal) placed on top of the housing 304 of the wireless charging device 301 based on a first ping signal to determine whether the electronic device 101 is placed on top of the housing 304. For example, the wireless charging device 301 may identify a change in power (e.g., current or voltage) measured during transmission of the first ping signal and, based on the identified change in power, identify whether the electronic device 101 has been placed (e.g., is present). Upon identifying the presence of the electronic device 101, the wireless charging device 301 may adjust at least some of the multiple parameters associated with the first ping signal.

[0054] According to an embodiment, a guide (eg, an indicator) for a position (eg, a position of a coil or a chargeable position) where the electronic device 101 should be placed may be displayed on the top of the housing 304 of the wireless charging device 301 .

[0055] Figure 3B A wireless charging environment 300 of a wireless charging device and an electronic device according to an embodiment of the present disclosure is schematically shown.

[0056] According to an embodiment, when the electronic device 101 is placed on top of the housing 304, the wireless charging device 301 according to various embodiments of the present disclosure can wirelessly transmit power to charge the battery 321e (eg, Figure 1 The battery 189 in the battery is charged.

[0057] According to an embodiment, the wireless charging device 301 may include a power transmitter 311 , a control circuit 312 , a communication circuit 313 and / or a sensing circuit 314 .

[0058] According to an embodiment, the power transmitter 311 may receive power from an external power source (eg, a commercial power source, a secondary battery device, a laptop computer, a desktop computer, or a smart phone).

[0059] According to various embodiments, the power transmitter 311 may include a power adapter 311 a , a power generating circuit 311 b , a matching circuit 311 c , and a power transmitting coil 311 k .

[0060] According to an embodiment, the power adapter 311a can convert the voltage of power input from an external power source (e.g., a travel adapter (TA)). The power generation circuit 311b can generate the power required for power transmission from the converted voltage. The matching circuit 311c can maximize the efficiency between the power transmission coil 311k and the power reception coil 321k of the electronic device 101.

[0061] According to various embodiments, when wireless power is transmitted to a plurality of electronic devices 101 , the power transmitter 311 may include at least one of a plurality of power adapters 311 a , power generating circuits 311 b , matching circuits 311 c , or power transmitting coils 311 k .

[0062] Depending on the embodiment, the power transmission coil 311k may include multiple coils grouped in the same layer and / or different layers. The wireless charging device 301 may select some of the multiple coils arranged in the same layer and / or different layers to charge the electronic device 101. The power transmission coil 311k may be provided on a printed circuit board. The power transmission coil 311k may be formed by winding at least once on the printed circuit board.

[0063] According to an embodiment, the control circuit 312 may perform overall control for transmitting power via the wireless charging device 301. The control circuit 312 may be operably connected to the power transmitter 311, the communication circuit 313, and the sensing circuit 314. The control circuit 312 may generate various messages required for wireless power transmission and transmit these messages to the communication circuit 313. Based on information received from the electronic device 101 (e.g., a wireless charging receiver) via the communication circuit 313, the control circuit 312 may calculate the power (or amount of power) to be transmitted to the electronic device 101. The control circuit 312 may control the power transmitter 311 so that the calculated power is transmitted to the electronic device 101 via the power transmission coil 311k.

[0064] According to an embodiment, the communication circuit 313 (eg, Figure 1 The communication module 190 in the electronic device 101 may include at least one of a first communication circuit 313a and a second communication circuit 313b. The first communication circuit 313a may communicate with the first communication circuit 323a of the electronic device 101 by using a frequency in a frequency band that is the same as or adjacent to the frequency used for wireless power transmission in the power transmission coil 311k (for example, in-band communication in which the power transmission coil 311k transmits a power signal or a communication signal). The second communication circuit 313b may communicate with the second communication circuit 323b of the electronic device 101 by using a frequency that is different from the frequency used for wireless power transmission in the power transmission coil 311k (for example, using Figure 1 The second communication circuit 313b may receive information about the charging state of the electronic device 101 (e.g., information about the rectified voltage (Vrec), information about the current flowing in the rectifier circuit (Iout), various packets, or messages) from the second communication circuit 323b of the electronic device 101 by using, for example, at least one of Bluetooth, Bluetooth Low Energy (BLE), Wi-Fi, or Near Field Communication (NFC). The second communication circuit 313b may also communicate with another electronic device that does not perform wireless charging (e.g., Figure 1 Another electronic device may include a display (e.g., Figure 1 Display module 160 in).

[0065] According to an embodiment, the sensing circuit 314 (eg, Figure 1 The sensor module 176 in the wireless charging apparatus 301 may include at least one sensor. The wireless charging apparatus 301 may use the at least one sensor to detect at least one state related to the wireless charging apparatus 301. For example, the sensing circuit 314 may include at least one of a temperature sensor, a motion sensor, a proximity sensor, or a current (or voltage) sensor.

[0066] According to various embodiments, a temperature sensor can detect the temperature of the wireless charging device 301. A motion sensor can detect the motion of the wireless charging device 301. A proximity sensor can detect a specific object (e.g., the electronic device 101 or a metal object other than the electronic device 101) approaching and / or in contact with the top of the housing 304 of the wireless charging device 301. A current (or voltage) sensor can detect the output signal state of the wireless charging device 301 (e.g., at least one of the current level, voltage level, or power level). The current (or voltage) sensor can measure signals for the power transmitter 311. For example, the current (or voltage) sensor can measure signals for at least some areas of the matching circuit 311c and the power generation circuit 311b. The current (or voltage) sensor may include circuitry for measuring signals for the front end of the power transmission coil 311k.

