KR20230064501A - Electronic apparatus including a plurality of battries and operating method thereof - Google Patents

Abstract

According to various embodiments, an electronic device may comprise: a plurality of batteries; a charging circuit charging the batteries; a first circuit sensing a voltage of each of the batteries, obtaining a voltage value of each of the batteries, and transmitting one of the obtained voltage values to the charging circuit; and a processor controlling the first circuit. The processor may perform the operations of: controlling, when a first voltage value of each of the batteries obtained by the first circuit exceeds a first threshold voltage value, the first circuit so that the first circuit transmits a maximum voltage value among first voltage values of each of the batteries to the charging circuit; determining whether the batteries are fully charged and selecting, if some of the batteries are not fully charged, one of the batteries which are not fully charged; and controlling the first circuit so that the first circuit transmits a second voltage value of the selected battery among second voltage values of each of the batteries obtained by the first circuit to the charging circuit. In addition, various embodiments are possible. Accordingly, charging safety can be improved.

Description

Electronic device including a plurality of batteries and method of operating the same

Various embodiments relate to an electronic device including a plurality of batteries.

An electronic device may include a plurality of batteries and may charge the plurality of batteries. The electronic device may monitor voltage information of one of a plurality of batteries and perform charging control using the corresponding voltage information. Voltage information used for charge control may include empty voltage due to DC resistance, and thus, a difference may occur from the actual voltage of the battery to be monitored.

Existing charging circuits may structurally monitor voltage information of one of a plurality of batteries, and it may be difficult to monitor voltage information of each battery. An existing charging circuit may charge an unmonitored battery using voltage information of a monitored battery. For example, when there is a fully charged battery and a non-fully charged battery among a plurality of batteries, the existing charging circuit may additionally charge the non-fully charged battery using voltage information of the fully charged battery. In addition, when some of the plurality of batteries require recharge, the existing charging circuit may perform recharge on the batteries that do not require recharge using voltage information of the batteries that do not require recharge. Existing charging circuits can perform additional charging and supplementary charging through inaccurate voltage information.

In addition, the voltage information of the battery being monitored by the existing charging circuit may include empty voltage due to direct current resistance, so it may be greater than the actual voltage of the battery, and the charging time may be increased due to a long CV (constant voltage) charging section. .

In an electronic device including a plurality of batteries, charge/discharge control of each battery considering the state of each battery may be required.

Various embodiments may provide an electronic device capable of performing charging (or charging control) by selecting a voltage value of one of a plurality of batteries according to a condition (or state) when charging a plurality of batteries.

Various embodiments may provide an electronic device capable of additionally charging or supplementing an individual battery according to the state of the individual battery.

Various embodiments may provide an electronic device capable of performing charging (or charging control) using a voltage value in which there is no empty voltage or the empty voltage is minimized.

The technical problem to be achieved in this document is not limited to the above-mentioned technical problem, and other technical problems not mentioned can be clearly understood by those skilled in the art from the description below. will be.

An electronic device according to various embodiments obtains a voltage value of each of a plurality of batteries, a charging circuit for charging the batteries, sensing voltages of each of the batteries, and selecting one of the obtained voltage values. It may include a first circuit for transmitting to the charging circuit, and a processor for controlling the first circuit. The processor determines that the first circuit determines a maximum voltage value among the first voltage values of each of the batteries when the first voltage value of each of the batteries obtained by the first circuit exceeds a first threshold voltage value. control the first circuit to pass to the charging circuit, determine whether the batteries are fully charged, and if some of the batteries are not fully charged, select one of the batteries that are not fully charged; Among the second voltage values of each of the batteries obtained by the first circuit, the first circuit may control the first circuit to transfer the second voltage value of the selected battery to the charging circuit. The charging circuit may determine a first charging current value based on the maximum voltage value and charge the batteries in a first charging mode based on the determined first charging current value.

An electronic device according to various embodiments transmits a minimum voltage value among a plurality of batteries, a charging circuit for charging the batteries, and a first voltage value obtained by sensing voltages of each of the batteries in a first mode to the charging circuit In the second mode, the maximum voltage value among the second voltage values sensed by the voltage of each of the batteries is transferred to the charging circuit, and among the third voltage values sensed by the voltage of each of the batteries in the third mode. A first circuit that transfers the third voltage value of the battery selected by the processor to the charging circuit, and the first circuit when the initial voltage value of each of the batteries obtained by the first circuit exceeds a first threshold voltage value. 1 circuit controls the first circuit to operate in the second mode, determines whether the batteries are fully charged, and if some of the batteries are not fully charged, select one of the batteries that are not fully charged. and a processor for selecting and controlling the first circuit to operate in the third mode. The first circuit may operate in the first mode when at least one of the initial voltage values is less than or equal to the first threshold voltage value.

An operating method of an electronic device according to various embodiments of the present disclosure may include, when a first voltage value of each of the batteries obtained by a first circuit exceeds a first threshold voltage value, the first circuit controls the first voltage value of each of the batteries. An operation of controlling the first circuit to transfer a maximum voltage value among voltage values to a charging circuit, an operation of determining whether the batteries are fully charged, and when some of the batteries are not fully charged, the not fully charged battery. an operation of selecting one of the batteries, and causing the first circuit to transfer the second voltage value of the selected battery to the charging circuit among the second voltage values of each of the batteries obtained by the first circuit; It may include an operation to control the circuit.

An electronic device according to various embodiments may perform charging control by selecting a voltage value of one of a plurality of batteries according to a condition (or state), thereby improving charging safety.

An electronic device according to various embodiments may perform replenishment or additional charging according to the state of an individual battery, thereby improving the charging stability of each battery.

An electronic device according to various embodiments may perform charging (or charge control) using a voltage value in which there is no empty voltage or the empty voltage is minimized, thereby shortening the charging time.

In addition to this, various effects identified directly or indirectly through this document may be provided.

1 illustrates a block diagram of an electronic device in a network environment, according to various embodiments.
2 is a block diagram of a power management module and a battery, according to various embodiments.
3 is a block diagram illustrating an example of an electronic device according to various embodiments.
4 is a diagram for explaining an example of a circuit configuration of an electronic device according to various embodiments.
5 is a diagram for explaining an example of a first circuit in an electronic device according to various embodiments.
6 is a flowchart illustrating an example of a charging operation of an electronic device according to various embodiments.
7 is a flowchart illustrating an example of a method of operating an electronic device according to various embodiments of the present disclosure.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. In the description with reference to the accompanying drawings, the same reference numerals are given to the same components regardless of reference numerals, and overlapping descriptions thereof will be omitted.

1 is a block diagram of an electronic device 101 within a network environment 100 according to various embodiments. Referring to FIG. 1 , in a network environment 100, an electronic device 101 communicates with an electronic device 102 through a first network 198 (eg, a short-range wireless communication network) or through a second network 199. It may communicate with at least one of 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 one 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, 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 the antenna module 197 may be included. In some embodiments, in the electronic device 101, at least one of these components (eg, the connection terminal 178) may be omitted or one or more other components may be added. 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). It can be.

The processor 120, for example, executes software (eg, the program 140) to cause 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 calculations. According to one embodiment, as at least part of data processing or operation, the processor 120 transfers instructions or data received from other components (eg, sensor module 176 or communication module 190) to volatile memory 132. , processing commands or data stored in the volatile memory 132 , and storing resultant data in the non-volatile memory 134 . According to one embodiment, the processor 120 may include a main processor 121 (eg, a central processing unit or an application processor) or a secondary processor 123 (eg, a graphic processing unit, a neural network processing unit (eg, a graphic processing unit, a neural network processing unit) that may operate independently of or together with the main processor 121). NPU: neural processing unit (NPU), image signal processor, sensor hub processor, or communication processor). For example, when the electronic device 101 includes the main processor 121 and the auxiliary processor 123, the auxiliary processor 123 may use less power than the main processor 121 or be set to be specialized for a designated function. can The secondary processor 123 may be implemented separately from or as part of the main processor 121 .

The secondary processor 123 may, for example, take the place of the main processor 121 while the main processor 121 is in an inactive (eg, sleep) state, or the main processor 121 is active (eg, running an application). ) state, 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 auxiliary processor 123 (eg, an image signal processor or a communication processor) may be implemented as part of other functionally related components (eg, the camera module 180 or the communication module 190). there is. According to one embodiment, the auxiliary processor 123 (eg, a neural network processing device) may include a hardware structure specialized for processing an artificial intelligence model. AI models can be created through machine learning. Such learning may be performed, for example, in the electronic device 101 itself where the artificial intelligence model is performed, or may be performed through a separate server (eg, the server 108). The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning or reinforcement learning, but in the above example Not limited. The artificial intelligence model may include a plurality of artificial neural network layers. Artificial neural networks include deep neural networks (DNNs), convolutional neural networks (CNNs), recurrent neural networks (RNNs), restricted boltzmann machines (RBMs), deep belief networks (DBNs), bidirectional recurrent deep neural networks (BRDNNs), It may be one of deep Q-networks or a combination of two or more of the foregoing, but is not limited to the foregoing examples. The artificial intelligence model may include, in addition or alternatively, software structures in addition to hardware structures.

The memory 130 may store various data used by at least one component (eg, the processor 120 or the sensor module 176) of the electronic device 101 . The data may include, for example, input data or output data for software (eg, program 140) and commands related thereto. The memory 130 may include volatile memory 132 or 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 of the electronic device 101 (eg, a user). 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 sound signals 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. A receiver may be used to receive an incoming call. According to one embodiment, the receiver may be implemented separately from the speaker or as part of it.

