KR20210089906A - Electronic device executing wireless power sharing function quickly and method for thereof - Google Patents

Abstract

Various embodiments of the present invention relate to an electronic device quickly executing a wireless power sharing function and a method thereof. The electronic device may comprise: a coil; a sensor; a communication circuit; a wireless power transmission circuit electrically connected to the coil; and a processor, wherein the processor: determines, by using the sensor, whether the electronic device is placed so as to face a designated direction; if the electronic device is placed so as to face the designated direction, senses proximity of an external device by using the communication circuit; if proximity of the external device is sensed, transmits a designated ping by using the wireless power transmission circuit; receives a feedback signal for the designated ping from the external device; and transmits power to the external device through the coil in response to the feedback signal. The present invention may further include various other embodiments.

Description

ELECTRONIC DEVICE EXECUTING WIRELESS POWER SHARING FUNCTION QUICKLY AND METHOD FOR THEREOF

Various embodiments of the present invention relate to an electronic device and method for quickly executing a wireless power sharing function.

In recent years, the spread of electronic devices capable of charging a battery wirelessly as well as wired is increasing.

When a wired charging device is connected, the electronic device receives power from a wired charging device to charge the battery, and when it is close to the wireless charging device, an induced current flows through the coil in a magnetic induction method to charge the battery. can

An electronic device capable of wireless charging may include a wireless power sharing function of wirelessly charging its own battery and transmitting power of the battery to an external device using a coil.

However, when the electronic device executes the wireless power sharing function, the procedure may be complicated. For example, the electronic device may execute a wireless power sharing function by performing an operation of releasing a lock state, an operation of entering a specified menu (eg, a quick menu), and an operation of selecting a battery sharing icon by a user input. have. The electronic device may wirelessly share power with an external device by turning the electronic device over by the user after the wireless power sharing function is executed.

Various embodiments of the present invention may provide an electronic device and a method thereof for quickly executing a wireless power sharing function.

An electronic device according to various embodiments of the present disclosure includes a coil, a sensor, a communication circuit, a wireless power transmission circuit electrically connected to the coil, and a processor, and the processor includes a direction in which the electronic device is designated using the sensor. determines whether the electronic device is placed facing the specified direction, and when the electronic device is placed facing the specified direction, the proximity of the external device is sensed using the communication circuit, and when the proximity of the external device is detected, the wireless power transmission circuit is used Transmit a designated ping, receive a feedback signal for the designated ping from the external device, and transmit power to the external device through the coil in response to the feedback signal.

A method for wirelessly transmitting power by an electronic device according to various embodiments of the present disclosure includes determining whether the electronic device is placed to face a specified direction using a sensor, and placing the electronic device to face the specified direction If there is, an operation of detecting the proximity of an external device using a communication circuit, an operation of transmitting a designated ping using a wireless power transmission circuit when the proximity of the external device is detected, and feedback of the designated ping from the external device The method may include receiving a signal and transmitting power to the external device through a coil in response to the feedback signal.

The recording medium in which the program for controlling the operation of the electronic device according to various embodiments of the present disclosure is recorded may include an operation of the electronic device determining whether the electronic device is placed to face a specified direction using a sensor, the electronic device When the device is placed to face the specified direction, detecting the proximity of the external device using a communication circuit, when the proximity of the external device is detected, the operation of transmitting a specified ping (ping) using a wireless power transmission circuit, the A program for receiving a feedback signal for the designated ping from an external device and transmitting power to the external device through a coil in response to the feedback signal may be recorded.

The electronic device according to various embodiments of the present disclosure may quickly execute a wireless power sharing function, thereby enhancing user convenience.

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, in accordance with various embodiments.
3 is a schematic configuration diagram of a wireless charging system according to an embodiment of the present invention.
4 is a schematic configuration diagram of a wireless charging system according to another embodiment of the present invention.
5 is a schematic configuration diagram of a wireless charging system according to another embodiment of the present invention.
6 is a schematic configuration diagram of a wireless charging system according to another embodiment of the present invention.
7 is an operation flowchart of an electronic device according to various embodiments of the present disclosure.
8 is an example illustrating a state in which an electronic device is placed to face a specified direction according to an exemplary embodiment.
9 is an example illustrating a state in which an electronic device detects proximity of an external device according to an exemplary embodiment.
10 is an example illustrating a state in which an electronic device transmits power to an external device according to an embodiment.
11 is an example illustrating a state in which an electronic device receives a specified input, according to an embodiment.
FIG. 12 may represent a timing for explaining a method in which the electronic device detects the proximity of the external device 501 using the NFC circuit.
13 may represent a timing from a charging start time to a full charging time of the wireless charging system according to an embodiment.
14 is a conceptual diagram for explaining a concept of a charging circuit in an electronic 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 nonvolatile 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 sound may be output through the electronic device 102 (eg, a speaker or a headphone).

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 designated protocols that may be used for 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 chosen. 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.

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.

The various embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of 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 “B; or at least one of 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 such components, and refer to those components in other aspects (e.g., importance or order) is not limited. that one (e.g. first) component is "coupled" or "connected" to another (e.g. 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 created 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.

FIG. 2 is a block diagram 200 of a power management module (eg, 188 in FIG. 1 ) and a battery (eg, 189 in FIG. 1 ), according to various embodiments. Referring to FIG. 2 , the power management module 188 may include a charging circuit 210 , a power regulator 220 , or a 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 20W 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 of , and the battery 189 may be charged using the selected charging method. The external power source may be connected by wire through a connection terminal (eg, 178 ) or wirelessly through an antenna module (eg, 197 ).

