KR20220112611A - Electronic device for adjusting power level in wireless charging and method for operating thereof - Google Patents

Abstract

According to various embodiments, an electronic device comprises a battery, at least one sensor, a wireless charging circuit for providing power to an external electronic device, and at least one processor. The at least one processor, based on sensing values obtained from the at least one sensor, can identify a first position of the electronic device, detect an external electronic device corresponding to a charging target, determine whether the first position is maintained in response to the detection of the external electronic device, and control the wireless charging circuit to provide a second power higher than a predetermined first power according to a designated wireless charging specification while the first position is maintained. Additional various embodiments may be provided. According to the present disclosure, it is possible to reduce a degree of exposure of the human body to radio waves while increasing charging efficiency by adjusting a power level for charging during wireless charging.

Description

Electronic device for controlling power during wireless charging and operating method thereof

Various embodiments disclosed in this document relate to an electronic device for controlling power during wireless charging and an operating method thereof.

As wireless charging technology develops, a method of charging by supplying power to various electronic devices from a single charging device is being studied. For example, in addition to a method in which the battery can be automatically charged by simply placing it on a charging pad without connecting the electronic device through a separate charging connector, an accessory device can be charged using an electronic device such as a smartphone. Methods are also being studied.

Wireless charging methods include magnetic induction, magnetic resonance, and electromagnetic wave methods. The magnetic induction or magnetic resonance method may be advantageous for charging an electronic device located relatively close to the wireless power transmitter. The electromagnetic wave method may be more advantageous for long-distance power transmission up to several meters in a magnetic induction or magnetic resonance method. The electromagnetic wave method is mainly used for long-distance power transmission, and it can transmit power most efficiently by identifying the exact location of a power receiver at a long distance.

Electronic devices need to meet certain regulatory requirements for radio waves. For example, in order to reduce human exposure to electromagnetic waves generated in a wireless charging situation, it is necessary to limit the degree of exposure of the human body to radio waves when the human body approaches an electronic device that transmits power for wireless charging.

For example, as a method of evaluating the effect of electromagnetic waves on the human body, there are a maximum permissible exposure (MPE) method and a specific absorption rate (SAR) method. Measurements are made, and SAR is mainly measured in portable devices used close to the human body. Permissible figures for the maximum permissible exposure (MPE) of these electromagnetic waves are set by the federal communications commission (FCC). In addition, many countries regulate to satisfy the standards for SAR, which is an indicator of the absorption rate of electromagnetic waves for the human body.

Manufacturers of electronic devices are set to transmit charging power differently depending on the type of charging device in order to satisfy specific regulatory conditions during wireless charging. In order to reduce human exposure to electromagnetic waves generated during wireless charging, in particular, in the case of electronic devices used close to the human body, output is limited. In this way, when charging an electronic device while it is placed on a charging pad during wireless charging, for example, an accessory device is charged using an electronic device such as a smartphone compared to a wireless charger that performs charging while fixed to a table. Stricter regulations are being applied to cases where However, in order to increase the charging efficiency, it is necessary to increase the output. Due to strict regulations on electronic devices that are used close to the human body, it may be difficult to simultaneously satisfy the charging efficiency and output limit conditions.

Various embodiments disclosed in this document may provide an electronic device and an operating method thereof for controlling power in order to limit the degree of exposure of the human body to radio waves while increasing charging efficiency during wireless charging.

According to various embodiments, the electronic device includes a battery, at least one sensor, a wireless charging circuit for providing power to an external electronic device, and at least one processor, wherein the at least one processor includes the at least one sensor Identifies the first posture of the electronic device based on the sensed value identified from and control the wireless charging circuit to provide a second power higher than the first power according to a predetermined wireless charging standard to the external electronic device while the first posture is maintained.

According to various embodiments of the present disclosure, a method for controlling power during wireless charging in an electronic device includes an operation of identifying a first posture of the electronic device based on a sensed value identified by at least one sensor, corresponding to a charging target, An operation of detecting an external electronic device, an operation of identifying whether the first posture is maintained in response to the detection of the external electronic device, and an operation of determining whether the first posture is maintained with the external electronic device according to a wireless charging standard predetermined by the external electronic device while the first posture is maintained The operation may include providing a second power higher than the first power.

According to various embodiments, by controlling power for charging during wireless charging, it is possible to increase charging efficiency and reduce the degree of exposure of the human body to radio waves.

According to various embodiments, during wireless charging, while there is no change in the attitude of the electronic device itself, charging is performed by increasing the transmission power to increase charging efficiency, and when the attitude of the electronic device is changed by the user, by lowering the transmission power. It is possible to reduce the effect on the human body due to electromagnetic waves due to the transmitted power.

Effects obtainable in the present disclosure are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those of ordinary skill in the art to which the present disclosure belongs from the description below. will be.

