KR20210128607A - Electronic device and method for providing charging status information of the same - Google Patents

Abstract

Various embodiments of the present invention provide an electronic device and a method for providing charging state information of the electronic device charged by using a wireless charging device. The electronic device comprises a communication circuit, a display, a power receiving unit (eg, a power receiving coil), a battery, and a processor operatively coupled to the communication circuit, the display, the power receiving unit, and the battery. The processor can be set to receive information about at least one coil of the wireless charging device from the wireless charging device through the communication circuit and display the received information on the at least one coil through the display. Various other embodiments are possible.

Description

Electronic device and method for providing charging status information of the electronic device

Various embodiments of the present disclosure relate to an electronic device and a method of providing charge state information of the electronic device charged using the wireless charging device.

The use of portable electronic devices such as smart phones and tablet PCs is increasing.

The electronic device may include a battery to supply power required to perform various functions. The electronic device may receive power from the outside through wired or wireless to charge the battery.

The wireless charging of the electronic device uses wireless power transmission/reception, and the battery may be charged through a close contact such as placed on the wireless charging device without connecting the electronic device to a separate wired connector.

The wireless charging of the electronic device may include an electromagnetic induction method using a coil, a resonance method using resonance, or a radio wave radiation method in which electrical energy is converted into microwaves and transmitted.

For example, in the electromagnetic induction method using the coil, power of a wireless charging device (eg, a wireless charging transmitter) is wirelessly transferred to an electronic device (eg, a wireless charging receiver) using a magnetic field induced through the coil for charging. can be performed.

In the electromagnetic induction method, charging efficiency is high when the coil of the wireless charging device and the center of the coil of the electronic device are aligned, and in order to facilitate alignment between the coils, the wireless charging device may include a plurality of coils.

When the wireless charging device includes a plurality of coils, a plurality of electronic devices (eg, a smart phone or a wearable device) may be simultaneously charged. When the wireless charging device simultaneously charges a plurality of electronic devices, charging efficiency may be different depending on a location in which the plurality of electronic devices are placed.

The wireless charging device may cause a safety accident by supplying power to an object of another metal component through a coil even when an object of a metal component other than the electronic device (eg, a non-charging object such as a coin) is placed on the top. can

Various embodiments of the present disclosure provide state information of an object (eg, an electronic device and/or a non-charging object (eg, a coin)) disposed on top of a wireless charging device (eg, a wireless charging transmitter) including a plurality of coils You can provide a way to provide

An electronic device according to various embodiments of the present disclosure includes a communication circuit, a display, a power receiving unit (eg, a power receiving coil), a battery and the communication circuit, the display, the power receiving unit (eg, a power receiving coil), and the battery; a processor operatively connected, wherein the processor receives information on at least one coil of the wireless charging device from the wireless charging device through the communication circuit, and receives information about the received at least one coil It may be set to display through the display.

A method according to various embodiments of the present disclosure is a method of providing charge state information of an electronic device to be charged using a wireless charging device, and is provided to at least one coil of the wireless charging device used for charging the electronic device. On the basis of the operation of receiving the information on the wireless charging device and the received information about the at least one coil, the position of the electronic device charged in the upper part of the housing of the wireless charging device is displayed through a display It can include actions.

A wireless charging device for charging an electronic device according to various embodiments of the present disclosure includes a communication circuit, a first inverter, a first switch electrically connected to the first inverter, a second inverter, and a second inverter electrically connected to the second inverter 2 switches, a first group of coils connected to the first inverter through the first switch, a second group of coils connected to the second inverter through the second switch and the communication circuit, the first inverter, the first a processor operatively coupled to a first switch, the second inverter, the second switch, the first group of coils and the second group of coils, the processor comprising: the first group of coils and/or the second group of coils; An external object is sensed through at least one coil of the second group of coils, and position information about the first group of coils, the second group of coils, and at least one coil sensing the external object is obtained, the It may be set to transmit to an external electronic device capable of communication through a communication circuit.

According to various embodiments of the present disclosure, an object (eg, an electronic device and/or a non-charging object (eg, a coin)) disposed on top of a wireless charging device (eg, a wireless charging transmitter) including a plurality of coils The state information may be detected and guide information such as a charging start position of the electronic device, a coil capable of additional charging, a position of a non-charging object, and/or an alignment position movement of the electronic device may be provided.

1 is a block diagram of an electronic device in a network environment according to various embodiments of the present disclosure;
2 is a block diagram of a power management module and a battery according to various embodiments of the present disclosure;
3A is a diagram schematically illustrating an operation in which a wireless charging device (eg, a wireless charging transmitter) charges an electronic device (eg, a wireless charging receiver) according to various embodiments of the present disclosure;
3B is a diagram schematically illustrating a wireless charging device and a wireless charging environment of an electronic device according to various embodiments of the present disclosure;
3C is a diagram illustrating an operation of detecting an object, such as an electronic device, by a wireless charging device according to various embodiments of the present disclosure;
4 is a view showing the configuration of a plurality of coils provided in the wireless charging device according to various embodiments of the present invention.
5 is a diagram schematically showing the configuration of a wireless charging device according to various embodiments of the present invention.
6 is a block diagram schematically illustrating a configuration of an electronic device according to various embodiments of the present disclosure.
7A is a view for explaining a charging operation when an electronic device is disposed on an upper portion of a wireless charging device according to various embodiments of the present disclosure;
7B is a view for explaining a coil selection and a charging operation using the selected coil when the electronic device is disposed on the wireless charging device according to various embodiments of the present disclosure.
8 is a diagram illustrating a user interface illustrating a state in which an electronic device is disposed on an upper portion of a wireless charging device according to various embodiments of the present disclosure;
9 is a view for explaining an operation when a wireless charging device detects a non-charging object according to various embodiments of the present disclosure.
10 is a diagram illustrating a user interface showing a state in which a non-charging object is disposed on an upper portion of a wireless charging device according to various embodiments of the present disclosure;
11 is a view for explaining a state in which an electronic device is not aligned on top of a wireless charging device according to various embodiments of the present disclosure;
12 is a diagram illustrating a user interface illustrating a state in which an electronic device is disposed in a non-aligned upper portion of a wireless charging device according to various embodiments of the present disclosure;
13 is a view for explaining an operation when at least one electronic device and a non-charging object are disposed on top of a wireless charging device according to various embodiments of the present disclosure;
14 is a flowchart illustrating a method of providing charge state information of an electronic device being charged using a wireless charging device according to various embodiments of the present disclosure;

1 is a block diagram of an electronic device 101 in a network environment 100 according to various embodiments.

Referring to FIG. 1 , in a network environment 100 , an electronic device 101 communicates with an electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or a second network 199 . It may communicate with the electronic device 104 or the server 108 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108 . According to an embodiment, the electronic device 101 includes a processor 120 , a memory 130 , an input device 150 , a sound output device 155 , a display device 160 , an audio module 170 , and a sensor module ( 176 , interface 177 , haptic module 179 , camera module 180 , power management module 188 , battery 189 , communication module 190 , subscriber identification module 196 , or antenna module 197 . ) may be included. In some embodiments, at least one of these components (eg, the display device 160 or the camera module 180 ) may be omitted or one or more other components may be added to the electronic device 101 . In some embodiments, some of these components may be implemented as one integrated circuit. For example, the sensor module 176 (eg, a fingerprint sensor, an iris sensor, or an illuminance sensor) may be implemented while being embedded in the display device 160 (eg, a display).

The processor 120, for example, executes software (eg, the program 140) to execute at least one other component (eg, a hardware or software component) of the electronic device 101 connected to the processor 120 . It can control and perform various data processing or operations. According to one embodiment, as at least part of data processing or operation, the processor 120 converts commands or data received from other components (eg, the sensor module 176 or the communication module 190 ) to the volatile memory 132 . may be loaded into the volatile memory 132 , process commands or data stored in the volatile memory 132 , and store the resulting data in the non-volatile memory 134 . According to an embodiment, the processor 120 includes a main processor 121 (eg, a central processing unit or an application processor), and a secondary processor 123 (eg, a graphic processing unit, an image signal processor) that can operate independently or together with the main processor 121 . , a sensor hub processor, or a communication processor). Additionally or alternatively, the auxiliary processor 123 may be configured to use less power than the main processor 121 or to be specialized for a designated function. The auxiliary processor 123 may be implemented separately from or as a part of the main processor 121 .

The auxiliary processor 123 may be, for example, on behalf of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or when the main processor 121 is active (eg, executing an application). ), together with the main processor 121, at least one of the components of the electronic device 101 (eg, the display device 160, the sensor module 176, or the communication module 190) It is possible to control at least some of the related functions or states. According to an embodiment, the coprocessor 123 (eg, an image signal processor or a communication processor) may be implemented as part of another functionally related component (eg, the camera module 180 or the communication module 190). have.

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

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

The input device 150 may receive a command or data to be used by a component (eg, the processor 120 ) of the electronic device 101 from the outside (eg, a user) of the electronic device 101 . The input device 150 may include, for example, a microphone, a mouse, a keyboard, or a digital pen (eg, a stylus pen).

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

The display device 160 may visually provide information to the outside (eg, a user) of the electronic device 101 . The display device 160 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the corresponding device. According to an embodiment, the display device 160 may include a touch circuitry configured to sense a touch or a sensor circuit (eg, a pressure sensor) configured to measure the intensity of a force generated by the touch. have.

The audio module 170 may convert a sound into an electric signal or, conversely, convert an electric signal into a sound. According to an embodiment, the audio module 170 acquires a sound through the input device 150 , or an external electronic device (eg, a sound output device 155 ) connected directly or wirelessly with the electronic device 101 . The electronic device 102) (eg, a speaker or headphones) may output a sound.

The sensor module 176 detects an operating state (eg, power or temperature) of the electronic device 101 or an external environmental state (eg, user state), and generates an electrical signal or data value corresponding to the sensed state. can do. According to an embodiment, the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, a barometric sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, a humidity sensor, or an illuminance sensor.

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

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

The haptic module 179 may convert an electrical signal into a mechanical stimulus (eg, vibration or movement) or an electrical stimulus that the user can perceive through tactile or kinesthetic sense. According to an embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 180 may capture still images and moving images. According to an embodiment, the camera module 180 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 188 may manage power supplied 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).

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

The communication module 190 is a direct (eg, wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (eg, the electronic device 102, the electronic device 104, or the server 108). It can support establishment and communication through the established communication channel. The communication module 190 may include one or more communication processors that operate independently of the processor 120 (eg, an application processor) and support direct (eg, wired) communication or wireless communication. According to one embodiment, the communication module 190 is a wireless communication module 192 (eg, 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 (eg, : It may include a local area network (LAN) communication module, or a power line communication module). Among these communication modules, a corresponding communication module is a first network 198 (eg, a short-range communication network such as Bluetooth, WiFi direct, or IrDA (infrared data association)) or a second network 199 (eg, a cellular network, the Internet, or It may communicate with an external electronic device via a computer network (eg, a telecommunication network such as a LAN or WAN). These various types of communication modules may be integrated into one component (eg, a single chip) or may be implemented as a plurality of components (eg, multiple chips) separate from each other. The wireless communication module 192 uses the subscriber information (eg, International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 196 within a communication network such as the first network 198 or the second network 199 . The electronic device 101 may be identified and authenticated.

The antenna module 197 may transmit or receive a signal or power to the outside (eg, an external electronic device). According to an embodiment, the antenna module may include one antenna including a conductor formed on a substrate (eg, a PCB) or a radiator formed of a conductive pattern. According to an embodiment, the antenna module 197 may include a plurality of antennas. In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 198 or the second network 199 is connected from the plurality of antennas by, for example, the communication module 190 . can be selected. A signal or power may be transmitted or received between the communication module 190 and an external electronic device through the selected at least one antenna. According to some embodiments, other components (eg, RFIC) other than the radiator may be additionally formed as a part of the antenna module 197 .

At least some of the components are connected to each other through a communication method between peripheral devices (eg, a bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and a signal ( e.g. commands or data) can be exchanged with each other.

According to an embodiment, the command or data may be transmitted or received between the electronic device 101 and the external electronic device 104 through the server 108 connected to the second network 199 . Each of the electronic devices 102 and 104 may be the same or a different type of the electronic device 101 . According to an embodiment, all or a part of operations executed in the electronic device 101 may be executed in one or more of the external electronic devices 102 , 104 , or 108 . For example, when the electronic device 101 needs to perform a function or service automatically or in response to a request from a user or other device, the electronic device 101 may perform the function or service itself instead of executing the function or service itself. Alternatively or additionally, one or more external electronic devices may be requested to perform at least a part of the function or the service. The one or more external electronic devices that have received the request may execute at least a part of the requested function or service, or an additional function or service related to the request, and transmit a result of the execution to the electronic device 101 . The electronic device 101 may process the result as it is or additionally and provide it as at least a part of a response to the request. For this purpose, for example, cloud computing, distributed computing, or client-server computing technology may be used.

2 is a block diagram 200 of a power management module 188 and a battery 189, in accordance with various embodiments. Referring to FIG. 2 , the power management module 188 may include a charging circuit 210 , a power regulator 220 , or a fuel gauge 230 . The charging circuit 210 may charge the battery 189 using power supplied from an external power source for the electronic device 101 . According to an embodiment, the charging circuit 210 may include a type of external power source (eg, a power adapter, USB, or wireless charging), a size of power that can be supplied from the external power source (eg, about 20 watts or more), or a battery 189 ), a charging method (eg, normal charging or fast charging) may be selected based on at least some of the properties, and the battery 189 may be charged using the selected charging method. The external power source may be connected to the electronic device 101 by wire through, for example, the connection terminal 178 or wirelessly through the antenna module 197 .