The display module 160 may visually provide information to the outside of the electronic device 101 (eg, a user). The display module 160 may include, for example, a display, a hologram device, or a projector and a control circuit for controlling the device. According to one embodiment, the display module 160 may include a touch sensor configured to detect a touch or a pressure sensor configured to measure the intensity of force generated by the touch. The display module 160 may be exemplarily implemented as a foldable structure and/or a rollable structure. For example, the size of the display screen of the display module 160 may be reduced when folded and expanded when unfolded.

The audio module 170 may convert sound into an electrical signal or vice versa. According to one embodiment, the audio module 170 acquires sound through the input module 150, the sound output module 155, or an external electronic device connected directly or wirelessly to the electronic device 101 (eg: Sound may be output through the electronic device 102 (eg, a speaker or a headphone).

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

The interface 177 may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device 101 to an external electronic device (eg, the electronic device 102). According to one 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 may be physically connected to an external electronic device (eg, the electronic device 102). According to one 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 electrical signals into mechanical stimuli (eg, vibration or motion) or electrical stimuli that a user may perceive through tactile or kinesthetic senses. According to one 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 one 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 one embodiment, the power management module 188 may be implemented as at least part of a power management integrated circuit (PMIC), for example.

The battery 189 may supply power to at least one component of the electronic device 101 . According to one embodiment, the battery 189 may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, 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). Establishment and communication through the established communication channel may be supported. The communication module 190 may include one or more communication processors that operate independently of the processor 120 (eg, an application processor) and support direct (eg, wired) communication or wireless communication. According to one embodiment, the communication module 190 is a wireless communication module 192 (eg, a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (eg, : a local area network (LAN) communication module or a power line communication module). Among these communication modules, a corresponding communication module is a first network 198 (eg, a short-range communication network such as Bluetooth, 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 telecommunications network such as a computer network (eg, a LAN or a WAN). These various types of communication modules may be integrated as one component (eg, a single chip) or implemented as a plurality of separate components (eg, multiple chips). 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, NR access technology (new radio access technology). NR access technologies include high-speed transmission of high-capacity data (enhanced mobile broadband (eMBB)), minimization of terminal power and access of multiple terminals (massive machine type communications (mMTC)), or high reliability and low latency (ultra-reliable and low latency (URLLC)). -latency communications)) can be supported. The wireless communication module 192 may support a high frequency band (eg, mmWave band) to achieve a high data rate, for example. The wireless communication module 192 uses various technologies for securing performance in a high frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), and full-dimensional multiplexing. Technologies such as input/output (FD-MIMO: full dimensional MIMO), array antenna, analog beam-forming, or large scale antenna may be supported. The wireless communication module 192 may support various requirements defined for the electronic device 101, an external electronic device (eg, the electronic device 104), or a network system (eg, the second network 199). According to one embodiment, the wireless communication module 192 is a peak data rate for eMBB realization (eg, 20 Gbps or more), a loss coverage for mMTC realization (eg, 164 dB or less), or a U-plane latency for URLLC realization (eg, Example: downlink (DL) and uplink (UL) each of 0.5 ms or less, or round trip 1 ms or less) may be supported.

The antenna module 197 may transmit or receive signals or power to the outside (eg, an external electronic device). According to one embodiment, the antenna module 197 may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (eg, PCB). According to one 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 selected from the plurality of antennas by the communication module 190, for example. 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)) may be additionally formed as a part of the antenna module 197 in addition to the radiator.

According to various embodiments, the antenna module 197 may form a mmWave antenna module. According to one embodiment, the mmWave antenna module includes a printed circuit board, an RFIC disposed on or adjacent to a first surface (eg, a lower surface) of the printed circuit board and capable of supporting a designated high frequency band (eg, mmWave band); and a plurality of antennas (eg, array antennas) disposed on or adjacent to a second surface (eg, a top surface or a side surface) 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 signal ( e.g. commands or data) can be exchanged with each other.

According to an embodiment, commands 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 part of operations executed in the electronic device 101 may be executed in one or more external electronic devices among the external electronic devices 102 , 104 , or 108 . For example, when the electronic device 101 needs to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device 101 instead of executing the function or service by itself. Alternatively or additionally, one or more external electronic devices may be requested to perform the function or at least part of the service. One or more external electronic devices receiving 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 deliver the execution result to the electronic device 101 . The electronic device 101 may provide the result as at least part of a response to the request as it is or additionally processed. To this end, 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 one embodiment, the external electronic device 104 or server 108 may be included in the second network 199 . The electronic device 101 may be applied to intelligent services (eg, smart home, smart city, smart car, or health care) based on 5G communication technology and IoT-related technology.

2 is a block diagram 200 of a power management module 188 and a battery 189 according to various embodiments.

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

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

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

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

According to an embodiment, at least a portion of the information on the state of use or the state of charge of the battery 189 is transmitted by a corresponding sensor (eg, a temperature sensor) of the sensor module 176, a power gauge 230, or a power management module. It can be measured using (188). According to one embodiment, the corresponding sensor (eg, temperature sensor) of the sensor module 176 may be included as part of the battery protection circuit 240 or disposed adjacent to the battery 189 as a separate device. can

Electronic devices according to various embodiments disclosed in this document may be devices of various types. 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. An electronic device according to an embodiment of the present document is not limited to the aforementioned devices.

Various embodiments of this document and terms used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, like reference numbers may be used for like or related elements. The singular form of a noun corresponding to an item may include one item or a plurality of items, unless the relevant context clearly dictates otherwise. In this document, "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C", and "A Each of the phrases such as "at least one of , B, or C" may include any one of the items listed together in that phrase, or all possible combinations thereof. Terms such as "first", "second", or "first" or "secondary" may simply be used to distinguish that component from other corresponding components, and may refer to that component in other respects (eg, importance or order) is not limited. A (eg, first) component is said to be "coupled" or "connected" to another (eg, second) component, with or without the terms "functionally" or "communicatively." When mentioned, it means that the certain component may 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, logical blocks, parts, or circuits. can be used as A module may be an integrally constructed component or a minimal unit of components or a portion thereof that performs one or more functions. For example, according to one embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of this document are stored in a storage medium (eg, internal memory 136 or external memory 138) readable by a machine (eg, electronic device 101 of FIG. 1 ). It may be implemented as software (eg, program 140) comprising one or more instructions. For example, a processor (eg, the processor 120 ) of a device (eg, the electronic device 101 ) may call at least one command among one or more instructions stored from a storage medium and execute it. This enables the device to be operated to perform at least one function according to the at least one command invoked. 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-temporary' only means that the storage medium is a tangible device and does not contain a signal (e.g. electromagnetic wave), and this term refers to the case where data is stored semi-permanently in the storage medium. It does not discriminate when it is temporarily stored.

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

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

3 is a block diagram illustrating an example of an electronic device according to various embodiments.

Referring to FIG. 3, the electronic device 300 (eg, the electronic device 101 of FIG. 1) includes an OVP IC (overvoltage protection integrated circuit) 320, a charging circuit 330 (eg, the charging circuit of FIG. 2 ( 210)), a processor 340 (eg, the processor 120 of FIG. 1 ), a first circuit 350, a plurality of limiter circuits 360-1 to 360-n, and a plurality of batteries 370- 1 to 370-n).

According to various embodiments, each of the plurality of batteries 370 - 1 to 370 - n may be an example of the battery 189 of FIG. 1 .

At least one of the components of the electronic device 300 may be the same as or similar to at least one of the components of the electronic device 101 of FIG. 1 , and duplicate descriptions will be omitted below.

According to various embodiments, the electronic device 300 may be connected to the power supply device 310 (eg, an adapter or a wireless charging pad) wirelessly (eg, electromagnetic coupling) or wired.

According to various embodiments, the OVP IC 320 may transfer the supplied power to the charging circuit 330 when the voltage of the power supplied from the power supply device 310 is less than a certain level. When the voltage of the power supplied from the power supply device 310 exceeds a certain level, the OVP IC 320 may turn off a switch in the OVP IC 320 so that the corresponding power is not output from the OVP 320. there is. The OVP IC 320 may protect components of the electronic device 300 from overvoltage power. In the example shown in FIG. 3 , the OVP IC 320 may be located outside the charging circuit 330 . Without being limited thereto, the OVP IC 320 may be included in the charging circuit 330 .

According to various embodiments, the first circuit 350 may obtain a voltage value of each of the batteries 370-1 to 370-n by sensing the voltage of each of the batteries 370-1 to 370-n. . The first circuit 350 may obtain a voltage value of each of the batteries 370-1 to 370-n when the batteries 370-1 to 370-n are charged, and may obtain a voltage value of each of the batteries 370-1 to 370-n. When the battery 370-n is discharged, the voltage value of each of the batteries 370-1 to 370-n may be obtained, and when some of the batteries 370-1 to 370-n are discharged and the rest are charged. The batteries 370-1 to 370-n may obtain respective voltage values.

According to various embodiments, the first circuit 350 may transfer a selected voltage value among voltage values of each of the batteries 370 - 1 to 370 - n to the charging circuit 330 . In one embodiment, the first circuit 350 may select a minimum voltage value among voltage values of each of the batteries 370 - 1 to 370 - n and transfer the selected voltage value to the charging circuit 330 . The first circuit 350 may select a maximum voltage value among voltage values of each of the batteries 370 - 1 to 370 - n and transfer the selected voltage to the charging circuit 330 . The first circuit 350 may transmit the voltage value of the battery selected by the processor 340 among the voltage values of each of the batteries 370 - 1 to 370 - n to the charging circuit 330 .

