Electronic device with voltage divider capable of adaptively changing voltage division ratio

Abstract

An electronic device including a voltage divider that adaptively changes a voltage division ratio is provided. The electronic device includes: a rechargeable battery; a connector configured to connect the electronic device to an external electronic device; a voltage divider including a plurality of capacitors and a plurality of switches, the plurality of switches being used to switch an electrical path between each of the plurality of capacitors and the rechargeable battery, wherein the voltage divider is configured to provide three or more voltage division ratios; and a processor operably coupled to the voltage divider and the connector. The processor is configured to: receive an indicator indicating a first voltage of a first electric power from an external electronic device; select a voltage division ratio from three or more voltage division ratios based at least in part on the indicator; and control the plurality of switches based on the selected voltage division ratio, and wherein the voltage divider is configured to: charge the rechargeable battery with a second voltage by dividing the first voltage according to the selected voltage division ratio.

Description

Technical Field

[0001] Certain embodiments described below generally relate to direct charging of a battery. More specifically, certain embodiments described below relate to an electronic device including a voltage divider that adaptively changes a voltage division ratio. Background Art

[0002] For portability, electronic devices such as smart phones, smart watches, or tablet personal computers (PCs) may include rechargeable batteries.

[0003] The above information is provided as background information only to assist with an understanding of the present disclosure. No determination has been made, and no assertion is made, as to whether any of the above may be applicable as prior art to the present disclosure. Summary of the invention

[0004] Technical issues

[0005] When an electronic device is carried, the rechargeable battery of the electronic device is discharged. Therefore, the rechargeable battery may have to be charged frequently, such as once a day. During the charging of the rechargeable battery, the device may not be carried. Therefore, it is beneficial to reduce the time required to charge the battery.

[0006] Solution to the problem

[0007] An electronic device including a voltage divider that adaptively changes a voltage division ratio is provided. According to some embodiments, the electronic device includes: a rechargeable battery; a connector configured to connect the electronic device to an external electronic device; a voltage divider including a plurality of capacitors and a plurality of switches for switching an electrical path between each of the plurality of capacitors and the rechargeable battery, wherein the voltage divider is configured to provide three or more voltage division ratios; and a processor operably coupled to the voltage divider and the connector. The processor is configured to: receive an indicator indicating a first voltage of a first power from the external electronic device; select a voltage division ratio from the three or more voltage division ratios based at least in part on the indicator; and control the plurality of switches based on the selected voltage division ratio, and wherein the voltage divider is configured to: charge the rechargeable battery with a second voltage by dividing the first voltage according to the selected voltage division ratio.

[0008] Beneficial effects of the present invention

[0009] An electronic device of one or more embodiments can perform direct charging of a rechargeable battery of the electronic device by adaptively changing a voltage division ratio through a voltage division circuit, wherein the voltage division circuit includes multiple capacitors for presenting three or more voltage division ratios and multiple switches for switching an electrical path between each of the multiple capacitors and the rechargeable battery.

[0010] Effects obtainable from one or more embodiments of the present disclosure are not limited to the above-mentioned effects, and other effects not mentioned will be apparently understood by a person of ordinary skill in the art to which the present disclosure pertains from the following statements. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is a block diagram of an electronic device in a network environment according to some embodiments.

[0012] Figure 2 is a block diagram of a power management module and a battery according to certain embodiments.

[0013] Figure 3A is a simplified block diagram of an electronic device in accordance with one or more embodiments.

[0014] Figure 3B is a simplified block diagram of an electronic device and external electronic devices according to one or more embodiments.

[0015] Figure 4 An example of a voltage divider according to an embodiment is shown.

[0016] FIG. 5A to FIG. 5B An example of a connection structure of a voltage divider that performs 3-to-1 voltage division according to an embodiment is shown.

[0017] Figure 5C yes FIG. 5A to FIG. 5B The timing diagram of the voltage divider is shown.

[0018] FIG. 6A to FIG. 6B An example of a connection structure of a voltage divider that performs 2-to-1 voltage division according to an embodiment is shown.

[0019] Figure 6C yes FIG. 6A to FIG. 6B The timing diagram of the voltage divider is shown.

[0020] FIG. 7A to FIG. 7B Another example of a connection structure of a voltage divider that performs 2-to-1 voltage division according to an embodiment is shown.

[0021] Figure 7C yes FIG. 7A to FIG. 7B The timing diagram of the voltage divider is shown.

[0022] Figure 8 An example of a connection structure of a voltage divider that performs 1:1 voltage division according to an embodiment is shown.

[0023] Fig. 9 Another example of a voltage divider according to an embodiment is shown.

[0024] FIG. 10A to FIG. 10BAnother example of a connection structure of a voltage divider that performs 3-to-1 voltage division according to an embodiment is shown.

[0025] Fig. 10C yes FIG. 10A to FIG. 10B The timing diagram of the voltage divider is shown.

[0026] FIG. 11A to FIG. 11B Another example of a connection structure of a voltage divider that performs 2-to-1 voltage division according to an embodiment is shown.

[0027] Fig. 11C yes FIG. 11A to FIG. 11B The timing diagram of the voltage divider is shown.

[0028] Fig.12 is a flowchart illustrating an operation of performing direct charging by adaptively performing voltage division through a voltage divider according to one or more embodiments. DETAILED DESCRIPTION

[0029] A charging scheme that performs constant voltage and constant current control of a rechargeable battery in a charging device (e.g., a travel adapter (TA) or a power adapter (PA)) can be used for high-speed charging of a rechargeable battery of a portable electronic device. On the other hand, the output voltage (or output current) of the charging device may be different depending on the setting of the charging device. Therefore, a voltage divider that adaptively changes the voltage divider ratio for direct charging is ideal in a portable electronic device.

[0030] The technical solutions that this document seeks to implement are not limited to the above-mentioned technical solutions, and a person of ordinary skill in the art will be able to clearly understand other technical solutions not mentioned above from the following statements.

[0031] Figure 1 An electronic device is described in which certain embodiments of the present disclosure may be practiced. Specifically, the electronic device 101 may include a battery 189 to enable portability.

[0032] Figure 1 1 is a block diagram illustrating an electronic device 101 in a network environment 100 according to various embodiments. Figure 1, the electronic device 101 in the network environment 100 may communicate with the electronic device 102 via the first network 198 (e.g., a short-range wireless communication network), or communicate with the electronic device 104 or the server 108 via the second network 199 (e.g., a long-range wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 via the server 108. According to an embodiment, the electronic device 101 may include a processor 120, a memory 130, an input device 150, a sound output device 155, a display device 160, an audio module 170, a sensor module 176, an interface 177, a haptic module 179, a camera module 180, a power management module 188, a battery 189, a communication module 190, a user identification module (SIM) 196, or an antenna module 197. In some embodiments, at least one of the components (e.g., the display device 160 or the camera module 180) may be omitted from the electronic device 101, or one or more other components may be added to the electronic device 101. In some embodiments, some of the components may be implemented as a single integrated circuit.For example, the sensor module 176 (eg, a fingerprint sensor, an iris sensor, or an illumination sensor) may be implemented to be embedded in the display device 160 (eg, a display).

[0033] The processor 120 may run, for example, software (e.g., program 140) to control at least one other component (e.g., hardware component or software component) of the electronic device 101 connected to the processor 120, and may perform various data processing or calculations. According to one embodiment, as at least part of the data processing or calculation, the processor 120 may load a command or data received from another component (e.g., sensor module 176 or communication module 190) into the volatile memory 132, process the command or data stored in the volatile memory 132, and store the resultant data in the non-volatile memory 134. According to an embodiment, the processor 120 may include a main processor 121 (e.g., a central processing unit (CPU) or an application processor (AP)) and an auxiliary processor 123 (e.g., a graphics processing unit (GPU), an image signal processor (ISP), a sensor hub processor, or a communication processor (CP)) that is independent of or combined with the main processor 121 in operation. Additionally or alternatively, the auxiliary processor 123 may be adapted to consume less power than the main processor 121, or adapted to be specifically used for a specified function. The auxiliary processor 123 may be implemented separately from the main processor 121 , or as part of the main processor 121 .

[0034] The term "processor" should be understood to refer to both the singular and the plural contexts.

[0035] When the main processor 121 is in an inactive (e.g., sleep) state, the auxiliary processor 123 may control at least some of the functions or states related to at least one component (e.g., display device 160, sensor module 176, or communication module 190) among the components of the electronic device 101 (not the main processor 121), or when the main processor 121 is in an active state (e.g., running an application), the auxiliary processor 123 may control at least some of the functions or states related to at least one component (e.g., display device 160, sensor module 176, or communication module 190) among the components of the electronic device 101 together with the main processor 121. According to an embodiment, the auxiliary processor 123 (e.g., an image signal processor or a communication processor) may be implemented as part of another component (e.g., camera module 180 or communication module 190) that is functionally related to the auxiliary processor 123.

[0036] The memory 130 may store various data used by at least one component of the electronic device 101 (e.g., the processor 120 or the sensor module 176). The various data may include, for example, input data or output data of software (e.g., the program 140) and commands related thereto. The memory 130 may include a volatile memory 132 or a nonvolatile memory 134.

[0037] The program 140 may be stored as software in the memory 130 , and may include, for example, an operating system (OS) 142 , middleware 144 , or applications 146 .

[0038] The input device 150 may receive commands or data from outside the electronic device 101 (e.g., a user) to be used by other components of the electronic device 101 (e.g., the processor 120). The input device 150 may include, for example, a microphone, a mouse, a keyboard, or a digital pen (e.g., a stylus).

[0039] The sound output device 155 can output a sound signal to the outside of the electronic device 101. The sound output device 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as playing multimedia or playing records, and the receiver can be used for incoming calls. Depending on the embodiment, the receiver can be implemented as a separate part from the speaker, or as a part of the speaker.

[0040] The display device 160 may visually provide information to the outside of the electronic device 101 (e.g., a user). The display device 160 may include, for example, a display, a holographic device, or a projector, and a control circuit for controlling a corresponding one of the display, the holographic device, and the projector. According to an embodiment, the display device 160 may include a touch circuit adapted to detect a touch or a sensor circuit (e.g., a pressure sensor) adapted to measure the strength of a force caused by a touch.

[0041] The audio module 170 may convert sound into an electrical signal, or vice versa. According to an embodiment, the audio module 170 may obtain sound via the input device 150, or output sound via the sound output device 155 or an earphone of an external electronic device (e.g., electronic device 102) directly (e.g., wired) or wirelessly connected to the electronic device 101.

[0042] The sensor module 176 may detect an operating state (e.g., power or temperature) of the electronic device 101 or an environmental state (e.g., a state of a user) outside the electronic device 101, and then generate an electrical signal or data value corresponding to the detected state. According to an embodiment, the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illumination sensor.

[0043] The interface 177 may support one or more specific protocols to be used to connect the electronic device 101 directly (e.g., wired) or wirelessly to an external electronic device (e.g., the electronic device 102). According to an embodiment, the interface 177 may include, for example, a high-definition multimedia interface (HDMI), a universal serial bus (USB) interface, a secure digital (SD) card interface, or an audio interface.

