KR20220048379A - Electronic device comprising batteries and method for controlling charging of batteries thereof - Google Patents

Abstract

In accordance with various embodiments of the present disclosure, an electronic device includes: a first electronic device; and a second electronic device including a second battery and a second terminal electrically connected with the second battery. The first electronic device includes: a first battery; a first terminal electrically connected with the first battery; a first switch switching the first battery and the first terminal; and a first processor. The first processor can electrically connect the first and second batteries by controlling the first switch based on a situation in which the first and second electronic devices are electrically connected through the first and second terminals. Therefore, the present invention is capable of extending the operation time and lifespan of acoustic equipment by balancing batteries.

Description

ELECTRONIC DEVICE COMPRISING BATTERIES AND METHOD FOR CONTROLLING CHARGING OF BATTERIES THEREOF

This document relates to an electronic device, for example, to an electronic device including a plurality of audio electronic devices and mutually controlling a charging amount between the audio electronic devices.

Recently, various audio electronic devices (eg, wireless earphones, wireless headphones, etc.) use wireless communication (eg, Bluetooth) to provide a portable communication device (eg, a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, It may be wirelessly connected to an electronic device, such as a wearable device or a home appliance, to output audio data of the connected electronic device.

A true wireless stereo (TWS) device (eg, TWS earphone) is an audio electronic device that operates as a stereo, and a plurality of audio electronic devices (eg, left/right earbuds) that output each sound constituting one stereo sound are wireless It is a technology that operates in stereo through a wireless connection between audio and electronic devices in a state of being separated from each other.

In order to implement TWS, the audio electronic device may perform wireless communication connection between a plurality of audio electronic devices and an electronic device that transmits sound source information. Also, since the plurality of audio electronic devices operate by pairing them separately from each other, each audio electronic device may include an independent battery. In this case, the amount of remaining charge of each battery may be different according to the usage method and the surrounding environment, and the battery consumption amount may be different according to the master-slave relationship. Accordingly, the user's stereo listening time may be shortened due to the audio electronic device that has consumed the charging amount first. The wireless audio electronic device can be charged using a separate charging device or a portable charging cradle device, but when the charging device is absent or the battery charge of the charging cradle device is insufficient, the You need to control the amount of filling. Cell balancing (cell balancing) that reduces the mismatch of remaining battery power between each battery in order to prevent the stereo output time from being shortened due to the shortening of the pairing operation execution time due to the imbalance between the batteries and to reduce side effects such as battery life, overvoltage, and overdischarge -balancing) may be required.

An electronic device according to various embodiments disclosed herein may include a first electronic device and a second electronic device including a second battery and a second terminal electrically connected to the second battery, wherein the first electronic device The apparatus includes: a first battery, a first terminal electrically connected to the first battery, a first switch for switching between the first battery and the first terminal; and a first processor, wherein the first processor is configured to, based on confirming that the first electronic device and the second electronic device are electrically connected through a first terminal and a second terminal, the first switch may be controlled to electrically connect the first battery and the second battery.

In a method for controlling a battery charge level of an electronic device according to various embodiments disclosed herein, the electronic device includes a first electronic device and a second electronic device, and the method includes the first electronic device and the second electronic device 2 Confirming that the electronic device is electrically connected through an external connection device, and controlling the first switch based on the confirmation of the electrical connection to electrically connect the first battery and the second battery can

An electronic device according to various embodiments disclosed herein includes a communication module, a display, and a processor operatively connected to the communication module and the display, wherein the processor wirelessly communicates with the electronic device through the communication module Receive information on the charge level of the first electronic device and information on the charge level of the second electronic device from an external electronic device including a first electronic device and a second electronic device connected to the communication module, Calculating a difference between the charging level of the first electronic device and the charging level of the second electronic device, and confirming that the difference between the charging level of the first electronic device and the charging level of the second electronic device is equal to or greater than a first threshold Based on this, the first processor may control to transmit a power supply message for controlling to electrically connect the first battery and the second battery to the external electronic device.

An electronic device according to various embodiments disclosed herein includes a first battery, a first terminal electrically connected to the first battery, and a first switch for connecting or disconnecting an electrical path between the first battery and the first terminal and a first processor, wherein the first processor confirms that an external electronic device including a second battery is electrically connected to a first terminal, and based on confirming the connection, the first battery and the second battery The first switch may be controlled to electrically connect the battery.

An electronic device according to various embodiments disclosed herein includes a first terminal for electrically connecting to a first external electronic device, electrically connected to the first terminal through an electrical path with the first terminal, and a second external A second terminal for electrical connection to an electronic device, a switch for switching an electrical path connected to the first terminal and an electrical path connected to the second terminal, and a processor, wherein the processor includes: the first terminal and a first external electronic device The switch may be checked to check a connection between the two terminals and a connection between the second terminal and the second external electronic device, and to electrically connect the first terminal and the second terminal based on the connection check.

According to various embodiments, there is provided a method for maintaining the remaining charge amount of each battery of a plurality of audio electronic devices (eg, each earbuds) at the same level to extend the time for a user to listen to sound in stereo. can For example, by suggesting a method of balancing the battery charge of both earbuds of a wireless earphone so that the battery charge is maintained the same or similar, it is possible to increase the duration of listening to a stereo sound source. As another example, the use time and lifespan of the sound device may be extended by balancing the batteries included in each of a plurality of audio electronic devices that are paired and operated in the same audio electronic device.

1 is a block diagram of an electronic device in a network environment according to various embodiments of the present disclosure;
2 is an example illustrating a communication method and an operation method of an audio electronic device according to various embodiments of the present disclosure;
3 is an example for explaining control of a battery charge amount of an audio electronic device according to various embodiments of the present disclosure;
4 is a block diagram of an audio electronic device according to various embodiments of the present disclosure;
5 is a circuit diagram of an audio electronic device according to various embodiments of the present disclosure;
6A, 6B, and 6C are flowcharts of a method of controlling battery charging according to various embodiments of the present disclosure;
7 is an example of balancing control using an external electronic device according to various embodiments of the present disclosure.
8 is a circuit diagram of an audio electronic device and an external electronic device according to various embodiments of the present disclosure;
9 is a flowchart of a balancing method when a charging module is present according to various embodiments of the present disclosure;
10A and 10B are flowcharts of a balancing method when an external electronic device controls balancing according to various embodiments of the present disclosure;

1 is a block diagram of an electronic device 101 in a network environment 100 according to various embodiments. Referring to FIG. 1 , in a network environment 100 , the electronic device 101 communicates with the electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or a second network 199 . It may communicate with the electronic device 104 or the server 108 through (eg, a long-distance wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 through the server 108 . According to an embodiment, the electronic device 101 includes a processor 120 , a memory 130 , an input 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, the program 140) to execute at least one other component (eg, 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) 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 one 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). there is. 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 artificial intelligence 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 of the electronic device 101 (eg, the processor 120 or the sensor module 176 ). 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 may be used to receive an incoming call. 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 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 ) directly or wirelessly connected to the electronic device 101 . Sound may be output through the electronic device 102 (eg, a speaker or headphones).

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 one 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 includes various technologies for securing performance in a high frequency band, for example, beamforming, massive multiple-input and multiple-output (MIMO), all-dimensional multiplexing. Technologies such as full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna may be supported. The wireless communication module 192 may support various requirements specified 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 ( 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 chosen. A signal or power may be transmitted or received between the communication module 190 and an external electronic device through the selected at least one antenna. According to some embodiments, other components (eg, 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 is 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, 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. 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.

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

The various embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, 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 may include any one of, or all possible combinations of, items listed together in the corresponding one of the phrases. Terms such as "first", "second", or "first" or "second" may be used simply 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).

According to various embodiments of the present document, 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 command among one or more commands stored from a storage medium and execute it. This makes it possible for the device to be operated to perform at least one function according to the 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 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™) or on two user devices ( It can be distributed online (eg download or upload), directly between smartphones (eg smartphones). In the case of online distribution, at least a part of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium such as a memory of a server of a manufacturer, a server of an application store, or a relay server.

According to various embodiments, each component (eg, module or 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. there is. 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.

2 illustrates an example of a communication method and an operation method of the audio electronic device 200 according to various embodiments of the present disclosure.

The audio electronic device 200 may be connected to the external electronic device 300 that provides a signal including sound information through short-range wireless communication (eg, Bluetooth or wireless fidelity (WiFi)). According to various embodiments, the audio electronic device 200 may be a device that receives an audio signal of audio data reproduced in an external device and outputs the received audio signal through a speaker or the like. According to various embodiments, the audio electronic device 200 may be connected to an external device in a Bluetooth (bluetooth or bluetooth low energy) method. The audio electronic device 200 may be a device that outputs sound. For example, it may be one of audio electronic devices including wireless earphones and wired headphones. According to various embodiments, the audio electronic device 200 may include a plurality of audio electronic devices for implementing stereo sound. According to various embodiments, a plurality of audio electronic devices may be separated from each other and simultaneously output the same or different sounds in different directions to realize stereo sound. According to various embodiments, the first audio electronic device 210 and the second audio electronic device 220 are divided into the first audio electronic device 210 on the left and the second audio electronic device 220 on the right to provide a total of two. It can be configured, but the number is not limited.

The audio electronic device 200 may include a plurality of audio electronic devices, for example, a first audio electronic device 210 and a second audio electronic device 220 . The first audio electronic device 210 and the second audio electronic device 200 may include a battery and a power management module for charging the battery.