The power regulator 220 may generate a plurality of powers having different voltages or different current levels by, for example, adjusting a voltage level or a current level of power supplied from an external power source or battery 189 . The power regulator 220 may adjust the external power source or the power of the battery 189 to a voltage or current level suitable for each of some of the components included in the electronic device 101 . According to an embodiment, the power regulator 220 may be implemented in the form of a low drop out (LDO) regulator or a switching regulator. The fuel gauge 230 may measure usage state information about the battery 189 (eg, the capacity of the battery 189 , the number of times of charging and discharging, a voltage, or a temperature).

Power management module 188, for example, using the charging circuit 210, voltage regulator 220, or fuel gauge 230, based at least in part on the measured usage state information of the battery 189 It is possible to determine charge-related state of charge information (eg, lifetime, overvoltage, undervoltage, overcurrent, overcharge, overdischarge, overheating, short circuit, or swelling). The power management module 188 may determine whether the battery 189 is normal or abnormal based at least in part on the determined state of charge information. When it is determined that the state of the battery 189 is abnormal, the power management module 188 may adjust charging of the battery 189 (eg, decrease charging current or voltage, or stop charging). According to an embodiment, at least some of the functions of the power management module 188 may be performed by an external control device (eg, the processor 120 ).

The battery 189 may include a battery protection circuit module (PCM) 240 , according to one embodiment. The battery protection circuit 240 may perform one or more of various functions (eg, a pre-blocking function) to prevent deterioration or burnout of the battery 189 . The battery protection circuit 240 is additionally or alternatively a battery management system (battery management system) capable of performing various functions including cell balancing, capacity measurement of a battery, number of times of charging and discharging, temperature measurement, or voltage measurement. BMS))).

According to an embodiment, at least a part of the use state information or the charge state information of the battery 189 may include a corresponding sensor (eg, a temperature sensor), a fuel gauge 230 , or a power management module among the sensor modules 176 . (188) can be used. According to an embodiment, the corresponding sensor (eg, a temperature sensor) of the sensor module 176 is included as a part of the battery protection circuit 240 or is a separate device to be disposed near the battery 189 . can

The electronic device according to various embodiments disclosed in this document may have various types of devices. The electronic device may include, for example, a portable communication device (eg, a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a home appliance device. The electronic device according to the embodiment of the present document is not limited to the above-described devices.

It should be understood that the various embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, and include various modifications, equivalents, or substitutions of the embodiments. In connection with the description of the drawings, like reference numerals may be used for similar or related components. The singular form of the noun corresponding to the item may include one or more of the item, unless the relevant context clearly dictates otherwise. As used herein, "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 "A; Each of the phrases "at least one of B, or C" may include any one of, or all possible combinations of, items listed together in the corresponding one of the phrases. Terms such as “first”, “second”, or “first” or “second” may simply be used to distinguish the component from other components in question, and may refer to components in other aspects (e.g., importance or order) is not limited. It is said that one (eg, first) component is "coupled" or "connected" to another (eg, second) component, with or without the terms "functionally" or "communicatively". When referenced, it means that one component can be connected to the other component directly (eg by wire), wirelessly, or through a third component.

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

Various embodiments of the present document include one or more instructions stored in a storage medium (eg, internal memory 136 or external memory 138) readable by a machine (eg, electronic device 101). may be implemented as software (eg, the program 140) including For example, the processor (eg, the processor 120 ) of the device (eg, the electronic device 101 ) may call at least one of one or more instructions stored from a storage medium and execute it. This makes it possible for the device to be operated to perform at least one function according to the at least one command called. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The device-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' only means that the storage medium is a tangible device and does not contain a signal (eg, electromagnetic wave), and this term is used in cases where data is semi-permanently stored in the storage medium and It does not distinguish between temporary storage cases.

According to one embodiment, the method according to various embodiments disclosed in this document may be provided as included in a computer program product. Computer program products may be traded between sellers and buyers as commodities. The computer program product is distributed in the form of a machine-readable storage medium (eg compact disc read only memory (CD-ROM)), or via an application store (eg Play Store ^TM ) or on two user devices ( It can be distributed (eg downloaded or uploaded) directly, online between smartphones (eg: smartphones). In the case of online distribution, at least a part of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium such as a memory of a server of a manufacturer, a server of an application store, or a relay server.

According to various embodiments, each component (eg, a module or a program) of the above-described components may include a singular or a plurality of entities. According to various embodiments, one or more components or operations among the above-described corresponding components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (eg, a module or a program) may be integrated into one component. In this case, the integrated component may perform one or more functions of each component of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. . According to various embodiments, operations performed by a module, program, or other component are executed sequentially, in parallel, repeatedly, or heuristically, or one or more of the operations are executed in a different order, or omitted. or one or more other operations may be added.

3A is a diagram schematically illustrating an operation of a wireless charging device charging an electronic device according to various embodiments of the present disclosure;

3A illustrates that the wireless charging device 301 (eg, a wireless charging transmitter) according to various embodiments of the present disclosure may transmit wireless power to charge the electronic device 302 (eg, a wireless charging receiver).

According to various embodiments, when the battery (eg, the battery 189 of FIG. 1 ) of the electronic device 302 is in a discharged state or the amount of available power is less than a specified level, the wireless charging device 301 transmits wireless power. Thus, the battery 189 of the electronic device 302 may be charged.

According to various embodiments, the electronic device 302 of FIG. 3A may include the electronic device 101 illustrated in FIG. 1 . For example, the electronic device 302 may include at least one of a smart phone, a wearable device (eg, a watch), and a wireless earphone. The wireless charging device 301 may be the same as or similar to the electronic device 302 . For example, the wireless charging device 301 may include a wireless charging pad or a smart phone. The wireless charging device 301 may be implemented by at least one of the electronic devices 101 , 102 and/or 104 illustrated in FIG. 1 . The wireless charging device 301 may be configured to include at least one or more of the components of the electronic device 101 illustrated in FIG. 1 .

According to various embodiments, the wireless charging device 301 prevents the electronic device 302 from being placed (eg, adjacent to or in contact with) on the upper portion of the housing 304 in a state where the electronic device 302 is being charged. can be detected. For example, the upper portion of the housing 304 of the wireless charging device 301, a surface adjacent to the coil for wireless charging (eg, the power transmission coil 311k in FIG. 3B ) or the magnetic force of the coil for wireless charging is transmitted It can mean the side in the direction of becoming. According to an embodiment, the wireless charging device 301 transmits a first ping signal (eg, one of an analog ping signal, a Q ping signal, or a digital ping signal) periodically or at a specified time through the wireless charging coil. It may be possible to check whether the electronic device 302 is adjacent to or in contact with the wireless charging device 301 through a first ping signal. The electronic device 302 receives a feedback signal (eg, a response signal, identification information, configuration information, and/or a signal strength packet (SSP) signal) in response to a first ping signal transmitted from the wireless charging device 301 . It can be transmitted to the wireless charging device 301 . The Q ping signal is a kind of analog ping signal, and by detecting a change in a signal applied to the coil of the wireless charging device 301 (eg, at least one of current, voltage, or frequency), the degree of coincidence of the resonance point of the coil is confirmed. can

According to various embodiments, the wireless charging device 301 is based on a first ping signal for determining whether the electronic device 302 is disposed on the upper portion of the housing 304, the wireless charging device The presence or absence of an object (eg, metal) disposed on the upper portion of the housing 304 of the 301 may be checked. For example, the wireless charging device 301 checks a change in electrical energy (eg, current or voltage) measured when the first ping signal is transmitted, and based on the confirmed change in electrical energy Thus, it is possible to check whether the electronic device 302 is disposed (eg, exists). When the existence of the electronic device 302 is confirmed, the wireless charging device 301 may adjust at least some of a plurality of parameters related to the first ping signal.

According to various embodiments, on the upper portion of the housing 304 of the wireless charging device 301 , a guide (eg, an indicator) for a position (eg, a position of a coil or a chargeable position) where the electronic device 302 should be disposed. may be displayed.

3B is a diagram schematically illustrating a wireless charging device and a wireless charging environment 300 of an electronic device according to various embodiments of the present disclosure.

According to various embodiments, the wireless charging device 301 (eg, a wireless charging transmitter) of FIG. 3B may include the wireless charging device 301 illustrated in FIG. 3A . The electronic device 302 (eg, a wireless charging receiver) of FIG. 3B may include the electronic device 101 illustrated in FIG. 1 or the electronic device 302 illustrated in FIG. 3A .

According to various embodiments, the wireless charging device 301 according to various embodiments of the present disclosure transmits power wirelessly when the electronic device 302 is disposed on the upper portion of the housing 304 to transmit power to the battery of the electronic device 302 . (321e) can be charged.

According to various embodiments, 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 .

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

According to various embodiments, the power transmitter 311 may include a power adapter 311a, a power generation circuit 311b, a matching circuit 311c, and a power transmission coil 311k.

According to an embodiment, the power adapter 311a may convert a voltage of power input from an external power source (eg, travel adapter; TA). The power generation circuit 311b may generate power required for power transmission from the converted voltage. The matching circuit 311c may maximize the efficiency between the power transmission coil 311k and the power reception coil 321k of the electronic device 302 .

According to various embodiments, when the power transmitter 311 wirelessly transmits power to the plurality of electronic devices 302 , the power adapter 311a , the power generation circuit 311b , the matching circuit 311c , or power At least one of the transmitting coils 311k may be included in plurality.

According to an embodiment, the power transmission coil 311k may include a plurality of coils grouped in the same layer and/or different layers. The wireless charging device 301 may charge the electronic device 302 by selecting some of a plurality of coils disposed on the same layer and/or different layers.

According to an embodiment, the control circuit 312 may perform overall control for transmitting power through the wireless charging device 301 . The control circuit 312 may be operatively connected to the power transmitter 311 , the communication circuit 313 , and the sensing circuit 314 . The control circuit 312 may generate various messages necessary for wireless power transmission and transmit it to the communication circuit 313 . The control circuit 312 calculates power (or amount of power) to be transmitted to the electronic device 302 based on information received from the electronic device 302 (eg, a wireless charging receiver) through the communication circuit 313 . can The control circuit 312 may control the power transmitter 311 to transmit the calculated power to the electronic device 302 through the power transmission coil 311k.

According to an embodiment, the communication circuit 313 (eg, the communication module 190 of FIG. 1 ) may include at least one of a first communication circuit 313a or a second communication circuit 313b. The first communication circuit 313a uses the same frequency as the frequency used for wireless power transmission in the power transmission coil 311k or uses a frequency in a band adjacent to the frequency used for wireless power transmission, the electronic device 302 ) may communicate with the first communication circuit 323a (eg, in-band communication using the power transmission coil 311k to transmit a power signal or a communication signal). The second communication circuit 313b communicates with the second communication circuit 323b of the electronic device 302 (eg, FIG. 1 of the antenna module 197 may be used for out-band communication for transmitting a communication signal). The second communication circuit 313b, for example, uses at least one of Bluetooth, Bluetooth low energy (BLE), Wi-Fi, or near field communication (NFC). information (eg, rectified voltage (Vrec) information, current (Iout) information flowing through the rectification circuit, various packets , or message). The second communication circuit 313b may also communicate with other electronic devices that do not perform wireless charging (eg, the electronic devices 102 and 104 of FIG. 1 ). The other electronic device may include a display (eg, the display device 160 of FIG. 1 ).

According to an embodiment, the sensing circuit 314 (eg, the sensor module 176 of FIG. 1 ) may include at least one sensor, and is connected to the wireless charging device 301 using the at least one sensor. at least one state related to the For example, the sensing circuit 314 may include at least one of a temperature sensor, a motion sensor, a proximity sensor, and a current (or voltage) sensor.

According to various embodiments, the temperature sensor may detect a temperature state of the wireless charging device 301 . The motion sensor may detect a motion state of the wireless charging device 301 . The proximity sensor is capable of detecting a specific object (eg, the electronic device 302 or a metal object other than the electronic device 302 ) in proximity and/or in contact with the upper portion of the housing 304 of the wireless charging device 301 . can The current sensor (or voltage) may detect an output signal state (eg, at least one of a current level, a voltage level, or a power level) of the wireless charging device 301 . The current (or voltage) sensor may measure a signal to the power transmitter 311 . For example, the current (or voltage) sensor may measure a signal for at least a partial region of the matching circuit 311c and the power generating circuit 311b. The current (or voltage) sensor may include a circuit for measuring a signal for the front end of the power transmission coil 311k.

According to various embodiments, the sensing circuit 314 may include an electronic device 302 (eg, a wireless charging transmitter) or the electronic device 302 (eg, a wireless charging transmitter) disposed on the housing 304 of the wireless charging device 301 (eg, a wireless charging transmitter). An external object (eg, metal) other than the device 302 may be detected.

According to various embodiments, when the wireless charging device 301 is a mobile terminal (eg, the electronic device 101 shown in FIG. 1 or the electronic device 302 shown in FIG. 3A ), the wireless charging device 301 is It may include a display (eg, the display device 160 of FIG. 1 ). The wireless charging device 301 uses a display to provide various information related to wireless charging (eg, information about the charging state of the wireless charging device 301 , information about the charging state of the electronic device 302 , the electronic device 302 ). information about the detection of , or information about the detection of an external object (eg, metal)) can be displayed.