1 is a block diagram of an electronic device in a network environment according to various embodiments of the present disclosure;
2A is a diagram for describing wireless charging between a charging pad and an electronic device, according to various embodiments of the present disclosure;
2B is a diagram for describing wireless charging between an electronic device and an external electronic device, according to various embodiments of the present disclosure;
3A is a diagram for describing RF exposure during wireless charging between an electronic device and an external electronic device, according to various embodiments of the present disclosure;
3B is a diagram for explaining RF exposure according to power control during wireless charging between an electronic device and an external electronic device, according to various embodiments of the present disclosure;
4 is an internal block diagram of an electronic device for wireless charging with an external electronic device according to various embodiments of the present disclosure;
5 is a diagram illustrating a wireless charging circuit of an electronic device and an external electronic device according to various embodiments of the present disclosure;
6 is a flowchart illustrating an operation of an electronic device for controlling power during wireless charging according to various embodiments of the present disclosure;
7 is a flowchart of an operation of an electronic device for changing a charging method according to a posture of the electronic device according to various embodiments of the present disclosure;
8 is an exemplary diagram for explaining a charging method according to a first posture of an electronic device according to various embodiments of the present disclosure;
9 is an exemplary diagram for explaining a charging method according to a second posture of an electronic device according to various embodiments of the present disclosure;
10 is an exemplary diagram for explaining a charging method according to a third posture of an electronic device according to various embodiments of the present disclosure;
In connection with the description of the drawings, the same or similar reference numerals may be used for the same or similar components.

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 at least one of the electronic device 104 and 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 module 150 , a sound output module 155 , a display module 160 , an audio module 170 , and a sensor module ( 176), interface 177, connection terminal 178, haptic module 179, camera module 180, power management module 188, battery 189, communication module 190, subscriber identification module 196 , or an antenna module 197 may be included. In some embodiments, at least one of these components (eg, the connection terminal 178 ) may be omitted or one or more other components may be added to the electronic device 101 . In some embodiments, some of these components (eg, sensor module 176 , camera module 180 , or antenna module 197 ) are integrated into one component (eg, display module 160 ). can be

The processor 120, for example, executes software (eg, a 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 stored in the volatile memory 132 , and may process commands or data stored in the volatile memory 132 , and store the result data in the non-volatile memory 134 . According to an embodiment, the processor 120 is the main processor 121 (eg, a central processing unit or an application processor) or a secondary processor 123 (eg, a graphic processing unit, a neural network processing unit (eg, a graphic processing unit, a neural network processing unit) a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor). For example, when the electronic device 101 includes the main processor 121 and the sub-processor 123 , the sub-processor 123 uses less power than the main processor 121 or is set to be specialized for a specified function. can The auxiliary processor 123 may be implemented separately from or as a part of the main processor 121 .

The secondary processor 123 may, for example, act 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 module 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. According to an embodiment, the auxiliary processor 123 (eg, a neural network processing device) may include a hardware structure specialized for processing an artificial intelligence model. Artificial intelligence models can be created through machine learning. Such learning may be performed, for example, in the electronic device 101 itself on which the artificial intelligence model is performed, or may be performed through a separate server (eg, the server 108). The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but in the above example not limited The artificial intelligence model may include a plurality of artificial neural network layers. Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the above, but is not limited to the above example. The artificial intelligence model may include, in addition to, or alternatively, a software structure in addition to the hardware structure.

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 module 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 module 150 may include, for example, a microphone, a mouse, a keyboard, a key (eg, a button), or a digital pen (eg, a stylus pen).

The sound output module 155 may output a sound signal to the outside of the electronic device 101 . The sound output module 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as multimedia playback or recording playback. 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 module 160 may visually provide information to the outside (eg, a user) of the electronic device 101 . The display module 160 may include, for example, a control circuit for controlling a display, a hologram device, or a projector and a corresponding device. According to an embodiment, the display module 160 may include a touch sensor configured to sense a touch or a pressure sensor configured to measure the intensity of a force generated by the touch.

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 module 150 , or an external electronic device (eg, a sound output module 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, a 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 pressure 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, 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 performance 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 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). A corresponding communication module among these communication modules is a first network 198 (eg, a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 199 (eg, legacy It may communicate with the external electronic device 104 through a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (eg, a telecommunication network such as a LAN or a 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 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 or authenticated.

The wireless communication module 192 may support a 5G network after a 4G network and a next-generation communication technology, for example, a new radio access technology (NR). NR access technology includes high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and access to multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency) -latency communications)). The wireless communication module 192 may support a high frequency band (eg, mmWave band) in order to achieve a high data rate, for example. The wireless communication module 192 uses various techniques for securing performance in a high-frequency band, for example, beamforming, massive multiple-input and multiple-output (MIMO), all-dimensional multiplexing. It may support technologies such as full dimensional MIMO (FD-MIMO), an array antenna, analog beam-forming, or a large scale antenna. The wireless communication module 192 may support various requirements defined in the electronic device 101 , an external electronic device (eg, the electronic device 104 ), or a network system (eg, the second network 199 ). According to an embodiment, the wireless communication module 192 may include a peak data rate (eg, 20 Gbps or more) for realizing eMBB, loss coverage (eg, 164 dB or less) for realizing mMTC, or U-plane latency for realizing URLLC ( Example: downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less) may be supported.

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 197 may include an 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 (eg, an array antenna). 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, a radio frequency integrated circuit (RFIC)) other than the radiator may be additionally formed as a part of the antenna module 197 .

According to various embodiments, the antenna module 197 may form a mmWave antenna module. According to one embodiment, the mmWave antenna module comprises a printed circuit board, an RFIC disposed on or adjacent to a first side (eg, bottom side) of the printed circuit board and capable of supporting a designated high frequency band (eg, mmWave band); and a plurality of antennas (eg, an array antenna) disposed on or adjacent to a second side (eg, top or side) of the printed circuit board and capable of transmitting or receiving signals of the designated high frequency band. can do.

