KR20220135717A - Method and electronic device for controlling load current - Google Patents

Abstract

An objective of the present invention is to improve the charging efficiency of an electronic pen. According to various embodiments of the present invention, an accessory cover for an electronic device comprises: a first region at least partially accommodating the electronic device; a second region extended from the first region; a first charging coil arranged to correspond to a coil member for wireless power transmission and reception of the electronic device in the first region; at least one second charging coil arranged in the second region; a switch unit electrically connecting the first charging coil and the second charging coil; and an electronic pen arranged in the second region to be at least partially detached, and receiving wireless power through the at least one second charging coil. Various other embodiments can be possible.

Description

ELECTRONIC DEVICE FOR CONTROLLING LOAD CURRENT

Various embodiments of the present disclosure relate to a method of charging an electronic pen and an electronic device.

The development of electronic devices can be applied to various fields closely related to our lives. These electronic devices are being released in various sizes according to their functions and user preferences. A housing forming the exterior of the electronic device or an accessory device (eg, a protective housing, a protective cover, etc.) separately mounted on the electronic device to protect at least a partial area of the electronic device is mounted on the electronic device.

In recent years, the convenience of use of the electronic device is improved by adding various additional functions to the accessory device in addition to the basic function for protecting the electronic device or improving aesthetics.

According to various embodiments, as the screen of the electronic device expands, the utility of the electronic pen increases, and a structural change for charging the electronic pen through the electronic device is required. According to an embodiment, the electronic pen may include a battery and a charging coil for charging the battery therein, and the battery may be wirelessly charged through the electronic device. For example, the wireless charging method may include a method of charging the battery of the electronic device without a separate physical charging line using a magnetic induction method or a resonance method. The electronic device may be designed in a form in which the electronic pen is mounted inside the electronic device, or in a form in which the electronic pen is attached to the outside for charging the electronic pen.

When the electronic pen is mounted inside the electronic device, an internal space of the electronic device may be reduced due to the mounting of the electronic pen, and battery capacity may decrease. When the electronic pen is attached to the outside of the electronic device, the electronic device may utilize magnetic force to attach the electronic pen. The electronic device may design an external region to which the electronic pen is attached to be different from the other regions, thereby impairing the external design of the electronic device. In addition, when the electronic pen is attached to the electronic device by magnetic force, there is a problem in that the risk of loss of the electronic pen increases.

Various embodiments of the present disclosure may provide an accessory device in which an electronic pen may be at least partially mounted on the accessory device and wireless charging is possible through the electronic device.

According to various embodiments, in an accessory cover for an electronic device, in a first area at least partially accommodating the electronic device, a second area extending from the first area, and in the first area, the wireless device of the electronic device A first charging coil disposed to correspond to a coil member for power transmission and reception, at least one second charging coil disposed in the second region, a switch unit electrically connecting the first charging coil and the second charging coil, and and an electronic pen that is at least partially detachably disposed in the second region and receives wireless power through the at least one second charging coil.

According to various embodiments, an electronic device includes a coil member for wireless power transmission and reception for wirelessly supplying power to an accessory cover, a sensor module including a hall sensor, and a processor operatively connected to the coil member and the sensor module can do. The processor, in response to the attachment of the accessory cover, checks a state of the accessory cover through the sensor module, checks whether the electronic pen is attached to the accessory cover, and places the electronic pen on the accessory cover When attached, based on the state of the accessory cover, at least one coil among a plurality of coils included in a charging coil disposed on the accessory cover is selected, and the electronic pen is charged using the selected at least one coil You can control the accessory cover to do so.

In a method according to various embodiments, an operation of detecting the attachment of an accessory cover in an electronic device, an operation of checking a state of the accessory cover, an operation of checking whether an electronic pen is attached to the accessory cover, and an operation of determining whether an electronic pen is attached to the accessory cover When the electronic pen is attached, an operation of selecting at least one coil from among a plurality of coils included in a charging coil disposed on the accessory cover based on the state of the accessory cover, and using the selected at least one coil to charge the electronic pen.

Various embodiments of the present disclosure may provide an accessory cover in which an electronic pen attached to the accessory cover can be charged through an electronic device. In the accessory cover, at least one charging coil may be disposed to correspond to an area to which the electronic pen is attached, and the electronic pen may be charged using the plurality of charging coils. By using a plurality of charging coils, charging efficiency for the electronic pen may be improved.

According to an embodiment, the electronic device may select at least one charging coil included in the accessory cover in response to opening or closing of the accessory cover, and may increase charging efficiency of the electronic pen. In addition, various effects directly or indirectly identified through this document may be provided.

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 in a network environment according to various embodiments of the present disclosure;
2 is an exploded perspective view of an accessory cover and an electronic device mounted thereon according to various embodiments of the present disclosure;
3 is a perspective view of an accessory cover on which an electronic device and an electronic pen are mounted, according to various embodiments of the present disclosure;
4 is a diagram illustrating at least one charging coil disposed on an electronic device, an electronic pen, and an accessory cover according to various embodiments of the present disclosure;
5 is a circuit diagram including a switch for selecting at least one charging coil disposed on the accessory cover according to various embodiments of the present invention.
6 is a block diagram of an electronic device, an electronic pen, and an accessory cover according to various embodiments of the present disclosure;
7 is a flowchart illustrating a method of charging an electronic pen through an accessory cover in an electronic device according to various embodiments of the present disclosure;
8 is an exemplary diagram illustrating a process in which an electronic pen is disposed and charged in the accessory cover in an open state of the accessory cover according to various embodiments of the present disclosure;
9 is an exemplary view illustrating a process in which an electronic pen is disposed and charged on the accessory cover in a closed state of the accessory cover according to various embodiments of the present disclosure;
10 is an exemplary diagram illustrating a situation in which an electronic device equipped with an accessory cover according to various embodiments of the present disclosure is wirelessly charged by an external electronic device (eg, a charging device).

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 . 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 , 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) 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) can 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 ( 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 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.