Referring to FIG. 3B , when the electronic device 302 (eg, a wireless charging receiver) according to various embodiments of the present disclosure is disposed on the housing 304 of the wireless charging device 301 , the wireless charging device 301 . Power can be received wirelessly from

According to various embodiments, the electronic device 302 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 302 , a description of components corresponding to the wireless charging device 301 may be omitted.

According to an embodiment, the power receiving unit 321 includes a power receiving coil 321k for receiving wireless power from the wireless charging device 301 (eg, a power transmitting coil 311k), a matching circuit 321a, and the received a rectifying circuit 321b for rectifying AC power to DC, a regulating circuit 321c for regulating the charging voltage, a switching circuit 321d, and/or a battery 321e (eg, battery 189 in FIG. 1 ). can

According to an embodiment, the control circuit 322 may perform overall control related to wireless power reception (or wireless charging) of the electronic device 302 . The control circuit 322 may generate various messages related to wireless charging and transmit it to the communication circuit 323 .

According to an embodiment, the communication circuit 323 (eg, the communication module 190 of FIG. 1 ) may include at least one of a first communication circuit 323a or a second communication circuit 323b. The first communication circuit 323a may communicate with the first communication circuit 313a of the wireless charging device 301 using the power receiving coil 321k. The second communication circuit 323b may communicate with the second communication circuit 313b of the wireless charging device 301 using at least one of Bluetooth, low-power Bluetooth, Wi-Fi, and short-range wireless communication.

According to an embodiment, the sensor 324 (eg, the sensor module 176 of FIG. 1 ) may include at least one of a current (or voltage) sensor, a temperature sensor, a proximity sensor, an illuminance sensor, or an acceleration sensor. .

According to an embodiment, the display 325 (eg, the display device 160 of FIG. 1 ) may display various information related to wireless power reception (or wireless charging).

According to an embodiment, when the wireless charging device 301 is the same or similar to the electronic device 302 (eg, a smart phone), the wireless charging device 301 and the electronic device 302 It may contain the same components.

3C is a diagram illustrating an operation of detecting an object, such as an electronic device, by a wireless charging device according to various embodiments of the present disclosure;

Referring to FIG. 3C , a wireless charging device 301 (eg, a wireless charging transmitter) according to various embodiments of the present disclosure has a function (eg, a wireless charging receiver) for transmitting power to an electronic device 302 (eg, a wireless charging receiver). : Tx function).

According to various embodiments, the wireless charging device 301 detects and authenticates the electronic device 302, for example, when the electronic device 302 is disposed on the housing 304, and the electronic device 302 ) to transmit wireless power.

According to an embodiment, the wireless charging device 301 may perform a ping operation 303 , an identification & configuration operation 305 , and a power transfer operation 307 . have. The wireless charging device 301 transmits and receives at least one signal or data using a ping operation 303 , an identification & configuration operation 305 , and a power transfer operation 307 . can do.

According to an embodiment, the control circuit (eg, the control circuit 312 of FIG. 3B ) of the wireless charging device 301 detects the electronic device 302 existing within a predetermined range using the ping operation 303 . A signal (eg, a ping signal) may be transmitted at predetermined time intervals. For example, the control circuit 312 of the wireless charging device 301 may transmit a first ping signal or a second ping signal to the electronic device 302 . A transmission period of the first ping signal may be shorter than a transmission period of the second ping signal. The first ping signal may have a transmission period of about 0.1 to 10 ms. The second ping signal may have a transmission period of about 65 to 70 ms. The first ping signal may include an analog ping signal or a Q ping 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 be changed according to the settings of the wireless charging device 301 and/or the user.

According to an embodiment, the wireless charging device 301 transmits a feedback signal (eg, a response signal, identification information, configuration information, and/or SSP signal) in response to the first ping signal or the second ping signal to the electronic device ( 302 , and may detect the presence of the electronic device 302 .

According to various embodiments, the wireless charging device 301 uses an analog ping signal that is a first ping signal to determine the type of a specific object (eg, the electronic device 302 or an object of a metal component other than the electronic device). And depending on the position, for example, by detecting a change in current in the power generation circuit 311b, it is possible to determine whether a specific object is disposed on the upper portion of the housing 304 .

According to various embodiments, the wireless charging device 301 uses a Q ping signal that is a first ping signal, and the type of a specific object (eg, the electronic device 302 or an object of a metal component other than the electronic device). And according to the position, for example, by detecting that the attenuation coefficient (eg, Q value) and natural frequency of the power transmission coil 311k change, to determine whether a specific object is placed on the upper part of the housing 304 or not. can

According to various embodiments, when it is confirmed that a specific object (eg, the electronic device 302) is disposed on the upper portion of the housing 304 through the first ping signal, the wireless charging device 301 determines that the second ping signal is The type and location of a specific object disposed on the upper portion of the housing 304 may be checked using the digital ping signal. For example, when the wireless charging device 301 transmits a digital ping signal, which is the second ping signal, to the electronic device 302 , a voltage greater than or equal to a specific value is induced in the rectification circuit 321b of the electronic device 302 , A signal strength packet (SSP) signal including the strength of the induced voltage (eg, information about the voltage value) may be transmitted to the wireless charging device 301 . The wireless charging device 301 may identify the type and location of the electronic device 302 disposed on the upper portion of the housing 304 through the transmitted SSP signal.

According to an embodiment, the control circuit 312 of the wireless charging device 301 may set a plurality of parameters related to 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 transmits the frequency of the first ping signal or the second ping signal, the first ping signal or the second ping signal, and a power transmission circuit (eg: A plurality of parameters related to at least one of a voltage applied to the power transmitter 311 or the power transmission coil 311k of FIG. 3B and a transmission period of the first ping signal or the second ping signal may be set. The plurality of parameters may be provided as default values in the initial setting of the wireless charging device 301 .

According to an embodiment, in the ping operation 303 , the control circuit 312 of the wireless charging device 301 performs a specific object (eg, an electronic device) present on the housing 304 of the wireless charging device 301 . The presence or absence of the device 302 may be determined. The control circuit 312 of the wireless charging device 301 is based on a plurality of parameters related to transmission of the first ping signal or the second ping signal during the operation period (or wireless charging standby state) related to the ping operation 303 . to transmit a ping signal, and to check electrical energy (eg, at least one of current and voltage) measured by the power transmitter 311 (or the power transmission coil 311k) in response to the transmission of the ping signal.

According to an embodiment, the control circuit 312 of the wireless charging device 301 is a power transmitter 311 (or a power transmission coil 311k) in response to the transmission of the first ping signal or the second ping signal. Check at least one of the relationship between the voltage measured in and the specified threshold voltage and the relationship between the current measured in the power transmitter 311 (or the power transmission coil 311k) and the specified threshold current, and based on the confirmation result, wireless The presence or absence of an object existing above the charging device 301 may be determined.

According to one embodiment, the control circuit 312 of the wireless charging device 301 in response to the transmission of the first ping signal or the second ping signal in the power transmitter 311 (or the power transmission coil 311k) Based on the change in the measured electrical energy (eg, at least one of current and voltage), the state of the object existing on the top of the wireless charging device 301 (eg, the type of object, the size of the object, or the arrangement of the object) state) or a change in the state of an object can be detected.

According to one embodiment, the control circuit 312 of the wireless charging device 301 is a specific object (eg, the electronic device 302 or the electronic device) on the upper portion of the housing 304 of the wireless charging device 301 . When it is confirmed that an object of a metal component other than that of the object) is placed, noise caused by the object (eg, vibration of the object and/or noise in the audible frequency band caused by the vibration), the degree of heat generation of the object, or the noise caused by the object In order to suppress deterioration of the wireless charging device 301 (eg, heat generation of the wireless charging device 301 due to induction heating from an object), at least one of a plurality of parameters related to transmission of the first ping signal or the second ping signal Some may be changed or adjusted. The control circuit 312 of the wireless charging device 301 may output a specified notification (eg, light emission, vibration, or sound) in order to provide a notification about the existence of the specific object.

According to an embodiment, when the control circuit 312 of the wireless charging device 301 detects the electronic device 302 (eg, a wireless charging receiver), in the authentication and configuration operation 305 , the electronic device ( 302) may receive identification information and configuration information.

According to various embodiments, the identification information may include at least one piece of information for authenticating the electronic device 302 (eg, a wireless communication ID of the electronic device 302 ). The control circuit 312 of the wireless charging device 301 is the identification information and information stored in advance in the memory (eg, the memory 130 of FIG. 1) (eg, the wireless charging device 301 and the wireless power sharing is authenticated electronic If the wireless communication IDs of the devices 302) match, the detected electronic device 302 may be determined as a valid device. The configuration information may include various types of information required for the electronic device 302 to receive wireless power from the wireless charging device 301 .

According to an embodiment, as the electronic device 302 is authenticated or selected based on the identification information and the configuration information, the control circuit 312 of the wireless charging device 301, in the power transmission operation 307, the Wireless power may be transmitted to the electronic device 302 . In the power transmission operation 307 , the control circuit 312 of the wireless charging device 301 performs at least one CEP including notification information on the power (or amount of power) required by the electronic device 302 for charging. At least one of a control error packet (RPP) signal and a received power packet (RPP) signal including information on the amount of power (or amount of power) received by the electronic device 302 may be received from the electronic device 302 . The control circuit 312 of the wireless charging device 301 may adjust the wireless power transmitted to the electronic device 302 based on at least one of the at least one CEP signal and the RPP signal.

According to an embodiment, the electronic device 302 may transmit the at least one CEP signal and the RPP signal at a specified period or when a specific event (eg, a state change of the electronic device 302) occurs. The at least one CEP signal and the RRP signal may be transmitted at different periods.

According to various embodiments, when the wireless charging device 301 includes a plurality of coils, the wireless charging device 301 performs a ping operation 303, authentication and identification through each of the plurality of coils. & configuration) operation 305 and a power transfer operation 307 may be performed. According to an embodiment, the wireless charging device 301 performs a ping operation 303 through a plurality of coils at the same time, or a ping operation 303 of a plurality of coils based on a specified pattern or order. ) can be done. According to an embodiment, when an electronic device (eg, the electronic device 302 ) is detected through the plurality of coils, the wireless charging device 301 detects each detected electronic device (eg, the electronic device 302 ). The identification & configuration operation 305 may be performed through the coil, or the identification & configuration operation 305 may be performed through the coil detected above a specified threshold value. According to an embodiment, the wireless charging device 301 transmits power to an electronic device (eg, the electronic device 302 ) through each of a plurality of coils in a power transfer operation 307 , and the electronic device A feedback may be received from (eg, the electronic device 302 ).

4 is a view showing the configuration of a plurality of coils provided in the wireless charging device according to various embodiments of the present invention.

Referring to FIG. 4 , a wireless charging device 301 (eg, a wireless charging transmitter) according to various embodiments of the present disclosure includes a first group of coils 410 , a second group of coils 420 and/or a third A group of coils 430 may be included within the housing 304 .

According to various embodiments, the first group of coils 410 , the second group of coils 420 , and the third group of coils 430 may be included in the power transmission coil 311k illustrated in FIG. 3B , respectively.

According to various embodiments, the first group of coils 410 , the second group of coils 420 , and the third group of coils 430 may be disposed on the same layer and/or different layers.

According to various embodiments, each of the first group of coils 410 , the second group of coils 420 , and the third group of coils 430 may be configured as a single layer. Each of the first group of coils 410 , the second group of coils 420 , and the third group of coils 430 may be formed of a plurality of layers instead of a single layer.

According to various embodiments, the first group of coils 410 may include a plurality of coils. For example, the first group of coils 410 may include at least one of an A1 coil, an A2 coil, an A3 coil, an A4 coil, an A5 coil, and an A6 coil. The A1 coil, A2 coil, A3 coil, A4 coil, A5 coil, and A6 coil may be disposed on the same layer or on different layers.

According to various embodiments, the second group of coils 420 may include a plurality of coils. For example, the second group of coils 420 may include at least one of a B1 coil, a B2 coil, a B3 coil, a B4 coil, a B5 coil, and a B6 coil. The B1 coil, B2 coil, B3 coil, B4 coil, B5 coil, and B6 coil may be disposed on the same layer or on different layers.

According to various embodiments, the third group of coils 430 may include a plurality of coils. For example, the third group of coils 430 may include at least one of a C1 coil, a C2 coil, a C3 coil, a C4 coil, a C5 coil, a C6 coil, and a C7 coil. The C1 coil, C2 coil, C3 coil, C4 coil, C5 coil, C6 coil and C7 coil may be disposed on the same layer or on different layers.

According to various embodiments, a plurality of coils (eg, A1 coil, A2 coil, A3 coil, A4 coil, A5 coil, and A6 coil) provided in the first group of coils 410, the second group of coils ( A plurality of coils (eg, B1 coil, B2 coil, B3 coil, B4 coil, B5 coil, and B6 coil) provided in 420 and a plurality of coils (eg, C1 coil) provided in the third group of coils 430 . , C2 coil, C3 coil, C4 coil, C5 coil, C6 coil, and C7 coil) may be disposed to cross the charging region.

According to various embodiments, a plurality of coils (eg, A1 coil, A2 coil, A3 coil, A4 coil, A5 coil, and A6 coil) provided in the first group of coils 410, the second group of coils ( A plurality of coils (eg, B1 coil, B2 coil, B3 coil, B4 coil, B5 coil, and B6 coil) provided in 420 and a plurality of coils (eg, C1 coil) provided in the third group of coils 430 . , C2 coil, C3 coil, C4 coil, C5 coil, C6 coil, and C7 coil) may not coincide with each other and may be staggered.