[0044] The connection end 178 may include a connector, wherein the electronic device 101 can be physically connected to an external electronic device (e.g., the electronic device 102) via the connector. According to an embodiment, the connection end 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0045] The haptic module 179 may convert the electrical signal into mechanical stimulation (eg, vibration or motion) or electrical stimulation that can be recognized by the user via his sense of touch or kinesthetic sense. According to an embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulator.

[0046] The camera module 180 may capture still images or moving images. According to an embodiment, the camera module 180 may include one or more lenses, an image sensor, an image signal processor, or a flash.

[0047] The power management module 188 may manage power supply to the electronic device 101. According to an embodiment, the power management module 188 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

[0048] The battery 189 may power at least one component of the electronic device 101. According to an embodiment, the battery 189 may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0049] The communication module 190 may support establishing a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (e.g., electronic device 102, electronic device 104, or server 108), and perform communication via the established communication channel. The communication module 190 may include one or more communication processors capable of operating independently from the processor 120 (e.g., an application processor (AP)) and supporting direct (e.g., wired) communication or wireless communication. According to an embodiment, the communication module 190 may include a wireless communication module 192 (e.g., 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 (e.g., a local area network (LAN) communication module or a power line communication (PLC) module). A corresponding one of these communication modules can communicate with an external electronic device via a first network 198 (e.g., a short-range communication network such as Bluetooth, Wireless Fidelity (Wi-Fi) Direct, or Infrared Data Association (IrDA)) or a second network 199 (e.g., a long-range communication network such as a cellular network, the Internet, or a computer network (e.g., a LAN or a wide area network (WAN))). These various types of communication modules can be implemented as a single component (e.g., a single chip), or these various types of communication modules can be implemented as multiple components separated from each other (e.g., multiple chips). The wireless communication module 192 can identify and authenticate the electronic device 101 in a communication network (such as the first network 198 or the second network 199) using user information (e.g., an International Mobile Subscriber Identity (IMSI)) stored in the user identification module 196.

[0050] The antenna module 197 may transmit or receive a signal or power to or from the outside of the electronic device 101 (e.g., an external electronic device). According to an embodiment, the antenna module 197 may include an antenna including a radiating element formed of a conductive material or a conductive pattern formed in or on a substrate (e.g., a PCB). According to an embodiment, the antenna module 197 may include a plurality of antennas. In this case, at least one antenna suitable for a communication scheme used in a communication network (such as the first network 198 or the second network 199) may be selected from the plurality of antennas by, for example, the communication module 190 (e.g., the wireless communication module 192). A signal or power may then be transmitted or received between the communication module 190 and the external electronic device via the selected at least one antenna. According to an embodiment, another component (e.g., a radio frequency integrated circuit (RFIC)) other than the radiating element may be additionally formed as a part of the antenna module 197.

[0051] At least some of the above components may be connected to each other via an inter-peripheral communication scheme (e.g., a bus, general purpose input output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and communicatively transmit signals (e.g., commands or data) therebetween.

[0052] According to an embodiment, a command or data may be sent or received between the electronic device 101 and the external electronic device 104 via the server 108 connected to the second network 199. Each of the electronic device 102 and the electronic device 104 may be a device of the same type as the electronic device 101, or a device of a different type from the electronic device 101. According to an embodiment, all or some operations to be executed in the electronic device 101 may be executed in one or more of the external electronic device 102, the external electronic device 104, or the server 108. For example, if the electronic device 101 should automatically execute a function or service or should execute a function or service in response to a request from a user or another device, the electronic device 101 may request the one or more external electronic devices to execute at least part of the function or service instead of executing the function or service, or the electronic device 101 may request the one or more external electronic devices to execute at least part of the function or service in addition to executing the function or service. The one or more external electronic devices that receive the request may execute the requested at least part of the function or service, or execute another function or another service related to the request, and transmit the result of the execution to the electronic device 101. The electronic device 101 may provide the result as at least a partial reply to the request with or without further processing the result. To this end, for example, cloud computing technology, distributed computing technology, or client-server computing technology may be used.

[0053] Figure 2 2 is a block diagram 200 illustrating the power management module 188 and the battery 189 according to various embodiments. Figure 2 , the power management module 188 may include a charging circuit 210 , a power conditioner 220 , or a power meter 230 .

[0054] In certain embodiments, charging circuit 210 may select a charging scheme for charging battery 189. Power conditioner 220 may generate a power level, voltage level, and current level applied to battery 189 based on the scheme selected by charging circuit 210 for charging battery 189. Power meter 230 may determine the state of battery 189, including determining the charge level.

[0055] The charging circuit 210 may select a charging scheme for charging the battery 189. The charging circuit 210 may charge the battery 189 by using power supplied from an external power source outside the electronic device 101. According to an embodiment, the charging circuit 210 may select a charging scheme (e.g., normal charging or fast charging) based at least in part on the type of the external power source (e.g., a power outlet, USB, or wireless charging), a power value that can be provided from the external power source (e.g., about 20 watts or more), or a property of the battery 189, and may charge the battery 189 using the selected charging scheme. The external power source may be directly connected to the electronic device 101 via the connection terminal 178, for example, or wirelessly connected to the electronic device 101 via the antenna module 197.

[0056] The power regulator 220 may generate a plurality of powers having different voltage levels or different current levels by regulating the voltage level or current level of the power supplied from the external power source or the battery 189. The power regulator 220 may regulate the voltage level or current level of the power supplied from the external power source or the battery 189 to different voltage levels or current levels suitable for each of some components included in the electronic device 101. According to an embodiment, the power regulator 220 may be implemented in the form of a low dropout (LDO) regulator or a switching regulator.

[0057] The power meter 230 may measure usage status information about the battery 189 (eg, the capacity, the number of times of charging or discharging, the voltage, or the temperature of the battery 189 ).

[0058] The power management module 188 may use, for example, the charging circuit 210, the power conditioner 220, or the power meter 230 to determine charging status information related to the charging of the battery 189 (e.g., life, overvoltage, low voltage, overcurrent, overcharge, overdischarge, overheat, short circuit, or expansion) based at least in part on the measured usage status information about the battery 189. The power management module 188 may determine whether the state of the battery 189 is normal or abnormal based at least in part on the determined charging status information. If the state of the battery 189 is determined to be abnormal, the power management module 188 may adjust the charging of the battery 189 (e.g., reduce the charging current or voltage, or stop charging). According to an embodiment, at least some of the functions of the power management module 188 may be performed by an external control device (e.g., the processor 120).

[0059] According to an embodiment, the battery 189 may include a protection circuit module (PCM) 240. The PCM 240 may perform one or more of various functions (e.g., a pre-cutoff function) for preventing performance deterioration or damage of the battery 189. Additionally or alternatively, the PCM 240 may be configured as at least a portion of a battery management system (BMS), wherein the BMS is capable of performing various functions including cell balancing, measurement of battery capacity, counting of the number of times of charging or discharging, measurement of temperature, or measurement of voltage.

[0060] According to an embodiment, at least a portion of the charging state information or the usage state information about the battery 189 may be measured using a corresponding sensor (e.g., a temperature sensor) of the sensor module 176, the power meter 230, or the power management module 188. According to an embodiment, the corresponding sensor (e.g., a temperature sensor) of the sensor module 176 may be included as a part of the PCM 240, or may be arranged near the battery 189 as a separate device.

[0061] The electronic device according to some embodiments may be one of various types of electronic devices. The electronic device may include, for example, a portable communication device (e.g., a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a household appliance. According to an embodiment of the present disclosure, the electronic device is not limited to those described above.

[0062] It should be understood that certain embodiments of the present disclosure and the terms used therein are not intended to limit the technical features set forth herein to specific embodiments, but include various variations, equivalents or substitutes of the corresponding embodiments. Regarding the description of the accompanying drawings, the same reference numerals may be used to refer to similar or related elements. It should be understood that the singular form of a noun corresponding to an item may include one or more things, unless the relevant context clearly indicates otherwise. As used herein, each of the phrases such as "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 "at least one of A, B or C" may include any one or all possible combinations of the items listed together with the corresponding one of the multiple phrases. As used herein, terms such as "1st" and "2nd" or "first" and "second" may be used to simply distinguish the corresponding component from another component, and do not limit the component in other aspects (e.g., importance or order). It will be understood that if an element (e.g., a first element) is referred to as being “combined with another element (e.g., the second element)”, “combined to another element (e.g., the second element)”, “connected with another element (e.g., the second element)”, or “connected to another element (e.g., the second element)” when the terms “operably” or “communicatively” are used or when the terms “operably” or “communicatively” are not used, it means that the element may be directly (e.g., wired) connected to the other element, wirelessly connected to the other element, or connected to the other element via a third element.

[0063] As used herein, the term "module" may include units implemented in hardware, software, or firmware, and may be used interchangeably with other terms (e.g., "logic," "logic block," "portion," or "circuit"). A module may be a single integrated component adapted to perform one or more functions or a minimum unit or portion of the single integrated component. For example, according to an embodiment, a module may be implemented in the form of an application specific integrated circuit (ASIC).

[0064] The various embodiments described herein may be implemented as software (e.g., program 140) including one or more instructions stored in a storage medium (e.g., internal memory 136 or external memory 138) that can be read by a machine (e.g., electronic device 101). For example, under the control of a processor, a processor (e.g., processor 120) of the machine (e.g., electronic device 101) may call at least one of the one or more instructions stored in the storage medium and execute the at least one instruction with or without the use of one or more other components. This enables the machine to operate to perform at least one function according to the at least one instruction called. The one or more instructions may include code generated by a compiler or code that can be run by an interpreter. A machine-readable storage medium may be provided in the form of a non-transitory storage medium. Among them, the term "non-transitory" only means that the storage medium is a tangible device and does not include a signal (e.g., an electromagnetic wave), but the term does not distinguish between data being semi-permanently stored in a storage medium and data being temporarily stored in a storage medium.

[0065] According to an embodiment, the method according to various embodiments of the present disclosure may be included and provided in a computer program product. The computer program product may be traded between a seller and a buyer as a product. The computer program product may be released in the form of a machine-readable storage medium (e.g., a compact disk read-only memory (CD-ROM)), or may be downloaded via an application store (e.g., Play Store TM ) The computer program product may be published (e.g., downloaded or uploaded) online, or the computer program product may be distributed (e.g., downloaded or uploaded) directly between two user devices (e.g., smart phones). If published online, at least part of the computer program product may be temporarily generated, or at least part of the computer program product may be at least temporarily stored in a machine-readable storage medium (such as a memory of a manufacturer's server, an application store's server, or a forwarding server).

[0066] According to various embodiments, each component (e.g., module or program) in the above-mentioned components may include a single entity or multiple entities. According to various embodiments, one or more components in the above-mentioned components may be omitted, or one or more other components may be added. Alternatively or additionally, multiple components (e.g., module or program) may be integrated into a single component. In this case, according to various embodiments, the integrated component may still perform the one or more functions of each component in the multiple components in the same or similar manner as a corresponding component in the multiple components before integration. According to various embodiments, the operations performed by a module, program or another component may be performed sequentially, in parallel, repeatedly or in a heuristic manner, or one or more operations in the operations may be run or omitted in different orders, or one or more other operations may be added.