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 ( eg 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 external electronic devices 102 or 104 may be the same as or different from 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 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. 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, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device 101 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing. In another embodiment, the external electronic device 104 may include an Internet of things (IoT) device. The server 108 may be an intelligent server using machine learning and/or neural networks. According to an embodiment, the external electronic device 104 or the server 108 may be included in the second network 199 . The electronic device 101 may be applied to an intelligent service (eg, smart home, smart city, smart car, or health care) based on 5G communication technology and IoT-related technology.

2A is a diagram for describing wireless charging between a charging pad and an electronic device, according to various embodiments of the present disclosure;

In FIG. 2A , the wireless power transmitter 200 is a charging pad, and the charging target is an electronic device 201a such as a smartphone. As shown in FIG. 2A , the wireless power transmission device 200 may include a housing having a shape capable of supporting the electronic device 201a. At least one of the components of the electronic device 101 described with reference to FIG. 1 may be disposed in a housing of the wireless power transmitter 200 .

As shown in FIG. 2A , an electronic device 201a to be charged may be placed on the wireless power transmission device 200 . When the electronic device 201a is placed, the wireless power transmitter 200 may detect that the electronic device 201 is located on the wireless power transmitter 200, and the electronic device ( 201a) can be connected. Then, the wireless power transmitter 200 may perform wireless charging by starting an operation of transmitting power to the electronic device 201a.

2B is a diagram for describing wireless charging between an electronic device and an external electronic device, according to various embodiments of the present disclosure; The electronic device 201b (eg, the electronic device 101 of FIG. 1 ) may activate a 'wireless power share' function based on a user input. The wireless battery sharing function shares battery power of the electronic device 201b with the external electronic devices 201c, 202a, and 202b, and may wirelessly supply power to the external electronic devices 201c, 202a, and 202b. In the example shown in FIG. 2B , the external electronic devices 201c, 202a, and 202b (eg, smart phones, smart watches, wireless earphones) to be charged are illustrated as wireless power receivers, but the wireless power receivers are relatively low. It may be various electronic devices capable of wireless charging by receiving power.

As shown in FIGS. 2A and 2B , each of the wireless power transmitter 200 and the electronic device 201b may perform wireless charging by transmitting power corresponding to a charging target. Here, when wireless charging is performed in each of the wireless power transmitter 200 and the electronic device 201b, the allowable value related to the maximum allowable exposure (eg, MPE) of electromagnetic waves and/or the standards for the human body's electromagnetic wave absorption rate are satisfied. It can perform wireless charging with power.

For example, there are country-specific wireless technology regulations as one of the protection purposes for the safety of citizens and to prevent disturbance of other systems. Electronic devices that generate electromagnetic waves are regulated to operate with outputs within predetermined regulations.

However, the regulation applied to the wireless power transmitter 200 in the form of a charging pad and the regulation applied to the electronic device 201b in the form of a smartphone may be different from each other. For example, during wireless charging, an allowable value in the wireless power transmission device 200 in the form of a charging pad may be different from an allowable value in the electronic device 201b in the form of a smartphone.

As shown in FIG. 2A , the wireless power transmission device 200 in the form of a charging pad is used in a state spaced apart from the user by a certain distance (eg, more than 20 cm), and is located at a certain distance from the user even during wireless charging. Since the power is transmitted from the device, the effect of electromagnetic waves on the human body may be relatively small compared to the electronic device 201b in the form of a smartphone. The wireless power transmission device 200 in the form of a charging pad may perform wireless charging with power corresponding to mobile regulations set by a communication regulatory agency (eg, FCC) between countries.

On the other hand, since most users use the smartphone-type electronic device 201b within the predetermined distance (eg, 20 cm) in the state of holding it in their hand, when wireless charging is performed, inter-country communication regulatory agencies (eg, FCC) ) can be set to operate based on the portable (portable) rule set by the In this case, the low frequency band RF exposure requirements according to the mobile regulations and portable regulations set by the FCC may be different from each other.

For example, when charging wirelessly, the external electronic devices 201c, 202a, and 202b using an electronic device 201b such as a smart phone compared to charging the electronic device 201a while placed on the charging pad 200 during wireless charging. More stringent regulations are being applied to the charging case. The electronic device 201b operates as a wireless power transmission device as in the charging pad 200 , but may have a limited output during wireless charging compared to the charging pad 200 in order to satisfy the predetermined national regulations.

However, by limiting the output of the electronic device 201b, charging efficiency is also lowered, so that the charging time of the external electronic devices 201c, 202a, and 202b may be prolonged. In addition, in the case of the electronic device 201b such as a smart phone, charging efficiency may vary depending on the type of charging target. This will be described with reference to FIGS. 3A and 3B.

3A is a diagram for describing RF exposure during wireless charging between an electronic device and an external electronic device, according to various embodiments of the present disclosure;

As shown in (a) of FIG. 3A , when wireless charging is performed while placing an external electronic device 301b, which is a bar-type smartphone, on the electronic device 301a and FIG. 3A (b) As illustrated in FIG. 1 , when wireless charging is performed while the external electronic device 302, which is a smart watch, is placed on the electronic device 301a, RF exposure results may be different.

If the wireless power transmission device is an electronic device 301a such as a smartphone, it is classified as portable as determined by a communication regulatory agency between countries (eg, FCC). can be applied. In order to satisfy this criterion, the wireless output from the electronic device 301a is limited when the wireless battery sharing function is activated.