2 is an exploded perspective view of an accessory cover and an electronic device mounted thereon according to various embodiments of the present disclosure; 3 is a perspective view of an accessory cover on which an electronic device and an electronic pen are mounted, according to various embodiments of the present disclosure;

2 and 3 , the accessory cover 200 includes a first cover 210 , a second cover 220 , and a connection part 230 for integrally connecting the first cover 210 and the second cover 220 . ) may be included. According to an embodiment, the first cover 210 and the second cover 220 may be formed to have substantially the same size. According to an embodiment, the connection part 230 may include a region 231 in which the electronic pen 301 is disposed, and may have a structure that at least partially surrounds the electronic pen 301 . According to an embodiment, the first cover 210 may include a first plate part 211 and a first side part 212 extending in a vertical direction from at least a portion of an edge of the first plate 211 part. . According to an embodiment, the first side part 212 may be formed in a shape corresponding to at least a portion of the side surface 203 of the electronic device 101 (eg, the electronic device 101 of FIG. 1 ). According to an embodiment, the second cover 220 may include a second plate part 221 and a second side part 222 extending in a vertical direction from at least a portion of an edge of the second plate part 221 . have. According to an embodiment, the second side part 222 may also be formed in a shape corresponding to at least a portion of the side surface 203 of the electronic device 101 . According to another embodiment, the first side part 212 and the second side part 222 may be formed in a curved shape.

According to various embodiments, the accessory cover 200 may include a cradle 240 attached to the first plate part 211 of the first cover 210 . According to an embodiment, the cradle 240 may include a mounting part 241 that can accommodate at least a portion of the rear surface 202 and the side surface 203 of the electronic device 101 . According to an embodiment, the cradle 240 may be formed of a polymer and/or a metal material. For example, the cradle 240 may be formed of at least one of a metal material, GFRP, CFRP, rubber, silicon, PC, PC_ABS, and PC_FG. According to an embodiment, the electronic device 101 may be at least partially mounted on the accessory cover 200 based on the cradle 240 , the mounting part 241 , and the first side part 212 . The electronic device 101 may be at least partially fixed to the accessory cover 200 .

According to various embodiments, the electronic device 101 has a front surface 201 facing a specified direction, a rear surface 202 facing a direction opposite to the front surface 201 , and a space surrounding the space between the front surface 201 and the rear surface 202 . It can include a housing 205 (eg, a housing structure) that includes a side member 204 that includes a side 203 . According to an embodiment, the electronic device 101 may include a display (eg, the display module 160 of FIG. 1 ) that is disposed to be visible from the outside through substantially the entire area of the front surface 201 .

According to various embodiments, the first cover 210 of the accessory cover 200 may accommodate at least a portion of the electronic device 101 . According to an embodiment, the electronic device 101 may be fixed in such a way that it is mounted on the mounting part 241 of the cradle 240 disposed on the first plate part 211 of the first cover 210 . For example, in the electronic device 101 , the rear surface 202 faces the mounting portion 241 of the cradle 240 , and at least a portion of the side surface 203 is tightly fitted to the cradle 240 to the accessory cover 200 . can be fixed. According to an embodiment, when the electronic device 101 is used, the second cover 220 may maintain a first state (eg, an open state) opened from the first cover 210 . . According to an embodiment, when the electronic device 101 is not in use or for portability, the electronic device 101 is folded so that the second cover 220 overlaps the first cover 210 , and the display 160 . can maintain a second state (eg, a closed state) that protects the According to another embodiment, even in the second state (eg, closed state), the electronic device 101 performs at least some functions through the notification means 223 (eg, notification member) disposed on the second cover 220 . This may be done. For example, the notification means may provide a specific notification to the user through a control circuit including an LED indicator built into the second cover 220 . According to an embodiment, the control circuit including the notification means 223 may be wirelessly and/or wiredly connected to the electronic device 101 to receive data and power.

According to an embodiment, the accessory cover 200 may include a region 231 for at least partially attaching the electronic pen 301 . For example, in the accessory cover 200 , at least one magnetic member (eg, a magnet) may be disposed to correspond to the region 231 , and a magnetically responsive member (eg, a metallic member) of the electronic pen 301 . ) and the magnetic force, the electronic pen 301 may be attached.

According to an embodiment, the accessory cover 200 corresponds to the mounting portion 241 to which the electronic device 101 is mounted and the region 231 to which the electronic pen 301 is attached, and includes at least one charging coil. (eg a repeating coil) may be disposed. For example, the accessory cover 200 may transmit/receive signals to and from the electronic device 101 and the electronic pen 301 through at least one charging coil (eg, a relay coil). According to an embodiment, the first charging coil 251 disposed in the mounting portion 241 of the accessory cover 200 and at least one second charging coil disposed in the region 231 to which the electronic pen 301 is attached (not shown) (eg, the second charging coil 252 of FIG. 4 ) may be electrically connected. According to various embodiments, when the electronic device 101 is mounted on the accessory cover 200 , the electronic device 101 performs the electronic pen based on the first charging coil 251 and the second charging coil 252 . The battery 311 included in the 301 may be at least partially charged. For example, the electronic device 101 may transmit power to the first charging coil 251 of the accessory cover 200 through the mounted electronic device coil 261 (eg, a power transmission coil), and the first charging coil. Through 251 , power may be supplied to the at least one second charging coil 252 . When the electronic pen 301 is attached to the accessory cover 200 , the electronic pen 301 may wirelessly charge the battery 311 through the second charging coil 252 .

According to an embodiment, the electronic device 101 selects at least one second charging coil 252 for charging the electronic pen 301 based on the open state and/or the closed state of the accessory cover 200 . The battery 311 of the electronic pen 301 may be charged using the selected second charging coil 252 . According to an embodiment, charging efficiency may be improved by charging the battery 311 of the electronic pen 301 using a plurality of charging coils disposed on the accessory cover 200 .

4 is a diagram illustrating at least one charging coil disposed on an electronic device, an electronic pen, and an accessory cover according to various embodiments of the present disclosure;

According to an embodiment, the electronic device 101 may be mounted on the first cover 210 of the accessory cover 200 , and the electronic device coil 261 (eg, a power transmission coil) of the electronic device 101 may be connected to the electronic device 101 . Through this, power may be transmitted to the first charging coil 251 disposed on the first cover 210 . For example, the electronic device 101 may supply charging power to the first charging coil 251 through the charging circuit 411 included in the printed circuit board 410 (PCB), and the The external electronic device may be charged using the charging power. For example, the charging power supplied to the first charging coil 251 may be transferred to the at least one second charging coil 252 disposed in the connection part 230 of the electronic device 101 . According to an embodiment, the electronic pen 301 may be at least partially disposed in a region corresponding to the connection part 230 of the accessory cover 200 , and through the at least one second charging coil 252 , the electronic The battery 311 mounted inside the pen 301 may be charged. For example, power may be supplied from the second charging coil 252 to a charging coil included in the electronic pen 301 , and the battery 311 of the electronic pen 301 may be charged based on the supplied power. have.

According to an embodiment, the first charging coil 251 of the first cover 210 may be disposed to correspond to the position of the electronic device coil 261 of the electronic device 101 . At least one second charging coil 252 disposed on the connection part 230 of the first cover 210 may be disposed to correspond to a location of the charging coil included in the electronic pen 301 .