[0067] Figure 3A is a block diagram of an electronic device according to one or more embodiments.

[0068] refer to Figure 3A , the electronic device 101 may include a processor 120 (eg, Figure 1 processor 120), connector 178 (e.g., Figure 1 connection terminal 178), battery 189 (e.g., Figure 1 battery 189) and voltage divider 310.

[0069] The processor 120 receives a signal through the connector 178. The signal may indicate the voltage or power level of the power received from the external electronic device. Based on the signal, the processor 120 selects a specific one of the three or more voltage divider ratios that the voltage divider 310 can achieve. The processor 120 then controls the capacitors and switches of the voltage divider 310 to achieve the selected voltage divider ratio. The voltage divider 310 then divides the voltage received from the connector 178 to apply to the battery 189.

[0070] In one or more embodiments, connector 178 can be configured to connect to an external electronic device (e.g., a power adapter (PA)) or a travel adapter (TA)) to provide power for battery charging of electronic device 101. Direct charging may include a constant voltage and constant current charging scheme for providing a rechargeable battery in the charging device to minimize heating. In one or more embodiments, connector 178 can establish a path for signals from an external electronic device to electronic device 101, and vice versa.

[0071] In the following description, an example of wired power connection from an external electronic device via connector 178 is described, although it should be understood that the present disclosure is not limited to the foregoing. In addition, the external electronic device of one or more embodiments may also include a wireless power transmission device, such as a wireless charging pad.

[0072] In one or more embodiments, the processor 120 may be a main processor of the electronic device 101 (eg, Figure 1 The processor 120 may be a main processor 121 of the voltage divider 310, or may be an auxiliary processor. The processor 120 may be an auxiliary processor included in the voltage divider 310 or disposed outside the voltage divider 310 and operably coupled to the voltage divider 310.

[0073] In one or more embodiments, the voltage divider 310 may include a plurality of capacitors and a plurality of switches. A plurality of capacitors and switches may switch electrical paths between each of the plurality of capacitors and the battery 189. As a result, the voltage divider 310 may provide three or more voltage divider ratios. Each of the plurality of capacitors may be referred to as a fast capacitor. In one or more embodiments, each of the plurality of capacitors may be included in the voltage divider 310 for voltage division. The plurality of capacitors may include a first capacitor and a second capacitor. In one or more embodiments, each of the plurality of switches may be included in the voltage divider 310 to provide a voltage divider ratio corresponding to a voltage presented from an external electronic device. In one or more embodiments, each of the plurality of switches may include a metal oxide semiconductor field effect transistor (MOSFET). In one or more embodiments, according to the control of the processor 120, each of the plurality of switches may have a first state (or short circuit / short circuit) of connecting an electrical path or a second state (open circuit / high impedance) of disconnecting an electrical path. However, the present disclosure is not limited to the foregoing.

[0074] In one or more embodiments, the processor 120 may obtain data representing (receive data indicating) a first voltage from an external electronic device. The first voltage is a voltage applied to the electronic device 101 by the external electronic device (via the connector 178) to charge the battery 189. For example, when the connector 178 is a USB type-c, the indicator from the external electronic device may indicate a power delivery (PD) communication protocol of the USB standard.

[0075] The processor 120 may identify or determine how to process the first voltage received from the external electronic device using the voltage divider 310 based on the acquired data. For example, when receiving an indicator indicating that direct charging is suitable, the processor 120 may cause the voltage divider 310 to output the first voltage. As another example, in response to receiving an indicator indicating that direct charging is not suitable, the processor 120 may switch the charging path by using the charging path switching circuit ( Figure 3A ) (e.g., Figure 3B The switching charger 330) presents power for applying a first voltage received from an external electronic device to another power management circuit included in the electronic device 101.

[0076] In one or more embodiments, in response to receiving an indicator indicating that direct charging is appropriate, the processor 120 can control the states of multiple switches included in the voltage divider 310 so that the voltage divider performs voltage division according to a voltage divider ratio corresponding to data among three or more voltage divider ratios that can be supported by the voltage divider 310.

[0077] In one or more embodiments, the voltage divider 310 can perform voltage division on the first voltage according to a voltage division ratio corresponding to data in three or more voltage division ratios based on control of the states of multiple switches of the processor 120, and provide power to the battery 189 for applying a second voltage corresponding to the charging voltage of the battery 189 to the battery 189 based on the performed voltage division.

[0078] For example, in response to the first voltage being three times the charging voltage of the battery 189, in order to directly charge, based on the control of the plurality of switches of the processor 120, the first capacitor and the second capacitor in the voltage divider 310 can be connected in series to each of the input terminal of the voltage divider 310 electrically connected to the external electronic device and the output terminal of the voltage divider 310 electrically connected to the battery 189. Through the series connection, each of the first capacitor and the second capacitor can be charged based on the charging voltage and the first voltage. For example, each of the first capacitor and the second capacitor can be charged to obtain the charging voltage. After each of the first capacitor and the second capacitor obtains the charging voltage, based on the control of the plurality of switches of the processor 120, the first capacitor and the second capacitor can be electrically disconnected from the input terminal and connected in parallel with respect to the battery 189 electrically connected to the output terminal. The first capacitor and the second capacitor obtain the charging voltage, so the battery 189 can obtain a second voltage corresponding to the charging voltage by discharging the first capacitor and the second capacitor connected in parallel with respect to the battery 189. By performing a 3 to 1 voltage division by charging and discharging the first capacitor and the second capacitor, the voltage divider 310 of the embodiment can present a second voltage corresponding to the charging voltage to the battery 189. On the other hand, when the second voltage is supplied to the battery 189 , the voltage divider 310 may supply a current corresponding to three times the current applied from the external electronic device to the battery 189 through charging and discharging of the first capacitor and the second capacitor.

[0079] For example, in response to the first voltage being twice the charging voltage of the battery 189, in order to directly charge, based on the control of the plurality of switches of the processor 120, one of the first and second capacitors in the voltage divider 310 can be connected in series to each input terminal of the voltage divider 310 electrically connected to the external electronic device and the output terminal of the voltage divider 310 electrically connected to the battery 189. Through the series connection, one of the first and second capacitors can be charged based on the charging voltage and the first voltage. For example, one of the first and second capacitors can be charged to obtain the charging voltage. After one of the first and second capacitors obtains the charging voltage, based on the control of the plurality of switches of the processor 120, one of the first and second capacitors can be electrically disconnected from the input terminal and connected in parallel with respect to the battery 189 electrically connected to the output terminal. One of the first and second capacitors obtains the charging voltage, so the battery 189 can obtain a second voltage corresponding to the charging voltage by discharging one of the first and second capacitors connected in parallel with respect to the battery 189. By charging and discharging one of the first and second capacitors to perform a 2 to 1 voltage division, the voltage divider 310 of the embodiment can present a second voltage corresponding to the charging voltage to the battery 189. On the other hand, when the second voltage is supplied to the battery 189 , the voltage divider 310 may supply the battery 189 with a current corresponding to twice the current applied from the external electronic device through charging and discharging of one of the first capacitor and the second capacitor.

[0080] For example, in response to a first voltage corresponding to the charging voltage of the battery 189 (i.e., in response to the first voltage being the same as the charging voltage of the battery 189), based on the control of the plurality of switches of the processor 120, the input terminal may be directly connected to the output terminal of the voltage divider 310 electrically connected to the battery 189. For example, when the first voltage substantially corresponds to the charging voltage of the battery 189 (or within 10% of the charging voltage of the battery 189), the processor 120 may control the state of the plurality of switches to form a short circuit from the external electronic device to the output terminal, thereby passing through the first capacitor and the second capacitor. By performing a 1:1 voltage division based on a direct connection between the input terminal and the output terminal, the voltage divider 310 of the embodiment may present a second voltage corresponding to the charging voltage to the battery 189. On the other hand, while providing the second voltage to the battery 189, based on the direct connection between the input terminal and the output terminal, the voltage divider 310 may provide a current equivalent to one times the current applied from the external electronic device to the battery 189.

[0081] Figure 3B is a block diagram of an electronic device and an external electronic device according to one or more embodiments.

[0082] For example, refer to Figure 3B , an external electronic device 320 including a power adapter (PA) or a travel adapter (TA) can be connected to the voltage divider 310 or the switching charger 330 via the connector 178. When the external electronic device 320 provides a first voltage for possible voltage division through the voltage divider 310. In one or more embodiments, the first voltage can protect the voltage divider 310 through the overvoltage protection circuit 340. The first voltage can pass through the overvoltage protection circuit 340, which is further connected to the input capacitor 335 and applied to the voltage divider 310. By performing voltage division on the first voltage, the voltage divider 310 can charge the battery 189.

[0083] In response to the first voltage being a voltage that cannot be divided by the voltage divider 310, the switching charger 330 can obtain the first voltage from the external electronic device 320 and charge the battery 189. In response to the battery 189 being fully charged, the switch 350 can be used to disconnect or open the electrical connection between the switching charger 330 and the battery.

[0084] As described above, the voltage divider 310 included in the electronic device 101 of one or more embodiments can perform direct charging of the battery 189 to support a voltage divider ratio corresponding to the magnitude of the voltage presented from the external electronic device among three or more voltage divider ratios by changing the connection structure of the voltage divider 310. Through such execution of direct charging, the electronic device 101 of one or more embodiments can maintain compatibility while improving high-speed charging performance.

[0085] Figure 4 An example of a voltage divider according to an embodiment is shown.

[0086] For example, refer to Figure 4 , the voltage divider 310 may include an input terminal 405, a first switch 410, a second switch 415, a first capacitor 420, a third switch 425, a fourth switch 430, a fifth switch 435, a second capacitor 440, a sixth switch 445, a seventh switch 450, and an output terminal 455. In one or more embodiments, the control of the first switch 410 to the seventh switch 450 may be performed by the processor 120.

[0087] The input terminal 405 may be electrically connected to an external electronic device via the connector 178. The first switch 410 may include a terminal 410-1 and a terminal 410-2. The second switch 415 may include a terminal 415-1 and a terminal 415-2. The first capacitor 420 may include a terminal 420-1 and a terminal 420-2. The third switch 425 may include a terminal 425-1 and a terminal 425-2 electrically connected to the ground. The fourth switch 430 may include a terminal 430-1 and a terminal 430-2. The fifth switch 435 may include a terminal 435-1 and a terminal 435-2. The second capacitor 440 may include a terminal 440-1 and a terminal 440-2. The sixth switch 445 may include a terminal 445-1 and a terminal 445-2 electrically connected to the ground. The seventh switch 450 may include a terminal 450-1 and a terminal 450-2. The output terminal 455 may be electrically connected to the battery 189. The switches 410 , 415 , 420 . . . 450 may establish a short circuit / electrical connection or an open circuit / disconnection between the respective terminals.