If the transmission power is high during wireless charging, the charging target can be charged quickly, but the higher the power, the higher the influence of electromagnetic waves on the human body. In this case, the electromagnetic wave may be proportional to the square of the electric field strength. Accordingly, the influence of electromagnetic waves on the human body may be reduced by limiting the output of the electronic device 301a, but in this case, the charging efficiency may be low and the charging time of the external electronic devices 301b and 302 may be prolonged. In addition, even if the output of the electronic device 301a is limited, a situation may occur that does not satisfy a regulation set by a communication regulatory agency between countries depending on the size of the external electronic device 301b or 302 .

For example, when wireless charging is performed while the external electronic device 302, which is a smart watch, is placed on the electronic device 301a as shown in (b) of FIG. 3A , the electronic device 301a is charged. Since the external electronic device 302 does not completely cover the coil region, more electromagnetic waves may be generated around the external electronic device 302 . The spectrum in FIG. 3A shows that the RF exposure becomes stronger as it goes to the right, and the RF exposure decreases as it goes to the left.

As shown in (b) of FIG. 3A , the smaller the size of the external electronic device 302 is, the stronger the RF exposure appears. Accordingly, the electronic device 301a has to satisfy the above regulation no matter what kind of charging target is charged, so that charging can be performed with limited power compared to the power output from the electronic device 301a.

For example, the influence on the human body according to the size of the external electronic devices 301b and 302 may be determined through an RF exposure experiment, which may be shown in Tables 1 and 2 .

Test Configuration test mode test distance Test Position H-Field Limit
(A/m) H-Field
measurement data
(A/m) Phone to Phone Operation Real Product
(Power <10% charging) 15 mm Top 90 0.6296 Phone to Watch Operation Real Product
(Power <10% charging) 15 mm Top 90 9.7830

Test Configuration test mode test distance Test Position E-Field Limit
(V/m E-Field
measurement data
(V/m) Phone to Phone Operation Real Product
(Power <10% charging) 15 mm Top 83 8.0790 Phone to Watch Operation Real Product
(Power <10% charging) 15 mm Top 83 31.256

As shown in Tables 1 and 2, the size of the electronic device 301a of the smartphone type is larger than that of the electronic device 301a of the smartphone type when wireless charging is performed between the electronic device 301a of the smartphone type and the external electronic device 301b during wireless charging. It can be confirmed through experiments that RF exposure results (eg, H-Field measurement data, E-Field measurement data) may be higher in the case of the small external electronic device 302 .

Therefore, even if the same output power is used during wireless charging, approval of the electronic device may be determined according to the type of regulation applied to the electronic device in a corresponding country. Therefore, if the smartphone-type electronic device satisfies the conditions according to the portable regulations set by the inter-country communication regulatory agency, for example, the wireless charging condition in a state separated from the user by a certain distance, charging can be performed with higher charging power. Thus, not only can the charging efficiency be increased, but also user stability can be secured.

For example, when wireless charging is performed with power according to portable regulations in the electronic device 301a at a location spaced a certain distance from the user and when wireless charging is performed with power according to mobile regulations, RF exposure as shown in FIG. 3b (exposure) results can be obtained. Here, FIG. 3B is a diagram for explaining RF exposure according to power control during wireless charging between an electronic device and an external electronic device, according to various embodiments of the present disclosure.

As shown in FIGS. 3b (a) and 3b (b), when wireless charging is performed while the external electronic device 302, which is a smart watch, is placed on the electronic device 301a, regulatory conditions If set differently, RF exposure results may be different.

In (a) of FIG. 3B exemplifies a case where wireless charging is performed with power according to a portable regulation, and in FIG. 3b (b) exemplifies a case where wireless charging is performed with power according to a mobile regulation.

As shown in (a) of FIG. 3B , when wireless charging is performed with power according to the portable regulation, the RF exposure result may appear close to the threshold standard indicating the electromagnetic wave absorption rate of the human body according to the portable regulation. On the other hand, if wireless charging is performed with power according to the mobile regulations as shown in (b) of FIG. 3B, the RF exposure result may appear much lower than the threshold standard indicating the human body's electromagnetic wave absorption rate according to the mobile regulations.

According to various embodiments, when wireless charging is performed in a fixed state without movement in a smartphone-type electronic device, charging is performed with an output higher than an output according to a predetermined wireless charging standard, and the user touches or positions the electronic device In the case of adjusting , the electronic device may be configured to perform charging according to a predetermined wireless charging standard so as not to be overexposed to electromagnetic waves. In this way, it is possible to maximize charging efficiency while providing a safe use environment for the electronic device to the user during wireless charging.

4 is an internal block diagram of an electronic device for wireless charging with an external electronic device according to various embodiments of the present disclosure;

Referring to FIG. 4 , the electronic device 401 includes at least one processor 420 , a wireless charging circuit 430a , a communication circuit 490 , a display 460 , a sensor 476 , and a battery 489 . The external electronic device 402 may include a wireless charging circuit 430b.

According to various embodiments, the at least one processor 420 may be the processor 120 described above with reference to FIG. 1 .

According to various embodiments, the at least one processor 420 may control the amount of power transmitted by the wireless charging circuit 430a. For example, the at least one processor 420 controls the amount of power output from the power source (eg, the battery 489 ) of the electronic device 401 or a power amplifier included in the wireless charging circuit 430a. By controlling an amplification gain of a power amplifier, or a modulation parameter (eg, a width value during PWM modulation) of a modulation circuit in the wireless charging circuit 430a, the amount of power transmitted by the wireless charging circuit 430a is controlled and there may be no limitation on the method of controlling the size of power. The at least one processor 420 controls the duty cycle or frequency of power output from the power source (eg, the battery 489 ) of the electronic device 401 , thereby controlling the power source (eg, the battery 489 ) of the electronic device 401 . (489)), the amount of power output can be adjusted. The at least one processor 402 may control the amount of power applied to the wireless charging circuit 430a by controlling the magnitude of the bias voltage of the power amplifier. According to an embodiment, the power source includes, in addition to the battery 489 in the electronic device 401 , an external battery outside the electronic device 401 , wired charging power flowing in from the outside, or wireless charging flowing in from the outside. It may include at least one of power.