[0067] According to an embodiment, the sensing circuit 314 may detect the electronic device 101 (eg, wireless charging receiver) or an external object (eg, metal) other than the electronic device 101 placed on top of the housing 304 of the wireless charging device 301 (eg, wireless charging transmitter).

[0068] According to various embodiments, when the wireless charging device 301 is a mobile terminal (eg, the electronic device 101), the wireless charging device 301 may include a display (eg, Figure 1 The wireless charging device 301 may use the display to display various pieces of information related to wireless charging (e.g., information about the charging status of the wireless charging device 301, information about the charging status of the electronic device 101, information about detection of the electronic device 101, or information about detection of an external object (e.g., metal)).

[0069] refer to Figure 3B , when placed on top of the housing 304 of the wireless charging device 301 , the electronic device 101 (eg, a wireless charging receiver) according to various embodiments of the present disclosure can wirelessly receive power from the wireless charging device 301 .

[0070] According to an embodiment, the electronic device 101 may include a power receiver 321, a control circuit 322, a communication circuit 323, at least one sensor 324, and / or a display 325. In the description of the electronic device 101, descriptions of components corresponding to those of the wireless charging device 301 may be omitted.

[0071] According to an embodiment, the power receiver 321 may include a power receiving coil 321 k for receiving wireless power from the wireless charging device 301 (e.g., the power transmitting coil 311 k), a matching circuit 321 a, a rectifying circuit 321 b for rectifying the received AC power into DC, a regulating circuit 321 c for regulating the charging voltage, a switching circuit 321 d, and / or a battery 321 e (e.g., Figure 1 Battery 189 in the box).

[0072] According to an embodiment, the control circuit 322 may perform overall control related to wireless power reception (or wireless charging) of the electronic device 101. For example, the control circuit 322 may include Figure 1 The control circuit 322 may generate various messages related to wireless charging to send these messages to the communication circuit 323.

[0073] According to an embodiment, the communication circuit 323 (e.g., Figure 1 The communication module 190 in the wireless charging apparatus 301 may include at least one of a first communication circuit 323a and a second communication circuit 323b. The first communication circuit 323a may communicate with the first communication circuit 313a of the wireless charging apparatus 301 using the power receiving coil 321k. The second communication circuit 323b may communicate with the second communication circuit 313b of the wireless charging apparatus 301 using at least one of Bluetooth, Bluetooth Low Energy, Wi-Fi, and near-field communication.

[0074] According to an embodiment, the sensor 324 (e.g., Figure 1 The sensor module 176 in the image sensor may include at least one of a current (or voltage) sensor, a temperature sensor, a proximity sensor, a light sensor, or an acceleration sensor.

[0075] According to an embodiment, the display 325 (e.g., Figure 1 The display module 160 in the embodiment may display various pieces of information related to wireless power reception (or wireless charging).

[0076] According to an embodiment, when the wireless charging device 301 is an electronic device (eg, a smart phone) that is the same as or similar to the electronic device 101 , the wireless charging device 301 may include the same components as the electronic device 101 .

[0077] Figure 3C An operation of a wireless charging device detecting an object such as an electronic device according to various embodiments of the present disclosure is illustrated.

[0078] refer to Figure 3C, the wireless charging device 301 (eg, a wireless charging transmitter) according to various embodiments of the present disclosure may perform a function (eg, a Tx function) of wirelessly transmitting power to the electronic device 101 (eg, a wireless charging receiver).

[0079] According to an embodiment, when the electronic device 101 is placed on, for example, the top of the housing 304 , the wireless charging device 301 may detect and authenticate the electronic device 101 and transmit wireless power to the electronic device 101 .

[0080] According to an embodiment, the wireless charging device 301 may perform at least one of a ping operation 303, an identification and configuration operation 305, and a power transmission operation 307. The wireless charging device 301 may transmit at least one signal or data to the electronic device 101 or receive at least one signal or data from the electronic device 101 by using the ping operation 303, the identification and configuration operation 305, and the power transmission operation 307.

[0081] According to an embodiment, the control circuit of the wireless charging device 301 (eg, Figure 3B The control circuit 312 in the wireless charging device 301 may transmit a signal (e.g., a ping signal) at predetermined time intervals using the ping operation 303 to detect the presence of the electronic device 101 within a predetermined range. For example, the control circuit 312 in the wireless charging device 301 may transmit a first ping signal or a second ping signal to the electronic device 101. The transmission period of the first ping signal may be shorter than the transmission period of the second ping signal. The first ping signal may have a transmission period of approximately 0.1 to 10 ms. The second ping signal may have a transmission period of approximately 65 to 70 ms. The first ping signal may include an analog ping signal or a Qping signal. The second ping signal may include a digital ping signal. The transmission period of the first ping signal and the transmission period of the second ping signal are exemplary and may vary based on user settings of the wireless charging device 301 and / or the electronic device 101.

[0082] According to an embodiment, the wireless charging device 301 may receive a feedback signal (eg, a response signal, identification information, configuration information, and / or an SSP signal) in response to the first ping signal or the second ping signal from the electronic device 101 and detect the presence or absence of the electronic device 101 .

[0083] According to an embodiment, the wireless charging device 301 can use an analog ping signal as a first ping signal to detect, for example, a change in current in the power generating circuit 311b according to the type and position of a specific object (e.g., the electronic device 101 or a metal object other than the electronic device), thereby identifying whether the specific object is placed on top of the housing 304.

[0084] According to an embodiment, the wireless charging device 301 can use the Qping signal as the first ping signal to detect changes in the damping coefficient (e.g., Q value) and natural frequency of the power transmitting coil 311k according to the type and position of a specific object (e.g., the electronic device 101 or a metal object other than the electronic device), thereby identifying whether the specific object is placed on the top of the shell 304.