[0088] In one or more embodiments, the first switch 410 may be disposed between the input terminal 405 and the first node 461. The first capacitor 420 may be disposed between the first node 461 and the second node 462. The second switch 415 may be disposed between the first node 461 and the third node 463. The third switch 425 may be disposed between the second node 462 and the first grounding node 462-1. The fourth switch 430 may be disposed between the second node 462 and the third node 463. The fifth switch 435 may be disposed between the third node 463 and the fifth node 465. The second capacitor 440 may be disposed between the third node 463 and the fourth node 464. The sixth switch 445 may be disposed between the fourth node 464 and the second grounding node 464-1. The seventh switch 450 may be disposed between the fourth node 464 and the fifth node 465. The output terminal 465 may correspond to the fifth node 465. The battery 189 may be disposed between the fifth node 465 and the third grounding node 465-1.

[0089] According to an embodiment, the first ground node 462 - 1 , the second ground node 464 - 1 , and / or the third ground node 465 - 1 may be electrically connected.

[0090] Although in Figure 4 Not shown, but in one embodiment, the input terminal may be further connected to a third capacitor as an input capacitor.

[0091] Figures 4 to 8An example is shown in which the voltage divider 310 includes two capacitors (e.g., the first capacitor 420 and the second capacitor 440) and seven switches (e.g., the first switch 410 to the seventh switch 450) to support three voltage division ratios, but the voltage divider 310 of some embodiments may include three or more capacitors and eight or more switches, thereby also supporting four or more voltage division ratios. In one or more embodiments, each capacitor may be composed of a plurality of parallel capacitors to support voltage division.

[0092] In one or more embodiments, in response to the first voltage being substantially three times the charging voltage of the battery 189 , the voltage divider 310 may support a voltage division ratio of 3 to 1 based on control of the first to seventh switches 410 to 450 of the processor 120 .

[0093] FIG. 5A to FIG. 5B FIG. 2 shows an example of a connection structure of a voltage divider that performs 3:1 voltage division according to an embodiment. Figure 5A In , switches 410, 430, and 450 are short-circuited, thereby causing capacitors 420 and 440 to charge. Figure 5B In FIG. 4 , switches 410 , 430 , and 450 are open, and switches 415 and 435 are shorted, causing capacitors 420 and 440 to discharge.

[0094] Figure 5C yes FIG. 5A to FIG. 5B A timing diagram of the voltage divider 310 is shown.

[0095] For example, refer to Figure 5A , the processor 120 may set the states of the first switch 410, the fourth switch 430, and the seventh switch 450 to a short circuit state, and set the states of the remaining switches to an open circuit state, so that the first capacitor 420 and the second capacitor 440 are initialized. The processor 120 may control the above based on receiving an indicator indicating that the first voltage is three times or 3 times the charging voltage of the battery 189. The initialization of each of the first capacitor and the second capacitor may be performed using a linear regulator or a switching regulator electrically connected to the voltage divider 310. By short-circuiting the first switch 410, the fourth switch 430, and the seventh switch 450, the first capacitor 420 and the second capacitor 440 are connected in series with respect to the input terminal 405 and the output terminal 455. Based on the series connection, the first capacitor 420 and the second capacitor 440 may be charged based on the first voltage received from the external electronic device and the charging voltage of the battery 189.

[0096] refer to Figure 5C, the processor 120 may set the states of the first switch 410, the fourth switch 430, and the seventh switch 450 to the first state (short circuit, electrical connection) in the first time period 510, and set the states of the second switch 415, the third switch 425, the fifth switch 435, and the sixth switch 445 to the second state (open circuit, electrical disconnection). Through the control of the processor 120 in the first time period 510, the first capacitor 420 and the second capacitor 440 may be connected in series with respect to each of the input terminal 405 and the output terminal 455, and charged based on the series connection. Based on the charging, the first capacitor 420 may obtain a target voltage (e.g., about 4.38V) corresponding to the charging voltage of the battery 189 at the end of the first time period 510. Based on the charging, the second capacitor 440 may obtain a target voltage (e.g., about 4.32V) corresponding to the charging voltage of the battery 189 at the end of the first time period 510. On the other hand, the current applied to the first switch 410, the current applied to the second switch 415, and the current applied to the fifth switch 435 may be changed by the charging of the first capacitor 420 and the second capacitor 440.

[0097] After the first capacitor 420 and the second capacitor 440 obtain a charging voltage (or a target voltage) through charging, the processor 120 may switch the states of the first switch 410 to the seventh switch 450 .

[0098] For example, refer to Figure 5B, after the first capacitor 420 and the second capacitor 440 reach the charging voltage (or target voltage) during the first time period 510, the processor 120 may switch the states of the first switch 410, the fourth switch 430, and the seventh switch 450 to the second state, and switch the states of the second switch 415, the third switch 425, the fifth switch 435, and the sixth switch 445 to the first state. Based on the switching of the states of the first switch 410 to the seventh switch 450 of the processor 120, the first capacitor 420 and the second capacitor 440 may be electrically disconnected from the input terminal 405 and connected in parallel with respect to the battery 189 electrically connected to the output terminal 455. Based on the switching of the states of the first switch 410 to the seventh switch 450 of the processor 120, the first capacitor 420 and the second capacitor 440 may be discharged. Based on the discharge, the voltage divider 310 may provide power for applying a second voltage corresponding to the charging voltage to the battery 189 through the output terminal 455 to the battery 189. Based on the discharge of the first capacitor 420 and the second capacitor 440, the voltage divider 310 can obtain a current whose magnitude is greater than the maximum acceptable current magnitude of the connector 178. For example, the voltage divider 310 can apply a second voltage corresponding to the charging voltage to the battery 189, and apply a first current that is three times smaller (or between 2.75 and 3.25) than the maximum current magnitude of the connector 178 applied from the external electronic device to the battery 189.

[0099] For example, refer to Figure 5C , the processor 120 may switch the states of the first switch 410, the fourth switch 430, and the seventh switch 450 to the second state, and switch the states of the second switch 415, the third switch 425, the fifth switch 435, and the sixth switch 445 to the first state in a second time period 520 after the first time period 510. Figure 5C An example is shown in which the duration of the first time period 510 and the duration of the second time period 520 are the same as each other, but in other embodiments, the durations may be different from each other.

[0100] Through the control of the processor 120 in the second time period 520, the first capacitor 420 and the second capacitor 440 can be electrically isolated from the input terminal 405, connected in parallel with respect to the output terminal 455, and discharged based on the parallel connection. The first capacitor 420 can be discharged to a voltage (e.g., about 4.32V) at the end of the second time period 520. The second capacitor 440 can be discharged to a voltage (e.g., about 4.28V) at the end of the second time period 520. On the other hand, the current applied to the first switch 410, the current applied to the second switch 415, and the current applied to the fifth switch 435 can be changed by the discharge of the first capacitor 420 and the second capacitor 440.

[0101] By repeatedly executing based on a time period having a duration equal to the sum of the first time period 510 and the second time period 520 Figure 5A and Figure 5B With the change in electrical connection shown, the processor 120 can perform 3:1 voltage division through the voltage divider 310. The electronic device 101 of the embodiment can perform direct charging of the battery 189 based on the 3:1 voltage division ratio.

[0102] In one or more embodiments, in response to the first voltage being twice the charging voltage of the battery 189 , the voltage divider 310 may support a voltage division ratio of 2 to 1 based on control of the first to seventh switches 410 to 450 of the processor 120 .

[0103] FIG. 6A to FIG. 6B An example of a connection structure of a voltage divider that performs 2-to-1 voltage division according to an embodiment is shown.

[0104] Figure 6C yes FIG. 6A to FIG. 6B The timing diagram of the voltage divider is shown.

[0105] For example, refer to Fig. 6A , in a state where the first capacitor 420 and the second capacitor 440 are initialized, the processor 120 may recognize that the first voltage is twice the charging voltage of the battery 189 based on the data received from the external electronic device, and the state of the fifth switch 435 and the sixth switch 445 may be maintained in the first state, and the state of the seventh switch 450 may be maintained in the second state. In addition, the processor 120 may set the states of the first switch 410 and the fourth switch 430 to the first state, and the states of the second switch 415 and the third switch 425 to the second state. Based on the setting of the states of the first switch 410 to the seventh switch 450 of the processor 120, the first capacitor 420 may be connected in series with respect to each of the input terminal 405 and the output terminal 455. Based on the series connection, the first capacitor 420 may be charged based on the first voltage received from the external electronic device and the charging voltage of the battery 189.

[0106] For example, refer to Figure 6C , the processor 120 may set the states of the first switch 410 and the fourth switch 430 to the first state, and set the states of the second switch 415 and the third switch 425 to the second state within the first time period 610. Figure 6C Although not shown, the processor 120 may maintain the states of the fifth switch 435 and the sixth switch 445 as the first state and the state of the seventh switch 450 as the second state in the first time period 610 and a second time period 620 after the first time period 610. Figure 6CAn example is shown in which the duration of the first time period 610 and the duration of the second time period 620 are the same as each other, but according to an embodiment, the duration of the first time period 610 and the duration of the second time period 620 may also be different from each other. Through the control of the processor 120 in the first time period 610, the first capacitor 420 may be connected in series with respect to each of the input terminal 405 and the output terminal 455, and charged based on the series connection. Based on the charging, the first capacitor 420 may be charged to a target voltage (e.g., about 4.27V) corresponding to the charging voltage of the battery 189 at the end of the first time period 610. On the other hand, the current applied to the first switch 410, the current applied to the second switch 415, and the current applied to the fifth switch 435 may be changed by the charging of the first capacitor 420. On the other hand, through the control of the processor 120 in the first time period 610, the voltage of the second capacitor 440 may be changed in the first time period 610.

[0107] After the first capacitor 420 is charged to the charging voltage (or the target voltage), the processor 120 may switch the states of the first to fourth switches 410 to 430 .

[0108] For example, refer to Figure 6B , after the first capacitor 420 obtains the charging voltage (or target voltage) by charging, the processor 120 may switch the states of the first switch 410 and the fourth switch 430 to the second state, and switch the states of the second switch 415 and the third switch 425 to the first state. On the other hand, the states of the fifth switch 435 and the sixth switch 445 may remain in the first state, and the state of the seventh switch 450 may remain in the second state. Based on the switching of the states of the first switch 410 to the fourth switch 430 of the processor 120, the first capacitor 420 may be electrically disconnected from the input terminal 405, and connected in parallel with respect to the battery 189 electrically connected to the output terminal 455. Based on the switching of the states of the first switch 410 to the fourth switch 430 of the processor 120, the first capacitor 420 may be discharged. Based on the discharge, the voltage divider 310 may provide power for applying a second voltage corresponding to the charging voltage to the battery 189 through the output terminal 455. Based on the discharge of the first capacitor 420, the voltage divider 310 may obtain a current whose amplitude is greater than the maximum acceptable current amplitude of the connector 178. For example, the voltage divider 310 may apply a second voltage corresponding to the charging voltage to the battery 189 and apply a current twice as large as a first current smaller than a maximum current magnitude of the connector 178 applied from the external electronic device to the battery 189 .