The wireless charging circuit 430a may wirelessly transmit power to the external electronic device 402 according to various charging methods. For example, the wireless power may be transmitted according to various charging methods such as a magnetic induction method, a resonance method, and an electromagnetic wave method.

The wireless charging circuit 430a may communicate with the external electronic device 402 through the communication circuit 490 . The communication circuit 490 and the display 460 may be the communication module 190 and the display module 190 described above with reference to FIG. 1 .

The sensor 476 may include at least one of an acceleration sensor, a geomagnetic sensor, and a gyro sensor, and the processor 420 uses the sensor 476 to measure the posture, angle, or movement of the electronic device 401 . can be identified. Also, the sensor 476 may include a proximity sensor that detects a user's proximity to the electronic device 401 . For example, proximity may be detected by detecting a change in capacitance (or capacitance) that is changed by an object (eg, a user) that approaches the electronic device 401 .

According to various embodiments, the battery 489 may supply power to at least one component of the electronic device 401 , and may be the battery 189 described above with reference to FIG. 1 .

5 is a diagram illustrating a wireless charging circuit of an electronic device and an external electronic device according to various embodiments of the present disclosure; According to an embodiment, each of the wireless charging circuit 430a and the wireless charging circuit 430b of FIG. 5 may correspond to the wireless charging circuit 430a and the wireless charging circuit 430b of FIG. 4 , respectively.

According to various embodiments, the wireless charging circuit 430a of the electronic device 401 may include a power adapter 431a , a power generation circuit 432a , a coil 433a , and a matching circuit 434a . The power adapter 431a may receive power from a power source and provide it to the power generation circuit 432a. The power generation circuit 432a may convert the received power into, for example, an AC waveform or amplify it and transmit it to the coil 433a. When power is applied to the coil 433a, an induced magnetic field that changes in size with time may be formed from the coil 433a, and thus power may be wirelessly transmitted. Although not shown, capacitors constituting a resonance circuit together with the coil 433a may be further included in the wireless charging circuit 430a of the electronic device 401 . The resonant frequency may be defined according to a standard, and may have a frequency of 100 to 205 kHz according to the Qi standard by the induction method, and may have 6.78 MHz according to the AFA standard by the resonance method. The matching circuit 434a changes at least one of a capacitance or a reactance of a circuit connected to the coil 433a under the control of the processor 420, thereby changing the wireless charging circuit 430a of the electronic device 401 and the external electronic device The wireless charging circuit 430b of 402 may be impedance-matched to each other.

According to various embodiments, the wireless charging circuit 430b of the external electronic device 402 may include a coil 431b, a rectifying circuit 432b, a converting circuit 433b, and a matching circuit 434b. In the coil 431b of the wireless charging circuit 430b of the external electronic device 402, an induced electromotive force may be generated by a magnetic field whose size changes according to time formed around it, and accordingly, The charging circuit 430b may receive power wirelessly. The rectifying circuit 432b may rectify the received AC waveform power.

The converting circuit 433b may adjust the voltage of the rectified power and transmit it to the PMIC of the external electronic device 402 . The wireless charging circuit 430b of the external electronic device 402 may further include a regulator, or the converting circuit 4333b may be replaced with a regulator. The matching circuit 434b changes at least one of a capacitance or a reactance of a circuit connected to the coil 431b under the control of the processor of the external electronic device 402, whereby the wireless charging circuit 430a of the electronic device 401 is and the wireless charging circuit 430b of the external electronic device 402 may be impedance matched to each other.

According to various embodiments, the electronic device includes a battery, at least one sensor, a wireless charging circuit for providing power to an external electronic device, and at least one processor, wherein the at least one processor includes the at least one sensor Identifies the first posture of the electronic device based on the sensed value identified from and control the wireless charging circuit to provide a second power higher than the first power according to a predetermined wireless charging standard to the external electronic device while the first posture is maintained.

According to various embodiments, the at least one processor may control the wireless charging circuit to provide the first power according to the predetermined wireless charging standard to the external electronic device when the first posture is not maintained. .

According to various embodiments, the first power may be allowable power related to the maximum allowable exposure of electromagnetic waves, and the first posture may be a posture in which a surface of the electronic device including a display is placed toward the floor. .

According to various embodiments, the at least one processor may be configured to identify whether there is a change in the first posture while providing the second power to the external electronic device.

According to various embodiments, when there is a change in the first posture, the at least one processor may control the wireless charging circuit to provide the first power, which is lower than the second power, to the external electronic device. .

According to various embodiments, the at least one processor may control the wireless charging circuit to stop providing the second power to the external electronic device when the change in the first posture is equal to or greater than a threshold range.

According to various embodiments, the first power according to the predetermined wireless charging standard is power corresponding to a portable regulation set by a communication regulatory agency between countries, and the second power is according to a mobile regulation set by the communication regulation agency between countries. It may be a corresponding power.