[0085] According to an embodiment, when the wireless charging apparatus 301 recognizes that a specific object (e.g., the electronic device 101) is placed on top of the housing 304 via the first ping signal, the wireless charging apparatus 301 may use a digital ping signal as a second ping signal to determine the type and location of the specific object placed on top of the housing 304. For example, when the wireless charging apparatus 301 transmits the digital ping signal as the second ping signal to the electronic device 101, a voltage equal to or higher than a specific value may be induced in the rectifier circuit 321b of the electronic device 101, and a signal strength packet (SSP) signal including information about the strength of the induced voltage (e.g., voltage value information) may be transmitted to the wireless charging apparatus 301. The wireless charging apparatus 301 may use the transmitted SSP signal to recognize the type and location of the electronic device 101 placed on top of the housing 304.

[0086] According to an embodiment, the control circuit 312 of the wireless charging device 301 may configure a plurality of parameters related to the transmission of the first ping signal or the second ping signal in the ping operation 303. For example, the control circuit 312 of the wireless charging device 301 may configure the frequency of the first ping signal or the second ping signal, the power applied to the power transmission circuit (e.g., Figure 3B The wireless charging apparatus 301 may include a plurality of parameters related to at least one of the voltage of the first ping signal or the second ping signal, or the transmission period of the first ping signal or the second ping signal, transmitted by the power transmitter 311 or the power transmitting coil 311k. In the initial configuration of the wireless charging apparatus 301, the plurality of parameters may be provided as default values.

[0087] According to an embodiment, the control circuit 312 of the wireless charging device 301 may determine whether a specific object (e.g., the electronic device 101) is present on top of the housing 304 of the wireless charging device 301 during the ping operation 303. The control circuit 312 of the wireless charging device 301 may transmit a ping signal based on a plurality of parameters related to the transmission of the first ping signal or the second ping signal during an operation interval (or a wireless charging standby state) related to the ping operation 303, and may identify electric energy (e.g., at least one of current and voltage) measured at the power transmitter 311 (or the power transmitting coil 311 k) in response to the ping signal transmission.

[0088] According to an embodiment, the control circuit 312 of the wireless charging device 301 can identify at least one of a relationship between a voltage measured at the power transmitter 311 (or the power transmitting coil 311 k) and a specified threshold voltage in response to the transmission of the first ping signal or the second ping signal, and a relationship between a current measured at the power transmitter 311 (or the power transmitting coil 311 k) and a specified threshold current, and determine whether an object is present on top of the wireless charging device 301 based on the identification result.

[0089] According to an embodiment, in response to the transmission of the first ping signal or the second ping signal, the control circuit 312 of the wireless charging device 301 can detect the state of an object (e.g., the type of the object, the size of the object, or the placement state of the object) present on top of the wireless charging device 301 or a change in the state of the object based on a change in electric energy (e.g., at least one of current and voltage) measured at the power transmitter 311 (or the power transmitting coil 311 k).

[0090] According to an embodiment, upon recognizing that a specific object (e.g., electronic device 101 or a metal object other than the electronic device) is placed on top of housing 304 of wireless charging device 301, control circuit 312 of wireless charging device 301 may change or adjust at least some of the multiple parameters associated with transmitting the first or second ping signal to suppress noise caused by the object (e.g., vibration of the object and / or noise in the audible frequency band caused by the vibration), the degree of heating of the object, or degradation of wireless charging device 301 caused by the object (e.g., heating of wireless charging device 301 due to inductive heating from the object). Control circuit 312 of wireless charging device 301 may also output a designated notification (e.g., light emission, vibration, or sound) to notify of the presence of the specific object.

[0091] According to an embodiment, when the electronic device 101 (eg, wireless charging receiver) is detected, the control circuit 312 of the wireless charging device 301 (eg, wireless charging receiver) may receive identification information and configuration information of the electronic device 101 in an identification and configuration operation 305 .

[0092] According to various embodiments, the identification information may include at least one piece of information for authenticating the electronic device 101 (eg, wireless communication ID of the electronic device 101). Figure 1 When the detected electronic device 101 matches the information stored in memory 130 (e.g., the wireless communication ID of the electronic device 101 authorized to share wireless power with the wireless charging device 301), the control circuit 312 of the wireless charging device 301 can determine that the detected electronic device 101 is a valid device. The configuration information may include various pieces of information required for the electronic device 101 to receive wireless power from the wireless charging device 301.

[0093] According to an embodiment, when the electronic device 101 is authenticated or selected based on the identification information and the configuration information, the control circuit 312 of the wireless charging device 301 may transmit wireless power to the electronic device 101 in a power transmission operation 307. In the power transmission operation 307, the control circuit 312 of the wireless charging device 301 may receive from the electronic device 101 at least one of the following: at least one control error packet (CEP) signal including information notifying the amount of power (or amount of power) required by the electronic device 101 for charging, and a receive power packet (RPP) signal including information on the amount of power (or amount of power) received by the electronic device 101. The control circuit 312 of the wireless charging device 301 may adjust the wireless power transmitted to the electronic device 101 based on at least one of the at least one CEP signal and the RPP signal.

[0094] According to an embodiment, the electronic device 101 may transmit at least one CEP signal and an RPP signal at designated intervals or when a specific event occurs, such as a state change of the electronic device 101. At least one CEP signal and an RRP signal may be transmitted at different intervals.