[0109] For example, refer to Figure 6C, the processor 120 may switch the states of the first switch 410 and the fourth switch 430 to the second state, and switch the states of the second switch 415 and the third switch 425 to the first state in a second time period 620 after the first time period 610. Through the control of the processor 120 in the second time period 620, the first capacitor 420 may be electrically isolated from the input terminal 405 and connected in parallel with the output terminal 455, and discharged based on the parallel connection. Based on the discharge, the first capacitor 420 may be discharged to a voltage (e.g., approximately 4.21V) that is reduced at the end of the second time period 620. On the other hand, the current applied to the first switch 410, the current applied to the second switch 415, and the current applied to the fifth switch 435 may be changed by the discharge of the first capacitor 420. By repeatedly executing based on a time period having a duration equal to the sum of the first time period 610 and the second time period 620, Fig. 6A and Figure 6B With the change in electrical connection shown, the processor 120 can perform 2:1 voltage division through the voltage divider 310. The electronic device 101 of the embodiment can perform direct charging of the battery 189 based on the 2:1 voltage division ratio.

[0110] FIG. 7A to FIG. 7B Another example of a connection structure of a voltage divider that performs 2-to-1 voltage division according to an embodiment is shown.

[0111] Figure 7C yes FIG. 7A to FIG. 7B The timing diagram of the voltage divider is shown.

[0112] For example, refer to Fig. 7A , in a state where the first capacitor 420 and the second capacitor 440 are initialized, based on the data received from the external electronic device, recognizing that the first voltage is twice the charging voltage of the battery 189, the processor 120 may maintain the states of the first switch 405 and the third switch 425 in the first state, maintain the state of the fourth switch 430 in the second state, set the states of the second switch 415 and the seventh switch 450 to the first state, and set the states of the fifth switch 435 and the sixth switch 445 to the second state. Based on the setting of the states of the first switch 410 to the seventh switch 450 of the processor 120, the second capacitor 440 may be connected in series with respect to each of the input terminal 405 and the output terminal 455. Based on the series connection, the second capacitor 440 may be charged based on the first voltage received from the external electronic device and the charging voltage of the battery 189. In order to be connected in series, Fig. 6A The load of the first capacitor 420 shown may be less than Fig. 7A The load of the second capacitor 440 is shown, so Fig. 6A The electrical connections shown may be advantageous in terms of device selection. However, the embodiments are not limited thereto.

[0113] For example, refer to Figure 7C , the processor 120 may set the states of the second switch 415 and the seventh switch 450 to the first state, and the states of the fifth switch 435 and the sixth switch 445 to the second state within the first time period 710. Figure 6C Although not shown, the processor 120 may maintain the states of the first switch 405 and the third switch 425 as the first state and the state of the fourth switch 430 as the second state in the first time period 710 and a second time period 720 after the first time period 710. Figure 7C An example is shown in which the duration of the first time period 710 and the duration of the second time period 720 are the same as each other, but according to an embodiment, the duration of the first time period 710 and the duration of the second time period 720 may also be different from each other. Through the control of the processor 120 in the first time period 710, the second capacitor 440 may be connected in series with respect to each of the input terminal 405 and the output terminal 455, and charged based on the series connection. Based on the charging, the second capacitor 440 may obtain a target voltage (e.g., about 4.20V) corresponding to the charging voltage of the battery 189 at the end of the first time period 710. On the other hand, the current applied to the first switch 410, the current applied to the second switch 415, and the current applied to the fifth switch 435 may be changed by the charging of the second capacitor 440. On the other hand, through the control of the processor 120 in the first time period 710, the voltage of the first capacitor 420 may be changed in the first time period 710.

[0114] After the second capacitor 440 obtains a charging voltage (or a target voltage) through charging, the processor 120 may switch the states of the second switch 415 , the fifth switch 435 , the sixth switch 445 , and the seventh switch 450 .

[0115] For example, refer to Figure 7B, after the second capacitor 440 obtains the charging voltage (or target voltage) by charging, the processor 120 may switch the states of the second switch 415 and the seventh switch 450 to the second state, and switch the states of the fifth switch 435 and the sixth switch 445 to the first state. On the other hand, the states of the first switch 405 and the third switch 425 may remain in the first state, and the state of the fourth switch 430 may remain in the second state. Based on the switching of the states of the second switch 415, the fifth switch 435, the sixth switch 445, and the seventh switch 450 of the processor 120, the second capacitor 440 may be electrically disconnected from the input terminal 405, and connected in parallel with respect to the battery 189 electrically connected to the output terminal 455. Based on the switching of the states of the second switch 415, the fifth switch 435, the sixth switch 445, and the seventh switch 450 of the processor 120, the second capacitor 440 may be discharged. Based on the discharge, the voltage divider 310 may provide power for applying a second voltage corresponding to the charging voltage to the battery 189 through the output terminal 455 to the battery 189. Based on the discharge of the second capacitor 440, the voltage divider 310 may obtain a current having a magnitude greater than the maximum acceptable current magnitude of the connector 178. For example, the voltage divider 310 may apply a second voltage corresponding to the charging voltage to the battery 189, and apply a current twice as large as the first current smaller than the maximum current magnitude of the connector 178 applied from the external electronic device to the battery 189.

[0116] For example, refer to Figure 7C , the processor 120 may switch the states of the second switch 415 and the seventh switch 450 to the second state, and switch the states of the fifth switch 435 and the sixth switch 445 to the first state in a second time period 720 after the first time period 710. Through the control of the processor 120 in the second time period 720, the second capacitor 440 may be electrically isolated from the input terminal 405, connected in parallel with the output terminal 455, and discharged based on the parallel connection. Based on the discharge, the second capacitor 440 may be discharged to a voltage (e.g., approximately 4.14V) at the end of the second time period 720. On the other hand, the current applied to the first switch 410, the current applied to the second switch 415, and the current applied to the fifth switch 435 may be changed by the discharge of the second capacitor 440. By repeatedly executing based on a time period having a duration equal to the sum of the first time period 710 and the second time period 720 Fig. 7A and Figure 7B With the change in electrical connection shown, the processor 120 can perform 2:1 voltage division through the voltage divider 310. The electronic device 101 of the embodiment can perform direct charging of the battery 189 based on the 2:1 voltage division ratio.

[0117] In one or more embodiments, in response to the first voltage corresponding to the charging voltage of the battery 189 , the voltage divider 310 may support a 1:1 voltage division ratio based on control of the first to seventh switches 410 to 450 of the processor 120 .

[0118] Figure 8 An example of a connection structure of a voltage divider that performs 1:1 voltage division according to an embodiment is shown.

[0119] For example, refer to Figure 8 , the processor 120 can recognize that the first voltage corresponds to the charging voltage of the battery 189 based on the data received from the external electronic device, maintain the states of the first switch 410, the second switch 415, the third switch 425, the fifth switch 435, and the sixth switch 445 in the first state, and maintain the states of the fourth switch 430 and the seventh switch 450 in the second state. As a result, the input terminal 405 can be directly connected to the output terminal 455, the first voltage applied from the external electronic device can be applied to the battery 189, and a first current less than the maximum current amplitude of the connector 178 applied from the external electronic device can be applied.

[0120] As described above, the electronic device 101 of one or more embodiments may include a voltage divider 310 capable of charging the battery 189 through high-speed charging performance while improving compatibility by adaptively supporting a 3:1 voltage divider ratio, a 2:1 voltage divider ratio, and a 1:1 voltage divider ratio.

[0121] The voltage divider 310 is not limited to Figure 4 For example, refer to Fig. 9 , the voltage divider 310 may include an input terminal 905, a first switch 910, a second switch 915, a first capacitor 920, a third switch 925, a fourth switch 930, a fifth switch 935, a second capacitor 940, a sixth switch 945, a seventh switch 950, and an output terminal 955. In one or more embodiments, the control of the first switch 910 to the seventh switch 950 may be performed by the processor 120.

[0122] In one or more embodiments, the input terminal 905 may be electrically connected to an external electronic device via the connector 178. The first switch 910 may include a first terminal 910-1 and a second terminal 910-2. The second switch 915 may include a third terminal 915-1 and a fourth terminal 915-2. The first capacitor 920 may include a fifth terminal 920-1 and a sixth terminal 920-2. The third switch 925 may include a seventh terminal 925-1 and an eighth terminal 925-2 electrically connected to the ground. The fourth switch 930 may include a ninth terminal 930-1 and a tenth terminal 930-2. The fifth switch 935 may include an eleventh terminal 935-1 and a twelfth terminal 935-2. The second capacitor 940 may include a thirteenth terminal 940-1 and a fourteenth terminal 940-2. The sixth switch 945 may include a fifteenth terminal 945-1 and a sixteenth terminal 945-2. The seventh switch 950 may include a seventeenth terminal 950-1 and an eighteenth terminal 950-2 electrically connected to the ground. The output terminal 955 can be electrically connected to the battery 189.

[0123] In one or more embodiments, the first switch 910 may be provided between the input terminal 905 and the first node 961. The second switch 915 may be provided between the first node 961 and the fifth node 965. The first capacitor 920 may be provided between the first node 961 and the second node 962. The third switch 925 may be provided between the second node 962 and the first grounding node 962-1. The fourth switch 930 may be provided between the second node 962 and the third node 963. The fifth switch 935 may be provided between the third node 963 and the fifth node 965. The second capacitor 940 may be provided between the third node 963 and the fourth node 964. The sixth switch 945 may be provided between the fourth node 964 and the fifth node 965. The seventh switch 950 may be provided between the fourth node 964 and the second grounding node 964-1. The output terminal 955 may correspond to the fifth node 965. The battery 189 may be provided between the fifth node 965 and the third grounding node 965-1.

[0124] According to an embodiment, the first ground node 962 - 1 , the second ground node 964 - 1 , and / or the third ground node 965 - 1 may be electrically connected.

[0125] Although in Fig. 9 Not shown, but in one embodiment, the input terminal may be further connected to a third capacitor as an input capacitor.

[0126] Figure 9 to Figure 11 shows an example in which the voltage divider 310 includes two capacitors (e.g., the first capacitor 920 and the second capacitor 940) and seven switches (e.g., the first switch 910 to the seventh switch 950) to support three voltage division ratios, but the voltage divider 310 of some embodiments may include three or more capacitors and eight or more switches, thereby also supporting four or more voltage division ratios.

[0127] In one or more embodiments, in response to the first voltage being substantially three times (or between 2.75 and 3.25 times) the charging voltage of the battery 189, the voltage divider 310 can support a 3 to 1 voltage divider ratio based on control of the first switch 910 to the seventh switch 950 of the processor 120.

[0128] FIG. 10A to FIG. 10B Another example of a connection structure of a voltage divider that performs 3-to-1 voltage division according to an embodiment is shown.

[0129] Fig. 10C yes FIG. 10A to FIG. 10B The timing diagram of the voltage divider is shown.