According to various embodiments of the present disclosure, the second power may be power that satisfies a threshold criterion indicating a human body electromagnetic wave absorption rate according to the mobile regulation set higher than a threshold value indicating a human body electromagnetic wave absorption rate according to the portable regulation.

According to various embodiments, the at least one processor may be configured to identify a user input for activating the function of sharing power of the battery, and to identify the first posture of the electronic device in response to the user input. can

According to various embodiments, the at least one sensor includes at least one of an acceleration sensor, a geomagnetic sensor, and a gyro sensor, and the at least one processor is configured to: It may be set to identify whether the first posture is maintained using a sensor.

6 is a flowchart 600 of an operation of an electronic device for controlling power during wireless charging according to various embodiments of the present disclosure.

Each step/operation of the operating method of FIG. 6 includes an electronic device (eg, the electronic device 101 of FIG. 1 , the electronic device 401 of FIG. 4 , and at least one processor of the electronic device (eg, the processor of FIG. 1 ) 120) and the processor 420 of Fig. 4. In one embodiment, at least one of operations 605 to 625 is omitted, the order of some operations is changed, or another operation is performed. In addition, in the following embodiment, each operation may be performed sequentially, but is not necessarily performed sequentially. For example, the order of each operation may be changed, and at least two operations may be performed in parallel. may be performed.

In operation 605 , the electronic device 401 may identify the first posture of the electronic device 401 based on a sensing value identified by at least one sensor.

According to an embodiment, a wireless charging circuit 430a (eg, a wireless charging coil) may be included in the housing of the electronic device 401 for wireless power transmission. At this time, any interface surface in the form of a flat surface as a surface for wireless power transmission may be possible, and a charging target may be placed on the upper portion of the interface surface, and the wireless charging coil may be mounted on the lower portion of the interface surface. .

According to an embodiment, when the electronic device 401 is a foldable device, in the folded or unfolded state, the external electronic device 402 to be charged is on the side including the wireless charging circuit 430a (eg, wireless charging coil). can be placed Therefore, the first posture may include a posture in which the surface including the wireless charging circuit 430a is placed to face upward.

For example, when the side including the wireless charging circuit 430a is the back side, in the wireless power transmission mode, the back side may be set to face upward, that is, the side including the display 460 may be set to face the floor. . In this case, the first posture may include a posture in which the surface including the display (eg, the display module 160 of FIG. 1 and the display 460 of FIG. 4 ) of the electronic device is placed toward the floor.

According to an embodiment, the at least one sensor may include at least one of an acceleration sensor, a geomagnetic sensor, and a gyro sensor. According to an embodiment, in addition to the posture of the electronic device 401 , various sensing values such as movement and angle determine an operation according to a predetermined wireless charging standard (eg, portable regulation) or another wireless charging standard (eg, mobile regulation). can be a criterion for Also, according to an embodiment, whether the user is in proximity using the proximity sensor may also be a criterion for determining an operation according to any one of the standards.

According to various embodiments, the electronic device 401 may identify a power sharing start event of the battery of the electronic device 401 (eg, the battery 189 of FIG. 1 ). According to an embodiment, the electronic device 401 may identify a user input for activating a battery power sharing function, and may identify the first posture of the electronic device 401 in response to the user input. have.

For example, the electronic device 401 may display a user interface (UI) related to the wireless power transmission (Tx) mode, and may activate the wireless power transmission mode based on the user input. When the wireless power transmission mode is activated, the electronic device 401 may wirelessly supply power to the external electronic device 402 using the power of the battery. Here, the user input is a user's touch input through a user interface displayed on the display of the electronic device 401 (eg, the display module 160 of FIG. 1 and the display 460 of FIG. 4 ), or a physical button formed outside the housing. may include manipulation of

According to an embodiment, the electronic device 401 may determine whether to activate the wireless power transmission mode. In operation 610 to activate the wireless power transmission mode, the electronic device 401 may identify whether an external electronic device corresponding to a charging target is detected while the electronic device 401 is placed in the first posture. When the charging target is not detected, the wireless charging operation may be terminated without activating the wireless power transmission mode. For example, wireless charging may be possible only when the external electronic device 402 for wireless charging is disposed in a chargeable area of the electronic device 401 . In response to the detection of the external electronic device, in operation 615 , the electronic device 401 may identify whether the first posture is maintained. According to an embodiment, the electronic device 401 may identify whether the first posture is maintained using the at least one sensor.

According to an embodiment, in the first posture, the external electronic device 402 is positioned on the chargeable area of the electronic device 401 in order to share power of the battery of the electronic device 401 with the external electronic device 402 . It can indicate the state of being placed. For example, in the function of sharing the power of the battery, the electronic device 401 and the external electronic device 402 are in contact with each other or are located within a predetermined distance (eg, short distance) from the electronic device 401 . It may include an operation of sharing power stored in the battery of the 401 with the external electronic device 402 . For example, the rear surface of the electronic device 401 and the rear surface of the external electronic device 402 are in contact with each other, and a coil disposed on the rear surface of the electronic device 401 and the rear surface of the external electronic device 402 are disposed When the distance between the coils becomes the minimum, the electronic device 401 may initiate power transmission to the external electronic device 402 .