[0095] According to various embodiments, when the wireless charging device 301 includes multiple coils, the wireless charging device 301 may perform a ping operation 303, an identification and configuration operation 305, and a power transmission operation 307 through each of the multiple coils. Depending on the embodiment, the wireless charging device 301 may perform the ping operation 303 simultaneously through the multiple coils, or may perform the ping operation 303 through the multiple coils based on a specified pattern or sequence. Depending on the embodiment, when an electronic device (e.g., electronic device 101) is detected through the multiple coils, the wireless charging device 301 may perform the identification and configuration operation 305 through each of the coils through which the electronic device (e.g., electronic device 101) is detected, or may perform the identification and configuration operation 305 by detecting a coil above a specified threshold. Depending on the embodiment, in the power transmission operation 307, the wireless charging device 301 may transmit power to the electronic device (e.g., electronic device 101) through each of the multiple coils and receive feedback from the electronic device (e.g., electronic device 101).

[0096] Figure 4 Configurations of a wireless charging device and an electronic device according to various embodiments of the present disclosure are schematically illustrated.

[0097] exist Figure 4 In the description of the embodiments disclosed in Figures 1 to 3C Components that are substantially the same as those in the embodiments disclosed in the accompanying drawings are assigned the same reference numerals, and redundant descriptions of their functions may be omitted.

[0098] According to various embodiments, the wireless charging device 301 may include a power supply 411 , a first rectifier circuit 413 , a first converter 415 , an inverter 417 , a first impedance compensation circuit 419 , a power transmitting coil 311 k and / or a first coil 420 .

[0099] According to an embodiment, the wireless charging device 301 may charge the battery 321 e of the electronic device 101 via the power transmission coil 311 k .

[0100] According to an embodiment, the power supply 411 (eg, Figure 3B The power adapter 311a in FIG. 4 can supply power required by the wireless charging device 301. The power supply 411 can supply power to the wireless charging device 301 via a travel adapter (TA) or a USB. The power supply 411 may include an external connection terminal capable of USB charging or on-the-go (OTG) power supply.

[0101] According to an embodiment, the first rectifier circuit 413 may convert an AC current received via the power source 411 into a DC current. For example, the first rectifier circuit 413 may rectify the AC waveform power received via the power source 411 into a DC waveform power. For example, the first rectifier circuit 413 may include a bridge diode.

[0102] According to an embodiment, the first converter 415 can convert the power rectified by the first rectifier circuit 413 to a configured gain. The first converter 415 can convert the rectified power so that the voltage at the output terminal is a specific voltage. The first converter 415 can transmit the converted power to the power transmission coil 311k and the first coil 420. The first coil 420 can receive the power converted by the first converter 415 and can operate as an electromagnet. For example, the first coil 420 can form a magnetic field in a first direction 401 (e.g., the z-axis direction).

[0103] According to various embodiments, the first converter 415 may include a DC-DC converter capable of converting to a voltage used by the wireless charging apparatus 301. For example, the first converter 415 may step down or step up the voltage used by the wireless charging apparatus 301.

[0104] According to an embodiment, the inverter 417 may convert the direct current received through the first converter 415 into an alternating current. For example, the inverter 417 may invert the power of a direct current waveform received through the first converter 415 into an alternating current waveform.

[0105] According to an embodiment, the first impedance compensation circuit 419 may compensate for the impedance of the AC power transmitted through the inverter 417. The first impedance compensation circuit 419 may transmit the impedance-compensated AC power to the power transmitting coil 311k.

[0106] According to an embodiment, the power transmission coil 311k can wirelessly transmit power to the power receiving coil 321k of the electronic device 101. The power transmission coil 311k may include a plurality of coils grouped on the same layer and / or on different layers. The wireless charging device 301 may select some of the plurality of coils provided on the same layer and / or on different layers to charge the battery 321e of the electronic device 101. The power transmission coil 311k may be provided on a printed circuit board (e.g., Figure 5 The printed circuit board 510 or Figure 6 The printed circuit board 110 is wound at least once to form the printed circuit board 110.

[0107] According to an embodiment, the first coil 420 can receive power transmitted by the first converter 415 and can operate as an electromagnet. For example, the first coil 420 can be disposed inside the power transmitting coil 311k. For example, the first coil 420 can form a magnetic field in the first direction 401 (e.g., the z-axis direction).

[0108] According to various embodiments, the electronic device 101 may include a power receiving coil 321 k , a second coil 440 , a second impedance compensation circuit 431 , a second rectification circuit 433 , a second converter 435 , and / or a battery 321 e .

[0109] According to an embodiment, the electronic device 101 may receive power from the wireless charging device 301 via the power receiving coil 321 k and charge the battery 321 e .

[0110] According to an embodiment, the power receiving coil 321k can receive wireless power from the power transmitting coil 311k of the wireless charging device 301. When receiving a magnetic field via the power transmitting coil 311k of the wireless charging device 301, the power receiving coil 321k can generate an AC current. The power receiving coil 321k can be connected to a printed circuit board (e.g., Figure 5 The printed circuit board 510 or Figure 6 The printed circuit board 510 is wound at least once to form the printed circuit board 510.

[0111] According to an embodiment, the second coil 440 can receive power transmitted by the second rectifier circuit 433 and operate as an electromagnet. For example, the second coil 440 can be disposed inside the power receiving coil 321k. For example, the second coil 440 can form a magnetic field in the second direction 402 (e.g., the −z-axis direction).

[0112] According to various embodiments, the first coil 420 can form a magnetic field in a first direction 401 (e.g., the z-axis direction) and can operate as an N-pole. For example, the second coil 440 can form a magnetic field in a second direction 402 (e.g., the -z-axis direction) and can operate as an S-pole. For example, when the first coil 420 and the second coil 440 operate as electromagnets, the polarities of the first coil 420 and the second coil 440 can be different. When the first coil 420 and the second coil 440 operate as electromagnets, the polarities of the first coil 420 and the second coil 440 can be opposite. The first coil 420 of the wireless charging device 301 and the second coil 440 of the electronic device 101 can operate as electromagnets with different polarities, thereby enhancing adhesion.