The first audio electronic device 210 and the second audio electronic device 220 included in the audio electronic device 200 may be connected to each other through short-range wireless communication and may perform an integrated operation. For example, the first audio electronic device 210 and the second audio electronic device 220 may output stereo audio by making left and right audio outputs different from each other as an integrated operation. The first audio electronic device 210 and the second audio electronic device 220 may be connected to each other through short-range wireless communication. According to various embodiments, the first audio electronic device 210 and the second audio electronic device 220 may transmit or receive information by performing mutual wireless communication. For example, when outputting a stereo audio signal through wireless communication, the audio electronic device 200 may adjust a sound sync between the first audio electronic device 210 and the second audio electronic device 220 . According to various embodiments, the first audio electronic device 210 and the second audio electronic device 220 may transmit or receive information including mutual battery charge amount information, sound information, and communication state information. When the first audio electronic device 210 and the second audio electronic device 220 are connected through wireless communication, one may operate as a master and the other may operate as a slave. According to various embodiments, a device operating as a master may control an operation of its slave through wireless communication. According to various embodiments, the master may receive information of the slave from the slave and transmit a signal for controlling the operation of the slave to the slave. According to various embodiments, the slave may transmit information of the slave to the master and operate according to a control signal of the master.

According to various embodiments, the audio electronic device 200 may establish a first communication link with the external electronic device 300 . For example, in the audio electronic device 200 , the first audio electronic device 210 may establish a first communication link with the external electronic device 300 . According to various embodiments, the first audio electronic device 210 and the second audio electronic device 220 may establish a second communication link. According to various embodiments, the first communication link and the second communication link may be communication links using short-range wireless communication. Each electronic device (eg, an audio electronic device, an external electronic device) may transmit/receive mutual information and/or signals through a communication link.

According to various embodiments of the present disclosure, the first audio electronic device 210 operating as a master transmits audio data received from the external electronic device 300 or audio data received from the external electronic device 300 to the second audio electronic device 220 operating as a slave. Parameter information for obtaining an audio signal may be transmitted.

The device providing a signal including sound information may be an external electronic device 300 wirelessly connected to the audio electronic device 200 . According to various embodiments, the external electronic device 300 includes, for example, various mobile devices (eg, smartphones, tablet PCs, laptop PCs, or wearable devices) or various electronic devices capable of generating audio signals (eg: TV, car audio, audio system, desktop PC, CD player, Blu-ray player, MP3 player, camera).

When the audio electronic device 200 communicates with the external electronic device 300 , it may be divided into a master and a slave in relation to the external electronic device 300 . For example, the audio electronic device 200 may become a slave of the external electronic device 300 , and the external electronic device 300 may become a master. According to various embodiments, the master may control the operation of the slave. The master may receive information related to the slave from the slave, and may transmit information controlling the slave to the slave. According to various embodiments, the audio electronic device 200 may operate as a slave to the external electronic device 300 , and the external electronic device 300 may operate as a master.

According to various embodiments, when the first audio electronic device 210 and the second audio electronic device 220 perform mutual wireless communication, a specific audio electronic device may operate as a master of the other audio electronic devices, and the other audio electronic device may operate as a master. The audio electronic device may operate as a slave of a specific audio electronic device corresponding to the master. According to various embodiments, the first audio electronic device 210 may operate as a master, and the second audio electronic device 220 may operate as a slave. For example, the first audio electronic device 210 may transmit information for audio streaming to the second audio electronic device 220 corresponding to the slave. In the present disclosure, for convenience, the first audio electronic device 210 is described as a master and the second audio electronic device 220 is described as a slave, but the present disclosure is not limited thereto. According to various embodiments, a master and a slave among a plurality of respective audio electronic devices may be switched. For example, while the first audio electronic device 210 operates as a master and the second audio electronic device 220 operates as a slave, the second audio electronic device 220 becomes the master and the first audio electronic device 210 can be converted to a slave. According to various embodiments, a master and a slave among the plurality of audio electronic devices may be determined by the external electronic device 300 .

When the audio electronic device 200 performs wireless communication with the external electronic device 300 , the first audio electronic device 210 serving as a master in the audio electronic device 200 mainly communicates with the external electronic device 300 . can be performed. According to various embodiments, the first audio electronic device 210 may receive a signal including both left and right audio information from the external electronic device 300 . The first audio electronic device 210 may transmit a signal including audio information to be output from the right side to the second audio electronic device 220 . According to various embodiments, the first audio electronic device 210 performing the master role performs both wireless communication with the external electronic device 300 and the second audio electronic device 220 performing the slave role, and the second The audio electronic device 220 may perform wireless communication only with the first audio electronic device 210 . According to various embodiments, the first audio electronic device 210 may consume a relatively large amount of power compared to the second audio electronic device 220 .

3 is an example for explaining control of a battery charge amount of the audio electronic device 200 according to various embodiments of the present disclosure.

According to the use of the audio electronic device 200, the charge amount of the first audio electronic device 210a before balancing may be relatively lower than the charge amount of the second audio electronic device 220a before balancing. For example, the first audio electronic device 210 and the second audio electronic device 220 having the same charge amount are 60% before balancing, and the second audio electronic device before balancing, depending on usage. 220a may have a remaining charge of 90%. According to various embodiments, balancing may be performed between the battery of the first audio electronic device 210a and the battery of the second audio electronic device 220a. According to various embodiments, the first audio electronic device 210b and the second audio electronic device 220b after balancing may obtain substantially the same charge amount level after the balancing operation. According to various embodiments, balancing may be performed by exchanging charged energy between batteries of each audio electronic device 210 and 220 . According to various embodiments, the balancing limits the charging rate of the audio electronic device having a larger amount of charge among the first audio electronic device 210 and the second audio electronic device 220 when the respective audio electronic devices 210 and 220 are charged. can be performed in this way.

Balancing among the plurality of audio electronic devices 210 and 220 may be performed by supplying power (voltage or current) from an audio electronic device having a larger charge to another audio electronic device. According to various embodiments, power may be transferred from the second audio electronic device 220a having a high charge level to the first audio electronic device 210a. According to various embodiments, each of the audio electronic devices 210 and 220 may be electrically connected to perform balancing. According to various embodiments, a connection device that mediates electrical connection between the first audio electronic device 210 and the second audio electronic device 220 may be included. According to various embodiments, the connection device may be the charging cradle device 400 . For example, the cradle device 400 is electrically connected to the connection terminal 230 of the first audio electronic device 210 and the second audio electronic device 220, respectively, so that each of the plurality of audio electronic devices 210 and 220 is electrically connected to each other. ) can provide an electrical connection between According to various embodiments, the cradle device 400 may be in the form of a cable 400A providing a wired connection between the first audio electronic device 210 and the second audio electronic device 220, and the cradle device in the form of a cable ( 400A) may be electrically connected to each audio electronic device. Each audio electronic device 210 and 220 may be electrically connected to each other through electrical connection with the cradle device 400A, and a battery and a ground of each audio electronic device may be electrically connected to each other. According to various embodiments, the cradle device 400 may be in the form of a case 400B. For example, in the case-type cradle device 400B, each audio electronic device 210 , 220 may be seated in the cradle device and connected to a terminal of the cradle device to form an electrical connection with each audio electronic device. Each audio electronic device 210 and 220 may be electrically connected to each other through electrical connection with the cradle device 400B, and for example, a battery and a ground of each audio electronic device may be electrically connected to each other. According to various embodiments, the case-type cradle device 400B may include a separate battery (eg, a third battery), and in this case, the cradle device 400B is electrically connected to each audio electronic device 210 and 220 . The batteries of 400B) may together form an electrical connection. According to various embodiments, the cradle device 400 may separately include a circuit for providing an electrical connection between the plurality of audio electronic devices 210 and 220 . According to various embodiments, the cradle device 400 may form a separate connection with each of the first audio electronic device 210 and the second audio electronic device 220 . audio electronics audio electronics

According to various embodiments, the cradle device 400 may include a charging module (not shown) and a battery (not shown) that separately perform a charging role. According to various embodiments, the cradle device 400 separately performs electrical connection between the first audio electronic device 210 and the second audio electronic device 220, and separates each of the plurality of audio electronic devices 210 and 220 . ) to output a voltage to perform charging. In the present disclosure, it is assumed and described in the case of the charging cradle device 400 with respect to the connection device, but only the electrical connection of the first audio electronic device 210 and the second audio electronic device 220 that does not perform a charging role is provided. It is also possible to According to various embodiments, the cradle device 400 may be a device that provides only an electrical connection without a battery or a charging module.

4 is a block diagram of an audio electronic device 200 according to various embodiments.

The audio electronic device 200 includes a first audio electronic device 210 and a second audio electronic device 220 , and the first audio electronic device includes a first communication module 211 , a first battery 212 , and a second audio electronic device. One processor 214 , a first audio output unit 216 , and a first charging circuit 217 may be included. According to various embodiments, the first audio electronic device 210 may include a first sensor 213 and a first user input unit 215 . The second audio electronic device 220 may include at least some of the components of the first audio electronic device. Components of the audio electronic device 200 will be described with reference to the first audio electronic device 210 . The audio electronic device 200 may include at least some of the configuration and/or functions of the electronic device 101 of FIG. 1 .

The communication modules 211 and 221 may include a software and/or hardware module (eg, a communication processor (CP)) for wirelessly communicating with a network or an external device, and may include the wireless communication module 192 of FIG. 1 and an antenna. It may include at least some of the configuration and/or functionality of the module 197 . The communication modules 211 and 221 may communicate with an external device and the second audio electronic device 220 through a short-range communication network (eg, Bluetooth). According to various embodiments, the first communication module 211 transmits data provided from the first processor 214 to another external device (eg, the external electronic device 300 of FIG. 2 ) or the second audio electronic device 220 . ), or may receive data from an external device or the second audio electronic device 220 and provide it to the first processor. According to an embodiment, at least some of the configuration and/or functions of the software and/or hardware module of the communication module 211 or 221 may be included in the processor 211 or 214 .

The first battery 212 is a device for supplying power to at least one component of the audio electronic device 200 , and the first battery 212 includes at least one of the configurations and/or functions of the battery 189 of FIG. 1 . may include some. According to various embodiments, the first battery 212 may be a secondary battery capable of charging and discharging. According to various embodiments, the first battery 212 may include a plurality of battery cells, and in this case, a separate circuit for cell balancing among the plurality of battery cells may be included. In the present disclosure, it is assumed that the first audio electronic device 210 is a master and the second audio electronic device 220 is a slave, and the charge amount of the battery of the first battery 212 is lower than the charge amount of the second battery 222 . A state is assumed, but is not necessarily limited thereto. The relationship between the master and the slave and the remaining battery charge may vary depending on variables such as the usage method and the surrounding environment.