According to various embodiments, when the electronic device 401 identifies that the first posture is maintained, the electronic device 401 considers that the electronic device 401 does not move and is in a stationary state for charging and responds to the external electronic device 402 . operable to transmit power. At this time, if the electronic device 401 performs charging under the same conditions as the charging pad (eg, the charging pad 200 of FIG. 2A ) while the battery power sharing function is activated, the output is limited due to the absorption rate of the human body. It is possible to solve the output attenuation according to the size of the overcharging target. For example, when the electronic device 401 is placed in a state spaced apart from the user by a predetermined distance, user safety and stability may be secured, and thus, charging may be performed with a power higher than a specified power during wireless charging. In this case, the electronic device 401 may increase charging efficiency regardless of the type of charging target such as a smart watch or a wireless earphone as well as a smart phone.

Accordingly, when the first posture is maintained in the electronic device 401 , in operation 620 , while the first posture is maintained, the electronic device 401 uses the external electronic device more than the first power according to a predetermined wireless charging standard. The wireless charging circuit (eg, the wireless charging circuit 430a) of the electronic device 401 may be controlled to provide high second power. According to an embodiment, the electronic device 401 may identify whether there is a change in the first posture while providing the second power to the external electronic device 402 . According to an embodiment, when there is a change in the first posture while providing the second power, the electronic device 401 provides the first power lower than the second power to the external electronic device 402 . can do. According to another embodiment, when the change in the first posture is within a threshold range while providing the second power, the electronic device 402 applies the first power lower than the second power to the external electronic device 402 . ), and when the change in the first posture is greater than or equal to a threshold range, the second power supply to the external electronic device 402 may be stopped.

Meanwhile, when the first posture is not maintained in operation 615 , in operation 625 , the electronic device 401 provides a wireless charging circuit (eg, wireless charging) of the electronic device 401 to provide the first power to the external electronic device. circuit 430a). According to an embodiment, the first power according to the predetermined wireless charging standard may be the allowable power (or numerical value) related to the maximum allowable exposure (eg, MPE) of electromagnetic waves. According to an embodiment, the first power according to the predetermined wireless charging standard is power corresponding to a portable regulation set by a communication regulatory agency (eg, FCC) between countries, and the second power is the communication regulation agency between countries. It may be the power corresponding to the mobile regulations set by . According to an embodiment, the second power may be power that satisfies a threshold criterion indicating a human body's electromagnetic wave absorption rate according to the mobile rule set higher than a threshold value indicating a human body's electromagnetic wave absorption rate according to the portable rule.

7 is a flowchart 700 of an operation of an electronic device for changing a charging method according to a posture of the electronic device according to various embodiments of the present disclosure. Hereinafter, it will be described with reference to FIGS. 8 to 10 . 8 is an exemplary diagram illustrating a charging method according to a first posture of an electronic device according to various embodiments of the present disclosure, and FIG. 9 is an exemplary diagram illustrating a charging method according to a second posture of the electronic device according to various embodiments of the present disclosure , and FIG. 10 is an exemplary diagram for explaining a charging method according to a third posture of an electronic device according to various embodiments of the present disclosure.

Referring to FIG. 7 , in operation 705 , the first electronic device (eg, the electronic device 401 of FIG. 4 ) may activate a wireless charge sharing function based on a user input. In response to activation of the wireless charge sharing function, in operation 710 , the first electronic device may set an initial posture using at least one sensor. For example, when the first electronic device for wireless charging starts charging, a posture at the start of charging may be identified and stored. According to an embodiment, a criterion for determining whether the charging state of the first electronic device is a state in which charging is possible with power corresponding to a mobile regulation set by the inter-country communication regulatory agency or a situation in which charging is possible with power corresponding to a portable regulation , the case of using the posture of the first electronic device has been described as an example, but the present invention may not be limited thereto. For example, the posture of the first electronic device may be understood to include both the angle and movement of the first electronic device.

As illustrated in FIG. 8 , a first posture in which the surface including the display of the electronic device is placed toward the floor may be identified based on a sensing value confirmed by the at least one sensor before charging starts. Here, the first electronic device may set and store the first posture as an initial posture. In this case, in the first posture, the front surface of the electronic device is placed toward the floor, but may not necessarily be in contact with the floor surface. For example, as illustrated in FIG. 9 , a state in which a part of the first electronic device is placed not horizontally with the floor may be set as the initial posture.

In order to switch to the wireless charge transmission mode in response to activation of the wireless charge sharing function, the user may place the first electronic device and the second electronic device (eg, the external electronic device 402 of FIG. 4 ) in a designated posture. In operation 715 , a second electronic device (eg, the external electronic device 402 of FIG. 4 ) may be disposed on the first electronic device.

In response to the arrangement of the second electronic device, the first electronic device may identify whether a charging condition is satisfied in operation 720 . If the charging condition is not satisfied, the first electronic device may stop wireless charging in operation 750 . For example, the first electronic device checks the second electronic device and performs wireless charging, such as whether the second electronic device is a rechargeable device that is not a foreign substance, and whether the first electronic device is in a state in which the battery power can be shared. It can be identified whether the condition is satisfied.

On the other hand, when the charging condition is satisfied, the first electronic device may identify whether the initial posture is maintained in operation 725 . When the initial posture is maintained, the first electronic device may charge the second electronic device with a second power higher than the first power in operation 735 .

If the initial posture is not maintained in operation 725 , the first electronic device may identify whether the posture change is within a threshold range in operation 740 . If the posture change is within the threshold range, in operation 745 , the second electronic device may be charged with the first power. For example, the posture of the electronic device may change from the posture of the electronic device in FIG. 8 to the posture shown in FIG. 9 . For example, if the first electronic device placed by the user on the table moves very closely or is a temporary change in posture due to shaking of the table, it is possible that the user has temporarily approached the first electronic device rather than stopping the high-power wireless charging. The electronic device may perform charging with power according to a predetermined wireless charging standard.

