Electronic device and method for charging same

Abstract

An electronic device according to one embodiment may comprise: a connector including a power pin for supplying or receiving power to / from an external power source; a first charging circuit connected to a first battery; a second charging circuit connected to a second battery; a power management module including a first port connected to the power pin, a second port connected to a connection node of the first battery and the first charging circuit, and a third port connected to a system power line; and a first switch for selectively connecting the second charging circuit to the first port or the third port. Other various embodiments may be possible.

Description

Electronic devices and charging methods thereof

[0001] Various embodiments of the present invention relate to an electronic device and a charging method thereof.

[0002] The electronic device can perform power delivery (PD) communication with a source (e.g., a travel adapter) and receive power from the source.

[0003] The electronic device can act as a source, perform PD communication with an external electronic device (or other electronic devices), and supply power to the external electronic device.

[0004] When charging electronic devices, battery safety requires charging and / or discharging within the allowable current of each battery. Parallel batteries may require a current limiter for each battery to ensure charging and / or discharging within their allowable current. However, using multiple current limiters for each battery increases the direct current resistance (DCR) of the charging path, increasing system complexity and potentially increasing mounting area and cost.

[0005] The above information may be provided as background art to aid in understanding the present disclosure. No claim or determination is made as to whether any of the above is applicable as prior art related to the present disclosure.

[0006] The technical problems to be achieved in this document are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0007] An electronic device according to one embodiment may include a connector including a power pin for supplying or receiving power in relation to an external power supply, a first charging circuit connected to a first battery, a second charging circuit connected to a second battery, a power management module including a first port connected to the power pin, a second port connected to a connection node of the first battery and the first charging circuit, and a third port connected to a system power line, and a first switch for selectively connecting the second charging circuit to the first port or the third port.

[0008] An electronic device according to one embodiment may include a connector including a power pin for supplying or receiving power in relation to an external power supply, a first charging circuit connected to a first battery, a second charging circuit connected to a second battery in parallel with the first battery, a power management module including a first port connected to the power pin, a second port connected to a connection node of the first charging circuit and the second charging circuit, and a third port connected to a system power line, a first switch for selectively connecting the first charging circuit to the first port or the second port, and a second switch for selectively connecting the second charging circuit to the first port or the second port.

[0009] An electronic device according to one embodiment includes a connector including a power pin for supplying or receiving power in relation to an external power supply, a first charging circuit connected to a first battery, a limiter connected to a second battery in parallel with the first battery, and a power management module including a first port connected to the power pin, a second port connected to a connection node of the first battery and the limiter, and a third port connected to a system power line, wherein the charging circuit may include a controller for controlling the limiter.

[0010] FIG. 1 is a block diagram of an electronic device within a network environment, according to one embodiment.

[0011] FIG. 2 is a block diagram of a power management module and a battery according to one embodiment.

[0012] FIG. 3 illustrates an example of a charging environment of an electronic device according to one embodiment.

[0013] FIG. 4 is a block diagram illustrating an electronic device according to one embodiment.

[0014] FIGS. 5A and 5B are diagrams illustrating charging and discharging paths of an electronic device according to one embodiment.

[0015] FIG. 6 is a block diagram illustrating an electronic device according to one embodiment.

[0016] FIGS. 7A and 7B are diagrams illustrating charging and discharging paths of an electronic device according to one embodiment.

[0017] FIG. 8 is a block diagram illustrating an electronic device according to one embodiment.

[0018] FIGS. 9A and 9B are diagrams illustrating charging and discharging paths of an electronic device according to one embodiment.

[0019] FIG. 10 is a block diagram illustrating an electronic device according to one embodiment.

[0020] FIGS. 11A and 11B are diagrams illustrating charging and discharging paths of an electronic device according to one embodiment.

[0021] Hereinafter, embodiments will be described in detail with reference to the attached drawings. In the description with reference to the attached drawings, identical components are assigned the same reference numerals regardless of the drawing numbers, and redundant descriptions thereof will be omitted.