According to various embodiments, a plurality of groups of coils included in the wireless charging device 301 shown in FIG. 4 (eg, a first group of coils 410 , a second group of coils 420 , and a third group of coils) 430) and a plurality of coils belonging to each group (eg, A1 coil to C7 coil) are exemplary, and the wireless charging device 301 may include more than the illustrated plurality of groups and/or a plurality of coils. have.

5 is a diagram schematically showing the configuration of a wireless charging device according to various embodiments of the present invention.

According to various embodiments, the wireless charging device 301 includes a first converter 510 , a first inverter 512 , a first switch 514 , a first group of coils 410 , and a first resonant element 516 . , a second converter 520 , a second inverter 522 , a second switch 524 , a second group of coils 420 , a second resonant element 526 , a third converter 530 , a third inverter ( 532 , a third switch 534 , a third group of coils 430 , a third resonant element 536 and/or a processor 540 .

According to various embodiments, the wireless charging device 301 illustrated in FIG. 5 may include a power transmitter 311 , a control circuit 312 , a communication circuit 313 and/or a sensing circuit 314 illustrated in FIG. 3B . can

In the description of FIG. 5 , the first converter 510 , the first inverter 512 , the first switch 514 , the first group of coils 410 , and the first resonance provided in the wireless charging device 301 . element 516 , second converter 520 , second inverter 522 , second switch 524 , second group of coils 420 , second resonant element 526 , third converter 530 , The third inverter 532 , the third switch 534 , the third group of coils 430 , and/or the third resonant element 536 are exemplary, and each of the components may be further added according to the embodiment. can be provided.

Referring to FIG. 5 , the wireless charging device 301 according to various embodiments of the present disclosure may receive power from the outside using the power supply 505 .

According to various embodiments, the wireless charging device 301 may include the wireless charging device 301 illustrated in FIGS. 3A, 3B, 3C and/or 4 .

According to various embodiments, the power supply unit 505 (eg, a power supply) may supply power to the wireless charging device 301 through a travel adapter (TA), a battery, or USB. The power supply unit 505 may supply power by converting alternating current (AC) power into direct current (DC) power.

According to an embodiment, the first converter 510 (eg, the power adapter 311a of FIG. 3B ) may convert DC power input through the power supply unit 505 into preset power. For example, the first converter 510 may convert the voltage so that the output voltage becomes about 5V.

According to an embodiment, the first inverter 512 (eg, the power generation circuit 311b of FIG. 3B ) may be electrically connected to the first converter 510 . The first inverter 512 may convert the DC voltage output through the first converter 510 into an AC voltage.

According to various embodiments, the first inverter 512 may include a predetermined amplifier (not shown). The first inverter 512 may amplify a signal input through the first converter 510 .

According to an embodiment, the first switch 514 may be electrically connected to the first inverter 512 . The first switch 514 may form a contact point between the first inverter 512 and the first group of coils 410 . The first switch 514 includes at least one of the A1 coil, A2 coil, A3 coil, A4 coil, A5 coil, and A6 coil among the first group of coils 410 and the first inverter 512 according to the control of the processor 540 . ) can be connected. The first switch 514 may switch an on or off state under the control of the processor 540 .

According to an embodiment, the first group of coils 410 may be connected to the first inverter 512 using a first switch 514 . The first group of coils 410 may include an A1 coil, an A2 coil, an A3 coil, an A4 coil, an A5 coil, and/or an A6 coil. At least one of A1 coil, A2 coil, A3 coil, A4 coil, A5 coil, and A6 coil is selectively connected to the first inverter 512 according to the control of the processor 540 and the on or off operation of the first switch 514 and can be connected At least one of the A1 coil, A2 coil, A3 coil, A4 coil, A5 coil, and A6 coil forms an electromagnetic field using an alternating current signal transmitted through the first inverter 512 under the control of the processor 540 to form an electromagnetic field, Power may be delivered to the electronic device 302 (eg, a wireless charging receiver).

According to an embodiment, the first resonant element 516 may be provided between the first inverter 512 and the first group of coils 410 . The first resonant element 516 may include a capacitor. The first resonant element 516 may maximize the efficiency of the first group of coils 410 .

According to an embodiment, the second converter 520 may convert DC power input through the power supply unit 505 into preset power. For example, the second converter 520 may convert the voltage so that the output voltage becomes about 5V.

According to an embodiment, the second inverter 522 (eg, the power generation circuit 311b of FIG. 3B ) may be electrically connected to the second converter 520 . The second inverter 522 may convert the DC voltage output through the second converter 520 into an AC voltage.

According to various embodiments, the second inverter 522 may include a predetermined amplifier (not shown). The second inverter 522 may amplify a signal input through the second converter 520 .

According to an embodiment, the second switch 524 may be electrically connected to the second inverter 522 . The second switch 524 may form a contact point between the second inverter 522 and the second group of coils 420 . The second switch 524 may include at least one of a B1 coil, a B2 coil, a B3 coil, a B4 coil, a B5 coil, or a B6 coil among the coils 420 of the second group and a second inverter 522 according to the control of the processor 540 . ) can be connected. The second switch 524 may switch an on or off state under the control of the processor 540 .

According to an embodiment, the second group of coils 420 may be connected to a second inverter 522 using a second switch 524 . The second group of coils 420 may include a B1 coil, a B2 coil, a B3 coil, a B4 coil, a B5 coil, and/or a B6 coil. At least one of the B1 coil, B2 coil, B3 coil, B4 coil, B5 coil, or B6 coil is selectively connected to the second inverter 522 according to the control of the processor 540 and the on or off operation of the second switch 524 and can be connected At least one of the B1 coil, B2 coil, B3 coil, B4 coil, B5 coil, or B6 coil forms an electromagnetic field using an AC signal transmitted through the second inverter 522 under the control of the processor 540 to form an electromagnetic field, Power may be delivered to the electronic device 302 (eg, a wireless charging receiver).

According to an embodiment, the second resonant element 526 may be provided between the second inverter 522 and the second group of coils 420 . The second resonant element 526 may include a capacitor. The second resonant element 526 may maximize the efficiency of the second group of coils 420 .

According to an embodiment, the third converter 530 may convert DC power input through the power supply unit 505 into preset power. For example, the third converter 530 may convert the voltage so that the output voltage becomes about 5V.

According to an embodiment, the third inverter 532 (eg, the power generation circuit 311b of FIG. 3B ) may be electrically connected to the third converter 530 . The third inverter 532 may convert the DC voltage output through the third converter 530 into an AC voltage.

According to various embodiments, the third inverter 532 may include a predetermined amplifier (not shown). The third inverter 532 may amplify a signal input through the third converter 530 .

According to an embodiment, the third switch 534 may be electrically connected to the third inverter 532 . The third switch 534 may form a contact point between the third inverter 532 and the third group of coils 430 . The third switch 534 may include at least one of a C1 coil, a C2 coil, a C3 coil, a C4 coil, a C5 coil, a C6 coil, or a C7 coil and a third of the third group of coils 430 according to the control of the processor 540 . An inverter 532 may be connected. The third switch 534 may switch an on or off state under the control of the processor 540 .

According to an embodiment, the third group of coils 430 may be connected to a third inverter 532 using a third switch 534 . The third group of coils 430 may include a C1 coil, a C2 coil, a C3 coil, a C4 coil, a C5 coil, a C6 coil, and/or a C7 coil. At least one of the C1 coil, C2 coil, C3 coil, C4 coil, C5 coil, C6 coil, or C7 coil is selectively selected according to the control of the processor 540 and the on or off operation of the third switch 534 to the third inverter ( 532) can be connected. At least one of the C1 coil, C2 coil, C3 coil, C4 coil, C5 coil, C6 coil, and C7 coil forms an electromagnetic field using an AC signal transmitted through the third inverter 532 under the control of the processor 540 . By doing so, wireless power may be transmitted to the electronic device 302 (eg, a wireless charging receiver).

According to an embodiment, the third resonant element 536 may be provided between the third inverter 532 and the third group of coils 430 . The third resonant element 536 may include a capacitor. The third resonant element 536 may maximize the efficiency of the third group of coils 430 .

According to an embodiment, the processor 540 (eg, the control circuit 312 of FIG. 3B ) includes a first converter 510 , a first inverter 512 , a first switch 514 , and a first group of coils. 410 , a first resonant element 516 , a second converter 520 , a second inverter 522 , a second switch 524 , a second group of coils 420 , a second resonant element 516 , The third converter 530 , the third inverter 532 , the third switch 534 , the third group of coils 430 and/or the third resonant element 536 may be operatively connected. The processor 540 may perform overall control of the wireless charging device 301 .

According to various embodiments, the processor 540 is disposed on an upper portion of a housing (eg, the housing 304 illustrated in FIG. 3A or FIG. 4 ) of the wireless charging device 301 (eg, a wireless charging transmitter) of the electronic device 302 . When (eg, a wireless charging receiver) is disposed (eg, adjacent or in contact), at least one group of the first group of coils 410 , the second group of coils 420 , and the third group of coils 430 . The electronic device 302 may be charged using the coil.

According to an embodiment, when the processor 540 is disposed on the upper portion of the housing 304 of the wireless charging device 301 (eg, a wireless charging transmitter), the electronic device 302 (eg, a wireless charging receiver), At least one of the first group of coils 410 (eg, at least one of A1 coil, A2 coil, A3 coil, A4 coil, A5 coil, or A6 coil) and at least one of the second group of coils 420 The electronic device 302 may be charged using a coil (eg, at least one of a B1 coil, a B2 coil, a B3 coil, a B4 coil, a B5 coil, and a B6 coil).

According to various embodiments, a plurality of coils (eg, A1 coil, A2 coil, A3 coil, A4 coil, A5 coil, and A6 coil) provided in the first group of coils 410, the second group of coils ( A plurality of coils (eg, B1 coil, B2 coil, B3 coil, B4 coil, B5 coil, and B6 coil) provided in 420 and a plurality of coils (eg, C1 coil) provided in the third group of coils 430 . , C2 coil, C3 coil, C4 coil, C5 coil, C6 coil, and C7 coil) may be disposed to cross each other to charge the electronic device 302 .

According to various embodiments, when the electronic device 302 is disposed on the upper portion of the housing 304 of the wireless charging device 301, the processor 540 may include at least one coil among the coils 410 of the first group; At least one coil of the second group of coils 420 and/or at least one of the third group of coils 430 (eg, C1 coil, C2 coil, C3 coil, C4 coil, C5 coil, C6 coil or At least one of the C7 coils) may be used to charge the electronic device 302 .

According to various embodiments, the processor 540 may generate various messages required to wirelessly transmit power to the electronic device 302 (eg, a wireless charging receiver). The processor 540 may calculate power or an amount of power to be transmitted to the electronic device 302 .

According to various embodiments, when the electronic device 302 is disposed on top of the wireless charging device 301 , the processor 540 may include a first group of coils 410 (eg, A1 coil, A2 coil, A3 coil). , A4 coils, A5 coils and/or A6 coils), a second group of coils 420 (eg B1 coils, B2 coils, B3 coils, B4 coils, B5 coils and/or B6 coils) and a third group of coils A first ping signal and/or a second ping signal to the electronic device 302 via each of 430 (eg, C1 coil, C2 coil, C3 coil, C4 coil, C5 coil, C6 coil and/or C7 coil) A feedback signal from the electronic device 302 (eg: The type and location of the electronic device 302 may be identified through a signal strength packet (SSP) result.

According to an embodiment, the processor 540 of the wireless charging device 301 is configured to detect whether or not the electronic device 302 is disposed on the upper portion of the housing 304. In order to detect whether or not the electronic device 302 is disposed on the upper portion of the housing 304, the first group in a designated cycle or a designated pattern. The amount of change in impedance of each of the coil 410 , the second group of coils 420 , and/or the third group of coils 430 may be measured.

According to various embodiments, the processor 540 of the wireless charging device 301 may periodically transmit the first ping signal or the second ping signal to the electronic device 302 through a predetermined intensity and time. The signal strength packet (SSP) may include a predetermined signal including information on voltage, current, or frequency strength.

According to various embodiments, the first ping signal may have a transmission period of about 0.1 to 10 ms. The second ping signal may have a transmission period of about 65 to 70 ms. The first ping signal may include an analog ping signal or a Q ping signal. The second ping signal may include a digital ping signal.

According to one embodiment, the processor 540 of the wireless charging device 301 is a feedback signal in response to the first ping signal or the second ping signal (eg, a response signal, identification information, configuration information and / or SSP signal) ) from the electronic device 302 , and the presence or absence of the electronic device 302 may be detected.

According to various embodiments, the wireless charging device 301 uses an analog ping signal that is a first ping signal to determine the type of a specific object (eg, the electronic device 302 or an object of a metal component other than the electronic device). And depending on the position, for example, by detecting a change in current in any one of the first inverter 512 , the second inverter 522 , or the third inverter 532 , a specific object in the upper part of the housing 304 . It can be checked whether or not the

According to various embodiments, the wireless charging device 301 uses a Q ping signal that is a first ping signal, and the type of a specific object (eg, the electronic device 302 or an object of a metal component other than the electronic device). and depending on location, for example, the attenuation coefficient (eg, Q value) (or coupling) of at least one of the first group of coils 410 , the second group of coils 420 , or the third group of coils 430 . coefficient) and natural frequency change, it is possible to determine whether a specific object is disposed on the upper part of the housing 304 .