The first charging circuit 217 is a component for supplying power to the first battery, and the first charging circuit 217 may include at least some of the configuration and/or functions of the power management module 188 of FIG. 1 . can According to various embodiments, the first charging circuit 217 may include a circuit for receiving charging power (eg, voltage and current) from the outside or outputting the power of the battery, and is safe for stably receiving power supply. It may include at least some of a circuit (eg, a current limiting circuit) and a switch. According to various embodiments, a connection device 400 capable of electrically connecting the first audio electronic device 210 and the second audio electronic device 220 may be further included.

The sensors 213 and 223 may detect the state of the audio electronic device 200 or the state of the external environment, and may generate an electrical signal or data value corresponding to the sensed state. According to various embodiments, the sensors 213 and 223 may include at least some of the configuration and/or functions of the sensor module 176 of FIG. 1 . According to various embodiments, the sensors 213 and 223 may include at least some of a voltage sensor, a current sensor, and a magnetic sensor. According to various embodiments, the first sensor 213 may be included in the first charging circuit 217 to operate as a component that detects whether an external power source is connected when the first audio electronic device 210 is charged. According to various embodiments, the first sensor 213 may include at least a portion of a voltage input from the outside of the first audio electronic device 210 , a current, and a charge amount of the first battery 212 and/or the second battery 222 . may be detected, and the sensed information may be provided to the first processor 214 .

The user input units 215 and 225 may receive a user's input, generate information or a signal according to the user's input, and provide it to the first processor. According to various embodiments, the user input units 215 and 225 may include a microphone for receiving a user's voice signal, and may also include a touchpad for receiving a user's touch input.]

The audio output units 216 and 226 may output a voice signal of the first audio electronic device 210 . The audio output units 216 and 226 may include speakers for outputting a voice signal. According to various embodiments, the audio output units 216 and 226 may output vibrations that may give a tactile effect.

The charging circuits 217 and 227 are devices for charging power to the batteries 212 and 222 of the respective audio electronic devices 210 and 220, and the charging circuits 217 and 227 are electrically connected to the outside to each audio electronic device. An electrical connection to the outside of the devices 210 , 220 may be formed. For example, the first charging circuit 217 may be connected to an external power source to configure a connection between the first audio electronic device 210 and an external power source. As another example, the first charging circuit 217 may be connected to the second charging circuit 218 to form an electrical connection between the first audio electronic device and the second audio electronic device. According to various embodiments, the first charging circuit 217 may include at least one protection circuit. According to various embodiments, the first charging circuit 217 may include the configuration of the first sensor 213 and may detect an electrical connection with an external power source and/or a second audio electronic device.

The first processor 214 may process data in the first audio electronic device 210 and control at least one other component related to charging the battery of the first audio electronic device 210 , and may be required for charging the battery. It can process data and perform calculations. According to various embodiments, the first processor 214 may include at least one control circuit (not shown) for controlling the first charging circuit 217 . The first processor 214 may include at least some of the functions and/or configurations of the processor 120 of FIG. 1 . The first processor 204 may be electrically and/or functionally connected to the components of the first audio electronic device 210 such as the first communication module 211 , the first charging circuit 217 , and the first sensor 213 . there is. According to various embodiments, there will be no limitations to the arithmetic and data processing functions that the processors 214 and 224 can implement in the audio electronic device 200 , but in the present specification, the first audio electronic device 210 of the audio electronic device 200 is not limited thereto. ) and a specific operation of the first processor 214 for controlling the amount of charge between the second audio electronic device 220 will be mainly described.

The first processor 214 may detect and determine whether an electrical connection is made between the first audio electronic device 210 and the second audio electronic device 220 . According to various embodiments, the first processor 214 receives information on detecting an electrical connection from the first sensor 213 , thereby providing an electrical connection between the first audio electronic device 210 and the second audio electronic device 220 . connection can be determined. According to various embodiments, the second processor 224 receives a signal for detecting an electrical connection from the second sensor 223 of the second audio electronic device 220 , and receives a second signal through the second communication module 221 . The processor 224 may transmit information about the electrical connection to the first processor 214 . According to various embodiments, the electrical connection between the first audio electronic device 210 and the second audio electronic device 220 includes each audio electronic device 210 including at least a first battery 212 and a second battery 222; 220) may be an electrical connection of the components. According to various embodiments, as an electrical connection, a current due to a voltage difference may flow, and an electrical signal or charge may move between the first audio electronic device 210 and the second audio electronic device 220 .

The first processor 214 may receive information on each of the audio electronic devices 210 and 220 . According to various embodiments, the first processor 214 may receive information including a charge amount of the first battery 212 and a charge amount of the second battery 222 . According to various embodiments, the first processor 214 may directly receive the charge amount information of the first battery 212 , and the charge amount information of the second battery 212 may be received from the second audio electronic device 220 . According to various embodiments, the first processor 214 may receive a battery charge amount of the charging cradle device 400 . According to various embodiments, the amount of charge may be a numerical value with respect to voltage. According to various embodiments, the amount of charge may be a value calculated using at least a portion of voltage, amount of charge, temperature, and humidity, and the first processor 214 includes the first battery 212 , the second battery 222 , or the third battery. (V- _BUS- in Fig. 10) It is possible to receive at least some information of voltage, amount of charge, temperature, and humidity, and calculate the amount of charge by using it.

The first processor 214 may compare the charge amounts of the first battery 212, the second battery 222, and the third battery V-- _BUS- for each charge amount, and compare each charge amount with a predetermined specific value. It is also possible to According to various embodiments, the first processor 214 may compare the charge amounts of the first battery 212 and the second battery 222 . According to various embodiments, the first processor 214 compares the charge amount value of the first battery 212, the second battery 222, or the third battery (V- _BUS ) with a threshold value, and determines whether it is above or below the threshold value. can determine whether According to various embodiments, the first processor 214 may calculate a difference in the amount of charge between the batteries. According to various embodiments, the first processor 214 may calculate a difference between the charge amount of the first battery 212 and the charge amount of the second battery 222 , and compare the calculated difference value with a specified threshold value to exceed the threshold value It can be determined whether or not

The first processor 214 may determine whether balancing between the first battery 212 and the second battery 222 is required. The first processor 214 determines whether balancing is required using the information of the first audio electronic device 210, the information of the second audio electronic device 220, and/or the information of the third battery (V- _BUS-- ). can decide According to various embodiments, the first processor 214 uses the information of the first battery 212, the second battery 222, and/or the third battery (V- _BUS- ) to determine whether balancing is required as a result of the operation can be decided According to various embodiments, the first processor 214 provides information on whether the first audio electronic device 210 and the second audio electronic device 220 are electrically connected to each other, the first battery 212 and the second battery ( Information on whether the charge amount difference of 222 exceeds a first predetermined threshold value, information on whether the charge amount of the first battery 212 or the second battery 222 is less than or equal to a predetermined second threshold value, and the third battery It is possible to determine whether balancing is necessary using at least one of information about whether the charge amount of (V- _BUS- ) is less than or equal to a predetermined threshold, and it is also possible to determine whether balancing is necessary according to a signal from an external electronic device.

When it is determined that balancing between the first audio electronic device 210 and the second audio electronic device 220 is necessary, the first processor 214 may perform balancing. According to various embodiments, the balancing is performed so that the charging amounts of the first battery 212 and the second battery 222 are substantially the same or the difference between the charging amounts of the first battery 212 and the second battery 222 is below a certain level. It may be an operation to control. According to various embodiments, balancing may be performed by supplying power from the second battery 222 to the first battery 212 . According to various embodiments, the first processor 214 turns on the electrical connection between the first battery 212 and the second battery 222 and the switch connected between the first battery 212 and the second battery 222 is turned on. - It can be controlled to be on. According to various embodiments, the first processor 214 may control one or more switches existing on a circuit connecting the first battery 212 and the second battery 222 . According to various embodiments, the first processor 214 transmits a signal for controlling the switch to be turned on to the second processor 224 , and the second processor 220 receiving the switch control signal controls the switch to control the voltage output.

The first processor 214 may stop balancing when balancing is completed. According to various embodiments, when determining that balancing is complete, the first processor 214 may cut off the voltage output of the second battery 222 to the first battery 212 . According to various embodiments, the first processor 214 may control the switch connected between the first battery 212 and the second battery 222 to be turned off by directly or by transmitting a signal to the second processor 224 . there is. The first processor 214 may determine the balancing completion as a result of comparing the charge amount of the first battery 212 and the charge amount of the second battery 222 . According to various embodiments, the first processor 214 may determine that the balancing has been completed when the difference in the charge amounts of the first battery 212 and the second battery 222 is less than or equal to a predetermined level. According to various embodiments, the first processor 214 may determine whether balancing is complete by receiving a balancing complete message from an external electronic device. According to various embodiments, the first processor 214 may stop balancing when there is a disconnection between the user's first audio electronic device 210 and the second audio electronic device 220 .

5 illustrates a circuit 500 of an audio electronic device 200 according to various embodiments.

Referring to FIG. 5 , the first audio electronic device 210 and the second audio electronic device 220 may be electrically connected to each other. According to various embodiments, the first audio electronic device 210 and the second audio electronic device 220 may be electrically connected to each other through the cradle device 400 . As described above, the cradle device 400 may provide only an electrical connection between the first audio electronic device 210 and the second audio electronic device 220 , but using the battery of the cradle device 400 , the first It is also possible to charge the audio electronic device 210 and the second audio electronic device 220 .