[0130] For example, refer to Fig. 10A , in a state where the first capacitor 920 and the second capacitor 940 are initialized, based on the data received from the external electronic device, the processor 120 may set the states of the first switch 910, the fourth switch 930, and the sixth switch 945 to the first state, and set the states of the remaining switches to the second state. Based on the setting of the states of the first switch 910 to the seventh switch 950 of the processor 120, the first capacitor 920 and the second capacitor 940 may be connected in series with respect to each of the input terminal 905 and the output terminal 955. Based on the series connection, the first capacitor 920 and the second capacitor 940 may be charged based on the first voltage received from the external electronic device and the charging voltage of the battery 189.

[0131] For example, refer to Fig. 10C, the processor 120 may set the states of the first switch 910, the fourth switch 930, and the sixth switch 945 to the first state within the first time period 1010, and set the states of the second switch 915, the third switch 925, the fifth switch 935, and the sixth switch 950 to the second state. Through the control of the processor 120 within the first time period 1010, the first capacitor 920 and the second capacitor 940 may be connected in series with respect to each of the input terminal 905 and the output terminal 955, and charged based on the series connection. Based on the charging, the first capacitor 920 may obtain a target voltage (e.g., about 4.15V) corresponding to the charging voltage of the battery 189 at the end of the first time period 1010. Based on the charging, the second capacitor 940 may obtain a target voltage (e.g., about 4.21V) corresponding to the charging voltage of the battery 189 at the end of the first time period 1010. On the other hand, the current applied to the first switch 910, the current applied to the second switch 915, and the current applied to the fifth switch 935 may be changed by the charging of the first capacitor 920 and the second capacitor 940.

[0132] After the first capacitor 920 and the second capacitor 940 are charged to the target voltage, the processor 120 may switch the states of the first switch 910 to the seventh switch 950 .

[0133] For example, refer to Fig. 10B , after the first capacitor 920 and the second capacitor 940 are charged to the target voltage, the processor 120 may switch the states of the first switch 910, the fourth switch 930, and the sixth switch 945 to the second state, and switch the states of the second switch 415, the third switch 425, the fifth switch 435, and the seventh switch 950 to the first state. Based on the switching of the states of the first switch 910 to the seventh switch 950 of the processor 120, the first capacitor 920 and the second capacitor 940 may be electrically disconnected from the input terminal 905, and connected in parallel with respect to the battery 189 electrically connected to the output terminal 955. Based on the switching of the states of the first switch 910 to the seventh switch 950 of the processor 120, the first capacitor 920 and the second capacitor 940 may be discharged. Based on the discharge, the voltage divider 310 may provide power for applying a second voltage corresponding to the charging voltage to the battery 189 through the output terminal 955. Based on the discharge of the first capacitor 920 and the second capacitor 940, the voltage divider 310 may obtain a current having a magnitude greater than a maximum acceptable current magnitude of the connector 178. For example, the voltage divider 310 can apply a second voltage corresponding to the charging voltage to the battery 189 and apply a current to the battery 189 that is substantially three times (or between 2.75 and 3.25 times) the first current, which is less than the maximum current amplitude of the connector 178 applied from the external electronic device.

[0134] For example, refer to Fig. 10C , the processor 120 can switch the states of the first switch 910, the fourth switch 930 and the sixth switch 945 to the second state, and switch the states of the second switch 915, the third switch 925, the fifth switch 935 and the seventh switch 950 to the first state in a second time period 1020 after the first time period 1010. Fig. 10C An example is shown in which the duration of the first time period 1010 and the duration of the second time period 1020 are the same as each other, but according to an embodiment, the duration of the first time period 1010 and the duration of the second time period 1020 may also be different from each other. Through the control of the processor 120 in the second time period 1020, the first capacitor 920 and the second capacitor 940 can be electrically isolated from the input terminal 905, connected in parallel with respect to the output terminal 955, and discharged based on the parallel connection. Based on the discharge, the first capacitor 920 can be discharged to a voltage (for example, about 4.08V) at the end of the second time period 1020. Based on the discharge, the second capacitor 940 can be discharged to a voltage (for example, about 4.14V) at the end of the second time period 1020. On the other hand, the current applied to the first switch 910, the current applied to the second switch 915, and the current applied to the fifth switch 935 can be changed by the discharge of the first capacitor 920 and the second capacitor 940. By repeatedly performing the operation based on a time period having a duration equal to the sum of the first time period 1010 and the second time period 1020 Fig. 10A and Fig. 10B With the change in electrical connection shown, the processor 120 can perform 3:1 voltage division through the voltage divider 310. The electronic device 101 of the embodiment can perform direct charging of the battery 189 based on the 3:1 voltage division ratio.

[0135] In one or more embodiments, in response to the first voltage being twice the charging voltage of the battery 189 , the voltage divider 310 may support a voltage division ratio of 2 to 1 based on control of the first to seventh switches 910 to 950 of the processor 120 .

[0136] FIG. 11A to FIG. 11B Another example of a connection structure of a voltage divider that performs 2-to-1 voltage division according to an embodiment is shown.

[0137] Fig. 11C yes FIG. 11A to FIG. 11B The timing diagram of the voltage divider is shown.

[0138] For example, refer to Fig.11A, in a state where the first capacitor 920 and the second capacitor 940 are initialized, based on the data received from the external electronic device, the processor 120 may recognize that the first voltage is twice the charging voltage of the battery 189, and the fifth switch 935 and the seventh switch 950 may maintain the state of the first state, maintain the state of the sixth switch 945 to the second state, and set the state of the first switch 910 and the fourth switch 930 to the first state, and set the state of the second switch 915 and the third switch 925 to the second state. Based on the setting of the states of the first switch 910 to the seventh switch 950 of the processor 120, the first capacitor 920 may be connected in series with respect to each of the input terminal 905 and the output terminal 955. Based on the series connection, the first capacitor 920 may be charged based on the first voltage received from the external electronic device and the charging voltage of the battery 189.

[0139] For example, refer to Fig. 11C , the processor 120 may set the states of the first switch 910 and the fourth switch 930 to the first state, and set the states of the second switch 915 and the third switch 925 to the second state within the first time period 1110. Fig. 11C Although not shown, the processor 120 may maintain the states of the fifth switch 935 and the seventh switch 950 in the first state and the state of the sixth switch 945 in the second state in the first time period 1110 and the second time period 1120 after the first time period 1110. Fig. 11C An example is shown in which the duration of the first time period 1110 and the duration of the second time period 1120 are the same as each other, but according to an embodiment, the duration of the first time period 1110 and the duration of the second time period 1120 may also be different from each other. Through the control of the processor 120 in the first time period 1110, the first capacitor 920 may be connected in series with respect to each of the input terminal 905 and the output terminal 955, and charged based on the series connection. Based on the charging, the first capacitor 920 may obtain a target voltage (e.g., about 4.15V) corresponding to the charging voltage of the battery 189 at the end of the first time period 1110. On the other hand, the current applied to the first switch 910, the current applied to the second switch 915, and the current applied to the fifth switch 935 may be changed by the charging of the first capacitor 920. On the other hand, through the control of the processor 120 in the first time period 1110, the voltage of the second capacitor 940 may be changed in the first time period 1110.

[0140] After the first capacitor 920 obtains a charging voltage (or a target voltage) through charging, the processor 120 may switch the states of the first switch 910 to the fourth switch 930 .

[0141] For example, refer to Fig. 11B, after the first capacitor 920 obtains the charging voltage (or target voltage) by charging, the processor 120 may switch the states of the first switch 910 and the fourth switch 930 to the second state, and switch the states of the second switch 915 and the third switch 925 to the first state. On the other hand, the states of the fifth switch 935 and the seventh switch 950 may remain in the first state, and the state of the sixth switch 945 may remain in the second state. Based on the switching of the states of the first switch 910 to the fourth switch 930 of the processor 120, the first capacitor 920 may be electrically disconnected from the input terminal 905, and connected in parallel with respect to the battery 189 electrically connected to the output terminal 955. Based on the switching of the states of the first switch 910 to the fourth switch 930 of the processor 120, the first capacitor 920 may be discharged. Based on the discharge, the voltage divider 310 may provide power for applying a second voltage corresponding to the charging voltage to the battery 189 through the output terminal 955. Based on the discharge of the first capacitor 420, the voltage divider 310 may obtain a current whose amplitude is greater than the maximum acceptable current amplitude of the connector 178. For example, the voltage divider 310 may apply a second voltage corresponding to the charging voltage to the battery 189 and apply a current twice as large as a first current smaller than a maximum current magnitude of the connector 178 applied from the external electronic device to the battery 189 .

[0142] For example, refer to Fig. 11C , the processor 120 may switch the states of the first switch 910 and the fourth switch 930 to the second state, and switch the states of the second switch 915 and the third switch 925 to the first state in a second time period 1120 after the first time period 1110. Through the control of the processor 120 in the second time period 1120, the first capacitor 920 may be electrically isolated from the input terminal 905, connected in parallel with the output terminal 955, and discharged based on the parallel connection. Based on the discharge, the first capacitor 920 may be discharged to a voltage (e.g., approximately 4.08V) at the end of the second time period 1120. On the other hand, the current applied to the first switch 910, the current applied to the second switch 915, and the current applied to the fifth switch 935 may be changed by the charging of the first capacitor 920. By repeatedly executing based on a time period having a duration equal to the sum of the first time period 1110 and the second time period 1120 Fig.11A and Fig. 11B With the change in electrical connection shown, the processor 120 can perform 2:1 voltage division through the voltage divider 310. The electronic device 101 of the embodiment can perform direct charging of the battery 189 based on the 2:1 voltage division ratio.

[0143] In one or more embodiments, in response to the first voltage corresponding to the charging voltage of the battery 189, based on the control of the first switch 410 to the seventh switch 450 of the processor 120, the voltage divider 310 can be used to Fig. 9 The voltage divider 310 shown in the figure supports a 1:1 voltage division ratio. For example, although not shown in the figure, the processor 120 can maintain the states of the first switch 910, the second switch 915, the third switch 925 and the seventh switch 950 in the first state and the states of the fourth switch 430, the fifth switch 935 and the sixth switch 945 in the second state based on the data received from the external electronic device and recognizing that the first voltage corresponds to the charging voltage of the battery 189. Based on maintenance, the input terminal 905 can be directly connected to the output terminal 955. Based on the direct connection between the input terminal 905 and the output terminal 955, the first voltage applied from the external electronic device can be applied to the battery 189.

[0144] As described above, the electronic device 101 of one or more embodiments may include a voltage divider 310 capable of charging the battery 189 through high-speed charging performance while improving compatibility by adaptively supporting a 3:1 voltage divider ratio, a 2:1 voltage divider ratio, and a 1:1 voltage divider ratio.