[0022]

[0023] FIG. 1 is a block diagram of an electronic device (101) within a network environment (100) according to various embodiments. Referring to FIG. 1, in the network environment (100), the electronic device (101) may communicate with an electronic device (102) via a first network (198) (e.g., a short-range wireless communication network), or may communicate with at least one of an electronic device (104) or a server (108) via a second network (199) (e.g., a long-range wireless communication network). According to one embodiment, the electronic device (101) may communicate with the electronic device (104) via the server (108). According to one embodiment, the electronic device (101) may include a processor (120), a memory (130), an input module (150), an audio output module (155), a display module (160), an audio module (170), a sensor module (176), an interface (177), a connection terminal (178), a haptic module (179), a camera module (180), a power management module (188), a battery (189), a communication module (190), a subscriber identification module (196), or an antenna module (197). In some embodiments, the electronic device (101) may omit at least one of these components (e.g., the connection terminal (178)), or may have one or more other components added. In some embodiments, some of these components (e.g., the sensor module (176), the camera module (180), or the antenna module (197)) may be integrated into one component (e.g., the display module (160)).

[0024] The processor (120) may, for example, execute software (e.g., a program (140)) to control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) and perform various data processing or calculations. According to one embodiment, as at least a part of the data processing or calculations, the processor (120) may store commands or data received from other components (e.g., a sensor module (176) or a communication module (190)) in a volatile memory (132), process the commands or data stored in the volatile memory (132), and store result data in a non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., a central processing unit or an application processor) or a secondary processor (123) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor)) that can operate independently or together therewith. For example, if the electronic device (101) includes a main processor (121) and a secondary processor (123), the secondary processor (123) may be configured to use less power than the main processor (121) or to be specialized for a specified function. The secondary processor (123) may be implemented separately from the main processor (121) or as a part thereof.

[0025] According to one embodiment, the processor (120) may be implemented as a circuit (e.g., a processing circuit) such as a system on chip (SoC) or an integrated circuit (IC). The processor (120) may include one or more processors. For example, the processor (120) may include a combination of one or more processors such as a CPU, a GPU, an MPU, an AP, and a CP. The instructions stored in the memory (130) may be executed by one processor to cause the electronic device (101) to perform and / or control the operations of the electronic device (101) to be described with reference to FIGS. 2 to 11B. The instructions stored in the memory (130) may be executed by multiple processors to cause the electronic device (101) to perform and / or control the operations of the electronic device (101) to be described with reference to FIGS.

[0026] The auxiliary processor (123) may control at least a portion of functions or states associated with at least one component (e.g., a display module (160), a sensor module (176), or a communication module (190)) of the electronic device (101), for example, on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (123) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (180) or a communication module (190)). In one embodiment, the auxiliary processor (123) (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. This learning can be performed, for example, on the electronic device (101) itself where the artificial intelligence model is executed, or can be performed through a separate server (e.g., server (108)). The learning algorithm can include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model can include multiple artificial neural network layers.The artificial neural network may be one of a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to, or alternatively to, a hardware structure, an artificial intelligence model may include a software structure.

[0027] The memory (130) can store various data used by at least one component (e.g., the processor (120) or the sensor module (176)) of the electronic device (101). The data can include, for example, software (e.g., the program (140)) and input data or output data for commands related thereto. The memory (130) can include a volatile memory (132) or a non-volatile memory (134). The memory (130) can include one or more memories. The instructions stored in the memory (130) can be stored in one memory. The instructions stored in the memory (130) can be divided and stored in multiple memories. The instructions stored in the memory (130) can be executed by the processor (120) to cause the electronic device (101) to perform and / or control the operations of the electronic device (101) to be described with reference to FIGS. 2 to 11B.

[0028] The program (140) may be stored as software in the memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0029] The input module (150) can receive commands or data to be used in a component of the electronic device (101) (e.g., a processor (120)) from an external source (e.g., a user) of the electronic device (101). The input module (150) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0030] The audio output module (155) can output audio signals to the outside of the electronic device (101). The audio output module (155) can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. In one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0031] The display module (160) can visually provide information to an external device (e.g., a user) of the electronic device (101). The display module (160) may include, for example, a display, a holographic device, or a projector, and a control circuit for controlling the device. According to one embodiment, the display module (160) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of a force generated by the touch. The display module (160) may be implemented with an illustrative foldable structure and / or a rollable structure. For example, the size of the display screen of the display module (160) may be reduced when folded, and may be expanded when unfolded.