The power regulator 220 may generate a plurality of powers having different voltages or different current levels by adjusting the voltage level or current level of power supplied from the external power source or the 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 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 of the battery 189 (eg, battery capacity, number of times of charging and discharging, voltage, or 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 determining state of charge information related to charging (eg, lifespan, overvoltage, undervoltage, overcurrent, overcharge, overdischarge, overheating, short circuit, or swelling), and based at least in part on the determined state of charge information, the battery After determining whether the abnormal state or the normal state of 189 is determined, if the abnormal state is determined, the charging of the battery 189 may be adjusted (eg, charging current or voltage is reduced, or charging is stopped). According to , at least some of the functions of the power management module 188 may be performed by an external control device (eg, the processor 120 ).

Battery 189 may include, for example, a battery protection circuit module (PCM) 240 . The battery protection circuit 240 may perform various functions (eg, a pre-blocking function) to prevent deterioration or burnout of the battery 189 . The battery protection circuit 240 is additionally or in alternative to, a battery management system (BMS) for balancing cells, measuring the capacity of a battery, measuring the number of times of charging and discharging, measuring a temperature, or measuring a voltage ))).

According to an embodiment, at least a portion of the use state information or the charge state information of the battery 189 is a corresponding sensor (eg, temperature) among the fuel gauge 230 , the power management module 188 , or the sensor module 276 . sensor) can be used. In this case, 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 140 or is a separate device adjacent to the battery 189 . can be placed in

3 is a schematic configuration diagram of a wireless charging system according to an embodiment of the present invention.

Referring to FIG. 3 , the wireless charging system according to an embodiment includes an electronic device 301 (eg, the electronic device 101 of FIG. 1 ) as a wireless power transmitting device, or an external device 302 as a wireless power receiving device ( For example, the electronic device 102 of FIG. 1 ) may be included.

The electronic device 301 (eg, a wireless power transmission device) according to an embodiment is an electronic device 301 including a wireless power sharing function (or a wireless power transmission function), and may be, for example, a smartphone.

The external device 302 (eg, a wireless power receiving device) according to an embodiment is an electronic device 301 including a wireless battery charging function (or a wireless power receiving function), and may be, for example, a wearable device.

In the electronic device 301 according to an embodiment, a coil (not shown) is formed inside the housing, and when the wireless power sharing function is executed (or activated), the power of the battery (eg, 189 in FIG. 1 ) is transferred to the outside through the coil. device 302 . A method in which the electronic device 301 executes the wireless power sharing function will be described in detail later with reference to FIG. 7 .

4 is a schematic configuration diagram of a wireless charging system according to another embodiment of the present invention.

Referring to FIG. 4 , an electronic device 301 (eg, a wireless power transmitter) according to another embodiment may further include the same, similar, or different embodiment as the electronic device 301 illustrated in FIG. 3 . According to the illustrated embodiment, the electronic device 301 may execute a wireless power sharing function while being connected to the wired charging device 401 (eg, travel adapter, TA). When the wired charging device 401 is connected, the electronic device 301 charges the battery based on the power supplied from the wired charging device 401 and/or transmits power to the external device 302 through the coil. can

5 is a schematic configuration diagram of a wireless charging system according to another embodiment of the present invention.

Referring to FIG. 5 , an electronic device 301 (eg, a wireless power transmitter) according to another embodiment may further include the same, similar, or different embodiment as the electronic device 301 illustrated in FIG. 3 . According to the illustrated embodiment, the external device 501 is an electronic device 501 of the same or similar type to the electronic device 301 , and may be, for example, a smartphone.

6 is a schematic configuration diagram of a wireless charging system according to another embodiment of the present invention.

Referring to FIG. 6 , an electronic device 301 (eg, a wireless power transmitter) according to another embodiment may further include the same, similar, or different embodiment as the electronic device 301 illustrated in FIG. 3 . According to the illustrated embodiment, the electronic device 301 may execute a wireless power sharing function while being connected to a wired charging device (eg, travel adapter: TA). When the wired charging device 401 is connected, the electronic device 301 charges the battery based on the power supplied from the wired charging device 401 and/or transmits power to the external device 501 through a coil. can

An electronic device (eg, 301 of FIG. 3 ) according to various embodiments of the present disclosure includes a coil, a sensor, a communication circuit (eg, 190 of FIG. 1 ), and a wireless power transmission circuit electrically connected to the coil (eg, FIG. 14 ) 1430), and a processor (eg, 120 in FIG. 1 ), wherein the processor 120 determines whether the electronic device 301 is placed to face a specified direction using the sensor, and the electronic device ( When the 301) is placed to face the specified direction, the proximity of the external device 302 or 501 is detected using the communication circuit 190, and when the proximity of the external device 302 or 501 is detected, the wireless power Transmits a designated ping using the transmission circuit 1430, and a feedback signal for the designated ping from the external device (eg, 302 in FIG. 3 or 501 in FIG. 5) (eg, 1222, 1223 in FIG. 12) and transmit power to the external device 302 or 501 through the coil in response to the feedback signals 1222 and 1223 . When the designated direction includes a direction of gravity, and the processor 120 is placed so that the display of the electronic device 301 faces the direction of gravity, the processor 120 uses the communication circuit 190 to send the external device 302 or 501 can detect the proximity of The sensor may include at least one of a proximity sensor, an illuminance sensor, a touch sensor, an acceleration sensor, and a gyroscope. The communication circuit 190 may be a short-range communication circuit. The short-range communication circuit may include at least one of a near field communication (NFC) circuit, a Bluetooth circuit, and/or a Wi-Fi aware circuit. The short-range communication circuit includes a near field communication (NFC) circuit, and the processor 120 generates an NFC short pulse by activating the NFC circuit when the electronic device 301 is placed to face the designated direction. and, when an impedance change greater than a threshold value is sensed in the NFC coil electrically connected to the NFC circuit when the NFC short pulse occurs, it may be determined that the external device 302 or 501 is close. When the processor 120 determines that the external device 302 or 501 is close, the processor 120 controls the NFC circuit to enter an NFC RF Discovery mode including a Poll phase and a Listen phase, and the NFC circuit performs the Listen phase. During the phase, the designated ping may be transmitted by controlling the wireless power transmission circuit 1430 . The short-range communication circuit includes a Bluetooth circuit, and the processor 120, based on a received signal strength indication (RSSI), received from the external device 302 or 501 through the Bluetooth circuit. Thus, it is possible to determine whether the external device 302 or 501 is in proximity. The short-range communication circuit includes a Wi-Fi aware circuit based on neighbor awareness networking (NAN), and the processor 120 transmits and receives a designated signal to and from the external device 302 or 501 through the Wi-Fi aware circuit. Whether or not the external device 302 or 501 is in proximity may be determined based on a time of flight (ToF). The feedback signals 1222 and 1223 may include a signal strength packet (SSP) of the external device 302 or 501 . The processor 120 may receive the designated input from the user and transmit the designated ping using the wireless power transmission circuit 1430 in response to the designated input. The processor 120 may transmit the designated ping based on the designated input even if the proximity of the external device 302 or 501 is not detected.