The circuit 500 of the audio electronic device may include at least one switch 511 and 521 for switching between the first battery 212 and the second battery 222 . According to various embodiments, the switches 511 and 521 may include at least some of the configuration and/or functions of a charging circuit (eg, the first charging circuit 217 and the second charging circuit 227 of FIG. 4 ) of the audio electronic device. may include According to various embodiments, the switches 511 and 521 may be divided into a first switch 511 included in the first audio electronic device 210 and a second switch 521 included in the second audio electronic device 220 . can The first switch 511 and the second switch 521 may be turned on or switched off under the control of the processors 214 and 224 of the respective audio electronic devices 210 and 220 . According to various embodiments, the first switch 511 and the second switch 521 may be configured to control the electrical connection/blocking between the first battery 212 and the second battery 222 . For example, by controlling the switching state of the first switch 212 and/or the second switch 222 , the first battery 212 and the second battery 222 may be electrically connected, and an electrical connection is formed. In this case, a current may flow due to a voltage difference between the first battery 212 and the second battery 222 . The direction of the current may depend on the voltage difference, and the direction of the current due to the voltage difference will not be limited, but in the present disclosure, power supply from the first battery 212 to the second battery 222 will be mainly described. .

The circuit 500 of the audio electronic device may include at least one protection circuit 512 and 522 between the first battery 212 and the second battery 222 . The protection circuits 512 and 522 may be circuits that prevent overcharging and overdischarging. According to various embodiments, the protection circuits 512 and 522 may operate according to an internal circuit and surrounding environment including at least one of temperature, voltage, and current. According to various embodiments, the protection circuits 512 and 522 may be turned off or opened when operating according to the inside of the circuit or the surrounding environment, thereby blocking the electrical connection formed between the first battery 212 and the second battery 222. there is. According to various embodiments, when a voltage is output from the second battery 222 to the first battery 212 , the processors 214 and 224 cause the first battery 212 or the second battery 222 to be in an overvoltage state and an overcurrent state. The voltage output may be cut off by detecting at least one of the state and the overdischarge state and controlling the protection circuits 512 and 522 .

The circuit 500 of the audio electronic device may include sensors 213 and 223 . As described above, the sensors 213 and 223 may detect the state of the audio electronic device 200 or the state of the external environment, and may generate an electric signal or data value corresponding to the sensed state. According to various embodiments, the sensors 213 and 223 may include at least some of a voltage sensor, a current sensor, and a magnetic sensor. According to various embodiments, the sensors 213 and 223 detect at least a portion of a voltage input from the outside of the audio electronic device 200 , a current, and a battery charge amount of the first battery 212 and the second battery 222 , , the sensed information may be provided to the first processor 214 or the second processor 224 .

6 is a flowchart of a balancing method according to various embodiments.

In the present disclosure, the operation of the first processor 214 is described for convenience, but the present disclosure is not limited thereto. According to various embodiments, the flowchart of FIG. 6 may be performed as an operation of the second processor 224 , or may be performed as an interaction between the first processor 214 and the second processor 224 .

In operation 601 of FIG. 6 , the first processor 214 may check and compare the respective battery charge amounts of the first audio electronic device 210 and the second audio electronic device 220 . According to various embodiments, the first processor 214 receives the charge amount information of the first battery 212 and the charge amount information of the second battery 222, checks the charge amount information, and the first battery 212 and the second battery ( 222) can be compared. According to various embodiments, the first processor 214 may receive the charge amount information of the second battery 222 from the second processor 224 .

In operation 602 , the first processor 214 may determine whether balancing is necessary as a result of comparing the charge amount of the first battery 212 and the charge amount of the second battery 222 . According to various embodiments, when the charge amount of the first battery 212 and the charge amount 222 of the second battery are the same, the first processor 214 may return to operation 601 without performing balancing. According to various embodiments, the first processor 214 may determine a battery having a larger amount of charge by comparing the charge amount of the first battery 212 and the charge amount of the second battery 222 . When there is a difference between the charge amount of the first battery 212 and the charge amount of the second battery 222 , the first processor 214 may perform balancing.

When the charge amount of the first battery 212 is less than the charge amount of the second battery 222 , the first processor 214 may proceed to operation 603 . In operation 603 , the first processor 214 may balance the first battery 212 and the second battery 222 . According to various embodiments, the first processor 214 may control the power of the second battery 222 to be supplied to the first battery 212 . According to various embodiments, the power supply may be performed from a relatively high voltage battery to a low voltage battery. According to various embodiments, the supply of power may be performed by turning on the switches 511 and 521 connected between the first battery 212 and the second battery 222 on the circuit 500 of the audio electronic device. According to various embodiments, the first processor 214 may supply power from the second battery 222 to the first battery 212 by controlling the switches 511 and 521 to be turned on. According to various embodiments, the first processor 214 may directly control the switch 511 in the first audio electronic device 210 and the switch 521 in the second audio electronic device 220 to be turned on. . According to various embodiments, the first processor 214 may send a signal to the second processor 224 to control the switch 521 in the second audio electronic device 220, and receive the signal for controlling the switch. The second processor 224 may control the switch 521 in the second audio electronic device 220 .

In operation 604, the first processor 214 may determine whether balancing is complete. According to various embodiments, the first processor 214 may determine whether balancing is complete as a result of comparing the charge amount of the first battery 212 and the charge amount of the second battery 222 . According to various embodiments, the first processor 214 may determine that balancing is complete when the difference in the charge amounts of the first battery 212 and the second battery 222 is less than or equal to a predetermined level. According to various embodiments, when receiving a balancing completion message from the external electronic device, the first processor 214 may determine that balancing is complete. If it is determined that the balancing has not yet been completed, the first processor 214 may return to operation 603 again.

In operation 605, the first processor 214 may stop balancing when it is determined that balancing is complete. According to various embodiments, the first processor 214 may determine whether balancing is complete in operation 604 , and when it is determined that the balancing is complete, cut off the power supply of the second battery 222 to the first battery 212 . The power supply cutoff may be, for example, blocking the electrical connection between the first battery 212 and the second battery 222 by controlling the first switch 511 and/or the second switch 521 . According to various embodiments, the first processor 214 transmits a signal directly and/or to the second processor 224 so that the switches 511 and 521 connected between the first battery 212 and the second battery 222 are activated. It can be controlled to be turned off.

In operation 602 , when the amount of charge of the first battery 212 is greater than that of the second battery 222 , the first processor 214 may proceed to operation 613 . In operation 613 , the first processor 214 balances the first battery 212 and the second battery 222 . According to various embodiments, the first processor 214 may control the power of the first battery 212 to be supplied to the first battery 222 . According to various embodiments, the supply of power may be performed by turning on the switches 511 and 521 connected between the first battery 212 and the second battery 222 on the circuit 500 of the audio electronic device. According to various embodiments, the first processor 214 may supply power from the first battery 212 to the second battery 222 by controlling the switches 511 and 521 to be turned on. According to various embodiments, the first processor 214 may directly control the switch 511 in the first audio electronic device 210 and the switch 521 in the second audio electronic device 220 to be turned on. . According to various embodiments, the first processor 214 may send a signal to the second processor 224 to control the switch 521 in the second audio electronic device 220, and receive the signal for controlling the switch. The second processor 224 may control the switch 521 in the second audio electronic device 220 .

In operation 614 , the first processor 214 may determine whether balancing is complete, which may correspond to the above description in operation 604 . According to various embodiments, the first processor 214 may determine whether balancing is complete as a result of comparing the charge amount of the first battery 212 and the charge amount of the second battery 222 . According to various embodiments, the first processor 214 may determine that balancing is complete when the difference in the charge amounts of the first battery 212 and the second battery 222 is less than or equal to a predetermined level. According to various embodiments, when receiving a balancing completion message from the external electronic device, the first processor 214 may determine that balancing is complete. If it is determined that the balancing has not yet been completed, the first processor 214 may return to operation 613 again.

In operation 605, the first processor 214 may stop balancing when it is determined that balancing is complete. According to various embodiments, the first processor 214 may determine whether balancing is complete in operation 614 , and when it is determined that the balancing is complete, may block the voltage output of the first battery 212 to the second battery 222 . According to various embodiments, the first processor 214 transmits a signal directly and/or to the second processor 224 so that the switches 511 and 521 connected between the first battery 212 and the second battery 222 are activated. It can be controlled to be turned off.

6 has been mainly described with respect to the operation of the first processor 214 , but it is not limited thereto and may be performed by the operation of the second processor 224 . Each operation of the first processor 214 described above in FIG. 6 may be an operation performed by the second processor 224 . According to various embodiments, each operation of the first processor described above in FIG. 6 may be performed by a combination of each operation of the first processor 214 and the second processor 224 .

7 is a flowchart of a balancing method according to various embodiments.

According to FIG. 7 , the first processor 214 determines whether the first audio electronic device 210 and the second audio electronic device 220 are electrically connected, and the threshold value of the difference in the charging amount of each audio electronic device 210 and 220 is determined. It is determined whether balancing is necessary through comparison and comparison between the charge amount of the first battery 212 and a threshold value, and balancing between the first audio electronic device 210 and the second audio electronic device 220 can be performed. .

In operation 701 , the first processor 214 detects an electrical connection between the first audio electronic device 210 and the second audio output device 220 . According to various embodiments of the present disclosure, the first processor 214 is configured to receive a second processor through the first sensor 213 included in the first audio electronic device 210 or the second sensor 223 included in the second audio electronic device 220 . Electrical connection between the first audio electronic device 210 and the second audio electronic device 220 may be detected. According to various embodiments, the charging circuits 217 and 227 may include the sensors 213 and 223 , and the sensors 213 and 223 include the first charging circuit 217 and the second charging circuit 227 with each other. By detecting the connection, an electrical connection between the first audio electronic device 210 and the second audio electronic device 220 may be detected.

In operation 702, the first processor 214 may check the amount of charge. According to various embodiments, the first processor may receive and check the charge amount information of the first battery 212 and the charge amount information of the second battery 222 . According to various embodiments, the first processor 214 may check the respective charge amounts of the first battery 212 and the second battery 222 and compare the charge amounts with each other. According to various embodiments, the first processor 214 may compare the charge amount of the first battery 212 and the charge amount of the second battery 222 and calculate the difference in the charge amount of each battery 212 and 222 .