According to various embodiments, each of the plurality of limiter circuits 360-1 to 360-n allows charging current to flow into each of the batteries 370-1 to 370-n or the batteries 370-1 to 370-n. n) Each discharge current may be supplied to components of the electronic device 300 . In one embodiment, each of the limiter circuits 360-1 to 360-n may include a first transistor and a second transistor. When the batteries 370-1 to 370-n are charged, the first transistor of each of the limiter circuits 360-1 to 360-n may be turned off and the second transistor may be turned on. When the batteries 370-1 to 370-n are discharged, the second transistor of each of the limiter circuits 360-1 to 360-n may be turned off and the first transistor may be turned on.

According to various embodiments, each of the plurality of limiter circuits 360-1 to 360-n may include a power gauge (eg, the power gauge 230 of FIG. 2). The power gauge of each of the limiter circuits 360-1 to 360-n is provided with state information (eg, state of charge (SOC), current value, voltage value) of each of the batteries 370-1 to 370-n. , and/or temperature values) can be obtained. The power gauge of each of the limiter circuits 360-1 to 360-n may transfer state information of each of the batteries 370-1 to 370-n to the processor 340.

According to various embodiments, the voltage value obtained by each power gauge includes a voltage value by direct current resistance (DCR), so that each of the batteries 370-1 to 370-n obtained by the first circuit 350 The voltage value of may be more accurate than the voltage value obtained by each power gauge. The electronic device 300 may control the charging of the batteries 370-1 to 370-n based on voltage values selected according to states of the batteries 370-1 to 370-n.

<prequalification charge (pre charge)>

According to various embodiments of the present disclosure, when the electronic device 300 and the power supply device 310 are wired or wirelessly connected, the first circuit 350 generates a voltage value of ₁ for each of the batteries 370-1 to 370-n. (or an initial voltage value) can be obtained.

According to various embodiments, the first circuit 350 may determine whether each obtained voltage value ₁ exceeds a first threshold voltage value (eg, 3.1V). In one embodiment, the first circuit 350 checks whether each of the batteries 370-1 to 370-n has _a voltage sufficient to enable high-speed CC charging, which will be described later. It may be determined whether the voltage exceeds the first threshold voltage value.

According to various embodiments, the first circuit 350 may transfer whether each obtained voltage value ₁ exceeds the first threshold voltage value to the charging circuit 330 and/or the processor 340 . For example, the first circuit 350 may transfer information indicating that each obtained voltage value ₁ exceeds the first threshold voltage value to the charging circuit 330 and/or the processor 340 . The first circuit 350 may transmit information indicating that at least one of the obtained voltage values ₁ is equal to or less than the first threshold voltage value to the charging circuit 330 and/or the processor 340 .

According to various embodiments, the first circuit 350 may operate in the first mode when at least one of the obtained voltage values ₁ is equal to or less than the first threshold voltage value. The first mode may indicate an operation mode in which the first circuit 350 selects a minimum voltage value among given voltage values.

According to various embodiments, the charging circuit 330 may perform pre-charging when one or more of the obtained voltage values ₁ is equal to or less than the first threshold voltage value. Pre-charging may be low-rate charging. In one embodiment, the charging circuit 330 may charge the batteries 370-1 to 370-n with a constant current of a charging current value of ₁ (eg, 0.1 C-rate). Hereinafter, C-rate is referred to as "C".

According to various embodiments, in the first mode, the first circuit 350 may select a minimum voltage value among voltage values of each of the pre-charged batteries 370-1 to 370-n, and the selected minimum voltage value may be 1 It can be determined whether the threshold voltage value is exceeded. When the minimum voltage value does not exceed the first threshold voltage value, the first circuit 350 selects the minimum voltage value among the voltage values of each of the pre-charged batteries 370-1 to 370-n and the minimum voltage value. An operation of determining whether the value exceeds the first threshold voltage value may be repeated. The first circuit 350 switches the operation mode from the first mode to the second mode when the minimum voltage value among voltage values of each of the pre-charged batteries 370-1 to 370-n exceeds the first threshold voltage value. can be changed to The second mode may indicate an operation mode in which the first circuit 350 selects a maximum voltage value among given voltage values. In the second mode, the first circuit 350 may select a maximum voltage value among the voltage values of each of the batteries 370-1 to 370-n and transfer the selected maximum voltage value to the charging circuit 330. . The charging circuit 330 may determine a charging current value based on the maximum voltage value, and may perform CC charging to be described later on the batteries 370-1 to 370-n.

<CC (constant current) charge/CV (constant voltage) charge>

According to various embodiments, the processor 340 may perform the first circuit 350 when a voltage value ₁ (or an initial voltage value) of each of the batteries 370-1 to 370-n exceeds a first threshold voltage value. may control the first circuit 350 to operate in the second mode.

According to various embodiments, when the voltage value ₁ of each of the batteries 370-1 to 370-n exceeds the first threshold voltage value, in the second mode, the first circuit 350 operates the batteries 370- 1 to 370-n), the maximum voltage value (hereinafter, expressed as the maximum voltage value _ini ) of each voltage value ₁ may be transferred to the charging circuit 330 .

According to various embodiments, the charging circuit 330 may determine the charging current value ₂ based on the maximum voltage value _ini . For example, a current value for each voltage value may be stored in a memory (not shown) in the charging circuit 330 . When the maximum voltage value _ini is 4.2V, the charging circuit 330 may determine the charging current value ₂ as 2C by referring to the current value for each voltage value stored in the memory.

According to various embodiments, the charging circuit 330 may charge the batteries 370-1 to 370-n in the CC mode based on the charging current value ₂ . Charging in CC mode may be fast charging (or super fast charging). In one embodiment, the charging circuit 330 may request power of a maximum voltage value and a charging current value of ₂ from the power supply device 310, and may receive constant current power from the power supply device 310. The charging circuit 330 may charge the batteries 370-1 to 370-n with constant current power.

According to various embodiments, the first circuit 350 may periodically obtain a voltage value of each of the batteries 370-1 to 370-n charged in the CC mode, and at each point in time, the batteries 370-1 to 370-n), the maximum voltage value among the respective voltage values may be transmitted to the charging circuit 330 .

According to various embodiments, the charging circuit 330 may periodically receive a maximum voltage value from the first circuit 350 while charging the batteries 370-1 to 370-n in the CC mode, and at each point in time It is possible to check whether the maximum voltage value received at the second threshold voltage value (eg, 4.4V) reaches (or is greater than or equal to the second threshold voltage value). When the maximum voltage value received at time point ₁ reaches the second threshold voltage value (or is greater than or equal to the second threshold voltage value), the charging circuit 330 supplies the batteries 370-1 to 370-n in the CV mode. can be charged For example, the charging circuit 330 may charge the batteries 370-1 to 370-n with power of a constant voltage of 4.4V.

According to various embodiments, the charging circuit 330 may notify the processor 340 that the CC mode has been changed to the CV mode.

According to various embodiments, the processor 340 may receive status information from a power gauge of each of the batteries 370-1 to 370-n while the batteries 370-1 to 370-n are being charged in the CV mode. can A power gauge of each of the batteries 370-1 to 370-n may indicate a power gauge included in each of the limiter circuits 360-1 to 360-n.

According to various embodiments, the processor 340 may determine whether a current value received from each power gauge is less than a termination current value (eg, less than 0.1C). The processor 340 may determine that a battery having a current value less than the final current value is fully charged, and may determine that a battery having a current value equal to or greater than the final current value is not fully charged.

According to various embodiments, the processor 340 may set a fully charged battery to a supplement mode. Batteries set to replenishment mode may be discharged without being charged.

<Charging for a battery that is not fully charged>

According to various embodiments of the present disclosure, when some of the batteries 370-1 to 370-n are not fully charged, the processor 340 determines some of the batteries that are not fully charged by using state information of some of the batteries that are not fully charged. You can choose one of them. For example, the processor 340 may select a battery having the highest state of charge among some batteries that are not fully charged.

According to various embodiments, the processor 340 may control the first circuit 350 to operate in the third mode when one of the batteries that are not fully charged is selected. The third mode may indicate an operation mode in which the first circuit 350 selects a voltage value of a battery selected by the processor 340 from among given voltage values.

According to various embodiments, the charging circuit 330 may charge some batteries that are not fully charged in the CV mode. The first circuit 330 may obtain a voltage value of each of the batteries 370-1 to 370-n. The first circuit 330 may obtain a voltage value of each of the batteries in the replenishment mode and obtain a voltage value of each of the batteries being charged in the CV mode. The first circuit 330 may transfer the voltage value of the battery selected by the processor 340 among the obtained voltage values to the charging circuit 330 . In one embodiment, the charging circuit 330 may monitor the battery selected by the processor 340 so that it does not become an overvoltage state.

According to various embodiments, the processor 340 may receive state information of each of the batteries 370-1 to 370-n from a power gauge of each of the batteries 370-1 to 370-n. In one embodiment, the processor 340 may determine whether the current value of each of some batteries being charged in the CV mode is less than the final current value. The processor 340 may determine that each of the some batteries being charged in the CV mode is fully charged when the current value of each of the some batteries being charged in the CV mode is less than the final current value, and replenish the batteries determined to be fully charged. mode can be set.