A method for wirelessly transmitting power by an electronic device 301 according to various embodiments of the present disclosure includes an operation of determining whether the electronic device 301 is placed to face a specified direction using a sensor, and the electronic device 301 ) is placed to face the specified direction, the operation of detecting the proximity of the external device 302 or 501 using the communication circuit 190, when the proximity of the external device 302 or 501 is detected, a wireless power transmission circuit Transmitting a designated ping using 1430, receiving feedback signals 1222 and 1223 for the designated ping from the external device 302 or 501, and the feedback signals 1222 and 1223 and transmitting power to the external device 302 or 501 through a coil in response. The method may further include, when the display of the electronic device 301 is placed to face the gravitational direction, determining that the electronic device 301 is placed to face the specified direction. The communication circuit 190 includes a near field communication (NFC) circuit, and the operation of detecting the proximity of the external device 302 or 501 using the communication circuit 190 includes the electronic device 301 being the designated When placed to face the direction, the operation of activating the NFC circuit to generate an NFC short pulse, and when an impedance change is detected in the NFC coil electrically connected to the NFC circuit when the NFC short pulse occurs, the external device ( 302 or 501) may include an operation of determining that it is close. When it is determined that the external device 302 or 501 is close, controlling the NFC circuit to enter the NFC RF Discovery mode including a Poll phase and a Listen phase, and the wireless power while the NFC circuit is in the Listen phase The method may further include controlling the transmission circuit 1430 to transmit the designated ping. The communication circuit 190 includes a Bluetooth circuit, and the operation of detecting the proximity of the external device 302 or 501 using the communication circuit 190 includes the external device 302 or 501 through the Bluetooth circuit. and determining whether the external device 302 or 501 is in proximity based on a received signal strength indication (RSSI) received from the 501 . The communication circuit 190 includes a Wi-Fi aware circuit based on neighbor awareness networking (NAN), and the operation of detecting the proximity of the external device 302 or 501 using the communication circuit 190 includes the Wi-Fi aware circuit. determining whether or not the external device 302 or 501 is in proximity based on a Time of Flight (ToF) required to transmit and receive a specified signal to and from the external device 302 or 501 through a Fi aware circuit can The feedback signals 1222 and 1223 may include a signal strength packet (SSP) of the external device 302 or 501 .

In the recording medium in which a program for controlling the operation of the electronic device 301 according to various embodiments of the present invention is recorded, the electronic device 301 uses a sensor to record the electronic device ( Determining whether the electronic device 301 is placed to face a specified direction, or detecting proximity of the external device 302 or 501 using the communication circuit 190 when the electronic device 301 is placed to face the specified direction , when the proximity of the external device 302 or 501 is detected, transmitting a designated ping using the wireless power transmission circuit 1430, a feedback signal for the designated ping from the external device 302 or 501 A program may be recorded to perform an operation of receiving 1222 and 1223 and an operation of transmitting power to the external device 302 or 501 through a coil in response to the feedback signals 1222 and 1223 .

7 is an operation flowchart of an electronic device according to various embodiments of the present disclosure. 8 is an example illustrating a state in which an electronic device is placed to face a specified direction according to an exemplary embodiment. 9 is an example illustrating a state in which an electronic device detects proximity of an external device according to an exemplary embodiment. 10 is an example illustrating a state in which an electronic device transmits power to an external device according to an embodiment. 11 is an example illustrating a state in which an electronic device receives a specified input, according to an embodiment.

Hereinafter, the operation of the electronic device according to various embodiments will be described in detail with reference to the flowchart of FIG. 7 and FIGS. 8 to 11 .

In operation 710 , the electronic device 301 according to an embodiment may determine whether the electronic device 301 is placed to face a specified direction using a sensor (eg, the sensor module 176 of FIG. 1 ).

In an embodiment, the sensor 176 may include at least one of a proximity sensor, an illumination sensor, a touch sensor, an acceleration sensor, or a gyroscope.

Referring to FIG. 8 , in an embodiment, the designated direction may be a direction of gravity (eg, a direction ① in FIG. 8 ). For example, the electronic device 301 may detect whether the display (eg, the display device 160 of FIG. 1 ) is placed in the direction of gravity using the sensor 176 . When the electronic device 301 is placed so that the display 160 faces in the direction of gravity, the coil inside the electronic device 301 (eg, 1425-1 in FIG. 14 ) moves in the opposite direction to gravity (eg, the direction ② in FIG. 8 ) can be directed towards If the display 160 is placed to face the direction of gravity (eg, the direction ① in FIG. 8 ), the electronic device 301 may determine that the electronic device 301 is placed to face the specified direction.

In operation 720 , when the electronic device 301 according to an embodiment determines that the electronic device 301 is positioned to face a specified direction (eg, (eg, direction ① in FIG. 8 )) (eg, in operation 710 ). If the result is 'Yes'), the external device 501 (eg, the electronic device 102 of FIG. 1 ) enters a sensing mode (eg, power sharing sensing mode) and uses a communication circuit (eg, the communication module 190 of FIG. 1 ). ))) In an embodiment, in a sensing mode (eg, power sharing sensing mode), the electronic device 301 performs a short-range communication connection (eg, NFC, BT/BLE, or Wi-Fi aware). connectivity) function may mean a mode (or state) of detecting whether the external device 501 is close to the electronic device 301 .