In operation 703 , the first processor 214 may compare the difference between the charge amount of the first battery 212 and the charge amount of the second battery 222 with a preset threshold value. According to various embodiments, the preset threshold value may be a first threshold value. According to various embodiments, the first threshold value may be calculated using at least one or a combination of a voltage value and/or an amount of charge related to the amount of charge. According to various embodiments, the first processor 214 may determine whether balancing between the first battery 212 and the second battery 222 is necessary by comparing the difference in the charge amount with the first threshold value. According to various embodiments, the first processor 214 compares the difference between the charge amount of the first battery 212 and the charge amount of the second battery 222 with the first threshold value, and if it is greater than the first threshold value, proceed to operation 704. In addition, when the difference in the amount of charge is less than or equal to the first threshold value, operation 701 may be returned again.

In operation 704 , the first processor 214 may determine whether the amount of charge of the first battery 212 is smaller than a preset threshold value. According to various embodiments, the threshold value compared with the charge amount of the first battery 212 may be the second threshold value. According to various embodiments, the second threshold value may be calculated using at least one or a combination of a voltage value and an amount of charge in the same dimension as the amount of charge. According to various embodiments, the first processor 214 determines whether balancing between the first battery 212 and the second battery 222 is necessary by comparing the charge amount of the first battery 212 with the second threshold value. can do. According to various embodiments, when the charge amount of the first battery 212 is greater than the second threshold value, the first processor 214 may determine that the remaining charge amount is sufficient, and balancing may not be performed. According to various embodiments, when the charge amount of the first battery 212 is greater than or equal to the second threshold value, operation 701 may be returned again, and when the charge amount of the first battery 212 is less than the second threshold value, balancing is performed. can proceed. According to various embodiments, the first processor 214 may stop balancing when the charge amount of the second battery 222 is higher than a threshold value. For example, when the charge amount of the second battery 222 is less than the second threshold value, the first processor 214 may determine that the balancing is not sufficient to perform the balancing and stop the balancing.

In operation 705 , the first processor 214 may perform balancing between the first battery 212 and the second battery 222 . According to various embodiments, the first processor may control the power of the second battery 222 to be supplied to the first battery 212 . Balancing in operation 705 may be performed similarly to operation 603 described above. According to various embodiments, the voltage may be output by turning on the switches 511 and 521 connected between the first battery 212 and the second battery 222 on the circuit 500 of the audio electronic device. According to various embodiments, the first processor 214 may supply power from the second battery 222 to the first battery 212 by controlling the switches 511 and 521 to be turned on. According to various embodiments, the first processor 214 may directly control the switch 511 in the first audio electronic device 210 and the switch 521 in the second audio electronic device 220 to be turned on. . According to various embodiments, the first processor 214 may send a signal to the second processor 224 to control the switch 521 in the second audio electronic device 220, and receive the signal for controlling the switch. The second processor 224 may control the switch 521 in the second audio electronic device 220 .

In operation 706, the first processor 214 may determine whether balancing is complete. Operation 706 may be performed similarly to operation 604 or operation 614 described above. According to various embodiments, the first processor 214 may determine whether balancing is complete as a result of comparing the charge amount of the first battery 212 and the charge amount of the second battery 222 . According to various embodiments, the first processor 214 may determine that balancing is complete when the difference in the charge amounts of the first battery 212 and the second battery 222 is less than or equal to a predetermined level. According to various embodiments, the first processor 214 may check the charge amount of the first battery 212 again, and when the charge amount of the first battery 212 is equal to or greater than the second threshold value, it may be determined that the balancing is completed. According to various embodiments, the first processor 214 may determine that balancing is complete when the difference between the charge amount of the first battery 212 and the charge amount of the second battery 222 is less than or equal to a first threshold value. According to various embodiments, when receiving a balancing completion message from the external electronic device, the first processor 214 may determine that balancing is complete. If it is determined that the balancing has not yet been completed, the first processor 214 may return to operation 705 again.

The first processor 214 that determines that balancing is complete in operation 706 may stop balancing in operation 707 . According to various embodiments, the first processor 214 may determine whether balancing is complete in operation 706 , and when it is determined that the balancing is complete, block the voltage output of the second battery 222 to the first battery 212 . According to various embodiments, the first processor 214 transmits a signal directly and/or to the second processor 224 so that the switches 511 and 521 connected between the first battery 212 and the second battery 222 are activated. It can be controlled to be turned off.

Although each operation of FIG. 7 has been mainly described with respect to the operation of the first processor 214 , the operation of the second processor 224 is not limited thereto. Each operation of the first processor 214 described above in FIG. 7 may be an operation performed by the second processor 224 . According to various embodiments, each operation of the first processor described above in FIG. 7 may be performed by a combination of each operation of the first processor 214 and the second processor 224 .

8 is a block diagram illustrating components of an external electronic device 300 for controlling an audio electronic device.

Referring to FIG. 8 , the external electronic device 300 may include a communication module 310 , a display 320 , and a processor 330 . According to various embodiments, the external electronic device 300 may act as an external electronic device with respect to the audio electronic device 200 .

The external electronic device 300 may include a communication module 310 . According to various embodiments, the communication module 310 may include a software and/or hardware module (eg, a communication processor (CP)) for wirelessly communicating with a network or an external device, and the wireless communication module 192 of FIG. 1 . ) may include at least a portion of the configuration and/or function. The communication module 310 may communicate with the audio electronic device 200 and other external devices through a short-range communication network (eg, Bluetooth). According to various embodiments, the communication module 310 transmits data provided from the processor 330 to the audio electronic device 200 or other external device, or receives data from the external device or the audio electronic device 200 and transmits the data. It may be provided to the processor 330 . According to various embodiments, the communication module 310 may perform communication connection with at least one of the first audio electronic device 210 and the second audio electronic device 220 . According to various embodiments, the communication module 310 directly communicates with the master device among the first audio electronic device 210 and the second audio electronic device 220, and the communication connection with the remaining slave devices is the master. This can be done by controlling the device.

The external electronic device 300 may include a display 320 . According to various embodiments, the display 320 displays an image, a liquid crystal display (LCD), a light-emitting diode (LED) display, an organic light-emitting diode ( OLED)) display, micro electro mechanical systems (MEMS) display, and electronic paper (electronic paper) display may be implemented as any one of, but are not limited thereto. The display 320 may include at least some of the configuration and/or functions of the display device 160 of FIG. 1 . According to various embodiments, the display 320 may visually provide information to the outside (eg, a user) of the external electronic device 300 . The display 320 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the corresponding device. According to various embodiments, the display 320 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 external electronic device 300 may include a processor 330 . The processor 330 may process data within the external electronic device 300 , control at least one other component of the external electronic device 300 , and perform data processing and operations. The processor 330 may include at least some of functions and/or configurations of the processor 120 of FIG. 1 . The first processor 204 may be electrically and/or functionally connected to components of the external electronic device 300 such as the communication module 310 and the display 320 . According to various embodiments, there will be no limitations to the arithmetic and data processing functions that the processor 330 can implement in the external electronic device 300 , but in the present specification, the first audio electronic device 210 of the audio electronic device 200 . ) and a specific operation of the processor 330 for controlling the amount of charge between the second audio electronic device 220 will be mainly described.

The processor 330 may receive various types of information from the first audio electronic device 210 and the second audio electronic device 220 . According to various embodiments, the processor 330 may receive information on the amount of charge of each audio electronic device 210 and 220 and information on the state and environment of each audio electronic device 210 and 220, and perform necessary calculations through this. can be done According to various embodiments, the processor 330 may determine whether balancing between the first battery 212 and the second battery 222 is necessary. According to various embodiments, the processor 330 may compare the charge amount information of the first battery 212 and the second battery 222 with each other, perform an operation based on the charge amount information, and use the combined value of the charge amount information as a different value. can be compared with , or another operation can be performed. For example, the processor 330 may determine whether each of the audio electronic devices 210 and 220 is electrically connected to each other, information on the amount of charge of each of the audio electronic devices 210 and 220, the amount of charge and the first threshold or the second threshold. It can be determined whether balancing is necessary through the comparison of .

When it is determined that balancing between the first audio electronic device 210 and the second audio electronic device 220 is necessary, the processor 330 may control the balancing to be performed. According to various embodiments, the processor 330 may control the first audio electronic device 210 to perform balancing with the second audio electronic device 220 . According to various embodiments, when balancing is required, the processor 330 may transmit a balancing message to control the first audio electronic device 210 to supply power from the second battery 222 to the first battery 212 . . According to various embodiments, the first audio electronic device 210 may receive a balancing message from the processor 330 of the external electronic device 300 and perform balancing.

The processor 330 may output a user interface for balancing to the display 320 . According to various embodiments, the processor 330 may display a graphical user interface through the display 320 so that the user can select whether to perform balancing. An example of the graphical user interface will be described in more detail with reference to FIG. 9 .

The processor 330 may receive balancing state information between the first audio electronic device 210 and the second audio electronic device 220 . According to various embodiments, the processor 330 may receive balancing state information from the first audio electronic device 210 through the communication module 310 . The balancing state information may include at least one of a balancing progress rate, a charge amount of the first audio electronic device 210 , a charge amount of the second audio electronic device 220 , and whether balancing is complete. According to various embodiments, the processor 330 may display the balancing state information on the display 320 . According to various embodiments, the processor 330 may display the balancing state information on the display 320 using a graphical user interface.

The processor 330 may receive the balancing state information and determine whether balancing continues and whether balancing is complete. According to various embodiments, the processor 330 may determine whether balancing is complete using information on the amount of charge of the first audio electronic device 210 and the charge amount of the second audio electronic device 220 . According to various embodiments, when determining that the balancing is completed, the processor 330 may transmit a message terminating the balancing to the first audio electronic device 210 . According to various embodiments, the balancing end message may be a message for controlling to block the voltage output.

9 illustrates balancing control through the external electronic device 300 .