According to various embodiments, the processor 340 determines that charging of the batteries 370-1 to 370-n is terminated when it is determined that each of the batteries 370-1 to 370-n is fully charged. can

<Recharge>

According to various embodiments, after charging of the batteries 370-1 to 370-n is finished, the electronic device 300 is connected to the power supply device 310 by wire or wirelessly. For example, even after charging of the batteries 370-1 to 370-n is finished, the electronic device 300 may be connected to an adapter or may be positioned on a wireless charging pad. In a state in which the electronic device 300 is connected to the power supply 310, the batteries 370-1 to 370-n can be discharged in the replenishment mode, and the batteries 370-1 to 370-n As the voltage of one or more or all of the batteries 370 - 1 to 370 - n decreases, there may be a battery that needs to be replenished.

According to various embodiments of the present disclosure, the processor 340 may determine whether any of the batteries 370-1 to 370-n requires replenishment after charging of the batteries 370-1 to 370-n is terminated. . In one embodiment, the processor 340 may receive state information of each of the batteries 370-1 to 370-n from a power gauge of each of the batteries 370-1 to 370-n, and each received It is possible to determine whether any of the batteries 370-1 to 370-n needs to be replenished using the received state information. For example, the processor 340 may compare the voltage value received from the power gauge of each of the batteries 370-1 to 370-n with the third threshold voltage value, and the voltage value is less than the third threshold voltage value (or below) can be identified as requiring replenishment. In an embodiment, the third threshold voltage value may be a value obtained by subtracting a predetermined value (eg, a value between 70mV and 100mV) from the second threshold voltage value (eg, 4.4V).

According to various embodiments, when some of the batteries 370-1 to 370-n require replenishment power, the processor 340 uses state information of each of the batteries 370-1 to 370-n to identify some of the batteries that require replenishment power. You can choose one of them. For example, the processor 340 may select a battery having the highest state of charge from among some batteries requiring replenishment. When one of the batteries requiring replenishment is selected, the processor 340 may control the first circuit 350 to operate in the third mode. In the third mode, the first circuit 330 may obtain a voltage value of each of the batteries 370-1 to 370-n, and the voltage value of a selected battery among some batteries requiring replenishment is applied to the charging circuit 330. can be forwarded to The charging circuit 330 may charge some batteries requiring replenishment in the CV mode.

According to various embodiments of the present disclosure, one of the batteries 370-1 to 370-n may require replenishment. When there is one battery that requires replenishment, the processor 340 may control the first circuit 350 to operate in the third mode. In the third mode, the first circuit 330 may obtain a voltage value of each of the batteries 370-1 to 370-n, and a supplementary transition among the voltage values of each of the batteries 370-1 to 370-n A required voltage value of the battery may be transmitted to the charging circuit 330 . The charging circuit 330 may charge a battery requiring replenishment in the CV mode.

According to various embodiments, the processor 340 may determine that all of the batteries 370-1 to 370-n require replenishment. When the processor 340 determines that all of the batteries 370-1 to 370-n require replenishment power, the processor 340 may control the first circuit 350 to operate in the second mode, The charging circuit 300 may be instructed (or requested) to charge the batteries 370 - 1 to 370 - n (eg, CV charging). In the second mode, the first circuit 330 may obtain a voltage value of each of the batteries 370-1 to 370-n, and a maximum voltage among the voltage values of each of the batteries 370-1 to 370-n. A value may be transferred to the charging circuit 330 . The charging circuit 330 may charge the batteries 370-1 to 370-n in the CV mode.

4 is a diagram for explaining an example of a circuit configuration of an electronic device 300 according to various embodiments.

4 shows examples of the charging circuit 330, the processor 340, the limiter circuits 360-1 and 360-2, the batteries 370-1 and 370-2, and the first circuit 350, respectively. is shown For convenience of explanation, FIG. 4 shows an example of each of the limiter circuits 360-1 and 360-2 and the first and second batteries 370-1 and 370-2.

According to various embodiments, the first circuit 350 may include a plurality of voltage sensors (not shown). Each voltage sensor in the first circuit 350 may obtain a voltage value of each of the batteries 370-1 to 370-n by sensing the voltage of each of the batteries 370-1 to 370-n.

According to various embodiments, each voltage sensor in the first circuit 350 senses the voltage at both ends of each of the batteries 370-1 to 370-n to measure the voltage of each of the batteries 370-1 to 370-n. A voltage value can be obtained. The voltage values obtained by each of the voltage sensors may not include empty voltage values due to DC resistance present on the charging path. The first circuit 350 may obtain an accurate voltage value of each of the batteries 370-1 to 370-n.

According to various embodiments, the charging circuit 330 may include a port (BAT SP/SN) 430-1, and the first circuit 350 may include a port (BAT SP/SN) 430-2. can include The port 430-1 of the charging circuit 300 and the port 430-2 of the first circuit 350 may be connected through a line. The first circuit 350 may select one of the voltage values of each of the batteries 370-1 to 370-n in each of the first to third modes, and charge the selected voltage value through the port 430-2. It can be passed to circuit 330. The charging circuit 330 may receive the voltage value selected by the first circuit 350 from the first circuit 350 through the port 430 - 1 .

According to various embodiments, the processor 340 may include a port (AP SELECT) 440-1, and the first circuit 350 may include a port (AP SELECT) 440-2. The port 440-1 of the processor 340 and the port 440-2 of the first circuit 350 may be connected through a line. The processor 340 may select one of the batteries 370-1 to 370-n (eg, a battery that is not fully charged or a battery that needs to be replenished), and transmits information about the selected battery through the port 440-1. It can be transmitted to the first circuit 350 through. The first circuit 350 may receive information about the battery selected by the processor 340 from the processor 340 through the port 440 - 2 . The first circuit 350 may select a voltage value of a battery selected by the processor 340 from among the batteries 370 - 1 to 370 - n and transmit the selected voltage value to the charging circuit 330 .

According to various embodiments, the limiter circuit 360-1 may include a first transistor 410-1, a second transistor 410-2, and a power gauge 410-3. When battery 1 370-1 is charged, the processor 340 can turn off the first transistor 410-1 and turn on the second transistor 410-2. The charging circuit 330 may charge the battery 1 370-1 by supplying power to the battery 1 370-1. When the battery 1 370-1 is fully charged, the processor 340 may set the battery 1 370-1 to a replenishment mode, turn on the first transistor 410-1, and turn on the second transistor ( 410-2) can be turned off. Battery 1 (370-1) can be discharged in replenishment mode. The power gauge 410-3 may obtain state information of battery 1 370-1 and transmit the state information to the processor 340. In the case of the example shown in FIG. 4 , the power gauge 410-3 may be located within the limiter circuit 360-1. Without being limited thereto, the power gauge 410-3 may be located outside the limiter circuit 360-1 to obtain state information of the battery 1 370-1.

The limiter circuit 360-2 may include a first transistor 420-1, a second transistor 420-2, and a power gauge 420-3. The description of the limiter circuit 360-1 may be applied to the description of the limiter circuit 360-2 and each of the limiter circuits of the remaining batteries.

5 is a diagram for explaining an example of a first circuit in the electronic device 300 according to various embodiments.

5 shows an example of the first circuit 500 when the electronic device 300 includes two batteries 370-1 and 370-2. The first circuit 500 may be an example of the first circuit 350 of FIGS. 3 and 4 . The description of FIG. 5 may be applied when the electronic device 300 includes three or more batteries.

According to various embodiments, the first circuit 500 may include a first multiplexer 510 , a second multiplexer 520 , a first comparator 530 , and a second comparator 540 . Although not shown in FIG. 5 , the first circuit 500 may include voltage sensors for each of the batteries 370-1 and 370-2.

According to various embodiments, the first circuit 500 may operate in a first mode. The first mode may indicate an operation mode in which the first circuit 500 selects a minimum voltage value among given voltage values. In one embodiment, the first circuit 500 may include a control circuit (not shown), and the control circuit may include at least one voltage value ₁ of each of the batteries 370-1 and 370-2 in the first circuit 500. If the voltage is less than or equal to the threshold voltage, the first circuit 500 may operate in the first mode. For example, the control circuit transmits a first control signal indicating operation in the first mode when at least one of the voltage values ₁ of the batteries 370-1 and 370-2 is equal to or less than the first threshold voltage value, and the second mux (520). The second mux 520 may operate so that the output of the first comparator 530 is input as a control signal of the first mux 510 based on the first control signal. In another embodiment, the operation of the control circuit in the first circuit 500 described above may be implemented by the processor 340 .

According to various embodiments, in the first mode, each voltage sensor may obtain a voltage value _a of each of the batteries 370-1 and 370-2, and the first multiplexer 510 may obtain the batteries ( 370-1 and 370-2) each voltage value _a can be input. In the first mode, the first comparator 530 may compare the voltage value _a of each of the batteries 370-1 and 370-2, and may compare the voltage value a of each of the batteries 370-1 and 370-2 with the minimum voltage value _a . A state value corresponding to a battery having a voltage value may be output to the second multiplexer 520 . In the first mode, the second mux 520 may operate such that the state value output from the first comparator 530 is input as a control signal of the first mux 510 . The first mux 510 may transfer a battery voltage value corresponding to a state value output from the first comparator 530 among voltage values of the batteries 370-1 and 370-2 to the charging circuit 330. there is. For example, the first comparator 530 determines whether the voltage value _a of battery 1 370-1 is the smallest among _the voltage values a of batteries 370-1 and 370-2. The corresponding state value ₁ may be output to the second mux 520 . The second mux 520 may transfer the state value ₁ to the first mux 510, and the first mux 510 may transmit the state value ₁ of the voltage values _a of the batteries 370-1 and 370-2. The corresponding voltage value _a of battery 1 (370-1) may be transmitted to the charging circuit 330. The first mux 510 may select the voltage value _a of the battery 370-1 from among the voltage values of the batteries 370-1 and 370-2 based on the state value ₁ , and charge the selected voltage value _a . It can be passed to circuit 330.