According to various embodiments, when it is confirmed that a specific object (eg, the electronic device 302) is disposed on the upper portion of the housing 304 through the first ping signal, the wireless charging device 301 determines that the second ping signal is The type and location of a specific object disposed on the upper portion of the housing 304 may be checked using the digital ping signal. For example, when the wireless charging device 301 transmits a digital ping signal, which is the second ping signal, to the electronic device 302 , a voltage greater than or equal to a specific value is induced in the rectification circuit 321b of the electronic device 302 , A signal strength packet (SSP) signal including the strength of the induced voltage (eg, information about the voltage value) may be transmitted to the wireless charging device 301 . The wireless charging device 301 may identify the type and location of the electronic device 302 disposed on the upper portion of the housing 304 through the transmitted SSP signal.

According to various embodiments, the processor 540 of the wireless charging device 301 is a first switch connected to the first inverter 512 based on a feedback signal (eg, an SSP signal) returned from the electronic device 302 . 514, the second switch 524 connected to the second inverter 522 and/or the third switch 534 connected to the third inverter 532 is selectively turned on, and the first group of coils ( 410), the second group of coils 420 and/or the third group of coils 430 may select respective coils to be operated for wireless charging.

According to various embodiments, when the type and location of the electronic device 302 disposed on the upper portion of the housing 304 is confirmed by the processor 540 of the wireless charging device 301 through the first ping, the electronic device ( The electronic device 302 may be charged through the selected coils while selecting coils at positions where the 302 is disposed and transmitting a second ping signal to the electronic device 302 using the selected coils.

According to various embodiments, the processor 540 of the wireless charging device 301 uses the coil having the largest value among the SSP values as the operating coil based on the feedback signal (eg, signal strength packet (SSP)). You can choose. The processor 540 may additionally determine the operation coil in consideration of ratios of SSP values to the remaining coils based on the largest value among the SSP values.

According to various embodiments, the processor 540 includes at least one of the first group of coils 410 to be operated, a first inverter 512 and a second group of coils 420 connected through a first switch 514 . operation of a second inverter 522 coupled to at least one of the second switches 524 and a third inverter 532 coupled to at least one of the third group of coils 430 through a third switch 534 . voltage can be determined.

According to various embodiments, the processor 540 of the wireless charging device 301 transmits each PWM (pulse width modulation) signal of the first inverter 512 , the second inverter 522 and the third inverter 532 to each other. They can be synchronized or controlled to operate independently. The processor 540 includes a first inverter 512 connected to at least one of the first group of coils 410 through a first switch 514 , at least one of the second group of coils 420 and a second switch 524 . ), and/or at least one of the coils 430 of the third group and a third inverter 532 connected through a third switch 534 to operate in the same phase or a different phase. can

According to various embodiments, the processor 540 of the wireless charging device 301 controls the first inverter 512 , the second inverter 522 and/or the third inverter 532 to generate different frequency band signals. can do. According to various embodiments, the processor 540 of the wireless charging device 301 is different from each other in the first group of coils 410 , the second group of coils 420 , and/or the third group of coils 430 . It is possible to control wireless power to be transmitted to the electronic device 302 .

According to various embodiments, the processor 540 of the wireless charging device 301 may control to supply the same voltage to the first inverter 512 , the second inverter 522 , and the third inverter 532 , respectively. . According to various embodiments, the processor 540 of the wireless charging device 301 may control to supply different voltages to the first inverter 512 , the second inverter 522 , and the third inverter 532 , respectively. . According to various embodiments, the processor 540 of the wireless charging device 301 based on the current values supplied to the first inverter 512, the second inverter 522 and the third inverter 532, respectively, The ratio or offset of the voltage supplied to each of the inverters may be reset.

According to various embodiments, the processor 540 of the wireless charging device 301 based on the feedback signal (eg, signal strength packet (SSP)), the first inverter 512, the second inverter 522 and through the third inverter 532, parameters (eg, frequency, phase, and voltage) respectively applied to the first group of coils 410 , the second group of coils 420 and the third group of coils 430 . at least one) can be set differently.

According to various embodiments, a first group of coils 410 (eg, A1 coils, A2 coils, A3 coils, A4 coils, A5 coils or A6 coils), a second group of coils 420 (eg B1 coils, B2 Coil, B3 Coil, B4 Coil, B5 Coil or B6 Coil), or a third group of coils 430 (eg C1 Coil, C2 Coil, C3 Coil, C4 Coil, C5 Coil, C6 Coil or C7 Coil) It may have the same properties or at least one different property. For example, the characteristics of the coil may include a diameter (eg, an inner diameter or an outer diameter), a thickness, a number of turns, or a number of layers, and may include a direction in which the coil is wound.

6 is a block diagram schematically illustrating a configuration of an electronic device according to various embodiments of the present disclosure.

Referring to FIG. 6 , an electronic device 302 according to various embodiments of the present disclosure includes a communication circuit 610 , a display 620 , a sound output unit 630 , a vibration output unit 640 , and a memory 650 . and a processor 660 .

According to various embodiments, the electronic device 302 may include the electronic device 101 of FIG. 1 , the electronic device 302 of FIGS. 3A , 3B , 3C and/or 5 .

According to various embodiments, the electronic device 302 illustrated in FIG. 6 includes a power receiver 321, a control circuit 322, a communication circuit 323, at least one sensor 324, and/or a display ( 325) may be included.

According to an embodiment, the communication circuit 610 may perform wireless communication with the communication circuit 313 of the wireless charging device 301 . The communication circuit 610 may include the communication module 190 of FIG. 1 and/or the communication circuit 323 of FIG. 3B . The communication circuit 610 may include at least one of the first communication circuit 323a and the second communication circuit 323b illustrated in FIG. 3B . The first communication circuit 323a may communicate with the first communication circuit 313a of the wireless charging device 301 using the power receiving coil 321k. The second communication circuit 323b is wireless charging using at least one of Bluetooth, Bluetooth low energy (BLE), Wi-Fi, and near field communication (NFC). It can communicate with the second communication circuitry 313b of the device 301 .

According to an embodiment, the display 620 may display various information related to wireless power reception or wireless charging of the electronic device 302 through a user interface (UI). The user interface may include a mockup display item and/or a text display item indicating the charging state of the electronic device 302 .

According to various embodiments, the display 620 may include the display device 160 of FIG. 1 and/or the display 325 of FIG. 3B . The display 620 may perform an input function and a display function. The display 620 may include a touch panel and a display unit. The display 620 may visually provide a menu of the electronic device 302 , input data, function setting information, or other various information to the user.

According to an embodiment, the sound output unit 630 may output various information related to wireless power reception or wireless charging of the electronic device 302 through sound. The sound output unit 630 may output content based on text displayed through the user interface through sound. The sound output unit 630 may include the sound output device 155 of FIG. 1 .

According to an embodiment, the vibration output unit 640 may output various information related to wireless power reception or wireless charging of the electronic device 302 through vibration. The vibration output unit 640 may include the haptic module 179 of FIG. 1 .

According to an embodiment, the memory 650 may store various information related to wireless power reception or wireless charging of the electronic device 302 . The various information may include, for example, a user interface, pop-up, mockup, and/or text.

According to various embodiments, the memory 650 may include the memory 130 of FIG. 1 . The memory 650 includes a program for processing and controlling the processor 660 of the electronic device 302 (eg, the program 140 of FIG. 1 ), an operating system (OS) (eg, the operating system of FIG. 1 ) 142)), a function of storing various applications and input/output data, and a program for controlling the overall operation of the electronic device 302 may be stored. The memory 650 may store various setting information required when the electronic device 302 processes functions related to various embodiments of the present invention.

According to an embodiment, the processor 660 may be operatively connected to the communication circuit 610 , the display 620 , the sound output unit 630 , the vibration output unit 640 , and the memory 650 . The processor 660 may control functions and operations of the communication circuit 610 , the display 620 , the sound output unit 630 , the vibration output unit 640 , and the memory 650 .

According to an embodiment, the processor 660 may determine a charging start position of the electronic device 302 with respect to the wireless charging device 301 , an additional chargeable coil of the wireless charging device 301 , an area in which a non-charging object is located, and/or Alternatively, guide information such as alignment position movement on the wireless charging device 301 for charging the electronic device 302 is output through the display 620, the sound output unit 630 and/or the vibration output unit 640. can

According to various embodiments, the processor 660 may include the processor 120 of FIG. 1 and/or the control circuit 322 of FIG. 3B . The processor 660 may control the overall operation of the electronic device 302 and signal flow between internal components, and may perform a function of processing data. The processor 660 may include, for example, a central processing unit (CPU), an application processor, and a communication processor. The processor 660 may be configured as a single core processor or a multi-core processor. The processor 660 may include a plurality of processors.

7A is a view for explaining a charging operation when an electronic device (eg, a smart phone) is disposed on an upper portion of a wireless charging device according to various embodiments of the present disclosure;

Referring to FIG. 7A , the electronic device 302 (eg, a wireless charging receiver) may be disposed on the housing 304 of the wireless charging device 301 (eg, a wireless charging transmitter) for charging. The housing 304 of the wireless charging device 301 may form an outer surface of the wireless charging device 301 , for example, as shown in FIG. 3A . The housing 304 may form the top (or top), bottom (or bottom) and side surfaces of the wireless charging device 301 . For example, the upper surface (or upper portion) may mean a surface adjacent to the wireless charging coil or a direction in which the magnetic force of the wireless charging coil is transmitted.

According to various embodiments, the processor 540 of the wireless charging device 301 is configured to detect whether the electronic device 302 is disposed on the upper portion of the housing 304, the first group of coils 410 ( Example: A1 Coil, A2 Coil, A3 Coil, A4 Coil, A5 Coil and A6 Coil), 2nd Group of Coils 420 (e.g. B1 Coil, B2 Coil, B3 Coil, B4 Coil, B5 Coil and B6 Coil) and a first ping signal to the electronic device 302 via each of the third group of coils 430 (eg, C1 coil, C2 coil, C3 coil, C4 coil, C5 coil, C6 coil and C7 coil). An analog ping signal and/or a Q ping signal) may be transmitted, and the type and location of the electronic device 302 may be identified.

Referring to FIG. 7A , the electronic device 302 is disposed above the A4 coil and A5 coil among the coils 410 of the first group and the B2 coil among the coils 420 of the second group of the wireless charging device 301 . can be For example, the power receiving coil (eg, 321k of FIG. 3B ) of the electronic device 302 is an A4 coil, an A5 coil, and a second group of coils 410 of the first group of the wireless charging device 301 . Among 420 , it may be disposed at a position corresponding to the B2 coil.

According to various embodiments, the processor 540 of the wireless charging device 301 connects the A4 coil and the A5 coil among the first inverter 512 and the first group of coils 410 through the first switch 514 . and B2 coil among the second inverter 522 and the second group of coils 420 may be connected through the second switch 524 .

According to various embodiments, the processor 540 of the wireless charging device 301 transmits an analog ping signal that is a first ping signal, and changes in the currents of the first inverter 512 and the second inverter 522 are When this occurs, it can be confirmed that the electronic device 302 is disposed on top of the A4 coil and A5 coil among the coils 410 of the first group of the wireless charging device 301 and the B2 coil among the coils 420 of the second group. have. For example, the processor 540 of the wireless charging device 301 transmits an analog ping signal that is a first ping signal, and an inverter (eg, the first inverter 512 and/or the second inverter 522). When the change amount of the current is equal to or greater than the threshold value, it may be confirmed that the electronic device 302 is disposed in the coil in which the change in current is sensed.

According to various embodiments, when the electronic device 302 is disposed above the A4 coil and the A5 coil among the coils 410 of the first group of the wireless charging device 301 , the A4 coil and the A5 coil are used for charging. , the output signals (eg phase, frequency) of the A4 coil and A5 coil may be similar. In this case, the processor 540 of the wireless charging device 301 may vary the capacitance value of the first resonant element 516 .

According to various embodiments, the processor 540 of the wireless charging device 301 transmits, for example, a Q ping signal that is a first ping signal, and the first inverter 512 and the second inverter 522 When a change in Q value (eg, at least one of an attenuation coefficient, a coupling coefficient, or a natural frequency) occurs, the electronic device 302 causes the A4 coil and A5 of the first group of coils 410 of the wireless charging device 301 to occur. It can be seen that the coil is disposed above the B2 coil among the coils 420 of the second group.

According to various embodiments, the processor 540 of the wireless charging device 301 uses each of the first group of coils 410 , the second group of coils 420 , and the third group of coils 430 . Thus, it is possible to simultaneously transmit an analog ping signal or a Q ping signal. The processor 540 of the wireless charging device 301, using each of the first group of coils 410, the second group of coils 420, and the third group of coils 430, analog ping or Q The ping signal can be transmitted by alternating periodically.

According to various embodiments, the processor 540 of the wireless charging device 301 uses each of the first group of coils 410 , the second group of coils 420 , and the third group of coils 430 . Thus, for example, by transmitting a Q ping signal, which is the first ping signal, a Q value (eg, at least one of an attenuation coefficient, a coupling coefficient, or a natural frequency) for each coil may be obtained.