[0145] According to some embodiments, an electronic device may include: a rechargeable battery; a connector configured to connect the electronic device to an external electronic device; a voltage divider including a plurality of capacitors and a plurality of switches for switching an electrical path between each of the plurality of capacitors and the battery, wherein the voltage divider is configured to provide three or more voltage division ratios; and a processor operably coupled to the voltage divider and the connector. Wherein the processor is configured to: receive an indicator indicating a first voltage of a first power from an external electronic device; select a voltage division ratio from three or more voltage division ratios based at least in part on the indicator; and control the plurality of switches based on the selected voltage division ratio. And wherein the voltage divider is configured to: charge the battery with a second voltage by dividing the first voltage according to the selected voltage division ratio.

[0146] According to some embodiments, the plurality of capacitors include a first capacitor and a second capacitor, wherein the voltage divider includes an input terminal electrically connected to the connector and an output terminal electrically connected to the battery. The processor is configured to: when the first voltage is substantially three times the charging voltage of the battery, control the plurality of switches to electrically connect the first capacitor and the second capacitor in series between the input terminal and the output terminal relative to the battery, and after the first capacitor is charged to the first charging voltage and the second charging capacitor is charged to the second charging voltage, electrically disconnect the input terminal from the first capacitor, the second capacitor, and the output terminal, and electrically connect the first capacitor and the second capacitor in parallel relative to the output terminal.

[0147] According to some embodiments, the processor is configured to control the switch to form a short circuit between the input terminal and the output terminal when the first voltage substantially corresponds to a charging voltage of the battery.

[0148] According to certain embodiments, the processor is configured to, when the first voltage is substantially twice the charging voltage of the battery, control a plurality of switches to electrically connect the first capacitor in series between the input terminal and the output terminal relative to the battery, and after the first capacitor is charged to the first charging voltage, electrically disconnect the input terminal from the first capacitor and the output terminal, and electrically connect the first capacitor in parallel relative to the battery.

[0149] According to certain embodiments, the processor is configured to control the plurality of switches to electrically connect the second capacitor in series between the input terminal and the output terminal relative to the battery when the first voltage is substantially twice the charging voltage of the battery, and to electrically disconnect the output terminal and the second capacitor after the second capacitor is charged to the second charging voltage, and to electrically connect the second capacitor to the output terminal in parallel relative to the battery.

[0150] According to some embodiments, the input terminal is further connected to an input capacitor.

[0151] According to certain embodiments, the processor is configured to initialize the first capacitor and to implement the second capacitor using a linear regulator electrically connected to the voltage divider.

[0152] According to some embodiments, the first power received from the external electronic device via the connector is used to apply a first voltage and a first current less than a maximum current to the connector. And the voltage divider is configured to: apply a second voltage and a current substantially three times the first current to the battery when the first voltage is substantially three times the charging voltage of the battery; apply a second voltage and a current substantially twice the first current to the battery when the first voltage is substantially twice the charging voltage of the battery; and apply the second voltage and the first current to the battery in response to a first voltage substantially corresponding to the charging voltage of the battery.

[0153] According to certain embodiments, the processor is configured to control each of the plurality of switches based on a specified time period.

[0154] According to certain embodiments, the charging path switching circuit is operably coupled to a processor, and the processor is configured to: based on an indicator, identify whether the first voltage can be processed using a voltage divider; and control the charging path switching circuit based on identifying that the first voltage cannot be processed using the voltage divider, and wherein the charging path switching circuit is configured to provide the first power received from the external electronic device via the connector to another power management circuit different from the voltage divider.

[0155] In an embodiment, the voltage divider may include an input terminal electrically connected to an external electronic device via a connector (e.g., connector 178), a first switch (e.g., first switch 410), a second switch (e.g., second switch 415), a first capacitor (e.g., first capacitor 420), a third switch (e.g., third switch 425), a fourth switch (e.g., fourth switch 430), a fifth switch (e.g., fifth switch 435), a second capacitor, a sixth switch (e.g., sixth switch 445), a seventh switch (e.g., seventh switch 450), a first node (e.g., first node 461), a second node (e.g., second node 462), a third node (e.g., third node 463), a fourth node (e.g., fourth node 464), and an output terminal (e.g., output terminal 455) electrically connected to a battery and being a fifth node (e.g., fifth node). The first switch may be set between the input terminal and the first node, the first capacitor may be set between the first node and the second node, the second switch may be set between the first node and the third node, the third switch may be set between the second node and the first ground node (for example, the first ground node 462-1), the fourth switch may be set between the second node and the third node, the fifth switch may be set between the third node and the fifth node, the second capacitor may be set between the third node and the fourth node, the sixth switch may be set between the fourth node and the second ground node (for example, the second ground node 464-1), the seventh switch may be set between the fourth node and the fifth node, and the battery may be set between the fifth node and the third ground node (for example, the third ground node 465-1).

[0156] In an embodiment, the processor is configured to electrically connect the input terminal and the first capacitor by switching the state of the first switch to the first state, and electrically connect the first capacitor and the second capacitor by switching the state of the fourth switch to the first state, and electrically connect the second capacitor and the output terminal by switching the state of the seventh switch to the first state in response to the first voltage being substantially three times (or between 2.75 and 3.25 times) the charging voltage of the battery. The voltage divider can be configured to charge the first capacitor and the second capacitor connected in series with respect to the input terminal and the output terminal based on the switching of the states of the first switch, the fourth switch, and the seventh switch of the processor in response to the first voltage being substantially three times (or between 2.75 and 3.25 times) the charging voltage of the battery.

[0157] In one embodiment, the processor may be configured to, in response to the first voltage being substantially three times (or between 2.75 and 3.25 times) the battery charging voltage, switch the first state of the first switch, the fourth switch, and the seventh switch to the second state, switch the state of the second switch from the second state to the first state, switch the state of the third switch from the second state to the first state, switch the state of the fifth switch from the second state to the first state, and switch the state of the sixth switch from the second state to the first state. After each of the first capacitor and the second capacitor obtains the charging voltage through the charging of the first capacitor and the charging of the second capacitor, the input terminal is electrically disconnected from the output terminal, the first capacitor and the second capacitor, and the first capacitor having the charging voltage and the second capacitor having the charging voltage are connected to the output terminal in parallel with respect to the battery. The voltage divider may be configured to perform charging of the battery by providing the second power to the battery based on the discharge of the first capacitor and the second capacitor connected in parallel with respect to the battery.

[0158] In an embodiment, the processor may be configured to electrically connect the input terminal and the first capacitor by switching the state of the first switch to the first state, and electrically connect the first capacitor and the output terminal by switching the state of the fourth switch to the first state in response to the first voltage being substantially twice (or between 1.75 and 2.25 times) the battery charging voltage, while maintaining the states of the fifth switch and the sixth switch in the first state and maintaining the state of the seventh switch in the second state. The voltage divider may be configured to charge the first capacitor connected in series with respect to the input terminal and the output terminal based on maintaining the states of the fifth switch, the sixth switch, and the seventh switch of the processor and switching the states of the first switch and the fourth switch of the processor in response to the first voltage being substantially twice (or between 1.75 and 2.25 times) the battery charging voltage.

[0159] In an embodiment, the processor may be configured to switch the first state of the first switch and the fourth switch to the second state, and switch the state of the second switch from the second state to the first state, and switch the state of the third switch from the second state to the first state in response to the first voltage being substantially twice (or between 1.75 and 2.25 times) the battery charging voltage. After the first capacitor obtains the charging voltage by charging the first capacitor, the input terminal is electrically disconnected from the output terminal and the first capacitor, and the first capacitor having the charging voltage is connected to the output terminal in parallel with the battery. The voltage divider may be configured to perform charging of the battery by providing the second power to the battery based on the discharge of the first capacitor connected in parallel with the battery.

[0160] In an embodiment, the processor may be configured to electrically connect the input terminal and the output terminal by maintaining the states of the first switch, the second switch, the third switch, the fifth switch, and the sixth switch in the first state in response to a first voltage corresponding to a charging voltage of the battery. The voltage divider may be configured to perform charging of the battery by providing the first power to the battery based on applying the first voltage to the output terminal.

[0161] In one embodiment, the processor can be configured to, in response to the first voltage being substantially twice (or between 1.75 and 2.25 times) the battery charge voltage, electrically connect the input terminal and the second capacitor by switching the state of the second switch to the first state, and electrically connect the second capacitor and the output terminal by switching the state of the seventh switch to the first state while maintaining the states of the first switch and the third switch in the first state and maintaining the state of the fourth switch in the second state. The voltage divider can be configured to, in response to the first voltage being substantially twice (or between 1.75 and 2.25 times) the battery charge voltage, charge the second capacitor in series with respect to the input terminal and the output terminal based on maintaining the states of the first switch, the third switch, and the fourth switch of the processor and switching the states of the second switch and the seventh switch of the processor.

[0162] In an embodiment, the processor may be configured to switch the first state of the second switch and the seventh switch to the second state, and switch the state of the fifth switch from the second state to the first state, and switch the state of the sixth switch from the second state to the first state in response to the first voltage being substantially twice (or between 1.75 and 2.25 times) the battery charging voltage. After the second capacitor obtains the charging voltage by charging the second capacitor, the input terminal is electrically disconnected from the output terminal and the second capacitor, and the second capacitor having the charging voltage is connected to the output terminal in parallel with the battery. The voltage divider may be configured to perform charging of the battery by providing the second power to the battery based on the discharge of the second capacitor connected in parallel with the battery.

[0163] In an embodiment, each of the first to seventh switches may include a metal oxide semiconductor field effect transistor (MOSFET).

[0164] In an embodiment, the voltage divider may include an input terminal (e.g., input terminal 905) electrically connected to an external electronic device via a connector, a first switch (e.g., first switch 910), a second switch (e.g., second switch 915), a first capacitor (e.g., first capacitor 920), a third switch (e.g., third switch 925), a fourth switch (e.g., fourth switch 930), a fifth switch (e.g., fifth switch 935), a second capacitor (second capacitor 940), a sixth switch (e.g., sixth switch 945), a seventh switch (e.g., seventh switch 950), a first node (e.g., first node 961), a second node (e.g., second node 962), a third node (e.g., third node 963), a fourth node (e.g., fourth node 964), and an output terminal (e.g., output terminal 955) electrically connected to a battery and being a fifth node (e.g., fifth node 965). The first switch may be set between the input terminal and the first node, the second switch may be set between the first node and the fifth node, the first capacitor may be set between the first node and the second node, the third switch may be set between the second node and the first ground node (for example, the first ground node 962-1), the fourth switch may be set between the second node and the third node, the fifth switch may be set between the third node and the fifth node, the second capacitor may be set between the third node and the fourth node, the sixth switch may be set between the fourth node and the fifth node, the seventh switch may be set between the fourth node and the second ground node (for example, the second ground node 964-1), and the battery may be set between the fifth node and the third ground node (for example, the third ground node 965-1).

[0165] Fig.12 FIG. 1 is a flowchart showing an operation of performing direct charging by adaptively performing voltage division by a voltage divider according to one or more embodiments. The operation may be performed by Figure 1 Or the processor 120 and the voltage divider 310 shown in FIG. 3 may be used for execution.