5 is a circuit diagram including a switch for selecting at least one charging coil disposed on the accessory cover according to various embodiments of the present invention.

According to an embodiment, the accessory cover 200 uses the first charging coil 251 for receiving charging power from the electronic device (eg, the electronic device 101 of FIG. 1 ) and the supplied charging power, At least one second charging coil 252 for charging the electronic pen (eg, the electronic pen 301 of FIG. 3 ) may be included. According to one embodiment, the accessory cover 200 is at least one of the at least one second charging coil 252 (eg, the first coil 252-1, the second coil 252-2, and / Alternatively, a switch unit 520 for selecting the third coil 252-3) may be included. According to an embodiment, the accessory cover 200 may include a control unit 510 for at least partially controlling the switch unit 520 . According to another embodiment, when the switch unit 520 is controlled by the electronic device 101 , the control unit 510 of the accessory cover 200 may be omitted.

According to an embodiment, the processor of the electronic device 101 (eg, the processor 120 of FIG. 1 ) checks a state (eg, an open state, a closed state) of the accessory cover 200 , and the accessory cover 200 ), the switch unit 520 may be controlled to select the at least one second charging coil 252 . For example, the electronic device 101 may include a sensor module (eg, the sensor module 176 of FIG. 1 , a Hall sensor, and a Hall IC) for detecting the state of the accessory cover 200 , and the sensor module By using 176 , it is possible to check the state of the accessory cover 200 . For another example, the electronic device 101 may receive a signal from the accessory cover 200 using the NFC IC, and obtain information about the state of the accessory cover 200 through the switch unit 520 . can do. The electronic device 101 may check the state of the accessory cover 200 based on the obtained information. According to an embodiment, the processor 120 includes a first coil 252-1 and a second coil 252-2 included in at least one second charging coil 252 based on the state of the accessory cover 200 . ), and/or at least one of the third coils 252 - 3 may be selected. For example, when the accessory cover 200 is in an open state, the processor 120 may control the switch unit 520 to select the second coil 252 - 2 , and the accessory cover 200 is closed. In this state, the processor 120 may control the switch unit 520 to select the first coil 252-1 and the third coil 252-3. According to an embodiment, each of the first coil 252-1, the second coil 252-2, and/or the third coil 252-3 may include a plurality of coil members.

According to another embodiment, the control unit 510 of the accessory cover 200 checks the state (eg, open state, closed state) of the accessory cover 200, and through the first charging coil 251, the accessory cover ( Information related to the state of 200 may be provided to the electronic device 101 .

According to an embodiment, the processor 120 of the electronic device 101 may detect a position where the electronic pen 301 is attached using the at least one second charging coil 252 , and The switch unit 520 may be controlled to select the corresponding at least one second charging coil 252 . For example, the processor 120 may detect a change in current according to the attachment of the electronic pen 301 , and may identify a position where the electronic pen 301 is attached based on the change in the current. For example, when the electronic pen 301 is attached to a position where the second coil 252 - 2 is disposed, the processor 120 may select the second coil 252 - 2 . According to an embodiment, the control unit 510 checks a position to which the electronic pen 301 is attached, selects at least one coil corresponding to the identified position, and uses the selected at least one coil, The pen 301 may be charged. For example, the battery 311 of the electronic pen 301 may be charged through a charging coil included in the electronic pen 301 .

6 is a block diagram of an electronic device, an electronic pen, and an accessory cover according to various embodiments of the present disclosure;

Referring to FIG. 6 , the electronic device (eg, the electronic device 101 of FIG. 1 ) includes a processor (eg, the processor 120 of FIG. 1 ), a memory (eg, the memory 130 of FIG. 1 ), and a sensor module ( Example: sensor module 176 of FIG. 1 ), a power management module (eg, power management module 188 of FIG. 1 ), and/or a battery (eg, battery 189 of FIG. 1 ). The power management module 188 may include an electronic device coil 261 . The accessory cover 200 may include a first charging coil 251 , at least one second charging coil 252 , a control unit 510 , and/or a switch unit 520 . The at least one second charging coil 252 may include a first coil 252-1, a second coil 252-2, and/or a third coil 252-3. The electronic pen 301 may include a charging coil 312 and/or a battery 311 . According to one embodiment, the electronic device coil 261 , the first charging coil 251 , the at least one second charging coil 252 , and/or the charging coil 312 is a category of a repeating coil ( e.g. category).

According to an embodiment, the electronic device 101 may be mounted on the accessory cover 200 and may be operatively connected to the accessory cover 200 . The electronic pen 301 may be at least partially attached to the accessory cover 200 , and may be operatively connected to the accessory cover 200 . For example, the electronic device 101 and the accessory cover 200 are operatively based on the electronic device coil 261 mounted on the electronic device 101 and the first charging coil 251 of the accessory cover 200 . The electronic pen 301 and the accessory cover 200 are based on the charging coil 312 mounted on the electronic pen 301 and at least one second charging coil 252 of the accessory cover 200 . , can be operatively linked. According to an embodiment, the electronic device 101 may supply charging power to the first charging coil 251 of the accessory cover 200 , and the accessory cover 200 may supply charging power to the first charging coil 251 . Charging power may be transmitted to the electronic pen 301 through the second charging coil 252 . The electronic pen 301 may charge the battery 311 using the charging power.

According to an embodiment, the electronic device coil 261 of the electronic device 101 may typically operate in the RX mode. According to an embodiment, the electronic device 101 may detect whether the electronic pen 301 is attached to the accessory cover 200 , and in response to the attachment of the electronic pen 301 , the electronic device 101 is operating in the RX mode. The electronic device coil 261 may be changed to a TX mode. The electronic device 101 may perform a wireless charging function for the electronic pen 301 mounted on the accessory cover 200 by using the electronic device coil 261 operating in the TX mode.

According to an embodiment, the processor 120 executes a program (eg, the program 140 of FIG. 1 ) stored in the memory 130 to control at least one other component (eg, a hardware or software component). and can perform various data processing or operations. For example, the processor 120 through the accessory cover 200, when wirelessly charging the electronic pen 301, based on at least one program 140, the accessory cover ( At least one of the controller 510 and/or the switch 520 of the 200 may be partially controlled.

According to an embodiment, the memory 130 may store data for at least partially managing power transmitted to the electronic pen 301 during wireless charging of the electronic pen 301 .

According to an embodiment, the sensor module 176 may include a hall sensor (eg, a Hall sensor, a Hall IC) for detecting a state (eg, an open state, a closed state) of the accessory cover 200 . The processor 120 may check the state of the accessory cover 200 through the hall sensor, and select at least one second charging coil 252 based on the state of the accessory cover 200 .