[0113] According to various embodiments, the first coil 420 of the wireless charging device 301 and the second coil 440 of the electronic device 101 may be matched so that the power transmitting coil 311 k and the power receiving coil 321 k are aligned, thereby improving wireless charging efficiency.

[0114] According to an embodiment, the second impedance compensation circuit 431 may compensate for the impedance of wireless power (eg, AC power) received via the power receiving coil 321 k .

[0115] According to an embodiment, the second rectifier circuit 433 may convert the AC current transmitted by the second impedance compensation circuit 431 into a DC current. The second rectifier circuit 433 may transmit power input from the battery 321e to the second coil 440. The second coil 440 may receive power via the second rectifier circuit 433 and may operate as an electromagnet. For example, the second coil 440 may generate a magnetic field in the second direction 402 (e.g., the −z-axis direction).

[0116] According to an embodiment, the second converter 435 may convert the power rectified by the second rectifier circuit 433 to a configured gain. The second converter 435 may convert the rectified power so that the voltage at the output terminal is charged to the battery 321e. The second converter 435 may transmit the converted power to the battery 321e and may charge the battery 321e.

[0117] According to various embodiments, the second converter 435 may include a DC-DC converter capable of converting to a voltage used by the electronic device 101. For example, the second converter 435 may step down or step up a voltage used by the electronic device 101.

[0118] According to an embodiment, the battery 321 e may store and charge the converted power input via the second converter 435 .

[0119] Figure 5 The configuration of the first coil or the second coil according to an embodiment of the present disclosure is schematically shown.

[0120] According to the embodiment, Figure 5 As shown in Figure 4 The first coil 420 and the second coil 440 shown in FIG may include substantially identically formed coil patterns. For example, the first coil 420 and the second coil 440 may include substantially identical coil patterns and may differ only in the direction of the magnetic field.

[0121] According to an embodiment, the first coil 420 or the second coil 440 may include, for example, a first coil pattern 501 , a second coil pattern 503 , a third coil pattern 505 , a fourth coil pattern 507 and / or a fifth coil pattern 509 disposed on a printed circuit board 510 .

[0122] According to various embodiments, as long as the first coil 420 or the second coil 440 can operate as an electromagnet, the first coil 420 or the second coil 440 may include only at least one coil pattern from among the first to fifth coil patterns 501 to 509 .

[0123] According to an embodiment, printed circuit board 510 may include a structure in which a plurality of printed circuit boards (PCBs) are stacked. Printed circuit board 510 may include an interposer structure. Printed circuit board 510 may include at least one through-hole. For example, printed circuit board 510 may take the form of a flexible printed circuit board (FPCB) and / or a rigid printed circuit board (PCB).

[0124] According to various embodiments, the first coil pattern 501 , the second coil pattern 503 , the third coil pattern 505 , the fourth coil pattern 507 , and / or the fifth coil pattern 509 may be disposed on a printed circuit board 510 .

[0125] According to an embodiment, the first coil pattern 501 can be formed by winding at least once on the printed circuit board 510. For example, the first coil pattern 501 can be provided on one side of the printed circuit board 510 (e.g., in the -x-axis direction) and formed by winding the coil at least once in an upward direction (e.g., in the z-axis direction) of the printed circuit board 510. For example, the first coil pattern 501 can be formed in a three-dimensional structure. For example, the first coil pattern 501 can generate a magnetic field toward the first side (e.g., in the x-axis direction).

[0126] According to an embodiment, the second coil pattern 503 can be formed by winding the coil at least once on the printed circuit board 510. For example, the second coil pattern 503 can be arranged on a first side (e.g., in the x-axis direction) of the first coil pattern 501. The second coil pattern 503 can be formed by winding the coil at least once along a first side (e.g., a plane in the x-axis direction) of the printed circuit board 510. For example, the second coil pattern 503 can be formed in a planar structure. For example, the second coil pattern 503 can form a magnetic field in a first direction (e.g., in the z-axis direction).

[0127] According to an embodiment, the third coil pattern 505 can be formed by winding at least once on the printed circuit board 510. For example, the third coil pattern 505 can be arranged on a first side (e.g., in the x-axis direction) of the second coil pattern 503. The third coil pattern 503 can be formed by winding the coil at least once in an upward direction (e.g., in the z-axis direction) on the printed circuit board 510. For example, the third coil pattern 503 can be formed in a three-dimensional structure. For example, the third coil pattern 503 can form a magnetic field toward the second side (e.g., in the -x-axis direction).

[0128] According to an embodiment, the fourth coil pattern 507 can be formed by winding at least once on the printed circuit board 510. For example, the fourth coil pattern 507 can be arranged on a first side (e.g., in the x-axis direction) of the third coil pattern 505. The fourth coil pattern 507 can be formed by winding a coil at least once along the first side (e.g., in the x-axis direction) of the printed circuit board 510. For example, the fourth coil pattern 507 can be formed in a planar structure. For example, the fourth coil pattern 507 can form a magnetic field in the second direction (e.g., the -z-axis direction).

[0129] According to an embodiment, the fifth coil pattern 509 can be formed by winding the coil at least once on the printed circuit board 510. For example, the fifth coil pattern 509 can be arranged on a first side (e.g., in the x-axis direction) of the fourth coil pattern 507. The fifth coil pattern 509 can be formed by winding the coil at least once in an upward direction (e.g., in the z-axis direction) on the printed circuit board 510. For example, the fifth coil pattern 509 can be formed in a three-dimensional structure. For example, the fifth coil pattern 509 can form a magnetic field toward the first side (e.g., in the x-axis direction).