[0166] refer to Fig.12 In operation 1205, in order to directly charge the battery 189 from an external electronic device (e.g., a travel adapter (TA) or a power adapter (PA)) via the connector 178, the processor 120 may acquire data related to a first voltage to be applied to the electronic device 101 from the external electronic device. For example, in response to the type of the connector 178 being a USB type-c, the data may be acquired based on a USB PD communication protocol.

[0167] In operation 1210, based on the acquired data, the processor 120 may control a plurality of switches (eg, Figure 4 The first switch 410 to the seventh switch 450, or Fig. 9For example, the processor 120 may control each of the plurality of switches to obtain a second voltage corresponding to the charging voltage by dividing the first voltage by a voltage division ratio corresponding to data among three or more voltage division ratios supportable by the voltage divider 310.

[0168] In operation 1215, the voltage divider 310 may obtain a second voltage corresponding to the charging voltage of the battery by dividing the first voltage according to a voltage division ratio identified among three or more voltage division ratios based on the control of each of the plurality of switches of the processor 120. For example, by controlling each of the plurality of switches of the processor 120, a plurality of capacitors (e.g., Figure 4 The first capacitor 420 and the second capacitor 440, or Fig. 9 The first capacitor 920 and the second capacitor 940 of the processor 120 are connected in series with each of the input terminal and the output terminal of the voltage divider 310, and the voltage divider 310 can charge each of the plurality of capacitors. After each of the plurality of capacitors obtains the charging voltage of the battery 189 by charging, the voltage divider 310 can connect the plurality of capacitors having the charging voltage of the battery 189 by charging in parallel with respect to the battery 189 based on the control of each of the plurality of switches of the processor 120. Based on the discharge of each of the plurality of capacitors, the voltage divider 310 can obtain a second voltage corresponding to the charging voltage of the battery 189. On the other hand, based on the discharge of each of the plurality of capacitors, the voltage divider 310 can obtain a current having an amplitude greater than the maximum acceptable current amplitude of the connector 178.

[0169] In operation 1220, the voltage divider 310 may perform direct charging of the battery 189 by providing power for applying the acquired second voltage to the battery 189. For example, by applying the second voltage and a current having a magnitude greater than the maximum acceptable current magnitude of the connector 178 to the battery 189, the voltage divider 310 may perform direct charging.

[0170] As described above, the electronic device 101 of one or more embodiments can effectively charge the battery 189 by interlocking with various types of external electronic devices, which is achieved by dividing a first voltage applied from the external electronic device through a voltage divider supporting multiple voltage division ratios to obtain a second voltage, and obtaining a current amplified to the inverse of the ratio between the first voltage and the second voltage.

[0171] The methods of the embodiments mentioned in the claims or the specification of the present disclosure may be implemented in the form of hardware or hardware programmed with software.

[0172] In some embodiments, a computer-readable storage medium storing one or more programs (i.e., software modules) may be provided. The one or more programs stored in the computer-readable storage medium are configured to be executable by one or more processors of an electronic device. The one or more programs include instructions for enabling an electronic device to perform the methods of the embodiments set forth in the claims or specification of the present disclosure.

[0173] These programs (i.e., software modules and / or software) may be stored in random access memory (RAM), non-volatile memory including flash memory, read-only memory (ROM), electrically erasable programmable ROM (EEPROM), magnetic disk storage, compact disk-ROM (CD-ROM), digital versatile disk (DVD), another form of optical storage device and / or magnetic tape. Alternatively, the programs may be stored in a memory configured as a combination of some or all of them. In addition, each configured memory may also include multiple.

[0174] In addition, the program can be stored in an attachable storage device, which can be accessed through a communication network such as the Internet, an intranet, a local area network (LAN), a wireless local area network (WLAN), or a storage area network (SAN), or a communication network configured in combination thereof. The storage device can access the device executing the embodiments of the present disclosure through an external port. In addition, an independent storage device on a communication network can also access the device executing the embodiments of the present disclosure.

[0175] In the foregoing specific embodiments of the present disclosure, the constituent elements included in the present disclosure have been expressed in the singular or plural, depending on the specific embodiments proposed. However, for the sake of convenience of description, the expression in the singular or plural form suitable for a given situation is selected, and the present disclosure is not limited to singular or plural components. Even components expressed in plural form can also be constructed in singular form, or even components expressed in singular form can also be constructed in plural form.

[0176] Although the present disclosure has been described in detail with respect to specific embodiments, it is undoubted that various modifications are available without departing from the scope of the present disclosure. Therefore, the scope of the present disclosure should not be limited to and by the described embodiments, and should not only be limited by the claims mentioned below, but also by the equivalents of these claims.

Claims

1. An electronic device, comprising: Rechargeable batteries; a connector configured to connect the electronic device to an external electronic device; a voltage divider, the voltage divider comprising a plurality of capacitors, a plurality of switches, an input terminal electrically connected to the connector, and an output terminal electrically connected to the rechargeable battery, the plurality of capacitors comprising a first capacitor and a second capacitor, the plurality of switches being used to switch an electrical path between each of the plurality of capacitors and the rechargeable battery, wherein the voltage divider is configured to provide three or more voltage division ratios; and a processor operably coupled to the voltage divider and the connector, Wherein, the processor is configured to: receiving data indicating a first voltage of a first power from the external electronic device, selecting a voltage divider ratio from among the three or more voltage divider ratios based at least in part on the data, and The plurality of switches are controlled based on the selected voltage division ratio, wherein when the first voltage is three times the charging voltage of the rechargeable battery, the plurality of switches are controlled to electrically connect the first capacitor and the second capacitor in series between the input terminal and the output terminal relative to the rechargeable battery, and after the first capacitor is charged to the first charging voltage and the second capacitor is charged to the second charging voltage, the input terminal is electrically disconnected from the first capacitor, the second capacitor, and the output terminal, and the first capacitor and the second capacitor are electrically connected in parallel relative to the output terminal, and Wherein, the voltage divider is configured as: The rechargeable battery is charged with a second voltage by dividing the first voltage according to a selected voltage division ratio.

2. The electronic device according to claim 1, in, The processor is configured to: When the first voltage corresponds to the charging voltage of the rechargeable battery, the plurality of switches are controlled to form a short circuit between the input terminal and the output terminal.

3. The electronic device according to claim 2, in, The processor is configured to: When the first voltage is twice the charging voltage of the rechargeable battery, the multiple switches are controlled to electrically connect the first capacitor in series between the input terminal and the output terminal relative to the rechargeable battery, and after the first capacitor is charged to the first charging voltage, the input terminal is electrically disconnected from the first capacitor and the output terminal, and the first capacitor is electrically connected in parallel with the rechargeable battery.

4. The electronic device according to claim 3, in, The processor is configured to: When the first voltage is twice the charging voltage of the rechargeable battery, the multiple switches are controlled to electrically connect the second capacitor in series between the input terminal and the output terminal relative to the rechargeable battery, and after the second capacitor is charged to a second charging voltage, the output terminal and the second capacitor are electrically disconnected, and the second capacitor is electrically connected to the output terminal in parallel with the rechargeable battery.

5. The electronic device according to claim 1, in, The input terminal is also connected to an input capacitor.

6. The electronic device according to claim 1, in, The processor is configured to initialize the first capacitor and the second capacitor using a linear regulator electrically connected to the voltage divider.

7. The electronic device according to claim 4, in, The first power received from the external electronic device via the connector is used to apply the first voltage and a first current less than a maximum current to the connector, and Wherein, the voltage divider is configured as: when the first voltage is three times the charging voltage of the rechargeable battery, applying the second voltage and a current three times the first current to the rechargeable battery; When the first voltage is twice the charging voltage of the rechargeable battery, applying the second voltage and a current twice the first current to the rechargeable battery; and When the first voltage corresponds to a charging voltage of the rechargeable battery, the second voltage and the first current are applied to the rechargeable battery.

8. The electronic device according to claim 1, in, The processor is configured to control each of the plurality of switches based on a specified time period.

9. The electronic device according to claim 1, The electronic device further includes a charging path switching circuit operatively coupled to the processor, in, The processor is configured to: Based on the data, identifying whether the voltage divider can be used to process the first voltage; and controlling the charging path switching circuit based on identifying that the first voltage cannot be processed using the voltage divider, The charging path switching circuit is configured to provide the first power received from the external electronic device via the connector to another power management circuit different from the voltage divider.

10. The electronic device according to claim 1, wherein: The input end is electrically connected to the external electronic device via the connector, and the voltage divider further comprises: First switch; Second switch; The third switch; Fourth switch; Fifth switch; The sixth switch; The seventh switch; First node; Second node; The third node; and Fourth node; wherein the output terminal is the fifth node, and Among them, the first switch is arranged between the input end and the first node, the first capacitor is arranged between the first node and the second node, the second switch is arranged between the first node and the third node, the third switch is arranged between the second node and the first grounding node, the fourth switch is arranged between the second node and the third node, the fifth switch is arranged between the third node and the fifth node, the second capacitor is arranged between the third node and the fourth node, the sixth switch is arranged between the fourth node and the second grounding node, the seventh switch is arranged between the fourth node and the fifth node, and the rechargeable battery is arranged between the fifth node and the third grounding node.

11. The electronic device according to claim 10, in, The processor is configured to: When the first voltage is three times the charging voltage of the rechargeable battery, electrically connecting the input terminal and the first capacitor by switching the state of the first switch to a first state; electrically connecting the first capacitor and the second capacitor by switching the state of the fourth switch to the first state; as well as The second capacitor and the output terminal are electrically connected by switching the state of the seventh switch to the first state.

12. The electronic device according to claim 11, in, The processor is configured to: When the first voltage is three times the charging voltage of the rechargeable battery, After the first capacitor is charged to the first charging voltage and the second capacitor is charged to the second charging voltage, by switching the first state of the first switch, the fourth switch, and the seventh switch to the second state, switching the state of the second switch from the second state to the first state, switching the state of the third switch from the second state to the first state, switching the state of the fifth switch from the second state to the first state, and switching the state of the sixth switch from the second state to the first state, the input terminal is electrically disconnected from the output terminal, the first capacitor, and the second capacitor, and the first capacitor and the second capacitor are connected to the output terminal in parallel with respect to the rechargeable battery.

13. The electronic device according to claim 10, in, The processor is configured to: When the first voltage is twice the charging voltage of the rechargeable battery, At the same time, the states of the fifth switch and the sixth switch are maintained in the first state and the state of the seventh switch is maintained in the second state, the input end and the first capacitor are electrically connected by switching the state of the first switch to the first state, and the first capacitor and the output end are electrically connected by switching the state of the fourth switch to the first state.

14. The electronic device according to claim 13, in, The processor is configured to: When the first voltage is twice the charging voltage of the rechargeable battery, After the first capacitor is charged to a first charging value, by switching the first states of the first switch and the fourth switch to the second state, switching the state of the second switch from the second state to the first state, and switching the state of the third switch from the second state to the first state, the input terminal is electrically disconnected from the output terminal and the first capacitor, and the first capacitor is connected to the output terminal in parallel with respect to the rechargeable battery.

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