According to an embodiment, the power management module 188 may manage power supplied from an external electronic device (eg, the electronic devices 102 and 104 of FIG. 1 , the charging device), and is mounted on the electronic device 101 . It is possible to supply charging power to the accessory cover 200 . The power management module 188 may include an electronic device coil 261 , and may supply charging power to the accessory cover 200 through the electronic device coil 261 .

According to an embodiment, the battery 189 may supply power to the electronic device coil 261 of the power management module 188 to transmit the power to the accessory cover 200 . The battery 189 may be charged based on power supplied from an external electronic device (eg, a charging device).

According to an embodiment, the electronic device 101 may supply charging power to the accessory cover 200 through the electronic device coil 261 . For example, the electronic device 101 may detect the electronic pen 301 attached to the accessory cover 200, and in response to the attachment of the electronic pen 301, the electronic device coil ( 261) can be changed to TX mode. The electronic device 101 may perform a wireless charging function for the electronic pen 301 attached to the accessory cover 200 by using the electronic device coil 261 operating in the TX mode.

According to an embodiment, the external electronic device 1001 charges the battery 189 of the electronic device 101 and at least one charging coil (eg, the first charging coil) disposed on the accessory cover 200 at substantially the same time. The electronic pen 301 attached to the accessory cover 200 may be charged through the coil 251 and the second charging coil 252 ). For example, the electronic device 101 may receive charging power from the external electronic device 1001 through the electronic device coil 261 operating in the RX mode, and may charge the battery 189 . For example, the first charging coil 251 of the accessory cover 200 may receive charging power from the external electronic device 1001 , and may receive charging power from the electronic pen 301 through the second charging coil 252 . The charging power may be transmitted. According to an embodiment, the external electronic device 1001 performs a wireless charging function on the battery 189 of the electronic device 101 while simultaneously performing a wireless charging function on the battery 311 of the electronic pen 301 . can do.

According to another embodiment, the electronic device 101 wirelessly charges the battery 189 using charging power supplied from an external electronic device (eg, a charging device), and is attached to the accessory cover 200 at substantially the same time. It is also possible to perform a wireless charging function for the used electronic pen 301 . For example, the electronic device 101 may charge the battery 189 based on charging power supplied from the external electronic device 1001 , and may be included in the accessory cover 200 using the battery 189 . By supplying charging power to the at least one charging coil, the electronic pen 301 attached to the accessory cover 200 may be at least partially charged.

According to an embodiment, the accessory cover 200 may receive charging power from the electronic device 101 and wirelessly charge the electronic pen 301 using the supplied charging power.

According to an embodiment, the first charging coil 251 of the accessory cover 200 may receive charging power from the electronic device coil 261 of the electronic device 101 .

According to an embodiment, the control unit 510 of the accessory cover 200 converts the supplied charging power to at least one second charging coil 252 (eg, the first coil 252-1, the second coil 252). -2), and/or the third coil 252-3) may control the switch unit 520 to transmit. According to an embodiment, the controller 510 may at least partially control the switch unit 520 under the control of the processor 120 of the electronic device 101 . According to another embodiment, the controller 510 may check the attachment position of the electronic pen 301 through the at least one second charging coil 252 and select a coil corresponding to the confirmed attachment position. The switch unit 520 may be controlled. According to another embodiment, the controller 510 may transmit information related to the attachment of the electronic pen 301 to the electronic device 101 .

According to an embodiment, the switch unit 520 of the accessory cover 200 is a first coil 252-1, a second coil 252-2, and/or a second included in the second charging coil 252. At least one coil among the three coils 252 - 3 may be selected.

According to an embodiment, the second charging coil 252 of the accessory cover 200 includes the first coil 252-1, the second coil 252-2, and/or the third coil 252-3. may be included, and the electronic pen 301 may be charged using at least one coil. According to an embodiment, the electronic pen 301 may be attached based on an area in which the second charging coil 252 is disposed, and may be wirelessly charged through the second charging coil 252 .

According to an embodiment, the accessory cover 200 may receive charging power from the electronic device 101 and wirelessly charge the electronic pen 301 using the charging power. The accessory cover 200 may select at least one second charging coil 252 through the switch unit 520 , and use the electronic pen 301 based on the selected at least one second charging coil 252 . can be charged efficiently. The accessory cover 200 may select at least one second charging coil 252 to improve charging efficiency for the electronic pen 301 .

According to an embodiment, the electronic pen 301 may receive charging power through the accessory cover 200 , and may charge the battery 311 using the supplied charging power.

According to an embodiment, the charging coil 312 of the electronic pen 301 may receive charging power from at least one second charging coil 252 of the accessory cover 200 . According to an embodiment, the charging coil 312 of the electronic pen 301 may be disposed based on the position of the at least one second charging coil 252 of the accessory cover 200 .

According to an embodiment, the battery 311 of the electronic pen 301 may store power for performing a function of the electronic pen 301 . The battery 311 may be charged by receiving charging power from the charging coil 312 .

According to various embodiments, in the accessory cover 200 for the electronic device 101, a first area at least partially accommodating the electronic device 101, a second area extending from the first area, and the second area In region 1, a first charging coil (eg, first charging coil 251) disposed to correspond to a coil member (eg, electronic device coil 261) for wireless power transmission/reception of the electronic device, in the second region disposed at least one second charging coil (eg, a second charging coil 252), a switch unit 520 electrically connecting the first charging coil 251 and the second charging coil 252, and The electronic pen 301 may include an electronic pen 301 that is at least partially detachably disposed in the second region and receives wireless power through the at least one second charging coil 252 .

According to an embodiment, the at least one second charging coil 252 includes a first coil 252-1, a second coil 252-2, and/or a third coil 252-3. can do.

According to an embodiment, the switch unit 520 may include at least one of the first coil 252-1, the second coil 252-2, and/or the third coil 252-3. can be selected.

According to an embodiment, when the accessory cover 200 is in an open state, the second coil 252-2 is selected through the switch unit 520 under the control of the electronic device 101, When the accessory cover 200 is in the closed state, the first coil 252-1 and the third coil 252-3 are connected through the switch unit 520 under the control of the electronic device 101 . You can choose.

According to one embodiment, the accessory cover 200 further includes a magnetic force member for checking the state of the accessory cover 200, using the hall sensor in the electronic device 101, the magnetic force member , at least one of an open state and a closed state of the accessory cover 200 may be checked.

According to an embodiment, the first coil 252-1, the second coil 252-2, and/or the third coil 252-3 may be implemented based on a plurality of coil members. .