According to various embodiments, the first circuit 500 may operate in the second mode. The second mode may indicate an operation mode in which the first circuit 500 selects a maximum voltage value among given voltage values. In one embodiment, the processor 340 operates the first circuit 500 in the second mode when the voltage value ₁ of each of the batteries 370-1 and 370-2 exceeds the first threshold voltage value. A second control signal indicating what to do may be transmitted to the second mux 520 . The second mux 520 may operate such that an output of the second comparator 540 is input as a control signal of the first mux 510 based on the second control signal.

According to various embodiments, in the second mode, each voltage sensor may obtain a voltage value _b of each of the batteries 370-1 and 370-2, and the first multiplexer 510 may obtain the batteries ( 370-1 and 370-2) each voltage value _b can be input. The second comparator 540 may compare the voltage value _b of each of the batteries 370-1 and 370-2 in the second mode, and the maximum voltage value _b of each of the batteries 370-1 and 370-2. A state value corresponding to a battery having a voltage value may be output to the second multiplexer 520 . In the second mode, the second mux 520 may operate such that the state value output from the second comparator 540 is input as a control signal of the first mux 510 . The first mux 510 may transfer a battery voltage value corresponding to a state value output from the second comparator 540 among voltage values of the batteries 370-1 and 370-2 to the charging circuit 330. there is. For example, the second comparator 540 outputs a voltage corresponding to battery 2 370-2 when the voltage value of battery 2 370-2 is the highest among the voltage values _b of each of batteries 370-1 and 370-2. State value ₂ may be output to the second mux 520 . The second mux 520 may transfer the state value ₂ to the first mux 510, and the first mux 510 may transmit the state value ₂ of the voltage values _b of the batteries 370-1 and 370-2. Corresponding The voltage value _b of battery 2 (370-2) may be transferred to the charging circuit 330. The first multiplexer 510 may select the voltage _{value b} of battery 2 370-2 from among the voltage values of each of the batteries 370-1 and 370-2 based on the state value ₂ , and select the selected voltage value _b . It can be transferred to the charging circuit 330.

According to various embodiments, the first circuit 500 may operate in a third mode. The third mode may indicate an operation mode in which the first circuit 500 selects a voltage value of a battery selected by the processor 340 from among given voltage values. In one embodiment, the processor 340 selects a battery that is not fully charged when some of the batteries 370-1 and 370-2 are not fully charged, or the battery 370-1 and 370-2 is not fully charged. After charging is completed, a battery requiring replenishment may be selected from among the batteries 370-1 and 370-2. When a battery that is not fully charged (or a battery requiring replenishment) is selected, the processor 340 provides a third control signal indicating that the first circuit 500 operates in the third mode and a state value corresponding to the selected battery. 2 may be transmitted to the mux 520. Based on the third control signal, the second mux 520 may operate so that a state value corresponding to the battery selected by the processor 340 is input as a control signal of the first mux 510 .

According to various embodiments, in the third mode, each voltage sensor may obtain a voltage value _c of each of the batteries 370-1 and 370-2, and the first multiplexer 510 may obtain the batteries ( 370-1 and 370-2) each voltage value _c can be input. In the third mode, the second mux 520 may transmit a state value corresponding to the battery selected by the processor 340 to the first mux 510 . The first mux 510 may transmit the voltage value c of the battery selected by the processor 340 among the voltage values _c of each of the batteries 370 - 1 to 370 - n to the charging circuit 330 _. For example, the processor 340 may select battery 1 370-1 when battery 1 370-1 is not fully charged, and the third control signal and a state value corresponding to battery 1 370-1. ₁ may be transmitted to the second mux 520 . The second mux 520 may output the state value ₁ received from the processor 340 to the first mux 510 . The first mux 510 may transfer the voltage value of battery 1 370 - 1 corresponding to state value ₁ among the voltage values of batteries 370 - 1 and 370 - 2 to the charging circuit 330 . The first multiplexer 510 may select a voltage value _c of the battery 370-1 from among voltage values of each of the batteries 370-1 and 370-2 based on the state value ₁ , and charge the selected voltage value _c . It can be passed to circuit 330.

6 is a flowchart illustrating an example of a charging operation of an electronic device according to various embodiments.

6 is a flowchart of an example of a charging operation when the electronic device 300 includes the first and second batteries 370-1 and 370-2. The charging operation to be described with reference to FIG. 6 may be applied to the charging operation of the electronic device 300 including three or more batteries.

In operation 601, the electronic device 300 may obtain a voltage value of ₁ for each of battery 1 370-1 and battery 2 370-2. In one embodiment, when the first circuit 500 is connected to the electronic device 300 and the power supply device 310 through wire or wireless, battery 1 370-1 and battery 2 370-2 A voltage value ₁ of each of the battery 1 370-1 and the battery 2 370-2 may be obtained by sensing each voltage.

In operation 603, the electronic device 300 may determine whether the voltage value ₁ of battery 1 370-1 and battery 2 370-2 exceeds a first threshold voltage value. In an embodiment, the electronic device 300 determines whether the voltages of battery 1 370-1 and battery 2 370-2 are chargeable in the CC mode. 1) and battery 2 (370-2), it may be determined whether the voltage value ₁ exceeds the first threshold voltage value. For example, the first circuit 500 (or the processor 340) determines whether the voltage value ₁ of battery 1 370-1 and battery 2 370-2 exceeds a first threshold voltage value. can

When at least one of the voltage values ₁ of battery 1 370-1 and battery 2 370-2 is equal to or less than the first threshold voltage value (operation 603-No), in operation 605, battery 1 ( 370-1) and battery 2 (370-2) may be pre-charged. In one embodiment, the first circuit 500 may operate in the first mode when at least one of voltage values ₁ of battery 1 370-1 and battery 2 370-2 is equal to or less than a first threshold voltage value. and the charging circuit 330 may charge the battery 1 370-1 and the battery 2 370-2 based on the charging current value ₁ (eg, 0.1 C). In the first mode, the first circuit 500 may periodically obtain voltage values of each of the pre-charged battery 1 370-1 and battery 2 370-2, and at each point in time, the battery 1 370-1 The minimum voltage value among voltage values of each of 1) and battery 2 (370-2) may be transmitted to the charging circuit 330. The charging circuit 330 may periodically receive a minimum voltage value from the first circuit 500 .

In operation 607, the electronic device 300 may determine whether a minimum voltage value among voltage values of each of the pre-charged battery 1 370-1 and battery 2 370-2 exceeds a first threshold voltage value. there is. In one embodiment, the first circuit 500 may perform operation 607 .

The electronic device 300, in operation 605, when the minimum voltage value among voltage values of each of the pre-charged battery 1 370-1 and battery 2 370-2 is equal to or less than the first threshold voltage value (operation 607-No). Pre-charging may be performed on battery 1 370-1 and battery 2 370-2.

The electronic device 300 starts when the voltage value ₁ of battery 1 370-1 and battery 2 370-2 exceeds the first threshold voltage value (operation 603-yes) or the pre-charged battery 1 370 -1) and battery 2 (370-2), when the minimum voltage value among the respective voltage values exceeds the first threshold voltage value (operation 607-yes), in operation 609, battery 1 (370-1) and battery 2 ( 370-2) can be charged in CC mode.

In one embodiment, when the voltage value ₁ of each of the battery 1 370-1 and the battery 2 370-2 exceeds the first threshold voltage value (operation 603-yes), the processor 340 The first circuit 500 may be controlled so that the circuit 500 operates in the second mode. In the second mode, the first circuit 500 may transfer the maximum voltage value among voltage values ₁ of each of the battery 1 370 - 1 and the battery 2 370 - 2 to the charging circuit 330 . The charging circuit 330 may determine the charging current value ₂ based on the received maximum voltage value. The charging circuit 330 may request power of the maximum voltage value and the charging current value of ₂ from the power supply device 310 and receive constant current power from the power supply device 310 . The charging circuit 330 may charge battery 1 370-1 and battery 2 370-2 with constant current power.

In another embodiment, when the minimum voltage value among the voltage values of each of the pre-charged battery 1 370-1 and battery 2 370-2 exceeds the first threshold voltage value (operation 607-yes), 1 circuit 500 may change the operation mode from the first mode to the second mode. In the second mode, the first circuit 500 may transfer the maximum voltage value among voltage values of each of the battery 1 370 - 1 and the battery 2 370 - 2 to the charging circuit 330 . The charging circuit 330 may determine a charging current value _a based on the received maximum voltage value, and request power of the maximum voltage value and the charging current value _a from the power supply 310 . The charging circuit 330 may receive constant current power from the power supply device 310 and charge battery 1 370 - 1 and battery 2 370 - 2 with the constant current power.

In operation 611, the electronic device 300 determines whether a maximum voltage value among voltage values of battery 1 370-1 and battery 2 370-2 charged in the CC mode reaches a second threshold voltage value. can do. When the maximum voltage value is less than the second threshold voltage value (operation 611 - No), the electronic device 300 may charge battery 1 370-1 and battery 2 370-2 in the CC mode in operation 609. there is. When the maximum voltage value reaches the second threshold voltage value (operation 611 - Yes), the electronic device 300 charges battery 1 370-1 and battery 2 370-2 in the CV mode in operation 613. can

In an embodiment, the first circuit 500 may periodically obtain voltage values of each of the battery 1 370-1 and the battery 2 370-2 charged in the CC mode. The first circuit 500 may transfer the maximum voltage value among voltage values of each of the battery 1 370 - 1 and the battery 2 370 - 2 to the charging circuit 330 at each point in time. The charging circuit 330 may periodically receive the maximum voltage value from the first circuit 500 and determine whether the maximum voltage value received at each point reaches the second threshold voltage value. When the maximum voltage value received from the first circuit 500 at time point ₁ is less than the second threshold value (operation 611-No), the charging circuit 330 operates the battery 1 370-1 and the battery 2 (operation 609). 370-2) can be charged in CC mode. When the maximum voltage value received from the first circuit 500 reaches the second threshold at time point ₁ (operation 611-yes), the charging circuit 330 operates battery 1 370-1 and battery 2 in operation 613. (370-2) can be charged in CV mode.