[0032] The audio module (170) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150), output sound through the sound output module (155), or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (101).

[0033] The sensor module (176) can detect the operating status (e.g., power or temperature) of the electronic device (101) or the external environmental status (e.g., user status) and generate an electrical signal or data value corresponding to the detected status. According to one embodiment, the sensor module (176) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0034] The interface (177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (101) with an external electronic device (e.g., the electronic device (102)). In one embodiment, the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0035] The connection terminal (178) may include a connector through which the electronic device (101) may be physically connected to an external electronic device (e.g., electronic device (102)). According to one embodiment, the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0036] A haptic module (179) can convert electrical signals into mechanical stimuli (e.g., vibration or movement) or electrical stimuli that a user can perceive through tactile or kinesthetic sensations. In one embodiment, the haptic module (179) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0037] The camera module (180) can capture still images and videos. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0038] The power management module (188) can manage power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented, for example, as at least a part of a power management integrated circuit (PMIC).

[0039] A battery (189) may power at least one component of the electronic device (101). In one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0040] The communication module (190) may support the establishment of 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 the performance of communication through the established communication channel. The communication module (190) may operate independently from the processor (120) (e.g., application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one 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 module). Among these communication modules, the corresponding communication module can communicate with an external electronic device (104) via a first network (198) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (199) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules can be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (192) can verify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) by using subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (196).

[0041] The wireless communication module (192) can support 5G networks and next-generation communication technologies following the 4G network, such as NR access technology (new radio access technology). The NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (192) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (192) can support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module (192) can support various requirements specified in the electronic device (101), an external electronic device (e.g., the electronic device (104)), or a network system (e.g., the second network (199)). According to one embodiment, the wireless communication module (192) can support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 dB or less) for mMTC realization, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 1 ms or less for round trip) for URLLC realization.

[0042] The antenna module (197) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). According to one embodiment, the antenna module (197) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). According to one embodiment, the antenna module (197) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as the first network (198) or the second network (199), may be selected from the plurality of antennas by, for example, the communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device through the selected at least one antenna. According to some embodiments, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (197).

[0043] According to various embodiments, the antenna module (197) may form a mmWave antenna module. According to one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent to a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high-frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent to a second side (e.g., a top side or a side side) of the printed circuit board and capable of transmitting or receiving signals in the designated high-frequency band.

[0044] At least some of the above components can be interconnected and exchange signals (e.g., commands or data) with each other via a communication method between peripheral devices (e.g., a bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)).

[0045] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) via a server (108) connected to a second network (199). Each of the external electronic devices (102 or 104) may be the same or a different type of device as the electronic device (101). According to one embodiment, all or part of the operations executed in the electronic device (101) may be executed in one or more of the external electronic devices (102, 104, or 108). For example, when the electronic device (101) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (101) may, instead of or in addition to executing the function or service itself, request one or more external electronic devices to perform the function or at least a part of the service. One or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may process the result as is or additionally and provide it as at least a portion of a response to the request. For this purpose, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device (101) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In another embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server utilizing machine learning and / or a neural network. According to one embodiment, the external electronic device (104) or the server (108) may be included in the second network (199).The electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0046]

[0047] FIG. 2 is a block diagram (200) of a power management module and a battery according to various embodiments.

[0048] Referring to FIG. 2, the power management module (188) may include a charging circuit (210), a power regulator (220), or a fuel gauge (230). The charging circuit (210) may charge the battery (189) using power supplied from an external power source for the electronic device (101). According to one embodiment, the charging circuit (210) may select a charging method (e.g., normal charging or rapid charging) based on at least some of the type of the external power source (e.g., power adapter, USB, or wireless charging), the amount of power that can be supplied from the external power source (e.g., about 20 watts or more), or the properties of the battery (189), and may charge the battery (189) using the selected charging method. The external power source may be connected to the electronic device (101) by a wire, for example, through a connection terminal (178), or may be connected wirelessly through an antenna module (197).