Referring to FIG. 9 , the electronic device 301 according to an embodiment may activate the communication circuit 190 based on determining that the electronic device 301 is positioned to face a specified direction. The communication circuit 190 may include a short-range communication circuit for accessing the short-range wireless communication network 198 (eg, the first network 198 of FIG. 1 ). The electronic device 301 may detect the external device 501 by communicating with the external device 501 through the short-range wireless communication network 198 .

In an embodiment, the short-range communication circuit may be a low-power short-range communication circuit based on neighbor awareness networking (NAN) or a low-power short-range communication circuit other than NAN. The NAN-based low-power short-range communication circuit may include a Wi-Fi aware circuit. Low-power short-range communication circuits other than NAN are Bluetooth, BLE (bluetooth low energy), NFC (near field communication), Wi-Fi direct, GNSS (global navigation satellite system), zigbee, infrared communication (infrared data association (IrDA), radio frequency identification (RFID), ad-hoc, ultra wideband (UWB), and/or hotspot)).

In operation 730 , the electronic device 301 according to an embodiment may detect the proximity of the external device 501 . For example, when the electronic device 301 detects the external device 501 by communicating with the external device 501 through the short-range wireless communication network 198, it can detect whether the external device 501 approaches within a specified distance. have.

In an embodiment, the short-range communication circuit may be an NFC circuit (or an NFC module), and the electronic device 301 may detect the proximity of the external device 501 using the NFC circuit. For example, when the electronic device 301 is placed to face the specified direction (eg, the direction of gravity), the electronic device 301 activates the NFC circuit to generate an NFC short pulse (eg, 1211 in FIG. 12 ). can The electronic device 301 may determine that the external device 501 is close when an impedance change greater than or equal to a threshold is sensed in an NFC coil (not shown) electrically connected to the NFC circuit when the NFC short pulse 1211 occurs. A method in which the electronic device 301 detects the proximity of the external device 501 using the NFC circuit will be described in detail later with reference to FIG. 12 .

In another embodiment, the short-range communication circuit may be a Bluetooth circuit (or a Bluetooth module), and the electronic device 301 may detect the proximity of the external device 501 using the Bluetooth circuit. For example, the electronic device 301 measures a received signal strength indication (RSSI) of a signal received from the external device 501 through short-range communication based on a Bluetooth circuit, and based on the measured RSSI, the external device It is possible to determine whether the proximity of 501 . For example, when the measured RSSI is equal to or greater than a threshold, the electronic device 301 may determine that the external device 501 approaches within a specified distance.

In another embodiment, the short-range communication circuit may be a NAN-based Wi-Fi aware circuit (or a Wi-Fi aware module, or a Wi-Fi module), and the electronic device 301 uses the Wi-Fi aware circuit to Proximity of the external device 501 may be detected. For example, the electronic device 301 may transmit/receive at least one designated signal to and from the external device 501 through short-range communication based on a Wi-Fi aware circuit. The electronic device 301 may measure a time of flight (ToF) required to transmit/receive the at least one designated signal, and determine whether the external device 501 is close to each other based on the measured ToF. For example, when the measured ToF value is equal to or less than a threshold, the electronic device 301 may determine that the external device 501 approaches within a specified distance.

In operation 740 , the electronic device 301 according to an embodiment enters a ping mode (eg, a power sharing ping mode) when it is determined that the external device 501 is close (eg, the result of operation 730 is 'Yes') to activate the wireless power transmission circuit (eg, the charging circuit 1430 of FIG. 14 ). In an embodiment, the ping mode (eg, power sharing ping mode) is a designated ping (eg, shown in FIG. 12 ) for the electronic device 301 to detect the presence of a wireless power receiving device by activating a wireless power transmission circuit. 1221) may mean a mode (or state) of transmitting. The electronic device 301 according to an embodiment may start a procedure for executing a wireless power sharing function by entering a ping mode.

Referring to FIG. 10 , when it is determined that the external device 501 is close to the electronic device 301 , the electronic device 301 transmits a designated ping (eg, 1221 in FIG. 12 ) by activating a wireless power transmission circuit. can do. The designated ping may include an analog ping and/or a digital ping for detecting the presence of a wireless power receiving device defined in a wireless power consortium (WPC) standard. In another embodiment, the designated ping may be a signal based on another standard (eg, alliance for wireless power (A4WP)) or a signal according to a non-standard, in which case the designated ping is used to detect the presence of a wireless power receiver. It may be a designated packet transmitted by the electronic device 301 .

In operation 750 , the electronic device 301 according to an embodiment may check whether a feedback signal related to wireless charging (eg, 1222 and 1223 of FIG. 12 ) is received from the external device 501 . The feedback signal may be a response signal of the external device 501 to a designated ping transmitted by the electronic device 301 and at least one designated packet for charging setting. For example, the feedback signal may be a signal strength packet (SSP) indicating the strength of power received from the external device 501 . The feedback signal may include an identification packet and a configuration packet (eg, 1222 of FIG. 12 ) that the electronic device 301 and the external device 501 transmit and receive with each other. Transmission and reception of a feedback signal, eg, a designated packet, by the electronic device 301 with the external device 501 according to various embodiments of the present disclosure will be described in detail below with reference to FIG. 13 .

In operation 760 , when the electronic device 301 and the external device 501 complete mutual charging setting through the feedback signal (eg, the result of operation 730 is 'Yes') '), a power transmission mode (eg, power sharing active mode) may be entered to transmit power through the coil. In an embodiment, the power transmission mode may refer to a mode (or state) in which the electronic device 301 transmits power based on a result of the charging setting through a coil. For example, the power transmitted by the electronic device 301 may be based on a feedback signal, for example, a configuration packet transmitted/received between the electronic device 301 and the external device 501 .