In operation 615, the electronic device 300 may determine whether battery 1 370-1 and battery 2 370-2 are fully charged. In one embodiment, the processor 340 may receive the current value of battery 1 (370-1) from the power gauge 410-3 of battery 1 (370-1), and battery 2 (370-2). A current value of battery 2 (370-2) may be received from the power gauge 420-3 of . The processor 340 determines that when the current values of each of the battery 1 370-1 and the battery 2 370-2 are less than the final current value, each of the battery 1 370-1 and the battery 2 370-2 is fully charged. (Act 615-yes). The processor 340 may determine that the battery having a current value equal to or greater than the final current value is not fully charged (operation 615 - No). Processor 340 may cause a fully charged battery to be in replenishment mode. For example, the processor 340 may determine that battery 1 370-1 is fully charged because the current value of battery 1 370-1 is less than the final current value. Processor 340 may cause battery 1 370-1 to be in replenishment mode. The processor 340 may determine that the battery 2 370-2 is not fully charged because the current value of the battery 2 370-2 is equal to or greater than the final current value.

In operation 617, the electronic device 300 may select a battery that is not fully charged. In operation 619, the electronic device 300 may charge the selected battery in the CV mode. In one embodiment, the processor 340 may select a battery that is not fully charged (eg, battery 2 370 - 2 ) as a battery requiring additional charging. When a battery requiring additional charging is selected, the processor 340 may control the first circuit 500 to operate in the third mode. In the third mode, the first circuit 500 may obtain voltage values of battery 1 370-1 and battery 2 370-2, respectively, and may obtain voltage values of battery 1 370-1 and battery 2 370-2. ) The voltage value of the battery selected by the processor 340 among the respective voltage values may be transferred to the charging circuit 330 . The charging circuit 330 may charge the selected battery in the CV mode.

In operation 621, the electronic device 300 may determine whether the selected battery is fully charged. When the selected battery is not fully charged (operation 621 - No), the electronic device 300 may charge the selected battery in the CV mode in operation 619 . When the selected battery is fully charged (operation 621 - Yes), the electronic device 300 may determine that charging is terminated in operation 623 .

In an embodiment, in operation 621, the processor 340 may receive a current value from a power gauge of the selected battery. The processor 340 may determine that the selected battery is not fully charged if the current value of the selected battery is equal to or greater than the final current value (operation 621-No), and in operation 619, the charging circuit 330 stores the selected battery in the CV mode. can be charged If the current value of the selected battery is less than the final current value, the processor 340 may determine that the selected battery is fully charged (operation 621 - Yes). Processor 340 may place the selected battery in a replenishment mode. The processor 340 determines that battery 1 370 - 1 and battery 2 370 - 2 are fully charged, and thus, in operation 623 , it may be determined that charging is terminated.

In operation 625, the electronic device 300 may determine whether there is a battery that requires replenishment among battery 1 370-1 and battery 2 370-2. In one embodiment, the processor 340 may receive the voltage value of battery 1 (370-1) from the power gauge 410-3 of battery 1 (370-1), and battery 2 (370-2). The voltage value of the battery 2 (370-2) may be received from the power gauge 420-3. The processor 340 may determine whether the voltage values of each of battery 1 370-1 and battery 2 370-2 are equal to or less than a third threshold voltage value. The processor 340 may determine, for example, that battery 1 370-1 does not require supplementary power when the voltage value of battery 1 370-1 exceeds the third threshold voltage value, and the second battery ( When the voltage value of 370-1) is less than or equal to the third threshold voltage value, battery 2 370-2 may determine that supplementary power is required.

When there is a battery requiring replenishment (operation 625 - Yes), the electronic device 300 may select a battery requiring replenishment in operation 627 . When a battery requiring replenishment is selected, the electronic device 300 may perform operations 619 to 623. In one embodiment, the processor 340 may control the first circuit 500 to operate in the third mode when a battery requiring replenishment is selected. The charging circuit 330 may charge a battery requiring replenishment in the CV mode. In the third mode, the first circuit 500 may obtain voltage values of battery 1 370-1 and battery 2 370-2, respectively, and may obtain voltage values of battery 1 370-1 and battery 2 370-2. ), a voltage value of a battery requiring replenishment may be transmitted to the charging circuit 330 . The charging circuit 330 may monitor a voltage value of a battery requiring replenishment.

In an embodiment, the electronic device 300 may determine that both battery 1 370 - 1 and battery 2 370 - 2 require replenishment in operation 625 . When it is determined that both battery 1 (370-1) and battery 2 (370-2) require replenishment, the electronic device 300 performs operations 613, 615, and 623, or operations 613, 615, 617, and 617. Operations 619, 621, and 623 may be performed. For example, in operation 625, when it is determined that both battery 1 370-1 and battery 2 370-2 require supplementary power, the processor 340 causes the first circuit 500 to operate in the second mode in a first mode. Circuit 500 can be controlled. In operation 613, the charging circuit 330 may charge battery 1 370-1 and battery 2 370-2 in the CV mode. In the second mode, the first circuit 500 may obtain voltage values of each of battery 1 370-1 and battery 2 370-2 charged in the CV mode, and may obtain voltage values of battery 1 370-1 and battery 1 370-1. The maximum voltage value among the voltage values of each of the 2 (370-2) may be transmitted to the charging circuit 330. The charging circuit 330 may monitor the maximum voltage value. In operation 615, the processor 340 may determine whether battery 1 370-1 and battery 2 370-2 are fully charged, and battery 1 370-1 and battery 2 370-2 are fully charged. When fully charged (operation 615 - Yes), it may be determined in operation 623 that charging of battery 1 (370-1) and battery 2 (370-2) is completed.

The embodiments described through FIGS. 1 to 5 may be applied to the embodiments described through FIG. 6 .

7 is a flowchart for explaining an example of a method of operating an electronic device 300 according to various embodiments.

An operating method to be described with reference to FIG. 7 may be performed by the processor 340 .

In operation 710, the processor 340 determines, when the first voltage value of each of the batteries 370-1 to 370-n obtained by the first circuits 350 and 500 exceeds the first threshold voltage value, The first circuit 350 or 500 may control the first circuit 350 or 500 to transfer the maximum voltage value among the first voltage values of each of the batteries 370-1 to 370-n to the charging circuit 330. there is.

The charging circuit 330 may determine a first charging current value (eg, the charging current value ₂ described with reference to FIG. 3 ) based on the maximum voltage value, and the batteries 370 - 1 to 370 - 1 to 200 based on the first charging current value. 370-n) can be charged in CC mode. The charging circuit 330 is configured to charge the batteries 370-1 to 370-n in the CV mode when the maximum voltage value among voltage values of each of the batteries 370-1 to 370-n charged in the CC mode is greater than or equal to the second threshold voltage value. 370-n) can be charged.

In operation 720, the processor 340 may determine whether the batteries 370-1 to 370-n are fully charged. In one embodiment, the processor 340 may determine whether a current value of each of the batteries 370-1 to 370-n charged in the CV mode is less than a terminal current value. The processor 340 may determine that a battery having a current value less than the final current value is fully charged, and may determine that a battery having a current value equal to or greater than the final current value is not fully charged.

When the batteries 370-1 to 370-n are fully charged (operation 720-yes), the processor 340 determines that the charging of the batteries 370-1 to 370-n is terminated in operation 760. can judge

When some of the batteries 370 - 1 to 370 - n are not fully charged (operation 720 - No), the processor 340 may select one of the batteries that are not fully charged in operation 730 . The charging circuit 330 may charge some batteries that are not fully charged in the CV mode.

In operation 740, the processor 340 determines whether the first circuit 350 or 500 among the second voltage values of each of the batteries 370-1 to 370-n obtained by the first circuit 350 or 500 is selected in operation 730. The first circuits 350 and 500 may be controlled to transmit the second voltage value of the battery selected in , to the charging circuit 330 .

At operation 750, the processor 340 may determine whether some of the batteries being charged in the CV mode are fully charged.

When some of the batteries charged in the CV mode are fully charged (Operation 750 - Yes), the processor 340 may determine that charging of the batteries 370-1 to 370-n is terminated in Operation 760. . In one embodiment, when some batteries being charged in the CV mode are not fully charged (operation 750 - No), the processor 340 may repeat operation 750 .

According to various embodiments, the first circuits 350 and 500 adjust the third voltage value of each of the batteries 370-1 to 370-n after charging of the batteries 370-1 to 370-n is finished. can be obtained After the charging of the batteries 370-1 to 370-n is finished, the processor 340 may determine whether any of the batteries 370-1 to 370-n requires supplementary power (eg, the operation of FIG. 6 ). 625). When there is a battery requiring supplemental power among the batteries 370-1 to 370-n, the processor 340 may select a battery requiring supplemental power (eg, operation 627 of FIG. 6 ). The processor 340 causes the first circuits 350 and 500 to transfer the third voltage value of the selected battery among the third voltage values of each of the batteries 370-1 to 370-n to the charging circuit 330. Circuits 350 and 500 can be controlled.