The external electronic device 300 may display the graphic user interfaces 901 and 902 on the display 320 . According to various embodiments, the external electronic device 300 may receive information including the charge amount of the audio electronic device 200 from the first audio electronic device 210 and display it on the display 320 . According to various embodiments, the graphic user interfaces 901 and 902 may display charge amount information of the first audio electronic device 210 and the second audio electronic device 220 . According to various embodiments, the graphic user interface 901 may include at least one of an input window asking whether to balance or not, and an icon. According to various embodiments, the processor 330 of the external electronic device 300 performs balancing when receiving an input for balancing progress from a user in the graphic user interface 901 . According to various embodiments, the balancing may be performed when the external electronic device 300 transmits a balancing message to the audio electronic device 200 . Upon receiving the balancing message, the audio electronic device 200 may perform balancing. The external electronic device 300 may receive balancing state information from the audio electronic device 200 while balancing is being performed. According to various embodiments, the external electronic device 300 may display at least a part of the received balancing state information on the graphic user interfaces 901 and 902 on the display 320 . When balancing is completed, the external electronic device 300 may display the balancing state information on the graphic user interfaces 901 and 902 . According to various embodiments, the graphic user interface 902 may include at least one of an input window and an icon for receiving a balancing stop input, and when a user's balancing stop input is received, the external electronic device 300 stops balancing The message may be transmitted to the audio electronic device 200 .

10 is a circuit 1000 when the charging cradle device 400 is connected.

The first audio electronic device 210 portion and the second audio electronic device 220 portion of the circuit 1000 to which the cradle device is connected may be similar to the circuit of FIG. 5 described above. Hereinafter, a circuit configuration not shown in the circuit 500 of FIG. 5 will be mainly described.

The circuit 1000 of FIG. 10 is a circuit when the cradle device 400 is connected to the first audio electronic device 210 and the second audio electronic device 220 . According to various embodiments, the cradle device 400 includes a connection switch 410 , a charging switch 420 , a charging module 430 , and a third battery 440 .

According to various embodiments, the cradle device 400 may separately include a communication module (not shown) to receive a control signal from the first processor 214 , the second processor 224 or the external electronic device 300 , or It may be electrically connected to the first processor 214 or the second processor 224 to be controlled by the audio electronic device 200 . According to various embodiments, the cradle device 400 may include a separate third processor 450 to control components in the cradle device 400 . According to various embodiments, the cradle device 400 may include an external power interface 460 , and receives external power from a travel adapter (TA) corresponding to an external power source using the external power interface 460 . , the third battery 440 may be charged.

Referring to the circuit 1000 of FIG. 10 , the cradle device 400 provides a connection between the first audio electronic device 210 and the second audio electronic device 220 , and a connection switch 410 capable of switching the connection switch 410 . ) is included. According to various embodiments, the first battery 212 and the second battery 222 may be electrically connected to each other through a circuit built in the cradle device 400 . The connection switch 410 is connected between the first battery 212 and the second battery 222 . According to various embodiments, the cradle device 400 may not include the connection switch 410 providing a connection between the first battery 212 and the second battery 222 . When the audio electronic device 200 is connected to the cradle device 400 , the connection switch 410 may operate in a turn-on or turn-off state under the control of the processor of the audio device 200 . According to various embodiments, the connection switch 410 may be controlled by the first processor 214 or the second processor 224 , the third processor 450 of the cradle device 400 , or the external electronic device 300 . . When the audio electronic device 200 is connected to the cradle device 400 and the connection switch 410 is turned on, an electrical connection between the first audio electronic device 210 and the second audio electronic device 220 is formed. Also, when the connection switch 410 is turned off, the electrical connection may be cut off.

Referring to the circuit 1000 of FIG. 10 , the cradle device 400 may include a charging module 430 and a third battery 440 . According to various embodiments, the cradle device 400 may perform a charging function of the audio electronic device 200 . When the cradle device 400 charges the audio electronic device 200, the connection switch 410 may be in a turned-off state, and the first audio electronic device 210 and the second audio electronic device 220 are each charged. may be controlled by itself or may be controlled through the audio electronic device 200 or the external electronic device 300 . Charging of the audio electronic device 200 in the cradle device 400 may be controlled through the charging switch 420 . According to various embodiments, one or more charging switches 420 may be connected between each of the first audio electronic device 210 and the second audio electronic device 220 and the charging module 430 . According to various embodiments, the first processor 210 , the second processor 220 , the external electronic device 300 , or the third processor 450 of the cradle device 400 is turned on or turned on by the charging switch 420 . - By controlling the off state, charging of each of the first audio electronic device 210 and the second audio electronic device 220 may be individually controlled.

The cradle device 400 may include a third battery 440 . The third battery 440 may supply power to the first battery 212 and/or the second battery 222 through the charging module 430 and the charging switch 420 . According to various embodiments, the third battery 440 may be a secondary battery capable of charging and discharging.

According to various embodiments, the processors 214 and 224 of the audio electronic device that control each switch 410, 420, 511, and 521 included in the circuit 1000 and the processor 450 of the cradle device are the external electronic devices ( 300) may receive a control signal. According to various embodiments, the external electronic device 300 controls the switches 511 and 521 included in the audio electronic device 200 to supply power between the first battery 212 and the second battery 222 or An electrical connection between the first battery 212 and the second battery 222 may be cut off. According to various embodiments of the present disclosure, the external electronic device 300 controls the connection switch 410 and the charging switch 420 between the cradle device 400 , the first audio electronic device 210 , and the second audio electronic device 220 . A connection state including a combination of each connection can be controlled.

11 is a flowchart of an embodiment of balancing the audio electronic device 200 when the cradle device 400 provides a charging function.

According to various embodiments, the control according to the flowchart of FIG. 11 may be any one of the first processor 214 , the second processor 224 , the third processor 450 of the cradle device 400 , and the processor 330 of the external electronic device. Although it is clear that it can be performed by the above, in the present disclosure, it is described that the first processor 214 controls the balancing process for convenience.

In operation 1101 , the first processor 214 may check the charge amount of the first battery 212 and the charge amount of the second battery 222 , and compare them. The operation of checking the charging amount may be similar to operation 601 of FIG. 6 and operation 702 of FIG. 7 described above. In operation 1102 , the first processor 214 compares the difference in the charge amounts of the first battery 212 and the second battery 214 with a first threshold value. Operation 1102 may be similar to operation 703 of FIG. 7 described above. According to various embodiments, the first processor 214 may determine that balancing between the first battery 212 and the second battery 222 is necessary when the difference in the charge amount exceeds the first threshold value.

In operation 1103 , the first processor may determine whether the cradle device 400 is connected to an external power source (eg, TA). According to various embodiments, the first processor may check the connection between the external power interface 460 of the cradle device and the external power source. For example, the third processor 450 may detect the connection between the external power interface and the external power, and transmit a signal indicating whether the connection is made to the first processor. According to various embodiments, when the cradle device 400 is connected to an external power source, the first processor may determine that there is no need to perform balancing. According to various embodiments, when the cradle device is connected to an external power source, the first processor 214 does not perform balancing between the first battery 212 and the second battery 222 and uses the power of the external power source to The battery 212 and the second battery 222 may be controlled to be charged (operation 1105 ). According to various embodiments, when the cradle device is connected to an external power source (eg, TA) using the external power interface 460 , the first processor receives power obtained by changing the external power supply by the charging module 430 of the cradle device. output to charge the first battery 212 and the second battery 222 . According to various embodiments, when the cradle device is not connected to an external power source, the first processor may proceed to step 1104 .

In operation 1104 , the first processor 214 may further determine whether balancing is required. For example, the first processor 214 may check the charge amount of the cradle device 400 . According to various embodiments, the first processor 214 may check the charge amount of the third battery 440 included in the cradle device 400 . Even when an external power source is not connected, if the power charged in the third battery is sufficient, the first battery and the second battery may be charged by using this. According to various embodiments, the first processor 214 may receive information on the charge amount of the third battery 440 from the cradle device 400 or a voltage input from the cradle device 400 to the audio electronic device 200 . can also be detected and measured separately. According to various embodiments, the amount of charge may be a numerical value with respect to voltage. According to various embodiments, the amount of charge may be a value calculated using at least a portion of voltage, amount of charge, temperature, and humidity, and the first processor 214 includes the first battery 212 , the second battery 222 , or the third battery. Information of at least a portion of each voltage, charge amount, temperature, and humidity of 440 may be received, and the amount of charge may be calculated using the received information. According to various embodiments, when the charge amount of the third battery 440 is still sufficient, the first processor 214 does not need to perform balancing between the first battery 212 and the second battery 222 . The voltage may be controlled to charge the first battery 212 and the second battery 222 . According to various embodiments, the first processor 214 performs balancing when the charge amount of the third battery 440 is less than a preset threshold value, and the charge amount of the third battery 440 is greater than the preset threshold value. In such a case, the first battery and the second battery may be charged using the power charged in the third battery without balancing between the first battery and the second battery (operation 1105 ). According to various embodiments, the first processor 214 may compare the charge amount of the third battery 440 with a third threshold value. According to various embodiments, the third threshold may be calculated using at least one of a voltage value and an amount of charge or a combination thereof in the same dimension as the amount of charge.

When the charge amount of the third battery 440 is greater than or equal to the third threshold, the first processor 214 proceeds to operation 1105 , and the first audio electronic device 210 and the second audio electronic device 220 perform the third The battery 440 or an external power source (eg, charging TA) may be received. According to various embodiments, an electrical connection between the first audio electronic device 210 and the second audio electronic device 220 may be interrupted. According to various embodiments, when the first processor 214 determines that there is no need to perform balancing, the connection switch 410 of the cradle device 400, the switch 511 of the first audio electronic device, or the switch of the second audio electronic device By controlling 521 , the connection between the first battery 212 and the second battery 222 may be cut off. According to various embodiments, the first processor 214 does not perform balancing of the first battery 212 and the second battery 222 , and the power of the third battery 440 , an external power source, or a variable power source, for example For example, using a converter (eg, a DC/DC converter) of the charging module 430 of the cradle device to output the changed power or external power of the third battery 440 to the first battery 212 and/or the second The battery 222 may be controlled to be charged.