According to an embodiment, in response to attachment of the electronic pen 301 to the second region, the first coil 252-1, the second coil 252-2, and/or the third At least one of the coils 252 - 3 may be selected.

According to an embodiment, the electronic pen 301 may be charged using the wireless power supplied to the second charging coil 252 based on the plurality of coil members corresponding to the selected coil.

According to an embodiment, the electronic pen 301 may be at least partially attached to the second area based on a magnetic member at least partially disposed in the second area.

According to an embodiment, in a state in which the electronic device 101 is mounted in the first area, the electronic device 101 may be wirelessly charged by an external electronic device.

According to an embodiment, when the electronic device 101 is wirelessly charged using the external electronic device, charging power is supplied to the second charging coil 252 through the first charging coil 251 . and charging power supplied to the second charging coil 252 may be used to charge the electronic pen 301 .

According to various embodiments, in the electronic device 101 , a sensor module including a coil member for wireless power transmission/reception (eg, the electronic device coil 261 ) for supplying wireless power to the accessory cover 200 , and a hall sensor 176 , and a processor 120 operatively coupled to the coil member 261 and the sensor module 176 . The processor 120, in response to the mounting of the accessory cover 200, through the sensor module 176, to check the state of the accessory cover 200, the electronic pen ( 301) is attached, and when the electronic pen 301 is attached to the accessory cover 200, based on the state of the accessory cover 200, charging disposed on the accessory cover 200 At least one coil among a plurality of coils included in the coil may be selected, and the accessory cover 200 may be controlled to charge the electronic pen 301 using the selected at least one coil.

According to one embodiment, the processor 120, corresponding to the state of the accessory cover 200, the accessory cover 200 to select at least one coil from among a plurality of coils disposed on the accessory cover 200 ) of the switch unit 520 can be controlled.

7 is a flowchart illustrating a method of charging an electronic pen through an accessory cover in an electronic device according to various embodiments of the present disclosure;

According to an embodiment, the electronic device (eg, the electronic device 101 of FIG. 1 ) supplies charging power to the accessory cover 200 while being mounted on the accessory cover (eg, the accessory cover 200 of FIG. 2 ). Also, the accessory cover 200 may transmit the supplied charging power to the electronic pen (eg, the electronic pen 301 of FIG. 3 ). The electronic device 101 checks a state (eg, an open state and/or a closed state) of the accessory cover 200 , selects at least one charging coil based on the state, and uses the selected charging coil to enable the electronic pen 301 can be wirelessly charged.

In operation 701 , the processor of the electronic device 101 (eg, the processor 120 of FIG. 1 ) may detect the attachment of the accessory cover 200 . For example, the charging coil mounted on the electronic device 101 (eg, the electronic device coil 261 of FIG. 2 ) may include a first charging coil (eg, the first charging coil of FIG. 2 ) disposed on the accessory cover 200 . 251 ), and the processor 120 may check whether the accessory cover 200 is mounted through the electronic device coil 261 .

In operation 703, the processor 120 uses a sensor module (eg, the sensor module 176 of FIG. 1 , and a hall sensor (eg, Hall sensor, Hall IC)) of the accessory cover 200 (eg, an open state). , and/or closed state). In the accessory cover 200 , a magnetic member may be disposed to correspond to the position of the Hall sensor of the electronic device 101 . For example, the accessory cover 200 is in one of a closed state covering the display (eg, the display module 160 of FIG. 1 ) of the electronic device 101 and an open state in which the display is exposed to the outside. can work When the accessory cover 200 is in the closed state, the hall sensor of the electronic device 101 and the magnetic member of the accessory cover 200 may be in a substantially close contact state. The processor 120 may check a state (eg, an open state and/or a closed state) of the accessory cover 200 through the sensor module 176 (eg, a hall sensor). According to various embodiments, operation 703 may be omitted. According to another embodiment, in operation 701 , the processor 120 may detect whether the accessory cover 200 is mounted, and in operation 705 , the electronic pen 301 at least partially mounted on the accessory cover 200 is checked. can

In operation 705 , the processor 120 may determine whether the electronic pen 301 is mounted on the accessory cover 200 . For example, the accessory cover 200 and the electronic pen 301 may be attached to each other by a magnetic member, and the second charging coil of the accessory cover 200 (eg, the second charging coil 252 of FIG. 4 )) Corresponding to this arranged area, an electronic pen 301 may be attached. The second charging coil 252 of the accessory cover 200 may be operatively connected to the charging coil 312 of the electronic pen 301 . The processor 120 may check whether the electronic pen 301 is mounted through the second charging coil 252 of the accessory cover 200 . According to an embodiment, the electronic device coil 261 may typically operate in a receive (RX) mode. The processor 120 may detect whether the electronic pen 301 is mounted through the second charging coil 252 , and in response to the mounting of the electronic pen 301 , RX the electronic device coil 261 . Mode can be changed to TX (transmit) mode. For example, the processor 120 may transmit charging power to the first charging coil 251 and the second charging coil 252 based on the electronic device coil 261 changed to the TX mode, and the electronic pen ( 301) may perform a charging function.

When the electronic pen 301 is mounted on the accessory cover 200 in operation 705 , in operation 707 , the processor 120 performs at least one charging coil (eg, in FIG. 2 ) based on the state of the accessory cover 200 . The second charging coil 252, the first coil 252-1 of FIG. 6, the second coil 252-2, and/or the third coil 252-3) may be selected. For example, when the electronic pen 301 is mounted on the accessory cover 200 in the open state, the processor 120 may select the second coil 252 - 2 and is placed on the accessory cover 200 in the closed state. When the electronic pen 301 is mounted, the processor 120 may select the first coil 252-1 and the third coil 252-3. According to an embodiment, the processor 120 may select at least one charging coil to improve the wireless charging efficiency of the electronic pen 301 .

In operation 709 , the processor 120 may charge the electronic pen 301 using the selected charging coil. The electronic pen 301 includes a charging coil (eg, the charging coil 312 of FIG. 6 ) and a battery 311 , and the charging coil 312 operates with at least one charging coil selected from the accessory cover 200 . can be negatively connected. According to an embodiment, the electronic pen 301 may receive power from the accessory cover 200 through the charging coil 312 , and use the supplied power to charge the battery 311 . have.

According to an embodiment, the processor 120 may detect whether the electronic pen 301 is attached or detached while charging the electronic pen 301 . For example, when the electronic pen 301 is detached from the accessory cover 200 , the processor 120 may change the electronic device coil 261 operating in the TX mode to the RX mode.