The embodiments described through FIGS. 1 to 6 may be applied to the embodiments described through FIG. 7 .

According to various embodiments, the electronic device 300 includes a plurality of batteries 370-1 to 370-n, a charging circuit 330 for charging the batteries 370-1 to 370-n, and the batteries 370. -1 to 370-n) A first circuit for obtaining a voltage value of each of the batteries 370-1 to 370-n by sensing the voltage and transferring one of the obtained voltage values to the charging circuit 330 (350, 500), and a processor 340 controlling the first circuit (350, 500).

According to various embodiments, the processor 340 may perform a first voltage value (eg, the voltage value described with reference to FIG. 3 ) of each of the batteries 370-1 to 370-n obtained by the first circuits 350 and 500. ₁ ) exceeds the first threshold voltage value, the first circuits 350 and 500 transfer the maximum voltage value among the first voltage values of each of the batteries 370-1 to 370-n to the charging circuit 330 It is possible to control the first circuits 350 and 500 to do so, it is possible to determine whether or not the batteries 370-1 to 370-n are fully charged, and some of the batteries 370-1 to 370-n When is not fully charged, one of the batteries that are not fully charged may be selected, and among the second voltage values of the batteries 370-1 to 370-n obtained by the first circuits 350 and 500, the first voltage The first circuit 350 or 500 may control the first circuit 350 or 500 to transmit the second voltage value of the selected battery to the charging circuit 330 .

According to various embodiments, the charging circuit 330 may determine a first charging current value (eg, the charging current value ₂ described with reference to FIG. 3 ) based on the maximum voltage value, and based on the determined first charging current value. Batteries 370-1 to 370-n may be charged in the first charging mode.

According to various embodiments, the charging circuit 330 periodically determines the maximum voltage value among voltage values of each of the batteries 370-1 to 370-n charged in the first charging mode from the first circuit 350 or 500. and when the maximum voltage value received at the first time point is greater than or equal to the second threshold voltage value, the batteries 370-1 to 370-n may be charged in the second charging mode.

According to various embodiments, the first charging mode may indicate a constant current charging mode, and the second charging mode may indicate a constant voltage charging mode.

According to various embodiments, the processor 340 may obtain state information of a battery that is not fully charged, and select one of the batteries that are not fully charged using each obtained state information.

According to various embodiments, the first circuit 350 or 500 receives the third voltage value of each of the batteries 370-1 to 370-n in the first mode, and receives the first voltage value of each of the batteries 370-1 to 370-n in the second mode. The first multiplexer 510 receives input and receives each second voltage value in the third mode, compares each third voltage value in the first mode, and supplies the first battery having the minimum voltage value among the third voltage values A first comparator 530 outputting a corresponding first state value, comparing each first voltage value in the second mode, and a second state value corresponding to a second battery having a maximum voltage value among each first voltage value The second comparator 540 outputs , and receives a first state value from the first comparator 530 in a first mode, receives a second state value from the second comparator 540 in a second mode, and A second mux that receives a third state value corresponding to a battery selected in three modes from the processor 340 and outputs each of the first to third state values to the first mux 510 in each of the first to third modes. (520).

According to various embodiments, the first mux 510 may transfer the third voltage value of the first battery to the charging circuit 330 based on the first state value in the first mode, and the second state value in the second mode. Based on the value, the first voltage value of the second battery may be transferred to the charging circuit 330 , and the second voltage value of the battery selected in the third mode may be transferred to the charging circuit 330 .

According to various embodiments, the first circuit 350 or 500 determines whether a first voltage value of each of the batteries 370-1 to 370-n exceeds a first threshold voltage value, and determines whether the batteries 370 -1 to 370-n) When at least one of the first voltage values is equal to or less than the first threshold voltage value, the first control signal may be transmitted to the second multiplexer 520 to operate in the first mode.

According to various embodiments, the processor 340 operates the first circuit 350, 500 in the second mode when the first voltage value of each of the batteries 370-1 to 370-n exceeds the first threshold voltage value. The second control signal may be transmitted to the second mux 520 to operate in the second mux 520, and when one of the batteries that is not fully charged is selected, the first circuit 350 or 500 may generate a third control signal to operate in the third mode. 2 may be transmitted to the mux 520.

According to various embodiments of the present disclosure, the first circuits 350 and 500 adjust the fourth voltage value of each of the batteries 370-1 to 370-n after charging of the batteries 370-1 to 370-n is terminated. can be obtained

According to various embodiments, the processor 340 may select a battery requiring replenishment from among the batteries 370-1 to 370-n after charging of the batteries 370-1 to 370-n is terminated, and the Controls the first circuits 350 and 500 to transfer the fourth voltage value of the battery requiring replenishment among the fourth voltage values of each of the batteries 370-1 to 370-n to the first circuits 350 and 500 can do.

According to various embodiments, when one or more of the first voltage values of each of the batteries 370-1 to 370-n is less than or equal to the first threshold voltage value, the charging circuit 330 generates a second charging current value (eg, FIG. The batteries 370 - 1 to 370 - n may be charged based on the charging current value ₁ ) described through 3 .

According to various embodiments, the first circuit 350 or 500 may select a minimum voltage value among voltage values of each of the batteries 370-1 to 370-n to be charged based on the second charging current value, and select It is possible to determine whether the minimum voltage value exceeds the first threshold voltage value, and if the selected minimum voltage value exceeds the first threshold voltage value, in an operation mode (eg, the first mode) for selecting the minimum voltage value An operation mode (eg, a second mode) in which a maximum voltage value among voltage values of each of the batteries 370-1 to 370-n is selected may be changed.

According to various embodiments, the electronic device 300 includes batteries 370-1 to 370-n, a charging circuit 330 for charging the batteries 370-1 to 370-n, and batteries in a first mode. (370-1 to 370-n) transfers the minimum voltage value among the first voltage values sensed to the charging circuit 330, and each of the batteries 370-1 to 370-n in the second mode The maximum voltage value among the second voltage values sensed by the voltage of is transferred to the charging circuit 330, and each third voltage value sensed by the voltage of each of the batteries 370-1 to 370-n in the third mode. Among the first circuits 350 and 500 for transferring the third voltage value of the battery selected by the processor 340 to the charging circuit 330, and the batteries 370- obtained by the first circuits 350 and 500 1 to 370-n) Control the first circuits 350 and 500 so that the first circuits 350 and 500 operate in the second mode when the respective initial voltage values exceed the first threshold voltage value, and the batteries It is determined whether the batteries 370-1 to 370-n are fully charged, and if some of the batteries 370-1 to 370-n are not fully charged, one of the batteries that are not fully charged is selected and a first The circuits 350 and 500 may include a processor 340 that controls the first circuits 350 and 500 to operate in the third mode.

According to various embodiments, the first circuits 350 and 500 may operate in the first mode when at least one of the initial voltage values is equal to or less than the first threshold voltage value.

According to various embodiments, when the charging circuit 330 receives the maximum voltage value from the first circuit 350 or 500 operating in the second mode, the first charging current value (eg, FIG. The charging current value ₂ ) described through 3 may be determined, and the batteries 370-1 to 370-n may be charged in the first charging mode based on the determined first charging current value.

According to various embodiments, the charging circuit 330 periodically determines the maximum voltage value among voltage values of each of the batteries 370-1 to 370-n charged in the first charging mode from the first circuit 350 or 500. and when the maximum voltage value received at the first time point is greater than or equal to the second threshold voltage value, the batteries 370-1 to 370-n may be charged in the second charging mode.

According to various embodiments, the first charging mode may represent a constant current charging mode, and the second charging mode may represent a constant voltage charging mode.

According to various embodiments, the processor 340 may obtain state information of a battery that is not fully charged, and select one of the batteries that are not fully charged using each obtained state information.

According to various embodiments, the first circuits 350 and 500 receive each first voltage value in the first mode, each second voltage value in the second mode, and each third voltage value in the third mode. The first multiplexer 510 receiving , a first comparator that compares each first voltage value in the first mode and outputs a first state value corresponding to a first battery having a minimum voltage value among the first voltage values. (530), a second comparator 540 that compares each second voltage value in the second mode and outputs a second state value corresponding to a second battery having a maximum voltage value among each second voltage value; and A first state value is received from the first comparator 530 in 1 mode, a second state value is received from the second comparator 540 in mode 2, and a third state value corresponding to the selected battery is received in mode 3. may include a second mux 520 that receives from the processor 340 and outputs each of the first to third state values to the first mux 510 in each of the first to third modes.

According to various embodiments, the first mux 510 may transfer the first voltage value of the first battery to the charging circuit 330 based on the first state value in the first mode, and may transmit the second voltage value in the second mode. The second voltage value of the second battery may be transmitted to the charging circuit 330 based on the state value, and the third voltage value of the battery selected based on the third state value in the third mode may be transmitted to the charging circuit 330. can

According to various embodiments, the first circuit 350 or 500 may transmit a first control signal to the second multiplexer to operate in the first mode when at least one of the initial voltage values is less than or equal to the first threshold voltage value.

According to various embodiments, when each initial voltage value exceeds the first threshold voltage value, the processor 340 transmits the second control signal to the second multiplexer so that the first circuits 350 and 500 operate in the second mode. 520), and when one of the batteries that are not fully charged is selected, a third control signal may be transmitted to the second mux 520 so that the first circuits 350 and 500 operate in the third mode.