When the first processor 214 determines that the amount of charge of the third battery 440 is less than the threshold in operation 1104 , the first processor 214 may proceed to operation 1106 .

In operation 1106 , the first processor 214 may cut off the connection between the first audio electronic device 210 and the second audio electronic device 220 with the third battery 440 . For example, the first processor 214 may block the connection of the third battery 440 included in the cradle device 400 to the first battery 212 and the second battery 222 . According to various embodiments, the first processor 214 determines that balancing is necessary, and when the charge amount of the third battery 440 is small, the voltage of the first battery 212 or the second battery 222 increases to the third battery ( In order to prevent the input to the 440 , an electrical connection with the third battery 440 may be cut off. According to various embodiments, the first processor 214 may block the electrical connection with the third battery 440 by controlling the charging switch 420 to be turned off. According to various embodiments, the first processor 214 directly controls the charging switch 420 or transmits a signal to control the charging switch 420 to the third processor 450 of the cradle device 400 to connect the switch 410 ) or the charging switch 420 may be turned on or turned off. According to various embodiments, the first processor 214 controls the connection switch 410 to be turned on and the charging switch 420 to be turned off, thereby controlling the first audio electronic device 210 and the second audio electronic device 220 to be turned off. ) may be electrically connected and the third battery 440 may be disconnected from the audio electronic device 200 .

In operation 1107 , the first processor 214 may perform balancing and supply power from the second battery 222 to the first battery 212 . The balancing process may be similar to operations 603, 613, and 705 of FIG. 7 described above. In operations 1108 and 1109 , the first processor 214 may determine whether balancing is complete ( 1108 ), and cut the electrical connection to complete balancing ( 1109 ). Operations 1108 and 1109 may be similar to operations 604 and 605 described above.

Each operation of FIG. 11 has been mainly described with respect to the operation of the first processor 214 , but the operation of the second processor 224 is not limited thereto. Each operation of the first processor 214 described above in FIG. 11 may be an operation performed by the second processor 224 . According to various embodiments, each operation of the first processor described above in FIG. 11 may be performed by a combination of each operation of the first processor 214 and the second processor 224 . According to various embodiments, each operation of the first processor described above in FIG. 11 may be performed by a combination of each operation of the first processor, the second processor, and the third processor.

12 is a flowchart of an embodiment of controlling balancing of the audio electronic device 200 using the external electronic device 300 .

In operation 1201 , the external electronic device 300 may receive information about the charge amounts of the first battery 212 and the second battery 222 from the audio electronic device 200 . According to various embodiments, the external electronic device 300 may receive various types of information from the first audio electronic device 210 and/or the second audio electronic device 220 . According to various embodiments, the processor 330 may receive information on the amount of charge of each audio electronic device 210 and 220 and information on the state and environment of each audio electronic device 210 and 220, and perform necessary calculations through this. can be done

In operation 1202 , the external electronic device 300 may determine whether balancing of the audio electronic device 200 is required. According to various embodiments, the external electronic device 300 may determine whether balancing between the first battery 212 and the second battery 222 is necessary using the received charge amount information. According to various embodiments, the external electronic device 300 may compare the charge amount information of the first battery 212 and the second battery 222 with each other, perform an operation based on the charge amount information, and obtain a value obtained by combining the charge amount information. You can compare it to another value or perform another operation. For example, the external electronic device 300 may determine whether each of the audio electronic devices 210 and 220 is electrically connected to each other, information on the amount of charge of each of the audio electronic devices 210 and 220 and/or the amount of charge and the first threshold or the first threshold. It can be determined whether balancing is necessary through comparison with the second threshold. According to various embodiments of the present disclosure, the external electronic device 300 receives the charge amount information of the third battery 440 , and based on the comparison between the charge amount of the third battery 440 and the third threshold value, You can determine whether balancing is necessary.

In operation 1203 , the external electronic device 300 may display charge amount information. According to various embodiments, when it is determined that balancing is necessary, the external electronic device 300 may display information including the charge amounts of the first battery 212 and the second battery 222 . According to various embodiments, the external electronic device 300 may display charge amount information on the display 320 , display the charge amount information by displaying the graphic user interface 901 , and receive information from the user in the graphical user interface 901 . Whether to perform balancing can be input. According to various embodiments, when it is determined that balancing is necessary, the external electronic device 300 sends a message so that the user can connect the first audio electronic device 210 and the second audio electronic device 220 to perform balancing. It may be displayed on the display 320 . According to various embodiments, when it is determined that balancing of the audio electronic device 200 or the external electronic device 300 is necessary, a notification may be displayed to the user. For example, the audio output units 216 and 226 of the audio electronic device 200 may output a notification that balancing is required using voice or vibration, and the external electronic device 300 may display ( 320) can be displayed.

In operation 1204 , the external electronic device 300 may receive a balancing request from a user. According to various embodiments, the external electronic device 300 may receive a user's balancing request from the display 320 . According to various embodiments, the external electronic device 300 may receive a balancing request from a user in the graphic user interface 901 . When there is no user's request for balancing, the external electronic device 300 may return to operation 1203 again, and according to another embodiment, the external electronic device 300 may perform balancing even when there is no user's request for balancing. .

In operation 1205 , the external electronic device 300 may control the audio electronic device 200 to perform balancing. According to various embodiments, the external electronic device 300 may control the balancing of the audio electronic device 200 by transmitting a balancing message to the audio electronic device 200 . According to various embodiments, the external electronic device 300 transmits a signal to directly control each of the switches 511 and 521 of the audio electronic device, the connection switch 410 and/or the charging switch 420 of the cradle device, and Balancing may be performed by controlling the power of the second battery 222 to be supplied to the first battery 212 .

In operation 1206 , the external electronic device 300 may receive balancing state information and display it. According to various embodiments, the external electronic device 300 may receive information on the balancing state from the audio electronic device 200 while balancing is in progress. The balancing state information may be information about the states of the first battery 212 and the second battery 222 that are being balancing. For example, the balancing state information may include at least one of a balancing progress rate, a charge amount of the first audio battery 212 , a charge amount of the second battery 222 , and whether balancing is complete. According to various embodiments, the external electronic device 300 may display balancing state information on the display 320 . According to various embodiments, the external electronic device 300 may display the balancing state information on the display 320 using the graphic user interfaces 901 and 902 .

An electronic device according to various embodiments disclosed in this document may include a first electronic device and a second electronic device including a second battery and a second terminal electrically connected to the second battery, wherein the first electronic device The apparatus includes: a first battery, a first terminal electrically connected to the first battery, a first switch for switching between the first battery and the first terminal; and a first processor, wherein the first processor is configured to configure the first switch based on confirming that the first electronic device and the second electronic device are electrically connected through the first terminal and the second terminal. may be controlled to electrically connect the first battery and the second battery.

In addition, the first processor receives the information on the charge level of the first battery and the information on the charge level of the second battery, and the difference between the charge level of the first battery and the charge level of the second battery Based on confirming that is equal to or greater than the first threshold, the first switch may be controlled to electrically connect the first battery and the second battery.

In addition, the first processor, when the charge level of the first battery or the charge level of the second battery is less than a preset second threshold, by controlling the first switch to connect the first battery and the second battery It can be electrically connected.

In addition, the first processor, when the charge level of the first battery and the charge level of the second battery are less than a preset second threshold value, by controlling the first switch to the first battery and the second battery An electronic device that breaks an electrical connection.

In addition, the first electronic device further includes a first sensor, and the first processor confirms that the first electronic device and the second electronic device are electrically connected to the cradle device through the first sensor, The first battery may be electrically connected to the second battery by controlling the first switch based on the confirmation of the electrical connection between the first electronic device and the cradle device for the second electronic device.

In addition, the first processor, based on receiving information on the charge level of the third battery of the cradle device, and confirming that the charge level of the third battery is less than a preset third threshold, the first By controlling a switch, the first battery and the second battery may be electrically connected.

In addition, the first processor checks whether a charging device for charging the third battery of the cradle device is connected to the cradle device, and when the charging device and the cradle device are connected, the power of the cradle device is received. It may be set to supply to the first battery and the second battery.

In addition, the first processor transmits information on the charge level of the first battery and/or information on the charge level of the second battery to the external electronic device, receives a power supply message from the external electronic device, , when the power supply message is received, the first switch may be controlled to electrically connect the first battery and the second battery.

In addition, the first processor, when the difference between the charge level of the first battery and the charge level of the second battery is less than the first threshold value, by controlling the first switch, the first battery and the second battery Electrical connections may be interrupted.

In a method for controlling a battery charge level of an electronic device according to various embodiments disclosed herein, the electronic device includes a first electronic device and a second electronic device, and the method includes the first electronic device and the second electronic device 2 Confirming that the electronic device is electrically connected through an external connection device, and controlling the first switch based on the confirmation of the electrical connection to electrically connect the first battery and the second battery can

In addition, receiving information on the charge level of the first battery of the first electronic device and information on the charge level of the second battery of the second electronic device, and the charge level of the first battery and charging of the second battery The method may include electrically connecting the first battery and the second battery by controlling the first switch based on confirming that the level difference is equal to or greater than a preset first threshold.

In addition, the electrically connecting may include controlling the first switch when the charge level of the first battery or the charge level of the second battery is less than a preset second threshold value to control the first battery and the second battery. may include the step of electrically connecting the

In addition, when the charge level of the first battery and the charge level of the second battery are less than a preset second threshold, controlling the first switch to cut off the electrical connection between the first battery and the second battery may further include.

In addition, based on the step of confirming that the first electronic device and the second electronic device are electrically connected to the cradle device, and confirming the electrical connection with the cradle device of the first electronic device and the second electronic device, the It may include controlling a first switch to electrically connect the first battery and the second battery.

In addition, on the basis of receiving information on the charge level of the third battery of the cradle device and confirming that the charge level of the third battery is less than a preset third threshold, controlling the first switch to control the first switch It may include electrically connecting the first battery and the second battery.