[0130] According to various embodiments, the directions of the magnetic fields of the first coil pattern 501 and the third coil pattern 505 may be different from each other (e.g., the x-axis direction and the −x-axis direction). The directions of the magnetic fields of the first coil pattern 501 and the fifth coil pattern 509 may be substantially the same as each other (e.g., the x-axis direction). The directions of the magnetic fields of the second coil pattern 503 and the fourth coil pattern 507 may be different from each other (e.g., the z-axis direction and the −z-axis direction).

[0131] According to various embodiments, when the magnetic field of the first coil 420 is formed in a first direction 401 (e.g., z-axis direction), the magnetic field of the second coil 440 may be formed in a second direction 402 (e.g., −z-axis direction) opposite to the first direction 401 (e.g., z-axis direction).

[0132] Figure 6 The configuration of the first coil or the second coil according to various embodiments of the present disclosure is schematically shown.

[0133] According to the embodiment, Figure 6 As shown in Figure 4 The first coil 420 and the second coil 440 shown in FIG may include substantially identically formed coil patterns. For example, the first coil 420 and the second coil 440 may include substantially identical coil patterns and may differ only in the direction of the magnetic field.

[0134] According to an embodiment, the first coil 420 or the second coil 440 may include, for example, a first coil pattern 601 , a second coil pattern 603 , a third coil pattern 505 , a fourth coil pattern 607 and / or a fifth coil pattern 609 disposed on the printed circuit board 510 .

[0135] According to various embodiments, as long as the first coil 420 or the second coil 440 can operate as an electromagnet, the first coil 420 or the second coil 440 may include only at least one coil pattern from among the first to fifth coil patterns 601 to 509 .

[0136] According to an embodiment, printed circuit board 510 may include a structure in which a plurality of printed circuit boards (PCBs) are stacked. Printed circuit board 510 may include an interposer structure. Printed circuit board 510 may include at least one through-hole. For example, printed circuit board 510 may include a flexible printed circuit board (FPCB) and / or a rigid printed circuit board (PCB).

[0137] According to various embodiments, the first coil pattern 601 , the second coil pattern 603 , the third coil pattern 605 , the fourth coil pattern 607 , and / or the fifth coil pattern 609 may be disposed on the printed circuit board 510 .

[0138] According to an embodiment, the first coil pattern 601 can be formed by winding at least once around the printed circuit board 510. For example, the first coil pattern 601 can be arranged at the center of the printed circuit board 510. For example, the first coil pattern 601 can be formed in a planar structure. For example, the first coil pattern 601 can form a magnetic field in a first direction (e.g., the z-axis direction). The first coil pattern 601 can be surrounded by the second coil pattern 603, the third coil pattern 605, the fourth coil pattern 607, and the fifth coil pattern 609.

[0139] According to an embodiment, the second coil pattern 603 may be disposed on a first side (e.g., in the y-axis direction) of the first coil pattern 601. The second coil pattern 603 may be formed by winding a coil at least once in an upward direction (e.g., in the z-axis direction) on the printed circuit board 510. For example, the second coil pattern 603 may be formed in a three-dimensional structure. For example, the second coil pattern 603 may generate a magnetic field directed toward the first coil pattern 601 (e.g., in the -y-axis direction).

[0140] According to an embodiment, the third coil pattern 605 may be disposed on a second side (e.g., in the x-axis direction) of the first coil pattern 601. The third coil pattern 605 may be formed by winding a coil at least once in an upward direction (e.g., in the z-axis direction) on the printed circuit board 510. For example, the third coil pattern 605 may be formed in a three-dimensional structure. For example, the third coil pattern 605 may generate a magnetic field directed toward the first coil pattern 601 (e.g., in the -x-axis direction).

[0141] According to an embodiment, the fourth coil pattern 607 may be disposed on a third side (e.g., in the −y-axis direction) of the first coil pattern 601. The fourth coil pattern 607 may be formed by winding a coil at least once in an upward direction (e.g., in the z-axis direction) on the printed circuit board 510. For example, the fourth coil pattern 607 may be formed in a three-dimensional structure. For example, the fourth coil pattern 607 may generate a magnetic field directed toward the first coil pattern 601 (e.g., in the y-axis direction).

[0142] According to an embodiment, the fifth coil pattern 609 may be disposed on a fourth side (e.g., in the −x-axis direction) of the first coil pattern 601. The fifth coil pattern 609 may be formed by winding a coil at least once in an upward direction (e.g., in the z-axis direction) on the printed circuit board 510. For example, the fifth coil pattern 609 may be formed in a three-dimensional structure. For example, the fifth coil pattern 609 may generate a magnetic field directed toward the first coil pattern 601 (e.g., in the x-axis direction).

[0143] According to various embodiments, magnetic fields of the second to fifth coil patterns 603 to 609 may be formed to face the first coil pattern 601 disposed approximately at the center of the printed circuit board 510. The first coil pattern 601, the second coil pattern 603, the third coil pattern 605, the fourth coil pattern 607, and the fifth coil pattern 609 may be formed in a three-dimensional structure and / or a planar structure.

[0144] According to various embodiments, when the magnetic field of the first coil 420 provided in the wireless charging device 301 is formed in a first direction 401 (e.g., the z-axis direction), the magnetic field of the second coil 440 provided in the electronic device 101 may be formed in a second direction 402 (e.g., the −z-axis direction) opposite to the first direction 401 (e.g., the z-axis direction).