According to another embodiment, the processor 120 may detect whether the battery 311 of the electronic pen 301 is fully charged. For example, when the battery 311 is fully charged, the electronic pen 301 may notify the electronic device 101 that the battery 311 is fully charged using a BLE (eg, Bluetooth low energy) method. The processor 120 may check whether the battery 311 is fully charged through the electronic pen 301 , and when the battery 311 is fully charged, change the electronic device coil 261 operating in the TX mode to the RX mode. can

According to an embodiment, the processor 120 may activate the “wireless battery sharing” icon in the quick panel (eg, quick menu, quick interface) when the electronic device coil 261 is operating in the TX mode. and may indicate that the electronic pen 301 is currently being charged. According to an embodiment, the processor 120 may display a charging device (eg, the electronic pen 301 , a watch, and/or a buzzer (earset)) based on the user interface.

8 is an exemplary diagram illustrating a process in which an electronic pen is disposed and charged in the accessory cover in an open state of the accessory cover according to various embodiments of the present disclosure;

Referring to FIG. 8 , in a state in which an electronic device (eg, the electronic device 101 of FIG. 1 ) is mounted on the accessory cover (eg, the accessory cover 200 of FIG. 2 ), the accessory cover 200 may be in an open state. can The electronic pen (eg, the electronic pen 301 of FIG. 4 ) includes at least one second charging coil 252 (eg, the first coil 252-1 , the second coil 252-2 of the accessory cover 200 ). ), and/or the third coil 252-3) may be attached.

According to an embodiment, the display module 160 may be disposed on the front side of the electronic device 101 , and the electronic device coil 261 may be disposed adjacently on the back side of the electronic device 101 . The electronic device coil 261 of the electronic device 101 is operatively connected to the first charging coil 251 of the accessory cover 200 , and the electronic device 101 is connected to the accessory through the electronic device coil 261 . Charging power may be supplied to the cover 200 . The first charging coil 251 and the at least one second charging coil 252 of the accessory cover 200 are in an electrically connected state, and the charging power supplied through the first charging coil 251 is at least one second charging coil 251 . 2 may be transmitted to the charging coil 252 . According to an embodiment, the accessory cover 200 may supply charging power to the electronic pen 301 through at least one second charging coil 252 . The electronic pen 301 includes at least one charging coil (eg, the charging coil 312 of FIG. 6 ) and a battery (eg, the battery 311 of FIG. 6 ), and includes the at least one charging coil 312 . Through this, the battery 311 may be charged using the supplied charging power.

According to an embodiment, the electronic device coil 261 may typically operate in the RX mode. In a state in which the electronic device coil 261 operates in the RX mode, the electronic device 101 may detect whether the electronic pen 301 is at least partially attached to the second charging coil 252 . In response to the attachment of the electronic pen 301 to the second charging coil 252 , the electronic device 101 may change the electronic device coil 261 in the RX mode to the TX mode, and the electronic device in the TX mode Charging power may be supplied to the first charging coil 251 and the second charging coil 252 through the coil 261 . According to an embodiment, the electronic device 101 may change the operation mode of the electronic device coil 261 operating in the RX mode to the TX mode and perform a wireless charging function for the electronic pen 301 . .

According to an embodiment, when the electronic device 101 charges the electronic pen 301 through the accessory cover 200 , a plurality of charging coils may be used, and charging efficiency of the electronic pen 301 is improved. can do it

According to an embodiment, the accessory cover 200 uses a switch unit (eg, the switch unit 520 of FIG. 5 ), the first coil 252-1, the second coil 252-2, and / Alternatively, at least one of the third coils 252 - 3 may be selected. According to an embodiment, when the electronic pen 301 is attached to the accessory cover 200 , the electronic device 101 determines a position (eg, area) to which the electronic pen 301 is attached based on a change in current. , and at least one coil corresponding to the position of the electronic pen 301 may be selected. According to an embodiment, in response to attachment of the electronic pen 301 to the accessory cover 200 , the electronic device 101 automatically selects at least one coil corresponding to the position of the electronic pen 301 . and may automatically perform a wireless charging function for the electronic pen 301 . According to another embodiment, the accessory cover 200 may include a control unit (eg, the control unit 510 of FIG. 5 ), and detects attachment of the electronic pen 301 under the control of the control unit 510 , Information related to the sensing may be provided to the electronic device 101 .

Referring to FIG. 8 , the electronic device 101 may detect that the electronic pen 301 is attached to a position corresponding to the second coil 252-2 included in the accessory cover 200, and the electronic pen ( 301), the second coil 252-2 may be selected to perform a wireless charging function. The electronic device 101 may supply charging power to the first charging coil 251 of the accessory cover 200 through the electronic device coil 261 , and by at least partially controlling the switch unit 520 , the second The charging power supplied to the first charging coil 251 may be transferred to the second coil 252 - 2 . The electronic pen 301 may receive charging power from the second coil 252 - 2 and wirelessly charge the battery 311 . According to an embodiment, the second coil 252 - 2 may include a plurality of coil members, and by using the plurality of coil members, charging efficiency may be improved.

According to an embodiment, the electronic device 101 may detect whether the electronic pen 301 is attached or detached while performing a wireless charging function for the electronic pen 301 . According to an embodiment, when the electronic pen 301 is detached from the accessory cover 200 , the electronic device 101 may change the electronic device coil 261 operating in the TX mode to the RX mode.

According to another embodiment, the electronic device 101 may detect whether the battery 311 of the electronic pen 301 is fully charged. According to an embodiment, when the battery 311 of the electronic pen 301 is fully charged, the electronic pen 301 may transmit information that the battery 311 is fully charged to the electronic device 101 in a BLE method. According to an embodiment, when the battery 311 of the electronic pen 301 is fully charged, the electronic device 101 may change the electronic device coil 261 operating in the TX mode to the RX mode.

9 is an exemplary view illustrating a process in which an electronic pen is disposed and charged on the accessory cover in a closed state of the accessory cover according to various embodiments of the present disclosure;

Referring to FIG. 9 , in a state in which an electronic device (eg, the electronic device 101 of FIG. 1 ) is mounted on the accessory cover (eg, the accessory cover 200 of FIG. 2 ), the accessory cover 200 may be in a closed state. can The electronic pen (eg, the electronic pen 301 of FIG. 4 ) includes at least one second charging coil 252 (eg, the first coil 252-1 , the second coil 252-2 of the accessory cover 200 ). ), and/or the third coil 252-3) may be attached.