In operation 770 , the electronic device 301 according to an embodiment may receive a specified input. The electronic device 301 may branch to operation 740 based on the specified input to activate a wireless power transmission circuit to execute a wireless power sharing function.

Referring to FIG. 11 , a designated input according to an embodiment may be a user input 1101 for a designated button 811 of the electronic device 301 . For example, the designated button 811 may be a physical button disposed on the side of the electronic device 301 .

In another embodiment, the designated input may be a designated touch input for the display 160 ^{, a voice command based on an artificial intelligence application (eg, Bixby TM} ), or command data received from an external server.

In the electronic device 301 according to various embodiments, a short-range communication circuit is automatically activated by detecting that the electronic device 301 is placed in a specified direction, and the proximity of the external device 501 through the short-range communication circuit is detected. When detected, the wireless power sharing function can be executed. The electronic device 301 according to various embodiments may quickly execute the wireless power sharing function by simplifying a pre-operation for executing the wireless power sharing function.

FIG. 12 may show timing for explaining a method in which the electronic device 301 detects the proximity of the external device 501 using the NFC circuit.

In FIG. 12 , a timeline indicated by reference numeral '1210' may indicate a sequence of signals output from the NFC circuit of the electronic device 301 . In FIG. 12 , a timeline indicated by reference numeral '1220' may indicate a sequence of signals output from a wireless power transmission circuit (eg, the charging circuit 1430 of FIG. 14 ) of the electronic device 301 .

Referring to FIG. 12 , at a time point 1201 , the electronic device 301 (eg, the electronic device 101 of FIG. 1 ) according to an embodiment may detect that it is placed in a specified direction. The electronic device 301 may activate the NFC circuit in response to detecting being placed in a specified direction. The electronic device 301 may generate an NFC short pulse 1211 through the NFC circuit. The NFC short pulse 1211 is a signal for detecting the external device 501 , and the electronic device 301 may generate the NFC short pulse 1211 at a first specified period.

At time point 1202 , when the NFC short pulse 1211 occurs, the electronic device 301 may detect that an impedance change greater than or equal to a threshold is sensed in an NFC coil (not shown) electrically connected to the NFC circuit. The electronic device 301 may determine that the external device 501 approaches within a specified distance when an impedance change greater than or equal to a threshold is sensed in the NFC coil.

In an embodiment, when the electronic device 301 determines that the external device 501 is close, the electronic device 301 controls the NFC circuit to enter an NFC RF Discovery Loop (or NFC RF Discovery mode) including a Poll phase and a Listen phase. can do. The electronic device 301 may transmit the NFC polling signal 1212 at the second designated period in the Poll phase period and transmit no signal in the Listen phase period. In one embodiment, the second specified period in which the NFC polling signal 1212 is generated may be shorter than the first specified period in which the NFC short pulse is generated.

At time point 1203, the electronic device 301 according to an embodiment may activate the wireless power transmission circuit while the NFC circuit is in the listen phase. The electronic device 301 may transmit a designated ping 1221 through the wireless power transmission circuit. The designated ping 1221 may include an analog ping and/or a digital ping for detecting the presence of a wireless power receiving device specified in a wireless power consortium (WPC) standard.

At time point 1204 , the electronic device 301 according to an embodiment may receive a feedback signal related to wireless charging from the external device 501 . The feedback signal may be a response signal of the external device 501 to the designated ping transmitted by the electronic device 301 . For example, the feedback signal may be a signal strength packet (SSP) indicating the strength of power received from the external device 501 . The feedback signal may further include an identification packet and a configuration packet 1222 that are transmitted/received between the electronic device 301 and the external device 501 .

When the electronic device 301 according to an embodiment receives a feedback signal related to wireless charging from the external device 501, it may control the NFC circuit to no longer transmit the NFC polling signal 1212 in the Poll phase period. have.

The electronic device 301 according to an embodiment enters a power transmission mode (eg, a power sharing active mode) when a mutual charging setting between the electronic device 301 and the external device 501 is completed through the feedback signal. to transmit power 1223 through the coil.

13 may represent a timing from a charging start time to a full charging time of the wireless charging system according to an embodiment.

In this document, the Tx device may be the same or similar wireless power transmission device to the electronic device 101 illustrated in FIG. 1 and the electronic device 301 illustrated in FIGS. 3 to 6 . The Rx device may be the same or similar wireless power receiving device to the external device 302 or the external device 501 illustrated in FIGS. 3 to 6 . Hereinafter, it will be described that the Tx device is the electronic device 301 and the Rx device is the external device 501 .

Referring to FIG. 13 , at time t1 , a Tx device (eg, 301 in FIG. 5 ) activates a communication circuit in response to detecting being placed in a specified orientation, and uses the communication circuit to activate an Rx device (eg, 501 in FIG. 5 ) ) can be detected. The Tx device (eg, 301 in FIG. 5 ) activates a wireless power transfer circuit (eg, the charging circuit 1430 in FIG. 14 ) based on detecting the proximity of the Rx device (eg, 501 in FIG. 5 ), and the A designated ping, such as an analog ping, may be transmitted through the wireless power transfer circuit. The Tx device 301 may detect whether the Rx device 501 is located on an interface surface (eg, an active area) by generating a designated ping. The Tx device 301 may generate a designated ping at a designated period. For example, the Tx device 301 may generate a designated ping with a period of 400 ms. The above figures are exemplary and may be changed based on device/user settings.

At time points t2 and t3, the Tx device 301 may detect that the Rx device 501 is placed on the Tx device 301 (eg, an interface surface (eg, active area)) by a designated ping. When the Tx device 301 detects the release of the Rx device 501, it may no longer generate the designated ping.

At time t4 , the Tx device 301 may transmit a power signal, eg, a digital ping, to the Rx device 501 .