According to various embodiments of the present disclosure, the processor 340 may determine whether any of the batteries 370-1 to 370-n requires replenishment after charging of the batteries 370-1 to 370-n is terminated, When there is a battery requiring supplemental power, the first circuit 350 or 500 determines the battery requiring supplemental power among the fourth voltage values obtained by sensing the voltages of each of the batteries 370-1 to 370-n in the third mode. The first circuits 350 and 500 may be controlled to transfer the 4 voltage values to the charging circuit 330 .

According to various embodiments, the operating method of the electronic device 300 is such that the first voltage value of each of the batteries 370-1 to 370-n obtained by the first circuits 350 and 500 is a first threshold voltage value. If it exceeds, the first circuit 350, 500 transfers the maximum voltage value among the first voltage values of each of the batteries 370-1 to 370-n to the charging circuit 330, 500), determining whether the batteries 370-1 to 370-n are fully charged, and if some of the batteries 370-1 to 370-n are not fully charged, the batteries An operation of selecting one of the batteries 370-1 to 370-n that are not fully charged, and a second battery of each of the batteries 370-1 to 370-n obtained by the first circuits 350 and 500. An operation of controlling the first circuits 350 and 500 to transfer the second voltage value of the battery selected by the first circuits 350 and 500 among the voltage values to the charging circuit 330 may be included.

300: electronic device
310: power supply
320: OVP IC
330: charging circuit
340: processor
350: first circuit
360-1 to 360-n: limiter circuits
370-1 to 370-n: batteries

Claims (20)

In electronic devices,
a plurality of batteries;
a charging circuit for charging the batteries;
a first circuit for obtaining a voltage value of each of the batteries by sensing the voltage of each of the batteries, and transmitting one of the obtained voltage values to the charging circuit; and
Processor controlling the first circuit
including,
the processor,
When the first voltage value of each of the batteries obtained by the first circuit exceeds a first threshold voltage value, the first circuit sets the maximum voltage value among the first voltage values of each of the batteries to the charging circuit. control the first circuit to transmit to, determine whether the batteries are fully charged, if some of the batteries are not fully charged, select one of the batteries that are not fully charged; Among the second voltage values of each of the batteries obtained by controlling the first circuit so that the first circuit transfers a second voltage value of the selected battery to the charging circuit;
The charging circuit,
determining a first charging current value based on the maximum voltage value and charging the batteries in a first charging mode based on the determined first charging current value;
electronic device.
According to claim 1,
The charging circuit,
A maximum voltage value among voltage values of each of the batteries charged in the first charging mode is periodically received from the first circuit, and when the maximum voltage value received at a first time point is greater than or equal to a second threshold voltage value, a second charging the batteries in a charging mode;
electronic device.
According to claim 2,
The first charging mode represents a constant current charging mode, and the second charging mode represents a constant voltage charging mode.
electronic device.
According to claim 1,
the processor,
Obtaining state information of the battery that is not fully charged, and selecting one of the batteries that is not fully charged using each state information obtained.
electronic device.
According to claim 1,
The first circuit,
a first mux that receives a third voltage value of each of the batteries in a first mode, receives each first voltage value in a second mode, and receives each second voltage value in a third mode;
a first comparator which compares each of the third voltage values in the first mode and outputs a first state value corresponding to a first battery having a minimum voltage value among the respective third voltage values;
a second comparator that compares each of the first voltage values in the second mode and outputs a second state value corresponding to a second battery having a maximum voltage value among each of the first voltage values; and
The first state value is received from the first comparator in the first mode, the second state value is received from the second comparator in the second mode, and the first state value corresponding to the selected battery is received in the third mode. A second mux that receives three state values from the processor and outputs each of the first to third state values to the first mux in each of the first to third modes.
including,
electronic device.
According to claim 5,
The first mux,
The third voltage value of the first battery is transmitted to the charging circuit based on the first state value in the first mode, and the voltage value of the second battery is transmitted based on the second state value in the second mode. Delivering a first voltage value to the charging circuit and transmitting the second voltage value of the selected battery in the third mode to the charging circuit.
electronic device.
According to claim 5,
The first circuit,
It is determined whether the first voltage value of each of the batteries exceeds the first threshold voltage value, and when one or more of the first voltage values of each of the batteries is less than or equal to the first threshold voltage value, the first mode Transmitting a first control signal to the second mux to operate in
electronic device.
According to claim 5,
the processor,
When the first voltage value of each of the batteries exceeds the first threshold voltage value, a second control signal is transmitted to the second MUX so that the first circuit operates in the second mode, and the battery is not fully charged. Transferring a third control signal to the second mux so that the first circuit operates in the third mode when one of the unavailable batteries is selected.
electronic device.
According to claim 1,
The first circuit obtains a fourth voltage value of each of the batteries after charging of the batteries is finished;
After the charging is completed, the processor checks whether there is a battery requiring replenishment power among the batteries, and if there is a battery requiring replenishment power, the first circuit determines whether the fourth voltage value of each of the batteries requires supplemental power. Controlling the first circuit to transfer a fourth voltage value of the battery to the charging circuit,
electronic device.
According to claim 1,
The charging circuit charges the batteries based on a second charging current value when one or more of the first voltage values of each of the batteries is equal to or less than the first threshold voltage value,
The first circuit selects a minimum voltage value among voltage values of each of the batteries to be charged based on the second charging current value, and determines whether the selected minimum voltage value exceeds the first threshold voltage value; , When the selected minimum voltage value exceeds the first threshold voltage value, changing from an operation mode of selecting the minimum voltage value to an operation mode of selecting the maximum voltage value among the voltage values of each of the batteries,
electronic device.
In electronic devices,
a plurality of batteries;
a charging circuit for charging the batteries;
The minimum voltage value among the first voltage values sensed in the first mode is transferred to the charging circuit, and the maximum voltage value among the second voltage values sensed in the second mode is transferred to the charging circuit. a first circuit that transmits a voltage value to the charging circuit and transmits a third voltage value of a battery selected by a processor among third voltage values obtained by sensing voltages of each of the batteries in a third mode to the charging circuit; and
Control the first circuit so that the first circuit operates in the second mode when the initial voltage value of each of the batteries obtained by the first circuit exceeds a first threshold voltage value, and the batteries are fully A processor that determines whether the batteries are charged, and if some of the batteries are not fully charged, selects one of the batteries that are not fully charged and controls the first circuit to operate in the third mode.
including,
The first circuit operates in the first mode when at least one of the initial voltage values is less than or equal to the first threshold voltage value.
electronic device.
According to claim 11,
The charging circuit,
When the maximum voltage value is received from the first circuit operating in the second mode, a first charging current value is determined based on the maximum voltage value, and a first charging current value is determined based on the determined first charging current value. charging the batteries in mode,
electronic device.
According to claim 11,
The charging circuit,
A maximum voltage value among the voltage values of each of the batteries charged in the first charging mode is periodically received from the first circuit, and when the maximum voltage value received at a first time point is equal to or greater than a second threshold voltage value, a second charging operation is performed. charging the batteries in mode,
electronic device.
According to claim 13,
The first charging mode represents a constant current charging mode, and the second charging mode represents a constant voltage charging mode.
electronic device.
According to claim 11,
the processor,
Obtaining state information of the battery that is not fully charged, and selecting one of the batteries that is not fully charged using each state information obtained.
electronic device.
According to claim 11,
The first circuit,
a first mux that receives each of the first voltage values in the first mode, receives each of the second voltage values in the second mode, and receives each of the third voltage values in the third mode;
a first comparator which compares the respective first voltage values in the first mode and outputs a first state value corresponding to a first battery having the minimum voltage value among the respective first voltage values;
a second comparator which compares each of the second voltage values in the second mode and outputs a second state value corresponding to a second battery having the maximum voltage value among the respective second voltage values; and
The first state value is received from the first comparator in the first mode, the second state value is received from the second comparator in the second mode, and the first state value corresponding to the selected battery is received in the third mode. A second mux that receives three state values from the processor and outputs each of the first to third state values to the first mux in each of the first to third modes.
including,
electronic device.
According to claim 16,
The first mux,
The first voltage value of the first battery is transferred to the charging circuit based on the first state value in the first mode, and the voltage value of the second battery is transmitted based on the second state value in the second mode. Delivering a second voltage value to the charging circuit, and transmitting the third voltage value of the selected battery to the charging circuit based on the third state value in the third mode.
electronic device.
According to claim 16,
The first circuit transmits a first control signal to the second multiplexer to operate in the first mode when at least one of the initial voltage values is equal to or less than the first threshold voltage value;
The processor transmits a second control signal to the second MUX so that the first circuit operates in the second mode when each initial voltage value exceeds the first threshold voltage value, and transmitting a third control signal to the second mux so that the first circuit operates in the third mode when one of the batteries is selected;
electronic device.
According to claim 11,
the processor,
After the charging of the batteries is finished, it is determined whether any of the batteries need to be replenished, and if there is a battery that needs to be supplemented, the first circuit senses the voltage of each of the batteries in the third mode. Controlling the first circuit to transfer a fourth voltage value of the battery requiring replenishment among the fourth voltage values to the charging circuit,
electronic device.
In the operating method of the electronic device,
When the first voltage value of each of the batteries obtained by the first circuit exceeds the first threshold voltage value, the first circuit transfers the maximum voltage value among the first voltage values of each of the batteries to the charging circuit. controlling the first circuit to do so;
determining whether the batteries are fully charged;
when some of the batteries are not fully charged, selecting one of the batteries that is not fully charged; and
Controlling the first circuit so that the first circuit transfers the second voltage value of the selected battery among the second voltage values of each of the batteries obtained by the first circuit to the charging circuit.
including,
Methods of operating electronic devices.

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