[0145] According to an embodiment of the present disclosure, the wireless charging device 301 may include a power transmitting coil 311 k configured to wirelessly transmit power to the electronic device 101 and a first coil 420 disposed inside the power transmitting coil 311 k and configured to form a magnetic field in a first direction.

[0146] According to an embodiment, the electronic device 101 may include a power receiving coil 321k configured to wirelessly receive power from the power transmitting coil 311k and a second coil 440 arranged inside the power receiving coil 321k and configured to form a magnetic field in a second direction opposite to the first direction.

[0147] According to an embodiment, the power transmitting coil 311 k and the power receiving coil 321 k may be configured to be aligned when the first coil 420 and the second coil 440 are matched.

[0148] According to an embodiment, the first coil 420 and the second coil 440 may be configured to operate as electromagnets.

[0149] According to an embodiment, the first coil 420 and the second coil 440 may be configured to have opposite polarities.

[0150] According to an embodiment, the first coil 420 may include a first coil pattern 501 disposed on a printed circuit board 510 and a second coil pattern 503 disposed at one side of the first coil pattern 501 .

[0151] According to an embodiment, the first coil pattern 501 may include a coil wound at least once in an upward direction of the printed circuit board 510 , and the second coil pattern 503 may include a coil wound at least once on a plane of the printed circuit board 510 .

[0152] According to an embodiment, magnetic fields of the first coil pattern 501 and the second coil pattern 503 may be formed to face different directions.

[0153] According to an embodiment, the second coil 440 may include a first coil pattern 501 disposed on a printed circuit board 510 and a second coil pattern 503 disposed at one side of the first coil pattern 501 .

[0154] According to an embodiment, the first coil pattern 501 may include a coil wound at least once in an upward direction of the printed circuit board 510 , and the second coil pattern 503 may include a coil wound at least once on a plane of the printed circuit board 510 .

[0155] According to an embodiment, magnetic fields of the first coil pattern 501 and the second coil pattern 503 may be formed to face different directions.

[0156] According to an embodiment, the first coil 420 may include a first coil pattern 601 arranged at the center of the printed circuit board 510, a second coil pattern 603 arranged at a first side of the first coil pattern 601, a third coil pattern 605 arranged at a second side of the first coil pattern 601, a fourth coil pattern 607 arranged at a third side of the first coil pattern 601, and a fifth coil pattern 609 arranged at a fourth side of the first coil pattern 601.

[0157] According to an embodiment, the first coil pattern 601 can be formed in a planar structure having a coil wound at least once, and at least one of the second coil pattern 603, the third coil pattern 605, the fourth coil pattern 607 and the fifth coil pattern 609 can be formed in a three-dimensional structure having a coil wound at least once.

[0158] According to an embodiment, magnetic fields of the first coil pattern 601 , the second coil pattern 603 , the third coil pattern 605 , the fourth coil pattern 607 , and the fifth coil pattern 609 may be formed to face different directions.

[0159] According to an embodiment, the wireless charging device 301 may include a first rectifier circuit 413 configured to convert an alternating current received from a power source 411 into a direct current and a first converter 415 configured to convert the power rectified by the first rectifier circuit 413 and send the converted power to the power transmitting coil 311k and the first coil 420.

[0160] According to an embodiment, the wireless charging device 301 may also include an inverter 417 configured to convert a direct current received via the first converter 415 into an alternating current and a first impedance compensation circuit 419 configured to compensate for the impedance of the alternating current power transmitted via the inverter 417 and transmit the impedance-compensated alternating current power to the power transmitting coil 311k.

[0161] According to an embodiment, the electronic device 101 may include a second impedance compensation circuit 431 configured to compensate for the impedance of the wireless power received via the power receiving coil 321k, a second rectifier circuit 433 configured to convert the alternating current sent via the second impedance compensation circuit 431 into a direct current, and a second converter 435 configured to convert the power rectified by the second rectifier circuit 433 and send the converted power to the battery 321e.

[0162] The electronic device according to various embodiments may be one of various types of electronic devices. 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 household appliance. According to embodiments of the present disclosure, the electronic device is not limited to those described above.

[0163] It should be understood that the various embodiments of the present disclosure and the terms used therein are not intended to limit the technical features set forth herein to specific embodiments, but rather include various changes, equivalents, or alternative forms for the corresponding embodiments. For the description of the accompanying drawings, similar reference numerals may be used to refer to similar or related elements. It will be understood that nouns in the singular form corresponding to a term may include one or more things, unless the relevant context clearly indicates otherwise. As used herein, each of phrases such as "A or B," "at least one of A and B," "at least one of A or B," "A, B or C," "at least one of A, B and C," and "at least one of A, B or C" may include any one or all possible combinations of the items listed together with the corresponding phrase in the multiple phrases. As used herein, terms such as "first" and "second" or "first" and "second" may be used to simply distinguish a corresponding component from another component and do not limit the components in other aspects (e.g., importance or order). It will be understood that if an element (e.g., a first element) is referred to as being “coupled with another element (e.g., a second element)”, “coupled to another element (e.g., a second element)”, “connected with another element (e.g., a second element)”, or “connected to another element (e.g., a second element)”, with or without the terms “operably” or “communicatively” being used, it means that the element may be directly (e.g., wired) connected to the other element, wirelessly connected to the other element, or connected to the other element via a third element.