According to various embodiments, the processor 540 of the wireless charging device 301, for example, as shown in Table 1 below, through a sequence of seven times, the first group of coils 410, the second group It is possible to obtain a Q value for each of the coil 420 and the third group of coils 430 .

coil group coil number One 2 3 4 5 6 7 Coils of the first group (A1 to A6) 50 50 50 36 35 50 - 2nd group of coils (B1~B6) 32 38 50 50 50 50 - 3rd group of coils (C1~C7) 50 50 50 50 50 50 50

According to various embodiments, the processor 540 of the wireless charging device 301 checks the Q value as shown in Table 1, for example, and changes the Q value to a preset value or more (eg, 35 to 38). ), it can be seen that the electronic device 302 is disposed on the upper part of the coil.

According to various embodiments, the processor 540 of the wireless charging device 301 normalizes the confirmed Q value for relative comparison of the Q values for each coil when the confirmed Q values are three or more. ) can be converted.

For example, since the processor 540 of the wireless charging device 301 may change the absolute value of the Q value depending on whether or not the electronic device 302 is in a case, as shown in Table 2 below, The position at which the electronic device 302 is disposed may be identified using a value obtained by normalizing the Q value of 1.

coil group coil number One 2 3 4 5 6 7 Coils of the first group (A1 to A6) One One One 0.22 0.16 One - 2nd group of coils (B1~B6) 0 0.33 One One One One - 3rd group of coils (C1~C7) One One One One One One One

According to various embodiments, the normalization may adjust the distribution of data by converting a range of data values into 0 and 1. Normalization may offset a change in the absolute value of the Q value depending on whether the electronic device 302 is disposed on the wireless charging device 301 by adjusting the distribution of the data. According to an embodiment, the wireless charging device 301 detects the electronic device 302 through normalization, but may not use a coil having a relatively low Q value as the wireless power transmission coil. For example, a coil having a relatively low Q value may mean that the coil of the wireless charging device 301 (eg, the coil 321k of FIG. 3B ) is not relatively aligned. The wireless charging device 301 detects the electronic device 302, but when wireless power is transmitted using a coil with a relatively low alignment (eg, misaligned), the power transmission efficiency is low and there is a high possibility of heat generation. Therefore, a coil having a relatively low alignment may not be used as a wireless power transmission coil.

According to various embodiments, the processor 540 of the wireless charging device 301 ignores 1 and 0 among the normalized values, and A4 coil and A5 among the first group of coils 410 identified as decimal points It is confirmed that the electronic device 302 is disposed above the B2 coil among the coils and the second group of coils 420 , and the A4 coil and the A5 coil, the second group of the identified first group of coils 410 . Among the coils 420 of , the B2 coil may be selected. The processor 540 of the wireless charging device 301, coils other than the A4 coil and A5 coil among the selected first group of coils 410, and the B2 coil among the second group of coils 420 are waiting for charging. It can be set to a coil (eg a non-actuating coil).

According to various embodiments, when coils (eg, A4, A5, and B2) to be used for charging the electronic device 302 are selected using the first ping signal, the processor 540 of the wireless charging device 301 is selected. ) transmits a second ping signal (eg, a digital ping signal) using the coils (eg, A4, A5, and B2) and receives an SSP signal from the electronic device 302 , to the electronic device 302 . Power can be transmitted wirelessly.

According to various embodiments, the processor 540 of the wireless charging device 301 receives the feedback signal received from the A4 coil and the A5 coil among the coils 410 of the first group, and the B2 coil among the coils 420 of the second group. The location of the electronic device 302 may be confirmed based on (eg, a signal strength packet (SSP)). For example, the processor 540 of the wireless charging device 301 may include an A4 coil and an A5 coil among the first group of coils 410 in which the electronic device 302 is disposed, and B2 of the second group of coils 420 . The coil may receive a feedback signal (eg, a signal strength packet (SSP)) equal to or greater than a specified value, and may charge the electronic device 302 based on the received feedback signal.

For example, the processor 540 of the wireless charging device 301, using the second ping signal, the selected transmission coils (eg, A4, A4, from the rectifier circuit 321b) of the electronic device 302 The SSP signal that can check the voltage (eg, a specific value) induced in A5 and B2) can be received as shown in Table 3 below.

coil Specific value of SSP signal A4 coil 32 A5 coil 31 B2 coil 36

According to various embodiments, the processor 540 of the wireless charging device 301 sets a specific value of the SSP signal for the selected transmission coils (eg, A4, A5 and B2), for example, a preset value ( Example: 30) or more, power may be wirelessly transmitted to the electronic device 302 using the selected coils (eg, A4, A5, and B2).

7B is a view for explaining a coil selection and a charging operation using the selected coil when the electronic device is disposed on the wireless charging device according to various embodiments of the present disclosure.

Referring to FIG. 7B , the processor 540 of the wireless charging device 301 may detect coils to be used for charging in the first section 710 .

According to various embodiments, in the first section 710 , the processor 540 of the wireless charging device 301 is configured to detect whether the electronic device 302 is disposed on the upper portion of the housing 304 . 1 group of coils 410 (eg A1 coils, A2 coils, A3 coils, A4 coils, A5 coils and A6 coils), second group of coils 420 (eg B1 coils, B2 coils, B3 coils, B4 coils) Coil, B5 Coil, and B6 Coil) and the third group of coils 430 (eg, C1 Coil, C2 Coil, C3 Coil, C4 Coil, C5 Coil, C6 Coil and C7 Coil) through each of the electronic device 302 . A first ping signal (eg, an analog ping signal and/or a Q ping signal) may be transmitted to the .

Referring to FIG. 7B , the processor 540 of the wireless charging device 301 may select coils detected in the second section 720 .

According to various embodiments, the processor 540 of the wireless charging device 301 is, as in the embodiment disclosed in FIG. 7A described above, the electronic device 302 is the coil 410 of the first group of the wireless charging device 301 . ) of the A4 coil and the A5 coil and the second group of coils 420, when it is detected that the coils are disposed on top of the B2 coil, in the second section 720, the coils (eg, A4, A5 and B2) are A second ping signal (eg, a digital ping signal) may be transmitted to the electronic device 302 by selection and use, and a signal strength packet (SSP) signal may be received from the electronic device 302 .

Referring to FIG. 7B , the processor 540 of the wireless charging device 301 may perform wireless charging using the selected coils (eg, A4 , A5 , and B2 ) in the third period 730 .

According to various embodiments, in the third section 730 , the processor 540 of the wireless charging device 301 uses the coils (eg, A4, A5, and B2) for receiving the SSP signal to the electronic device ( 302) wirelessly.

According to an embodiment, the first interval 710 corresponds to the ping operation 303 of FIG. 3C , and the second interval 720 corresponds to the identification & configuration operation 305 of FIG. 3C . , and the third period 730 may correspond to the power transfer operation 307 of FIG. 3C .

8 is a diagram illustrating a user interface illustrating a state in which an electronic device is disposed on an upper portion of a wireless charging device according to various embodiments of the present disclosure;

As shown in FIG. 7A , the electronic device 302 (eg, a smart phone) shows an A4 coil and an A5 coil among the first group of coils 410 of the wireless charging device 301, and a second group of coils ( 420) may include a dielectric interface 810 disposed on the upper portion of the B2 coil to initiate wireless charging.

According to various embodiments, the wireless charging device 301 wirelessly transmits to the electronic device 302 using the A4 coil and the A5 coil among the first group of coils 410 and the B2 coil among the second group of coils 420 . When transmitting power, the processor 540 of the wireless charging device 301 transmits information about the coils (eg, A4, A5, and B2) selected for wireless charging using the communication circuit 313 to the electronic device ( communication circuitry 610 of 302 .

According to various embodiments, the processor 540 of the wireless charging device 301 modulates one of the voltage, current, phase or frequency of coils (eg, A4, A5 and B2) used for wireless charging. Thereafter, the modulated signal may be transmitted to the electronic device 302 through the communication circuit 313 .

According to one embodiment, after the processor 540 of the wireless charging device 301 frequency shift keying the voltage induced in the coils (eg, A4, A5 and B2) used for wireless charging, It may be transmitted to the electronic device 302 through the communication circuit 313 .

According to various embodiments, the processor 540 of the wireless charging device 301 transmits information about coils (eg, A4, A5, and B2) used for wireless charging to Bluetooth, Bluetooth low energy; It may be transmitted to the electronic device 302 using at least one of BLE), Wi-Fi, and near field communication (NFC). The processor 540 of the wireless charging device 301, for example, using the second communication circuit 313b disclosed in FIG. 3 does not perform wireless charging of another electronic device (eg, the electronic device 102 of FIG. 1 ) , 104))). The other electronic device may include a display (eg, the display device 160 of FIG. 1 ).

According to various embodiments, when the wireless charging device 301 charges a wearable device (eg, a watch) and/or a wireless earphone, the processor 540 of the wireless charging device 301 is configured to operate the wearable device (eg, a watch). ) and/or information on coils used to charge the wireless earphone or a charging state, may be transmitted to another electronic device (eg, a smart phone and/or a tablet PC).

According to various embodiments, the processor 540 of the wireless charging device 301 is at least some of the coils 420 of the second group other than the coils (eg, A4, A5, and B2) used for wireless charging (eg: B3 coil, B4 coil, or B5 coil) and the third group of coils 430 (eg C1 coil, C2 coil, C3 coil, C4 coil, C5 coil, C6 coil, or C7 coil) are connected to other electronic devices (eg : Information indicating that a coil capable of additionally charging a wireless earphone or watch) may be transmitted to the electronic device 302 through the communication circuit 313 . According to an embodiment, the processor 540 of the wireless charging device 301 may determine the relative position information of at least one coil (eg, A1 coil to C7 coil) included in the wireless charging device 301 and whether charging is possible. Information may be transmitted to the electronic device 302 through the communication circuit 313 .

Referring to FIG. 8 , the processor 660 of the electronic device 302 according to various embodiments of the present disclosure displays the user interface 810 on the display 620 , and is being charged on the top of the wireless charging device 301 . A guide may be provided for a location of the electronic device 302 or a coil region in which additional charging is possible.

According to various embodiments, the user interface 810 may include at least one of a model display item 812 and a text display item 814 .

According to an embodiment, the model display item 812 may display a model image indicating a state (eg, FIG. 7A ) in which the electronic device 302 is disposed on the wireless charging device 301 .

According to an embodiment, the text display item 814 is based on the coils (eg, A4, A5, and B2) used for wireless charging, at least some of the coils 420 of the second group (eg, B3). Coil, B4 Coil, B5 Coil) and the third group of coils 430 (e.g. C1 Coil, C2 Coil, C3 Coil, C4 Coil, C5 Coil, C6 Coil, or C7 Coil) are connected to other electronic devices (e.g., cell phones). , a wireless earphone or watch) may include text indicating that the coil area can be additionally charged. For example, the text display item 814 may display text such as "Additional wireless charging is possible by placing another electronic device on the right side."

According to various embodiments, the processor 660 of the electronic device 302 may output content based on the text displayed through the text display item 814 through sound using the sound output unit 630 . have.

According to various embodiments, the processor 660 of the electronic device 302 may use the vibration output unit 640 to output a vibration indicating that there is the additionally chargeable coil area.

9 is a view for explaining an operation when a wireless charging device detects a non-charging object according to various embodiments of the present disclosure.

Referring to FIG. 9 , in the processor 540 of the wireless charging device 301 , a non-charging object 910 that does not require charging (eg, a metal object such as a coin) is a coil 420 of the second group. ) (eg, B1 coil, B2 coil, B3 coil, B4 coil, B5 coil, B5 coil) and a part of the third group of coils 430 (eg, C2 coil) may be detected.

According to various embodiments, the processor 540 of the wireless charging device 301 includes a second group of coils 420 (eg, B1 coils, B2 coils, B3 coils, B4 coils, B5 coils, B5 coils) and When the non-charging object 910 is disposed on a part of the third group of coils 430 (eg, C2 coil), the non-charging object 910 is a metal object (eg, a coin) that does not require charging. ) can be verified.

According to various embodiments, the processor 540 of the wireless charging device 301 includes a second group of coils 420 (eg, B1 coils, B2 coils, B3 coils, B4 coils, B5 coils, B5 coils) and A first ping signal (analog ping signal and/or Q ping signal) may be transmitted using some of the third group of coils 430 (eg, C2 coil).

According to various embodiments, the processor 540 of the wireless charging device 301 includes a second group of coils 420 (eg, B1 coils, B2 coils, B3 coils, B4 coils, B5 coils, B5 coils) and When the Q value (eg, at least one of attenuation coefficient, coupling coefficient, or natural frequency) of some of the third group of coils 430 (eg, C2 coil) is measured to be less than or equal to a specific value, the non-charging object 910 is can judge

According to various embodiments, the processor 540 of the wireless charging device 301 includes a second group of coils 420 (eg, B1 coils, B2 coils, B3 coils, B4 coils, B5 coils, B5 coils) and When a second ping signal (eg, a digital ping signal) is transmitted using a part of the third group of coils 430 (eg, C2 coil), a specific value is applied to the second inverter 522 and the third inverter 532 . When the above current change is measured, it may be determined as the non-charging object 910 .

10 is a diagram illustrating a user interface showing a state in which a non-charging object is disposed on an upper portion of a wireless charging device according to various embodiments of the present disclosure;

According to an embodiment, the wireless charging device 301 may perform wireless communication with the electronic device 302 . For example, the communication circuit 313 of the wireless charging device 301 and the communication circuit 610 of the electronic device 302 (Bluetooth), Bluetooth low energy (Bluetooth low energy; BLE), Wi-Fi (Wi-Fi) Alternatively, communication may be performed using at least one of near field communication (NFC).