According to an embodiment, the electronic device coil 261 of the electronic device 101 is operatively connected to the first charging coil 251 of the accessory cover 200, and the electronic device 101 is the electronic device coil ( 261), it is possible to supply charging power to the accessory cover 200. The first charging coil 251 and the at least one second charging coil 252 of the accessory cover 200 (eg, the first coil 252-1, the second coil 252-2, and/or the third The coil 252 - 3 ) is electrically connected, and the charging power supplied through the first charging coil 251 may be transmitted to the at least one second charging coil 252 . According to an embodiment, the accessory cover 200 may supply charging power to the electronic pen 301 through the at least one second charging coil 252 . The electronic pen 301 includes at least one charging coil (eg, the charging coil 312 of FIG. 6 ) and a battery (eg, the battery 311 of FIG. 6 ), and includes the at least one charging coil 312 . Through this, the battery 311 may be charged using the supplied charging power.

According to an embodiment, the electronic device coil 261 may typically operate in the RX mode. In a state in which the electronic device coil 261 operates in the RX mode, the electronic device 101 may detect whether the electronic pen 301 is at least partially attached to the accessory cover 200 . In response to the attachment of the electronic pen 301 to the accessory cover 200 , the electronic device 101 may change the electronic device coil 261 in the RX mode to the TX mode, and the electronic device coil in the TX mode ( 261 ), charging power may be supplied to at least one charging coil included in the accessory cover 200 . According to an embodiment, when the electronic pen 301 is attached to the accessory cover 200, the electronic device 101 may change the operation mode of the electronic device coil 261 operating in the RX mode to the TX mode, , a wireless charging function for the electronic pen 301 may be performed.

Referring to FIG. 9 , the electronic device 101 may detect that the electronic pen 301 is attached to the accessory cover 200 in the closed state, and to perform a wireless charging function for the electronic pen 301, Among the first coil 252-1, the second coil 252-2, and/or the third coil 252-3, the first coil 252-1 and the third coil 252-3 are selected together. can The electronic device 101 may supply charging power to the first charging coil 251 of the accessory cover 200 through the electronic device coil 261 , and by at least partially controlling the switch unit 520 , the second The charging power supplied to the first charging coil 251 may be transferred to the first coil 252-1 and the third coil 252-3. The electronic pen 301 may receive charging power from the first coil 252-1 and the third coil 252-3 and wirelessly charge the battery 311 . According to an embodiment, the electronic pen 301 may receive charging power substantially simultaneously from the first coil 252-1 and the third coil 252-3, and wirelessly Charging efficiency may be improved.

According to another embodiment, the electronic device 101 may detect that the electronic pen 301 is attached to the accessory cover 200 in a closed state, and the first coil 252-1 and the second coil 252-2 ), and/or the third coil 252 - 3 may be activated substantially simultaneously. The electronic device 101 may supply charging power to the electronic pen 301 by using the activated coils, and wireless charging efficiency of the electronic pen 301 may be improved.

10 is an exemplary diagram illustrating a situation in which an electronic device equipped with an accessory cover according to various embodiments of the present disclosure is wirelessly charged by an external electronic device (eg, a charging device).

Referring to FIG. 10 , the electronic device (eg, the electronic device 101 of FIG. 1 ) has an accessory cover (eg, the accessory cover 200 of FIG. 2 ) mounted on the external electronic device 1001 (eg: A wireless charging function may be performed through the electronic devices 102 and 104 of FIG. 1 , the charging device. The electronic device 101 to which the accessory cover 200 is mounted may be at least partially disposed to correspond to the charging coil 1000 of the external electronic device 1001 , and to be wirelessly charged through the external electronic device 1001 . can According to an embodiment, the external electronic device 1001 may supply charging power through the charging coil 1000 , and the electronic device 101 may provide an electronic device coil (eg, the electronic device coil 261 of FIG. 2 ). Through , the charging power may be received. For example, the electronic device coil 261 may typically operate in the RX mode and receive charging power supplied from the external electronic device 1001 . The electronic device 101 may charge the battery of the electronic device 101 (eg, the battery 189 of FIG. 1 ) based on the charging power.

According to an embodiment, the external electronic device 1001 charges the battery 189 of the electronic device 101 and at least one charging coil (eg, the first charging coil) disposed on the accessory cover 200 at substantially the same time. The electronic pen 301 attached to the accessory cover 200 may be charged through the coil 251 and the second charging coil 252 ). For example, the electronic device 101 may receive charging power from the external electronic device 1001 through the electronic device coil 261 operating in the RX mode, and may charge the battery 189 . For example, the first charging coil 251 of the accessory cover 200 may receive charging power from the external electronic device 1001 , and may receive charging power from the electronic pen 301 through the second charging coil 252 . The charging power may be transmitted. According to an embodiment, the external electronic device 1001 performs a wireless charging function on the battery 189 of the electronic device 101 while simultaneously performing a wireless charging function on the battery 311 of the electronic pen 301 . can do.

According to another embodiment, the electronic device 101 performs a wireless charging function for the battery 189 using the charging power supplied from the external electronic device 1001 , and at substantially the same time, it is connected to the accessory cover 200 . A wireless charging function for the attached electronic pen 301 may be performed. For example, the electronic device 101 may charge the battery 189 based on charging power supplied from the external electronic device 1001 , and may be included in the accessory cover 200 using the battery 189 . By supplying charging power to the at least one charging coil, the electronic pen 301 attached to the accessory cover 200 may be at least partially charged. According to another embodiment, the electronic device 101 may perform a wireless charging function for the battery 189 through the external electronic device 1001 , and substantially simultaneously, through the accessory cover 200 , the electronic pen A wireless charging function for the battery 311 of the 310 may be performed.

According to another embodiment, the electronic device 101 may stop wireless charging of the battery 189 and use the external electronic device 1001 to charge the accessory so that the battery 311 of the electronic pen 301 is charged. The cover 200 may be at least partially controlled.

In a method according to various embodiments, an operation of detecting the attachment of an accessory cover (eg, the accessory cover 200 of FIG. 2 ) in an electronic device (eg, the electronic device 101 of FIG. 1 ), the accessory cover 200 ), an operation of checking whether an electronic pen (eg, the electronic pen 301 of FIG. 3 ) is attached to the accessory cover 200 , an operation of checking whether the electronic pen 301 is attached to the accessory cover 200 . ) is attached, based on the state of the accessory cover 200, an operation of selecting at least one coil from among a plurality of coils included in a charging coil disposed on the accessory cover 200, and the selected at least one and charging the electronic pen 301 using a coil of

According to an embodiment, the operation of checking the state of the accessory cover 200 may include a Hall sensor disposed on the electronic device 101 and a magnetic force member disposed on the accessory cover 200 corresponding to the Hall sensor. Based on , it may include an operation of checking one of the open state and the closed state of the accessory cover 200 .