According to various embodiments, from time t1 to time t4 may be defined as the first phase of wireless charging.

At time t5, the Rx device 501 may boot the wireless power receiving circuit by the power signal (eg, digital ping) transmitted by the Tx device 301 .

At time t6 , the Rx device 501 may transmit a signal strength packet (SSP) indicating the strength of the power signal to the Tx device 301 . The Tx device 301 may stop transmitting the power signal and re-transmit the analog ping if the SSP is not received within a predetermined time from the time when the power signal is first transmitted.

According to various embodiments, from time t5 to time t6 may be defined as the second phase of wireless charging.

At time t7, the Tx device 301 may enter a third phase, eg, identification & configuration phase, in response to receiving the SSP from the Rx device 501 . For example, the Tx device 301 and the Rx device 501 may transmit/receive at least one designated packet for wireless charging setup. In one embodiment, the designated packet may include an identification packet or a configuration packet.

At time t8 , when identification and charging setup between the Tx device 301 and the Rx device 501 is completed, the Rx device 501 may transmit a control error packet (CEP) to the Tx device 301 for the first time. The Tx device 301 may transmit power wirelessly based on the received CEP.

At time t8, the Rx device 501 may transmit an interrupt INT indicating that a power management integrated circuit (PMIC) is activated and charging starts to an application processor (AP). In another embodiment, an operation in which the PMIC internally transmits an interrupt INT to the processor of the Rx device 501 may be omitted.

According to various embodiments, a period during which the Tx device 301 wirelessly transmits power after time t8 may be defined as a fourth phase, for example, a power transfer phase.

At time t9, the battery of the Rx device 501 may be fully charged.

At time t10 , the processor of the Rx device 501 may transmit a full packet, for example, a power hold packet (PHP), to the Tx device 301 using in-band communication or out-band communication. The Tx device 301 may stop transmitting power in response to receiving a full packet, for example PHP.

14 is a conceptual diagram illustrating a concept of a charging circuit in an electronic device according to various embodiments of the present disclosure;

The electronic device 1401 shown in FIG. 14 may further include the same, similar, or different embodiment to the electronic device 101 shown in FIG. 1 and the electronic device 301 shown in FIGS. 3 to 6 .

Referring to FIG. 14 , the electronic device 1401 (eg, the electronic device 101 of FIG. 1 ) according to various embodiments includes a battery 1410 (eg, the battery 189 of FIG. 1 ) and a wired interface 1421 . ), a wireless interface 1425 , and/or a charging circuit 1430 .

According to an embodiment, the battery 1410 may be mounted in a housing (not shown) of the electronic device 1401 and may be rechargeable. The battery 1410 may include, for example, a lithium-ion battery, a rechargeable battery, and/or a solar battery.

According to an embodiment, the wired interface 1421 and the wireless interface 1425 may be mounted on a part of the housing of the electronic device 1401 and may be connected to an external device, respectively. The wired interface 1421 includes, for example, a universal serial bus (USB) connector 1421-1, and may be connected to the first external device 1402 by wire through the connector 1421-1, USB charging, and / or an interface for supplying on the go (OTG) power, or a wired charging device (travel adapter (TA), or a battery pack) may be connected. The air interface 1425 includes a coil 1425-1 (also referred to as a 'conductive pattern') (eg, one or more loop antennas 417 of FIG. 4 ) and a transmit/receive integrated chip (TRX IC) 1425-2. and may wirelessly transmit/receive power to and from the second external device 1403 through the conductive pattern 1425 - 1 and the TRX IC 1425 - 2 . Wireless power may transmit and receive power using a magnetic field inductive coupling method, a resonant coupling method, or a wireless power transmission method of a mixture thereof. According to an embodiment, the conductive pattern 1425 - 1 may include a first conductive pattern for transmitting wireless power and a second conductive pattern for receiving wireless power.

According to an embodiment, the first external device 1402 is an external device connectable in a wired manner, and may be a wired charging device or a wired power receiving device. The wired power receiving device may be an on the go (OTG) device. The OTG device may be a device connected to the electronic device 1401 and receiving power, such as a mouse, a keyboard, a USB memory, and an accessory. The electronic device 1401 may operate in an OTG mode in which external power is supplied through the USB terminal. The wired charging device may be a device for supplying power to the electronic device 1401 through a wired connection such as a travel adapter (TA). The wired power receiver may be connected by a wire to receive power from the electronic device 1401 and use it as an internal power source, and may charge other batteries provided in the wired power receiver. According to an embodiment, the first external device connected to the electronic device 1401 through the wired interface 1421 supports a wired high voltage (HV) device (eg, adaptive fast charge (AFC) or quick charge (QC)). device) may be included. When the wired HV device is connected to the connector, power of a higher voltage (eg, 9v) than the voltage (eg, 5v) supplied from the battery 1410 may be supplied to or received from the wired HV device.

According to an embodiment, the second external device 1403 may include a wireless power supply device or a wireless power receiver device. According to various embodiments, the wireless power supply device may be a device that wirelessly supplies power to the electronic device 1401 using the first conductive pattern, such as a wireless charging pad. The wireless power receiver may receive wireless power supplied from the electronic device 1401 using the second conductive pattern, and may use the received power to charge another battery included in the wireless power receiver. According to an embodiment, the second external device 1403 connected to the electronic device 1401 through the wireless interface 1425 is a wireless high voltage (HV) device (eg, adaptive fast charge (AFC), quick charge (QC)). devices that support it). According to an embodiment, the wireless HV device may include a wireless charging pad supporting fast charging. The wireless charging pad communicates with the TRX IC 1425-2 through inband communication to determine whether to perform fast charging, or to determine whether to perform fast charging using a separate communication module (Bluetooth, or Zigbee). can For example, the electronic device 1401 may request, for example, 9V high voltage (HV) charging from the wireless charging pad through the TRX IC 1425 - 2 , and the wireless charging pad may request HV charging from the electronic device 1401 . Accordingly, it is possible to check whether fast charging is possible through communication with the electronic device 1401 . When it is confirmed that fast charging is possible, the wireless charging pad may supply 9V of power to the electronic device 1401 side.