According to an embodiment, the electronic device 302 may be a device registered to receive and manage state information of the wireless charging device 301 . For example, the wireless charging device 301 may transmit information to the electronic device 302 periodically or when an event (eg, object detection, charging level, charging completion, or error detection) occurs.

10 is a non-charging object 910 as disclosed in FIG. 9 , a second group of coils 420 (eg, B1 coils, B2 coils, B3 coils, B4 coils, B5 coils, B5 coil) and a user interface 810 indicating a state disposed on top of a portion (eg, C2 coil) of the third group of coils 430 .

According to various embodiments, the non-charging object 910 includes a coil 420 of the second group of the wireless charging device 301 (eg, B1 coil, B2 coil, B3 coil, B4 coil, B5 coil, B5 coil) and When disposed on top of a portion of the third group of coils 430 (eg, C2 coil), the processor 540 of the wireless charging device 301 uses the communication circuit 313 to perform a non-charging object 910 . Information on the coils (eg, B1 coil, B2 coil, B3 coil, B4 coil, B5 coil, B5 coil, and C2 coil) on which is disposed may be transmitted to the communication circuit 610 of the electronic device 302 .

According to various embodiments, the processor 540 of the wireless charging device 301 may include coils (eg, B1 coil, B2 coil, B3 coil, B4 coil, B5 coil, B5 coil, and After modulating one of voltage, current, phase, or frequency of the C2 coil), information based on the modulation result may be transmitted to the electronic device 302 through the communication circuit 313 .

According to an embodiment, the processor 540 of the wireless charging device 301 may include coils (eg, B1 coil, B2 coil, B3 coil, B4 coil, B5 coil, B5 coil, and After frequency shift keying of the voltage induced in the C2 coil), information on the frequency shift modulation may be transmitted to the electronic device 302 through the communication circuit 313 .

According to various embodiments, the processor 540 of the wireless charging device 301 may include coils (eg, B1 coil, B2 coil, B3 coil, B4 coil, B5 coil, B5 coil, and C2 coil) using at least one of Bluetooth (Bluetooth), Bluetooth low energy (BLE), Wi-Fi (Wi-Fi), or near field communication (NFC) to the electronic device 302 can be forwarded to

According to various embodiments, the processor 540 of the wireless charging device 301 may include coils (eg, B1 coil, B2 coil, B3 coil, B4 coil, B5 coil, B5 coil, and C2 coils) and some of the coils 430 of the third group (eg, A1 coils, A2 coils, A3 coils, A4 coils, A5 coils, A6 coils) and third group of coils 430 (eg C1 coils) , C3 coil, C4 coil, C5 coil, C6 coil, and C7 coil) may transmit information indicating that they are chargeable coils to the electronic device 302 . According to an embodiment, the processor 540 of the wireless charging device 301 may determine the relative position information of at least one coil (eg, A1 coil to C7 coil) included in the wireless charging device 310 and whether charging is possible. Information may be transmitted to the electronic device 302 through the communication circuit 313 .

Referring to FIG. 10 , an electronic device 302 according to various embodiments of the present disclosure displays a user interface 810 on a display 620 , and a non-charging object 910 ( 910 ) ( You can provide a guide to indicate that a coin has been placed.

According to various embodiments, the user interface 810 may include at least one of a model display item 812 and a text display item 814 .

According to an embodiment, the model display item 812 may display a model image indicating a state (eg, FIG. 9 ) in which the non-charging object 910 is disposed on the wireless charging device 301 .

According to an embodiment, the text display item 814 includes coils (eg, B1 coil, B2 coil, B3 coil, B4 coil, B5 coil, B5 coil and C2 coil) on which the non-charging object 910 is disposed. Based on that, it is possible to display text allowing the non-charging object 910 to be removed. For example, the text display item 814 may display text such as "There is a non-charging object in the center of the wireless charging device. Please remove it."

According to an embodiment, the text display item 814 includes coils (eg, B1 coil, B2 coil, B3 coil, B4 coil, B5 coil, B5 coil and C2 coil) on which the non-charging object 910 is disposed. Based on the basis, a first group of coils 410 (eg, A1 coils, A2 coils, A3 coils, A4 coils, A5 coils, or A6 coils) and some of the third group of coils 430 (eg C1 coils) , C3 coil, C4 coil, C5 coil, C6 coil, or C7 coil) may include text indicating that it is a chargeable coil region.

According to various embodiments, the processor 660 of the electronic device 302 may output content based on the text displayed through the text display item 814 through sound using the sound output unit 630 . have.

According to various embodiments, the processor 660 of the electronic device 302 uses the vibration output unit 640 to place the non-charging object 910 (eg, a coin) on the wireless charging device 301 . By repeatedly outputting a vibration informing that it has been done in a short period, it is possible to guide the removal of the non-charging object 910 from the top of the wireless charging device 301 .

According to various embodiments, when the wireless charging device 301 detects that a non-charging object 910 (eg, a coin) is disposed on the upper portion of the housing 304 , through the communication circuit 313 , the wireless charging device ( An operation of searching for an electronic device (eg, the electronic device 302 ) for guiding the removal of the non-charging object 910 may be performed on the upper part of the 301 . For example, the wireless charging device 301 is peripheral using at least one of Bluetooth (Bluetooth), Bluetooth low energy (BLE), Wi-Fi (Wi-Fi), or near field communication (NFC). may search for at least one electronic device (eg, the electronic device 302 ) of According to an embodiment, the wireless charging device 301 may select a device for guiding the removal of the non-charging object 910 based on device information among at least one found electronic device. For example, the device information may include device properties (eg, whether to include a display), previous charging history, or user account information.

11 is a view for explaining a state in which an electronic device is not aligned on top of a wireless charging device according to various embodiments of the present disclosure;

The wireless charging device 1101 disclosed in FIG. 11 may be a wireless charging transmitter capable of charging one electronic device 302 . The wireless charging device 1101 may include a power transmitter 311 , a control circuit 312 , a communication circuit 313 , and/or a sensing circuit 314 illustrated in FIG. 3B .

According to various embodiments, the wireless charging device 1101 may include first to seventh coils. The electronic device 302 may have the best wireless charging efficiency when it is aligned above the central seventh coil among the first to seventh coils. For example, the seventh coil may have a different diameter (eg, inner or outer diameter), thickness, number of turns, or number of layers than the other coils (eg, first through sixth coils). can According to an embodiment, the wireless charging device 1101 may transmit wireless power to the electronic device 302 using the seventh coil. The first to sixth coils may be used to detect a position where the electronic device 302 is placed on top of the wireless charging device 1101 .

Referring to FIG. 11 , the electronic device 302 may not be disposed on the seventh coil of the wireless charging device 1101 , but may be disposed on the fifth coil and the sixth coil that are edges. For example, the power receiving coil (eg, 321k of FIG. 3B ) of the electronic device 302 may be disposed at positions corresponding to the fifth coil and the sixth coil of the wireless charging device 1101 . In this case, the electronic device 302 may output the voltage and current values of the fifth coil and the sixth coil to be higher than preset values due to misalignment with the seventh coil that transmits wireless power.

12 is a diagram illustrating a user interface illustrating a state in which an electronic device is disposed in a non-aligned upper portion of a wireless charging device according to various embodiments of the present disclosure;

FIG. 12 shows a user interface 810 after the electronic device 302 is disposed on top of the fifth coil and the sixth coil of the wireless charging device 1101 to initiate wireless charging, as shown in FIG. 11 . can

According to various embodiments, when the wireless charging device 1101 wirelessly transmits power to the electronic device 302 using the fifth coil and the sixth coil, the processor 540 of the wireless charging device 1101 communicates Using the circuit 313 , information on coils (eg, a fifth coil and a sixth coil) used for wireless charging may be transmitted to the communication circuit 610 of the electronic device 302 .

According to various embodiments, the processor 540 of the wireless charging device 1101 modulates one of the voltage, current, phase, or frequency of coils (eg, the fifth coil and the sixth coil) used for wireless charging. ), it may be transmitted to the electronic device 302 through the communication circuit 313 .

According to an embodiment, the processor 540 of the wireless charging device 1101 performs frequency shift keying of a voltage induced in coils (eg, a fifth coil and a sixth coil) used for wireless charging. Thereafter, it may be transmitted to the electronic device 302 through the communication circuit 313 .

According to various embodiments, the processor 540 of the wireless charging device 1101 transmits information on coils (eg, a fifth coil and a sixth coil) used for wireless charging through Bluetooth and Bluetooth low energy. Energy may be transmitted to the electronic device 302 using at least one of BLE), Wi-Fi, and near field communication (NFC). According to an embodiment, the processor 540 of the wireless charging device 1101 includes relative position information of at least one coil (eg, the first coil to the seventh coil) included in the wireless charging device 1101 , the wireless charging efficiency. Information on the high coil (or location information of the coil that the electronic device needs to move) and/or information on whether to charge may be transmitted to the electronic device 302 through the communication circuit 313 .

Referring to FIG. 12 , the electronic device 302 according to various embodiments of the present disclosure displays the user interface 810 on the display 620 , and the electronic device 302 is being charged on the top of the wireless charging device 1101 . Can provide guidance on the location of

According to various embodiments, the user interface 810 may include at least one of a model display item 812 , a text display item 814 , and an indicator 1210 .

According to an embodiment, the model display item 812 may display a model image indicating a state (eg, FIG. 11 ) in which the electronic device 302 is disposed on the wireless charging device 1101 .

According to one embodiment, the text display item 814 is based on the coils (eg, the fifth coil and the sixth coil) used for wireless charging, the electronic device 302 of the wireless charging device 1101 . You can display text to align to the center (eg 7th coil). For example, the text display item 814 may display text such as "Please move the electronic device in the direction of the arrow to align it with the center of the wireless charging device."

According to one embodiment, the indicator 1210 is based on the coils (eg, the fifth coil and the sixth coil) used for wireless charging, the electronic device 302 is located in the center ( For example, an arrow to guide the movement to the 7th coil) may be included.

According to various embodiments, the processor 660 of the electronic device 302 may output content based on the text displayed through the text display item 814 through sound using the sound output unit 630 . have.

According to various embodiments, the processor 660 of the electronic device 302 uses the vibration output unit 640 to allow the electronic device 302 to move to the center (eg, the seventh coil) of the upper portion of the wireless charging device 1101 . ) may be guided to move the electronic device 302 to the center (eg, the seventh coil) of the wireless charging device 1101 by repeatedly outputting a vibration informing the non-aligned state in a short period.

13 is a view for explaining an operation when at least one electronic device and a non-charging object are disposed on top of a wireless charging device according to various embodiments of the present disclosure;

Referring to FIG. 13 , on the upper portion of the housing 304 of the wireless charging device 301 according to various embodiments of the present disclosure, an electronic device 302 (eg, a smart phone), a wireless earphone 1310 and / or a non-charging object 910 may be disposed.

In the description of FIG. 13 , the first converter 510 , the first inverter 512 , the first switch 514 , the first group of coils 410 , and the first of the wireless charging device 301 shown in FIG. 5 . Resonant element 516 , second converter 520 , second inverter 522 , second switch 524 , second group of coil 420 , second resonant element 526 , third converter 530 . , the third inverter 532 , the third switch 534 , the third group of the coil 430 , and the third resonant element 536 are the electronic device 302 (eg, a smart phone) and the wireless earphone 1310 , respectively. In order to charge the , each component may be further provided.

According to various embodiments, the first group of coils 410 , the second group of coils 420 , and the third group of coils 430 may be connected to a plurality of inverters instead of one inverter.

According to various embodiments, a plurality of coils (eg, A1 coil, A2 coil, A3 coil, A4 coil, A5 coil, and A6 coil) provided in the first group of coils 410, the second group of coils ( A plurality of coils (eg, B1 coil, B2 coil, B3 coil, B4 coil, B5 coil, and B6 coil) provided in 420 and a plurality of coils (eg, C1 coil) provided in the third group of coils 430 . , C2 coil, C3 coil, C4 coil, C5 coil, C6 coil, and C7 coil) may be disposed to cross each other to charge the electronic device 302 .

According to various embodiments, the electronic device 302 (eg, a smart phone) includes an A4 coil and an A5 coil among the coils 410 of the first group of the wireless charging device 301 , and a coil 420 of the second group of the wireless charging device 301 . It may be disposed on top of the B2 coil. For example, the coils (eg, A1 coil to C7 coil) included in the wireless charging device 301 transmit a first ping signal (eg, an analog ping signal and/or a Q ping signal) to the electronic device 302 . and the A4 coil, A5 coil, and B2 coil may identify the type and location of the electronic device 302 .

According to various embodiments, the wireless earphone 1310 may be disposed above the B6 coil among the coils 420 of the second group and the C3 coil among the coils 430 of the third group. For example, the coils (eg, A1 coil to C7 coil) included in the wireless charging device 301 transmit a first ping signal (eg, an analog ping signal and/or a Q ping signal) to the electronic device 302 . transmission, the B6 coil and the C3 coil can confirm the type and location of the wireless earphone 1310 .

According to various embodiments, the non-charging object 910 (eg, a coin) may be disposed above the C4 coil and the C7 coil among the coils 430 of the third group of the wireless charging device 301 . For example, the coils (eg, A1 coil to C7 coil) included in the wireless charging device 301 transmit a first ping signal (eg, an analog ping signal and/or a Q ping signal) to the electronic device 302 . transmission, the C4 coil and the C7 coil may check the location of the non-charging object 910 .