According to an embodiment, the charging coil includes a first charging coil for receiving wireless power from the electronic device 101 (eg, the first charging coil 251 of FIG. 4 ), and the electronic pen 301 . a second charging coil (eg, the second charging coil 252 of FIG. 4 ) for supplying the wireless power to the first charging coil 251 and the second charging coil 252 are electrically can be connected

According to an embodiment, the sensing of the attachment of the accessory cover 200 includes the coil member 261 disposed on the electronic device 101 and the first charging coil disposed on the accessory cover 200 ( 251 ), detecting whether the accessory cover 200 is mounted on the electronic device 101 may be included.

According to an embodiment, the second charging coil 252 includes a first coil 252-1, a second coil 252-2, and/or a third coil 252-3, wherein the at least The operation of selecting one coil includes an operation of selecting the second coil 252 - 2 when the accessory cover 200 is in an open state, and an operation of selecting the second coil 252 - 2 when the accessory cover 200 is in a closed state. It may include an operation of selecting the first coil 252-1 and the third coil 252-3.

The method according to an embodiment includes, in a state in which the electronic device 101 is mounted on the accessory cover 200, is at least partially disposed on an external electronic device, receives wireless power from the external electronic device, and using the wireless power to charge a battery of the electronic device 101 (eg, the battery 189 of FIG. 1 ).

The method according to an embodiment includes an operation of supplying charging power to a charging coil of the accessory cover 200 while charging the battery 189 using the wireless power supplied from the external electronic device and the supplied charging power. The method may further include an operation of charging the electronic pen 301 using .

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 terms used therein are not intended to limit the technical features described in this document to specific embodiments, but it 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 "A , B, or C," each of which 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 makes it possible for the device to be operated to perform at least one function according to the called at least one command. 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 in a computer program product (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 or online between smartphones (eg: smartphones). In the case of online distribution, at least a portion 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 charging 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.

101: electronic device 120: processor
130: memory 188: power management module
189: battery 200: accessory cover
251: first charging coil 252: second charging coil
252-1: first coil 252-2: second coil
252-3: third coil 261: electronic device coil
301 electronic pen 311 electronic pen battery

Claims (20)

An accessory cover for an electronic device, comprising:
a first area at least partially accommodating the electronic device;
a second region extending from the first region;
a first charging coil disposed to correspond to a coil member for wireless power transmission and reception of the electronic device in the first area;
at least one second charging coil disposed in the second region;
a switch unit electrically connecting the first charging coil and the second charging coil; and
An accessory cover including an electronic pen that is at least partially detachably disposed in the second region and receives wireless power through the at least one second charging coil. The method of claim 1,
The at least one second charging coil includes a first coil, a second coil, and/or a third coil. 3. The method of claim 2,
The switch unit accessory cover for selecting at least one of the first coil, the second coil, and / or the third coil. 4. The method of claim 3,
When the accessory cover is open, the second coil is selected through the switch unit under the control of the electronic device,
When the accessory cover is in a closed state, the accessory cover selects the first coil and the third coil through the switch unit under the control of the electronic device. 5. The method of claim 4,
Further comprising a magnetic member for checking the state of the accessory cover,
An accessory cover for checking at least one of an open state and a closed state of the accessory cover with respect to the magnetic member by using a hall sensor in the electronic device. 3. The method of claim 2,
The first coil, the second coil, and/or the third coil is an accessory cover implemented based on a plurality of coil members. 7. The method of claim 6,
An accessory cover for selecting at least one of the first coil, the second coil, and/or the third coil in response to attachment of the electronic pen to the second region. 8. The method of claim 7,
An accessory cover for charging the electronic pen using wireless power supplied to the second charging coil based on the plurality of coil members corresponding to the selected coil. The method of claim 1,
The electronic pen is an accessory cover that is at least partially attached to the second region based on a magnetic force member at least partially disposed in the second region. The method of claim 1,
An accessory cover in which the electronic device is wirelessly charged by an external electronic device while the electronic device is mounted in the first area. 11. The method of claim 10,
When charging the electronic device wirelessly using the external electronic device, charging power is supplied to the second charging coil through the first charging coil,
An accessory cover for charging the electronic pen using the charging power supplied to the second charging coil. In an electronic device,
A coil member for wireless power transmission and reception for supplying wireless power to the accessory cover;
a sensor module including a hall sensor; and
a processor operatively coupled to the coil member and the sensor module; including,
The processor is
In response to the mounting of the accessory cover, through the sensor module, check the state of the accessory cover,
Check whether the electronic pen is attached to the accessory cover,
When the electronic pen is attached to the accessory cover, based on the state of the accessory cover, selecting at least one coil from among a plurality of coils included in the charging coil disposed on the accessory cover,
An electronic device for controlling the accessory cover to charge the electronic pen using the selected at least one coil. 13. The method of claim 12,
The processor is
In response to the state of the accessory cover, an electronic device for controlling the switch unit of the accessory cover to select at least one coil from among a plurality of coils disposed on the accessory cover. In the method,
detecting the attachment of the accessory cover in the electronic device;
checking the state of the accessory cover;
checking whether the electronic pen is attached to the accessory cover;
selecting at least one coil from among a plurality of coils included in a charging coil disposed on the accessory cover based on a state of the accessory cover when the electronic pen is attached to the accessory cover; and
charging the electronic pen using the selected at least one coil; How to include. 15. The method of claim 14,
The operation of checking the state of the accessory cover is,
checking one of an open state and a closed state of the accessory cover, based on a magnetic force member disposed on the accessory cover, corresponding to the Hall sensor and the Hall sensor disposed in the electronic device; How to include. 15. The method of claim 14,
The charging coil includes a first charging coil for receiving wireless power from the electronic device, and a second charging coil for supplying the wireless power to the electronic pen,
The first charging coil and the second charging coil are electrically connected. 17. The method of claim 16,
The operation of detecting the attachment of the accessory cover is,
detecting whether the accessory cover is mounted on the electronic device based on the coil member disposed on the electronic device and the first charging coil disposed on the accessory cover; How to include. 17. The method of claim 16,
The second charging coil comprises a first coil, a second coil, and/or a third coil,
The operation of selecting the at least one coil comprises:
selecting the second coil when the accessory cover is in an open state; and
selecting the first coil and the third coil when the accessory cover is in a closed state; How to include. 15. The method of claim 14,
disposing the electronic device at least partially on an external electronic device while the electronic device is mounted on the accessory cover;
receiving wireless power from the external electronic device; and
charging a battery of the electronic device using the wireless power; How to include more. 20. The method of claim 19,
supplying charging power to the charging coil of the accessory cover while charging the battery using the wireless power supplied from the external electronic device; and
charging the electronic pen using the supplied charging power; How to include more.

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