In addition, transmitting information on the charge level of the first battery and information on the charge level of the second battery to an external electronic device, receiving a power supply message from the external electronic device, and receiving the power supply message When receiving, controlling the first switch may further include electrically connecting the first battery and the second battery.

In addition, based on confirming that the difference between the charge level of the first battery and the charge level of the second battery is less than the first threshold, the first switch is controlled to separate the first battery and the second battery. It may further include the step of blocking the electrical connection.

An electronic device according to various embodiments disclosed herein includes a communication module, a display, and a processor operatively connected to the communication module and the display, wherein the processor wirelessly communicates with the electronic device through the communication module Receive information on the charge level of the first electronic device and information on the charge level of the second electronic device from an external electronic device including a first electronic device and a second electronic device connected to the communication module, Calculating a difference between the charging level of the first electronic device and the charging level of the second electronic device, and confirming that the difference between the charging level of the first electronic device and the charging level of the second electronic device is equal to or greater than a first threshold Based on this, the first processor may control to transmit a power supply message for controlling to electrically connect the first battery and the second battery to the external electronic device.

In addition, when the difference between the charging level of the first electronic device and the charging level of the second electronic device is equal to or greater than the first threshold value, information on the charging level of the first electronic device and the charging level of the second electronic device may be displayed on the display.

An electronic device according to various embodiments disclosed herein includes a first battery, a first terminal electrically connected to the first battery, and a first switch for connecting or disconnecting an electrical path between the first battery and the first terminal and a first processor, wherein the first processor confirms that an external electronic device including a second battery is electrically connected to a first terminal, and based on confirming the connection, the first battery and the second battery The first switch may be controlled to electrically connect the battery.

The device may further include a first sensor, and the first processor may confirm that the external electronic device is electrically connected to the first terminal through the first sensor.

In addition, the first processor checks the charge level of the first battery and the charge level of the second battery, calculates a difference between the charge level of the first battery and the charge level of the second battery, and the charging The first switch may be controlled to electrically connect the first battery and the second battery based on determining that the level difference is equal to or greater than a threshold value.

The electronic device according to various embodiments disclosed herein includes a first terminal for electrically connecting to a first external electronic device, electrically connected to the first terminal through an electrical path with the first terminal, and a second external device. A second terminal for electrical connection to an electronic device, a switch for switching an electrical path connected to the first terminal and an electrical path connected to the second terminal, and a processor, wherein the processor includes: the first terminal and a first external electronic device The switch may be checked to check a connection between the two terminals and a connection between the second terminal and the second external electronic device, and to electrically connect the first terminal and the second terminal based on the connection check.

Also, further comprising a battery, wherein the processor is configured to check a charge level of the battery and electrically connect the first terminal and the second terminal based on confirming that the charge level is less than a predetermined threshold value The switch can be controlled.

In addition, further comprising an external power interface for connecting an external power source to the battery, wherein the processor confirms that the external power interface is connected to an external power source, and based on confirming the connection, the first terminal and the second The switch may be controlled to cut off the electrical connection of the two terminals.

210: first audio electronic device 220: second audio electronic device
212: first battery 222: second battery
300: external electronic device 400: cradle device

Claims (25)

In an electronic device,
a first electronic device; and
A second electronic device including a second battery and a second terminal electrically connected to the second battery,
The first electronic device,
a first battery;
a first terminal electrically connected to the first battery;
a first switch for switching between the first battery and the first terminal; and
a first processor;
The first processor,
Based on confirming that the first electronic device and the second electronic device are electrically connected through the first terminal and the second terminal, the first switch is controlled to electrically connect the first battery and the second battery electronic device. According to claim 1,
The first processor,
Receive information on the charge level of the first battery and information on the charge level of the second battery,
Based on confirming that the difference between the charge level of the first battery and the charge level of the second battery is equal to or greater than a first threshold, the first switch is controlled to electrically connect the first battery and the second battery electronic device. According to claim 1,
The first processor,
When the charge level of the first battery or the charge level of the second battery is less than a preset second threshold, the electronic device electrically connects the first battery and the second battery by controlling the first switch. According to claim 1,
The first processor,
When the charge level of the first battery and the charge level of the second battery are less than a preset second threshold, the electronic device controls the first switch to cut off the electrical connection between the first battery and the second battery. According to claim 1,
The first electronic device further includes a first sensor,
The first processor,
confirming that the first electronic device and the second electronic device are electrically connected to the cradle device through the first sensor;
An electronic device electrically connecting the first battery and the second battery by controlling the first switch based on checking the electrical connection between the first electronic device and the cradle device for the second electronic device. 6. The method of claim 5,
The first processor,
Receiving information about the charge level of the third battery of the cradle device,
An electronic device electrically connecting the first battery and the second battery by controlling the first switch based on confirming that the charge level of the third battery is less than a preset third threshold 6. The method of claim 5,
The first processor,
Checking whether a charging device for charging the third battery of the cradle device is connected to the cradle device,
An electronic device configured to receive power from the cradle device and supply it to the first battery and the second battery when the charging device and the cradle device are connected. According to claim 1,
The first processor,
transmitting information on the charge level of the first battery and/or information on the charge level of the second battery to an external electronic device;
receiving a power supply message from the external electronic device;
When receiving the power supply message, the electronic device electrically connects the first battery and the second battery by controlling the first switch. According to claim 1,
The first processor,
When the difference between the charge level of the first battery and the charge level of the second battery is less than the first threshold value, the electronic device controls the first switch to cut off the electrical connection between the first battery and the second battery. A method of controlling a battery charge level of an electronic device, the method comprising:
The electronic device includes a first electronic device and a second electronic device,
The method is
confirming that the first electronic device and the second electronic device are electrically connected through an external connection device; and
and electrically connecting the first battery and the second battery by controlling the first switch based on the confirmation of the electrical connection. 11. The method of claim 10,
receiving information on a charge level of a first battery of the first electronic device and information on a charge level of a second battery of the second electronic device; and
Based on confirming that the difference between the charge level of the first battery and the charge level of the second battery is equal to or greater than a preset first threshold, the first switch is controlled to electrically connect the first battery and the second battery A method comprising the step of connecting. 11. The method of claim 10,
The step of electrically connecting,
When the charge level of the first battery or the charge level of the second battery is less than a preset second threshold, controlling the first switch to electrically connect the first battery and the second battery . 11. The method of claim 10,
When the charge level of the first battery and the charge level of the second battery are less than a preset second threshold, controlling the first switch to cut off the electrical connection between the first battery and the second battery. How to include. 11. The method of claim 10,
confirming that the first electronic device and the second electronic device are electrically connected to a cradle device; and
and controlling the first switch to electrically connect the first battery and the second battery based on confirming the electrical connection between the first electronic device and the cradle device for the second electronic device. . 15. The method of claim 14,
receiving information on a charge level of a third battery of the cradle device; and
and electrically connecting the first battery and the second battery by controlling the first switch based on confirming that the charge level of the third battery is less than a preset third threshold. 11. The method of claim 10,
transmitting information on the charge level of the first battery and information on the charge level of the second battery to an external electronic device;
receiving a power supply message from the external electronic device; and
The method further comprising the step of electrically connecting the first battery and the second battery by controlling the first switch when receiving the power supply message. 11. The method of claim 10,
Based on confirming that the difference between the charge level of the first battery and the charge level of the second battery is less than the first threshold, the first switch is controlled to electrically connect the first battery and the second battery The method further comprising the step of blocking. In an electronic device,
communication module;
display; and
a processor operatively coupled to the communication module and the display;
The processor is
Information on the charge level of the first electronic device and the charge level of the second electronic device from an external electronic device including a first electronic device and a second electronic device connected to the electronic device by wireless communication through the communication module Receive information on from the communication module,
calculating a difference between the charging level of the first electronic device and the charging level of the second electronic device;
to electrically connect the first battery and the second battery to the first processor based on determining that the difference between the charge level of the first electronic device and the charge level of the second electronic device is equal to or greater than a first threshold An electronic device that controls to transmit a controlling power supply message to the external electronic device. 19. The method of claim 18,
When the difference between the charge level of the first electronic device and the charge level of the second electronic device is equal to or greater than the first threshold, information on the charge level of the first electronic device and the charge level of the second electronic device An electronic device for displaying information on the display. In an electronic device,
a first battery;
a first terminal electrically connected to the first battery;
a first switch for connecting or disconnecting an electrical path between the first battery and the first terminal; and
a first processor;
The first processor,
Confirming that the external electronic device including the second battery is electrically connected to the first terminal, and controlling the first switch to electrically connect the first battery and the second battery based on the confirmation that the connection is made Device. 21. The method of claim 20,
Further comprising a first sensor,
The first processor,
An electronic device for confirming that the external electronic device is electrically connected to the first terminal through the first sensor. 21. The method of claim 20,
The first processor,
Check the charge level of the first battery and the charge level of the second battery, calculate the difference between the charge level of the first battery and the charge level of the second battery, that the difference between the charge level is greater than or equal to a threshold value An electronic device controlling the first switch to electrically connect the first battery and the second battery based on the confirmation. in electronic devices
a first terminal for electrically connecting to a first external electronic device;
a second terminal electrically connected to the first terminal through an electrical path with the first terminal and electrically connected to a second external electronic device;
a switch for switching an electrical path connected to the first terminal and an electrical path connected to the second terminal; and
includes a processor
the processor is
the switch confirms a connection between the first terminal and a first external electronic device and a connection between the second terminal and the second external electronic device, and electrically connects the first terminal and the second terminal based on the connection confirmation electronic device that controls it. 24. The method of claim 23,
further comprising a battery;
The processor is
and controlling the switch to electrically connect the first terminal and the second terminal based on checking the charge level of the battery and confirming that the charge level is less than a predetermined threshold. 25. The method of claim 24,
Further comprising an external power interface for connecting an external power source to the battery,
The processor is
Confirming that the external power interface is connected to an external power source, and controlling the switch to cut off the electrical connection between the first terminal and the second terminal based on the confirmation of the connection.

Images