According to an embodiment, the charging circuit 1430 may be electrically connected to the battery 1410 , a wired interface 1421 and a wireless interface 1425 , the battery 1410 and a wired interface 1421 , and the battery 1410 . ) and the wireless interface 1425, respectively. The charging circuit 1430 may electrically connect the battery 1410 and a conductive pattern (eg, a first conductive pattern) to wirelessly transmit power to the second external device 1403 (eg, a wireless power receiving device), and wirelessly It may be configured to transmit power to the outside and at the same time electrically connect the battery 1410 and the connector to transmit power to the first external device 1402 (eg, a wired power receiving device) by wire. For example, the charging circuit 1430 changes the first power generated by the battery 1410 to a second power higher than the first power to convert the third power that is at least a part of the second power to the first conductive pattern. may be transmitted to the wireless power receiving device through the wireless power receiver, and at least another part of the second power may be transmitted to the OTG device or the wired power receiving device through the connector.

According to one embodiment, the charging circuit 1430 includes the interface controller 1429 , the first switch 1432 , the second switch 1434 , the control logic 1436 , the switch group 1438 , and/or the charging switch 1439 . ) may be included.

According to an embodiment, the interface controller 1429 may determine the type of the first external device 1402 connected to the wired interface 1421 and perform adaptive fast charge (AFC) communication with the first external device 1402 . You can determine whether it supports fast charging. According to an embodiment, the interface controller 1429 may include a micro usb interface IC (MUIC) or a fast charging (eg, adaptive fast charge (AFC), quick charge (QC)) interface. For example, the MUIC may determine whether the first external device 1402 connected to the wired interface 1421 is a wired charging device or a wired power receiving device. For example, the fast charging interface may determine whether to support fast charging through communication with the first external device 1402 . When fast charging is supported, the first external device 1402 may increase transmission/reception power. For example, if the first external device 1402 is a wired charging device that typically transmits power of about 10W (5V/2A), if fast charging is supported, about 15W (9V/1.6V) (or about 18W) (eg 9V/2A)).

According to an embodiment, the first switch 1432 may include at least one or more switches, and output and wire power to a device (eg, an OTG device) connected through the wired interface 1421 or a wired power receiving device. It is possible to control the power input from the charging device. For example, the first switch 1432 operates in an on state so that power output to the OTG device or the wired power receiving device and power from the wired charging device are input, or power to the OTG device or the wired power receiving device. It may operate in an off state so that power from an output and a wired charging device is not input.

According to an embodiment, the second switch 1434 may include at least one or more switches, and a wireless power supply device through the wireless interface 1425 , such as the conductive pattern 1425 - 1 and the TRX IC 1425 - 2 . and power input and output from the wireless power receiver. For example, the second switch 1434 operates in an on state to enable power input and output from the wireless power supply device or the wireless power receiver, or power input and output from the wireless power supply device or the wireless power receiver. It can be operated in an off state so that this is not possible.

According to an embodiment, the control logic 1436 controls to convert power input from at least one of the first switch 1432 and the second switch 1434 into a charging voltage and a charging current suitable for charging the battery 1410 . and control to convert power from the battery 1410 into a charging voltage and charging current suitable for charging another battery of an external device connected to each of the first switch 1432 and the second switch 1434, and the battery ( 1410) can be controlled to be converted into voltages and currents suitable for use in external devices.

According to various embodiments, the control logic 1436 may control the charging circuit 1430 to selectively transmit power from the battery 1410 wirelessly or wiredly. In addition, the control logic 1436 may be configured such that power is transmitted to the first external device 1402 and/or the second external device 1403 through the charging circuit 1430 , or the first external device 1402 and/or the second external device 1402 . Power may be received from the device 1403 .

According to various embodiments, when the wired charging device is connected, the control logic 1436 may control the battery 1410 to be charged using power received from the wired charging device. Also, the control logic 1436 may control to perform an OTG function when an OTG device is connected. Also, when the wireless power supply device is connected, the control logic 1436 may control the battery 1410 to be charged by receiving power from the wireless power supply device. Also, when the wireless power supply device and the OTG device are connected, the control logic 1436 may receive power from the wireless power supply device to charge the battery 1410 and control the OTG function to be performed at the same time. When the wireless power receiver is connected, the control logic 1436 may control power to be supplied to the wireless power receiver using the power of the battery 1410 . In addition, when the wired charging device and the wireless power receiving device are connected, the control logic 1436 may receive power from the wired charging device to charge the battery 1410 and control to supply power to the wireless power receiving device at the same time. When the OTG device and the wireless power receiver are connected, the control logic 1436 may perform an OTG function and control to supply power to the wireless power receiver using the battery 1410 power.

According to an embodiment, the switch group 1438 provides a constant current to the system 1420 , for example, the system 1420 that supplies power to each module of an electronic device, or connected external devices 1402 and 1403 . Boosts the battery 1410 voltage to provide a constant current to the battery 1410 voltage boost (↑ or step-down (buck (↓), or boost (↑ or step-down) the charging voltage provided to provide a constant charging current to the battery 1410) (It may be buck(↓). According to one embodiment, the switch group 1438 may include a buck/boost converter.

According to an embodiment, the charging switch 1439 may detect the amount of charging current, and may block charging of the battery 1410 when overcharging or overheating.