According to various embodiments, the order in which the wireless charging device 301 detects that the electronic device 302 (eg, a smart phone), the wireless earphone 1310, and/or the non-charging object 910 is disposed is It may be based on an order in which the electronic device 302 (eg, a smart phone), the wireless earphone 1310, or the non-charging object 910 are arranged, or a specified pattern (or order) of the wireless charging device 301 .

According to various embodiments, the wireless charging device 301 charges the electronic device 302 using the A4 coil and the A5 coil among the coils 410 of the first group and the B2 coil among the coils 420 of the second group. In addition, the wireless earphone 1310 may be charged using the B6 coil among the coils 420 of the second group and the C3 coil among the coils 430 of the third group.

According to various embodiments, the wireless charging device 301 provides information on the C4 coil and the C7 coil among the coils 430 of the third group in which the non-charging object 910 is disposed, the upper portion of the wireless charging device 301 . may be transmitted to the electronic device 302 being charged.

According to various embodiments, the processor 540 of the wireless charging device 301 includes coils used for wireless charging (eg, an A4 coil and an A5 coil among the first group of coils 410 , and a second group of coils ( 420) of the B2 coil, and the second group of the B6 coil of the 420 and the third group of the C3 coil of the 430) of Bluetooth (Bluetooth), Bluetooth low energy, Wi-Fi ( The transmission may be performed to the electronic device 302 using at least one of Wi-Fi (Wi-Fi) or near field communication (NFC).

According to an embodiment, the electronic device 302 receives the information on the coils being charged received from the wireless charging device 301 (eg, the A4 coil and the A5 coil among the first group of coils 410 , and the second group of Coil B2 of the coil 420, Coil B6 of the second group of coils 420, and Coil C3 of the coil 430 of the third group A user interface (UI) based on a C4 coil and a C7 coil among the coils 430 may be displayed through the display 620 . According to various embodiments, the processor 540 of the wireless charging device 301 is, based on the properties of the wireless earphone 1310 , B6 of the coils 420 of the second group used for charging the wireless earphone 1310 . Information on the coil and the C3 coil among the coils 430 of the third group may be transmitted to the wireless earphone 1310 or another electronic device that is being charged (eg, the electronic device 302 ). For example, in the processor 540 of the wireless charging device 301 , the wireless earphone 1310 includes a sound output unit (eg, the sound output unit 630 of FIG. 6 ), a vibration output unit (eg, the vibration output unit of FIG. 6 ) The coils used for charging the wireless earphone 1310 (eg, the second group of coils 420 ) based on whether it includes a unit 640 ) and/or a display (eg, the display 620 of FIG. Information on the B6 coil and the C3 coil among the coils 430 of the third group) may be transmitted to the wireless earphone 1310 or another electronic device that is being charged (eg, the electronic device 302 ). According to various embodiments, only the wireless earphone 1310 may be disposed on the upper portion of the housing 304 of the wireless charging device 301 for wireless charging. The electronic device 302 and the non-charging object 910 may not be disposed on the housing 304 of the wireless charging device 301 . In this case, the processor 540 of the wireless charging device 301 provides information on coils used to charge the wireless earphone 1310 or a charging state, and other electronic devices having a display (eg, a smart phone and a / or a tablet PC) for display.

The electronic device 302 charged using the wireless charging device 301 according to various embodiments of the present disclosure includes a communication circuit 610, a display 620, a power receiving coil 321k (eg, a power receiving unit), Batteries 189 and 321e, and a processor 660 operatively connected to the communication circuit 610, the display 620, the power receiving coil 321k (eg, a power receiving unit), and the batteries 189 and 321e. ), wherein the processor 660 includes at least one coil of the wireless charging device 301 used for charging the electronic device 302 (eg, an A4 coil among the first group of coils 410 ). and A5 coil, information about the B2 coil among the coils 420 of the second group) is received from the wireless charging device 301 through the communication circuit 610, and information on the received at least one coil Based on , it may be set to display the position of the electronic device 302 charged on the upper portion of the housing 304 of the wireless charging device 301 through the display 620 .

According to various embodiments of the present disclosure, the processor 660 may include a voltage of the at least one coil (eg, A4 coil and A5 coil among the first group of coils 410 , and B2 coil among the second group of coils 420 ). , current or frequency may be set to receive a modulated signal from the wireless charging device 301 through the communication circuit (610).

According to various embodiments, the communication circuit 610 may include at least one of Bluetooth, Bluetooth low energy (BLE), Wi-Fi, or near field communication (NFC). may include

According to various embodiments, the received information on the at least one coil may include at least one coil used for charging the electronic device 302 (eg, A4 coil and A5 among the first group of coils 410 ). At least one of a coil, at least one coil used for information about a B2 coil among the coils 420 of the second group, or at least one coil used for charging another electronic device (eg, a wireless earphone and/or a watch), the processor A reference numeral 660 denotes at least one coil used for charging the electronic device 302 (eg, an A4 coil and an A5 coil among the first group of coils 410 , and a B2 coil among the second group of coils 420 ). ) or the user interface 810 including information on at least one coil used for charging the other electronic device (eg, wireless earphone and/or watch) through the display 620 . can be set.

According to various embodiments, the received information on the at least one coil may include information on at least one coil used for charging the electronic device 302 or information on a coil capable of additionally charging another electronic device. at least one, wherein the processor 660 includes information on a location of the electronic device 302 or additionally chargeable coil, and the processor 660 includes a location of the electronic device 302 or additionally The user interface 810 including the position of the chargeable coil may be set to be displayed through the display 620 .

According to various embodiments, the user interface 810 may include a model display item 812 indicating a state in which the electronic device 302 is disposed on the wireless charging device 301 , or the additionally chargeable coil. may include at least one of the text display items 814 indicating

According to various embodiments, the electronic device 302 further includes a sound output unit 630 , and the processor 660 of the electronic device 302 is configured to display text displayed through the text display item 814 . It may be set to output the based content through the sound output unit 630 .

According to various embodiments, the received information on the at least one coil includes information about at least one coil in which the non-charging object 910 is disposed in the wireless charging device 301 , and the processor 660 ) may be set to display the position of the non-charging object 910 through the display 620 based on the received information on the at least one coil. According to various embodiments, the received information on the at least one coil may include information indicating that a coil other than the at least one coil in which the non-charging object 910 is disposed is capable of being charged.

According to various embodiments, the received information on the at least one coil includes a charging position set in the wireless charging device 301 and position information of the charging position and the electronic device 302, and the processor ( 660 may be set to guide the position of the electronic device 302 to be moved to the charging position based on the received information on the at least one coil.

The wireless charging device 301 according to various embodiments of the present invention includes a communication circuit 313 , a first inverter 512 , a first switch 514 electrically connected to the first inverter 512 , and a second inverter (522), a second switch (524) electrically connected to the second inverter (522), a first group of coils (410) connected to the first inverter (512) via the first switch (514), the a second group of coils 420 connected to the second inverter 522 through a second switch 524, and the communication circuit 313, the first inverter 512, the first switch 514; a processor (540) operatively coupled to the second inverter (522), the second switch (524), the first group of coils (410) and the second group of coils (420), the processor 540 detects an external object through at least one of the first group of coils 410 and/or the second group of coils 420, and the first group of coils 410, The second group of coils 420 and location information on at least one coil that has sensed the external object are transmitted to an external electronic device (eg, the electronic device 302 ) that can communicate through the communication circuit 313 . can be set to

14 is a flowchart illustrating a method of providing charge state information of an electronic device being charged using a wireless charging device according to various embodiments of the present disclosure;

The embodiment disclosed in FIG. 14 is illustrative, and may include the operations described in the embodiment of FIGS. 3A to 13 .

In operation 1410 , the processor 660 of the electronic device 302 performs at least one coil (eg, among the coils 410 of the first group) of the wireless charging device 301 used for charging the electronic device 302 . Information on the A4 coil, the A5 coil, and the B2 coil among the coils 420 of the second group) may be received from the wireless charging device.

In operation 1420, the processor 660 of the electronic device 302 receives the received at least one coil of the wireless charging device 301 (eg, an A4 coil among the coils 410 of the first group, shown in FIG. 7A , Based on the information on the A5 coil and the B2 coil among the coils 420 of the second group), the position of the electronic device 302 being charged on the upper part of the housing 304 of the wireless charging device 301 is displayed. It can be displayed through 620 .

In the above, the present invention has been described according to various embodiments of the present invention, but changes and modifications made by those of ordinary skill in the art to which the present invention pertains without departing from the technical spirit of the present invention also belong to the present invention. Of course.

301: wireless charging device 302: electronic device
410: first group of coils 420: second group of coils
430: third group of coils 610: communication circuit
620: display 630: sound output unit
640: vibration output unit 650: memory
660: processor 810: user interface

Claims (20)

In an electronic device,
communication circuit;
display;
power receiver;
battery; and
a processor operatively coupled to the communication circuitry, the display, the power receiver, and the battery;
The processor is
Receiving information about at least one coil of the wireless charging device from the wireless charging device through the communication circuit,
An electronic device configured to display the received information on the at least one coil through the display. The method of claim 1,
The processor is
An electronic device configured to receive a signal in which one of voltage, current or frequency of the at least one coil is modulated from the wireless charging device through the communication circuit. The method of claim 1,
The communication circuit is
An electronic device including at least one of Bluetooth, Bluetooth low energy, Wi-Fi, and near field communication. The method of claim 1,
The received information about the at least one coil,
At least one of information on at least one coil used for charging the electronic device or at least one coil used for charging another electronic device,
The processor is
An electronic device configured to display a user interface including information on at least one coil used for charging the electronic device or information on at least one coil used for charging the other electronic device through the display. The method of claim 1,
The received information about the at least one coil,
and at least one of information on at least one coil used for charging the electronic device or information on a coil capable of additionally charging another electronic device,
The processor is
An electronic device configured to display a user interface including a location of at least one coil used for charging the electronic device or a location of an additionally chargeable coil through the display. 6. The method of claim 5,
The user interface is
The electronic device comprising at least one of a model display item indicating a state in which the electronic device is disposed on the wireless charging device, and a text display item indicating the additionally chargeable coil. 7. The method of claim 6,
Further comprising a sound output unit,
The processor is
An electronic device configured to output content based on text displayed through the text display item through the sound output unit. The method of claim 1,
The received information about the at least one coil,
Including information about at least one coil in which a non-charging object is disposed in the wireless charging device,
The processor is configured to display the position of the non-charging object through the display based on the received information on the at least one coil. 9. The method of claim 8,
The received information about the at least one coil,
The electronic device including information indicating that a coil other than the at least one coil on which the non-charging object is disposed is a chargeable coil. The method of claim 1,
The received information about the at least one coil,
It includes a charging position set in the wireless charging device, the charging position, and position information of the electronic device,
The processor is configured to guide the position of the electronic device to be moved to the charging position based on the received information on the at least one coil. A method of providing charge state information of an electronic device being charged using a wireless charging device, the method comprising:
receiving, from the wireless charging device, information on at least one coil of the wireless charging device used for charging the electronic device; and
and displaying, through a display, a position of the electronic device being charged in an upper portion of a housing of the wireless charging device, based on the received information on the at least one coil. 12. The method of claim 11,
The method comprising: receiving, by the processor, a signal in which one of a voltage, a current, or a frequency of the at least one coil is modulated from the wireless charging device through a communication circuit. 13. The method of claim 12,
The processor, through the communication circuit, the information about the at least one coil, Bluetooth (Bluetooth), Bluetooth low energy (Bluetooth low energy), Wi-Fi (Wi-Fi) or near field communication (near field communication) at least and receiving from the wireless charging device using one. 13. The method of claim 12,
The processor includes an operation of receiving information indicating that a coil other than at least one coil used for charging the electronic device is a coil capable of additionally charging another electronic device from the wireless charging device through the communication circuit How to. 12. The method of claim 11,
The received information about the at least one coil,
Including information about the location of the electronic device being charged on the top of the wireless charging device or an additionally chargeable coil,
and displaying, by the processor, a user interface including a position of the electronic device or a position of an additionally chargeable coil through a display. 16. The method of claim 15,
The user interface is
A model display item displaying a state in which the electronic device is disposed on the wireless charging device, or
and at least one of a text display item indicating that a coil other than the at least one coil used for charging the electronic device is a coil capable of additionally charging another electronic device. 17. The method of claim 16,
The electronic device further includes a sound output unit,
The processor is
A method of outputting content based on text displayed through the text display item through the sound output unit. 12. The method of claim 11,
The received information about the at least one coil,
Including information about at least one coil in which a non-charging object is disposed in the wireless charging device,
and displaying the position of the non-charging object through the display based on the received information on the at least one coil. 12. The method of claim 11,
The received information about the at least one coil,
It includes a charging position set in the wireless charging device, the charging position, and position information of the electronic device,
and guiding, by the processor, to move the position of the electronic device to the charging position based on the received information on the at least one coil. In the wireless charging device,
communication circuit;
a first inverter;
a first switch electrically connected to the first inverter;
a second inverter;
a second switch electrically connected to the second inverter;
a first group of coils connected to the first inverter through the first switch;
a second group of coils connected to the second inverter through the second switch; and
a processor operatively coupled with the communication circuitry, the first inverter, the first switch, the second inverter, the second switch, the first group of coils and the second group of coils;
The processor is
Detecting an external object through at least one coil of the first group of coils and/or the second group of coils,
A wireless charging device configured to transmit location information on the first group of coils, the second group of coils, and at least one coil detecting the external object to an external electronic device capable of communication through the communication circuit.

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