On the other hand, in a situation in which a change in posture occurs continuously, for example, in a situation in which the user is lifting or manipulating the first electronic device as shown in FIG. There is a need. Accordingly, when the attitude change is not within the threshold range in operation 740 , the first electronic device may stop wireless charging in operation 750 . For example, when a change in posture occurs continuously or a change in capacitance occurs, the first electronic device may determine that wireless charging is impossible and stop charging.

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 an 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 , B, or C" each may include any one of the items listed together in the corresponding one of the phrases, or all possible combinations thereof. Terms such as "first", "second", or "first" or "second" may simply be used to distinguish an element from other elements in question, and may refer elements to 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.

The term “module” used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as, for example, logic, logic block, component, or circuit. can be used as 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 the one or more instructions stored from the storage medium and execute it. This enables 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 refers to the case 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 between smartphones (eg: smartphones) and online. 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, and some of the plurality of entities may be separately disposed in other components. have. 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.

Claims (20)

In an electronic device,
battery;
at least one sensor;
a wireless charging circuit for providing power to an external electronic device; and
at least one processor;
The at least one processor,
identifying a first posture of the electronic device based on a sensing value identified by the at least one sensor;
detecting an external electronic device corresponding to the charging target;
Identifies whether the first posture is maintained in response to the detection of the external electronic device,
and controlling the wireless charging circuit to provide a second power higher than the first power according to a predetermined wireless charging standard to the external electronic device while the first posture is maintained.
The method of claim 1, wherein the at least one processor comprises:
and controlling the wireless charging circuit to provide first power according to the predetermined wireless charging standard to the external electronic device when the first posture is not maintained.
The electronic device of claim 1 , wherein the first power is an allowable power associated with a maximum allowable exposure of electromagnetic waves, and the first posture comprises a posture in which a surface including a display of the electronic device is placed toward the floor. .
The method of claim 1, wherein the at least one processor comprises:
and identify whether there is a change in the first posture while providing the second power to the external electronic device.
5. The method of claim 4, wherein the at least one processor comprises:
and controlling the wireless charging circuit to provide the first power lower than the second power to the external electronic device when there is a change in the first posture.
The method of claim 5, wherein the at least one processor comprises:
and controlling the wireless charging circuit to stop providing the second power to the external electronic device when the change in the first posture is greater than or equal to a threshold range.
According to claim 1,
The first power according to the predetermined wireless charging standard is power corresponding to a portable regulation set by a communication regulatory agency between countries,
The second power corresponds to a mobile regulation set by the inter-country communication regulatory agency, the electronic device.
The method of claim 7, wherein the second power is
The electronic device is power that satisfies a threshold criterion for indicating a human body's electromagnetic wave absorption rate according to the mobile regulation, which is set higher than a threshold value for indicating a human body's electromagnetic wave absorption rate according to the portable regulation.
The method of claim 1, wherein the at least one processor comprises:
identify a user input for activating the ability to share the power of the battery;
The electronic device is configured to identify the first posture of the electronic device in response to the user input.
10. The method of claim 9, wherein the at least one sensor,
at least one of an acceleration sensor, a geomagnetic sensor, or a gyro sensor,
The at least one processor is configured to identify whether the first posture is maintained using the at least one sensor in response to the detection of the external electronic device.
A method for controlling power during wireless charging in an electronic device, the method comprising:
identifying a first posture of the electronic device based on a sensing value identified by at least one sensor;
detecting an external electronic device corresponding to a charging target;
identifying whether the first posture is maintained in response to the detection of the external electronic device; and
and providing a second power higher than the first power according to a predetermined wireless charging standard to the external electronic device while the first posture is maintained.
12. The method of claim 11,
The method of claim 1 , further comprising: providing first power according to the predetermined wireless charging standard to the external electronic device when the first posture is not maintained.
The wireless charging of claim 11 , wherein the first power is an allowable power associated with a maximum allowable exposure of electromagnetic waves, and the first posture comprises a posture in which a surface including a display of the electronic device is placed toward the floor. A method for regulating city power.
12. The method of claim 11,
The method of claim 1, further comprising: identifying whether there is a change in the first posture while providing the second power to the external electronic device.
15. The method of claim 14,
When there is a change in the first posture, the method further comprising: providing the first power, which is lower than the second power, to the external electronic device.
16. The method of claim 15,
The method of claim 1, further comprising stopping the provision of the second power to the external electronic device when the change in the first posture is greater than or equal to a threshold range.
12. The method of claim 11,
The first power according to the predetermined wireless charging standard is power corresponding to a portable regulation set by a communication regulatory agency between countries,
The second power is a power corresponding to the mobile regulations set by the inter-country communication regulatory agency, a method for controlling power during wireless charging.
The method of claim 17, wherein the second power is
A method for controlling power during wireless charging, which is power that satisfies a threshold criterion indicating a human body electromagnetic wave absorption rate according to the mobile regulation set higher than a threshold value indicating a human body electromagnetic wave absorption rate according to the portable regulation.
The method of claim 11, wherein the identifying the first posture comprises:
identifying a user input for activating a function of sharing power of the battery; and
and identifying a first posture of the electronic device in response to the user input.
The method of claim 11, wherein the operation of identifying whether the first posture is maintained comprises:
and identifying whether the first posture is maintained using the at least one sensor including at least one of an acceleration sensor, a geomagnetic sensor, or a gyro sensor.

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