According to an embodiment, the electronic device 1401 may include a display (eg, the display device 160 of FIG. 1 ). The display 160 may display a user interface configured to control at least a portion of the charging circuit 1430 . The display 160 may receive a user input for transmitting power from the battery 1410 to the external devices 1402 and 1403 wirelessly or wiredly. The display 160 may display at least one or more external devices 1402 and 1403 connected to the electronic device 1401 , and may display the remaining battery power of the connected external devices 1402 and 1403 , or may display the connected external device ( Whether power is being supplied to 1402 or 1403 or power is being received from the connected external device 1402 or 1403 may be displayed. When a plurality of external devices 1402 and 1403 are connected to the display 160 and power is provided to the plurality of external devices 1402 and 1403, respectively, the display 160 shows the power provided to each of the plurality of external devices 1402 and 1403. A screen for controlling distribution may be displayed, and a screen for selecting a priority of power provision among the plurality of external devices 1402 and 1403 may be displayed. Also, the display 160 may display a screen indicating information on the display 160 of the connected external devices 1402 and 1403 . At least a portion of the content displayed on the display 160 may be changed according to a signal received from the connected external devices 1402 and 1403 .

301: electronic device
302, 501: external device

Claims (20)

In an electronic device,
coil;
sensor;
communication circuit;
a wireless power transmission circuit electrically connected to the coil; and
A processor comprising:
using the sensor to determine whether the electronic device is placed facing a specified direction;
When the electronic device is placed to face the designated direction, the proximity of the external device is sensed using the communication circuit,
When the proximity of the external device is detected, a designated ping is transmitted using the wireless power transmission circuit,
receiving a feedback signal for the designated ping from the external device, and
and transmitting power to the external device through the coil in response to the feedback signal.
The method of claim 1,
The designated direction includes the direction of gravity,
and the processor detects proximity of the external device using the communication circuit when the display of the electronic device is placed to face the gravitational direction.
The method of claim 1,
The sensor includes at least one of a proximity sensor, an illuminance sensor, a touch sensor, an acceleration sensor, and a gyroscope.
The method of claim 1,
wherein the communication circuit is a short-range communication circuit.
5. The method of claim 4,
The short-distance communication circuit is
An electronic device comprising at least one of a near field communication (NFC) circuit, a Bluetooth circuit, and/or a Wi-Fi aware circuit.
5. The method of claim 4,
The short-range communication circuit includes a near field communication (NFC) circuit,
The processor is
When the electronic device is placed to face the specified direction, activating the NFC circuit to generate an NFC short pulse, and
When an impedance change greater than a threshold value is detected in an NFC coil electrically connected to the NFC circuit when the NFC short pulse occurs, determining that the external device is close to the electronic device.
7. The method of claim 6,
The processor is
When it is determined that the external device is close, the NFC circuit controls to enter the NFC RF Discovery mode including a Poll phase and a Listen phase, and
While the NFC circuit is in the Listen phase, the electronic device controls the wireless power transfer circuit to transmit the designated ping.
5. The method of claim 4,
The short-range communication circuit includes a Bluetooth (bluetooth) circuit,
The processor is
and determining whether the external device is in proximity based on a received signal strength indication (RSSI) received from the external device through the Bluetooth circuit.
5. The method of claim 4,
The short-range communication circuit includes a NAN (neighbor awareness networking)-based Wi-Fi aware circuit,
and the processor determines whether the external device is close to the external device based on a time of flight (ToF) required for transmitting and receiving a specified signal to and from the external device through the Wi-Fi aware circuit.
The method of claim 1,
The feedback signal includes a signal strength packet (SSP) of the external device, the electronic device.
The method of claim 1,
The processor is
receive the specified input from a user;
and transmit the designated ping using the wireless power transfer circuitry in response to the designated input.
12. The method of claim 11,
The processor is
and transmitting the designated ping based on the designated input even if the proximity of the external device is not detected.
A method for wirelessly transmitting power by an electronic device, the method comprising:
determining whether the electronic device is placed facing a specified direction using a sensor;
detecting proximity of an external device using a communication circuit when the electronic device is placed to face the specified direction;
transmitting a designated ping using a wireless power transmission circuit when the proximity of the external device is detected;
receiving a feedback signal for the designated ping from the external device; and
and transmitting power to the external device via a coil in response to the feedback signal.
14. The method of claim 13,
If the display of the electronic device is placed to face the direction of gravity, determining that the electronic device is placed to face the specified direction.
14. The method of claim 13,
The communication circuit includes a near field communication (NFC) circuit,
The operation of detecting the proximity of an external device using the communication circuit comprises:
generating an NFC short pulse by activating the NFC circuit when the electronic device is placed to face the specified direction; and
and determining that the external device is proximate when an impedance change greater than or equal to a threshold is sensed in an NFC coil electrically connected to the NFC circuit when the NFC short pulse occurs.
16. The method of claim 15,
controlling the NFC circuit to enter an NFC RF Discovery mode including a Poll phase and a Listen phase when it is determined that the external device is in proximity; and
The method further comprising the operation of controlling the wireless power transfer circuit to transmit the designated ping while the NFC circuit is in the Listen phase.
14. The method of claim 13,
The communication circuit includes a Bluetooth (bluetooth) circuit,
The operation of detecting the proximity of an external device using the communication circuit comprises:
and determining whether the external device is in proximity based on a received signal strength indication (RSSI) received from the external device through the Bluetooth circuit.
14. The method of claim 13,
The communication circuit includes a NAN (neighbor awareness networking) based Wi-Fi aware circuit,
The operation of detecting the proximity of an external device using the communication circuit comprises:
and determining whether the external device is in proximity based on a time of flight (ToF) required for transmitting and receiving a specified signal to and from the external device through the Wi-Fi aware circuit.
14. The method of claim 13,
The feedback signal includes a signal strength packet (SSP) of the external device.
A recording medium in which a program for controlling an operation of an electronic device is recorded, the recording medium comprising:
determining whether the electronic device is placed facing a specified direction using a sensor;
detecting proximity of an external device using a communication circuit when the electronic device is placed to face the specified direction;
transmitting a designated ping using a wireless power transmission circuit when the proximity of the external device is detected;
receiving a feedback signal for the designated ping from the external device; and
A program for transmitting power to the external device through a coil in response to the feedback signal is recorded therein.

Images