[0164] As used in connection with various embodiments of the present disclosure, the term "module" may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with other terms (e.g., "logic," "logic block," "portion," or "circuit"). A module may be a single integrated component adapted to perform one or more functions, or the smallest unit or portion of the single integrated component. For example, depending on the embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0165] The various embodiments described herein can 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) that is readable by a machine (e.g., electronic device 101). For example, under the control of a processor, a processor (e.g., processor 120) of the machine (e.g., electronic device 101) can invoke and execute at least one of the one or more instructions stored in the storage medium, with or without the use of one or more other components. This enables the machine to operate to perform at least one function in accordance with the invoked at least one instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. The term "non-transitory" simply means that the storage medium is a tangible device and does not include signals (e.g., electromagnetic waves), but does not distinguish between data being semi-permanently stored in the storage medium and data being temporarily stored in the storage medium.

[0166] According to various embodiments, each of the aforementioned components (e.g., a module or program) may include a single entity or multiple entities, and some of the multiple entities may be separately provided in different components. According to various embodiments, one or more of the aforementioned components may be omitted, or one or more additional components may be added. Alternatively or additionally, multiple components (e.g., modules or programs) may be integrated into a single component. In such a case, according to various embodiments, the integrated component may still perform the one or more functions of each of the multiple components in the same or similar manner as the corresponding one of the multiple components performed the one or more functions prior to integration. According to various embodiments, the operations performed by a module, program, or another component may be performed sequentially, in parallel, repeatedly, or in a heuristic manner, or one or more of the operations may be performed in a different order or omitted, or one or more additional operations may be added.

[0167] Hereinabove, although the present disclosure has been described with reference to various embodiments thereof, it is obvious to those skilled in the art that modifications and changes can be made thereto without departing from the technical scope of the present disclosure.

Claims

1. An electronic device (101), comprising a wireless charging device (301), in, The wireless charging device (301) comprises: a power transmitting coil (311k) configured to wirelessly transmit power to the electronic device (101); and A first coil (420) is provided inside the power transmitting coil (311k) and is configured to form a magnetic field in a first direction, Wherein, the electronic device (101) comprises: a power receiving coil (321k) configured to wirelessly receive power from the power transmitting coil (311k); and a second coil (440) disposed inside the power receiving coil (321k) and configured to form a magnetic field in a second direction opposite to the first direction, and The first coil (420) and the second coil (440) are configured to match so that the power transmitting coil (311k) and the power receiving coil (321k) are aligned.

2. The electronic device according to claim 1, wherein The first coil (420) and the second coil (440) are configured to operate as electromagnets.

3. The electronic device according to claim 1 or 2, wherein: The first coil (420) and the second coil (440) are configured to have opposite polarities.

4. The electronic device according to any one of claims 1 to 3, wherein: The first coil (420) includes a first coil pattern (501) provided on a printed circuit board (510) and a second coil pattern (503) provided at one side of the first coil pattern (501).

5. The electronic device according to claim 4, wherein: The first coil pattern (501) includes a coil wound at least once in an upward direction of the printed circuit board (510), and The second coil pattern (503) includes a coil wound at least once on a plane of the printed circuit board (510). The electronic device according to claim 5 , wherein: The magnetic fields of the first coil pattern (501) and the second coil pattern (503) are configured to face in different directions.

7. The electronic device according to any one of claims 1 to 6, wherein: The second coil (440) includes a first coil pattern (501) provided on a printed circuit board (510) and a second coil pattern (503) provided at one side of the first coil pattern (501).

8. The electronic device according to claim 7, wherein: The first coil pattern (501) includes a coil wound at least once in an upward direction of the printed circuit board (510), and The second coil pattern (503) includes a coil wound at least once on a plane of the printed circuit board (510).

9. The electronic device according to claim 8, wherein: The magnetic fields of the first coil pattern (501) and the second coil pattern (503) are configured to face in different directions.

10. The electronic device according to any one of claims 1 to 3, wherein: The first coil (420) comprises: A first coil pattern (601) is arranged at the center of the printed circuit board (510); a second coil pattern (603) disposed at a first side of the first coil pattern (601); a third coil pattern (605) arranged at a second side of the first coil pattern (601); a fourth coil pattern (607) disposed at a third side of the first coil pattern (601); and The fifth coil pattern (609) is arranged at a fourth side of the first coil pattern (601). The electronic device according to claim 10 , wherein: The first coil pattern (601) is formed in a planar structure having a coil wound at least once, and At least one of the second coil pattern (603), the third coil pattern (605), the fourth coil pattern (607) and the fifth coil pattern (609) is formed in a three-dimensional structure having a coil wound at least once.

12. The electronic device according to claim 11, wherein: The magnetic fields of the first coil pattern (601), the second coil pattern (603), the third coil pattern (605), the fourth coil pattern (607) and the fifth coil pattern (609) are configured to face different directions.

13. The electronic device according to any one of claims 1 to 3, wherein: The wireless charging device (301) comprises: A first rectifier circuit (413) configured to convert an alternating current received from a power source (411) into a direct current; and A first converter (415) is configured to convert the power rectified by the first rectifying circuit (413) and transmit the converted power to the power transmitting coil (311k) and the first coil (420).

14. The electronic device according to claim 13, wherein: The wireless charging device (301) further includes: an inverter (417) configured to convert a direct current received via the first converter (415) into an alternating current; and A first impedance compensation circuit (419) is configured to compensate for the impedance of the AC power transmitted via the inverter (417) and transmit the impedance-compensated AC power to the power transmitting coil (311k).

15. The electronic device according to any one of claims 1 to 3, wherein: The electronic device (101) comprises: a second impedance compensation current (431) configured to compensate for the impedance of the wireless power received via the power receiving coil (321k); A second rectifier circuit (433) configured to convert the alternating current sent via the second impedance compensation circuit (431) into a direct current; and The second converter (435) is configured to convert the power rectified by the second rectifying circuit (433) and send the converted power to the battery 321e.

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