[0049] The power regulator (220) can generate a plurality of powers having different voltages or different current levels by adjusting the voltage level or current level of the power supplied from, for example, an external power source or a battery (189). The power regulator (220) can adjust the power of the external power source or the battery (189) to a voltage or current level suitable for each of the components included in the electronic device (101). According to one embodiment, the power regulator (220) can be implemented in the form of an LDO (low drop out) regulator or a switching regulator. The fuel gauge (230) can measure usage status information for the battery (189) (e.g., capacity, number of charge / discharge cycles, voltage, or temperature of the battery (189).

[0050] The power management module (188) can determine charging state information (e.g., life, overvoltage, undervoltage, overcurrent, overcharge, overdischarge, overheat, short circuit, or swelling) related to charging of the battery (189) based at least in part on the measured usage state information, for example, using the charging circuit (210), the power regulator (220), or the fuel gauge (230). The power management module (188) can determine whether the battery (189) is normal or abnormal based at least in part on the determined charging state information. If the state of the battery (189) is determined to be abnormal, the power management module (188) can adjust charging of the battery (189) (e.g., reducing the charging current or voltage, or stopping charging). According to one embodiment, at least some of the functions of the power management module (188) can be performed by an external control device (e.g., the processor (120)).

[0051] The battery (189) may, according to one embodiment, include a battery protection circuit module (PCM) (240). The battery protection circuit (240) may perform one or more of various functions (e.g., a pre-cut function) to prevent performance degradation or damage to the battery (189). The battery protection circuit (240) may additionally or alternatively be configured as at least a part of a battery management system (BMS) that may perform various functions including cell balancing, capacity measurement of the battery, charge / discharge cycle measurement, temperature measurement, or voltage measurement.

[0052] According to one embodiment, at least a portion of the usage status information or the charging status information of the battery (189) may be measured using a corresponding sensor (e.g., a temperature sensor) among the sensor modules (176), a fuel gauge (230), or a power management module (188). According to one embodiment, the corresponding sensor (e.g., a temperature sensor) among the sensor modules (176) may be included as a part of the battery protection circuit (240), or may be placed near the battery (189) as a separate device.

[0053]

[0054] FIG. 3 illustrates an example of a charging environment of an electronic device according to one embodiment.

[0055] Referring to FIG. 3, the charging environment may include a power source device (e.g., a travel adapter (TA)) (310) and an electronic device (300) (e.g., the electronic device (101) of FIG. 1).

[0056] According to one embodiment, the electronic device (300) may include, but is not limited to, a smartphone, a smartwatch, smart glasses, or a laptop. Smart glasses may provide a user with virtual reality, augmented reality, or mixed reality through a display.

[0057] According to one embodiment, the power supply (310) may support USB power delivery (PD). Without being limited thereto, the power supply (310) may support USB PD and programmable power supply (PPS).

[0058] According to one embodiment, the electronic device (300) may include a connection terminal (301) (e.g., connection terminal (178) of FIG. 1). In one embodiment, one end of a cable of a power supply (310) may be inserted into the connection terminal (301). The connection terminal (301) may include, for example, a USB Type-C connector, but is not limited thereto. The electronic device (300) may distinguish the type of the power supply (310) connected through the connection terminal (301). For example, the electronic device (300) may distinguish the type of the power supply (310) connected to the electronic device (300) (e.g., the type of the power supply depending on whether PPS is supported) through a MUX IC (multiplexer integrated circuit) and / or a CCPD IC (communication and control for power delivery integrated circuit).

[0059] According to one embodiment, the power supply device (310) can be electrically connected to the power supply device (320) and can transmit or supply power supplied from the power supply device (320) to the electronic device (300). In one embodiment, the power supply device (310) can receive AC power from the power supply device (320), convert it into DC power, and transmit or supply the converted DC power to the electronic device (300).

[0060]

[0061] FIG. 4 is a block diagram illustrating an electronic device according to one embodiment.

[0062] Referring to FIG. 4, according to one embodiment, an electronic device (400) (e.g., the electronic device (101) of FIG. 1, the electronic device (300) of FIG. 3) may be a dual-role-power (DRP) device. A DRP device may represent a device that can operate as a source that supplies power or as a sink that receives power from a source. In the example illustrated in FIG. 4, a power supply device (410) (e.g., the power supply device (310) of FIG. 3) may operate as a source, and the electronic device (400) may operate as a sink.

[0063] According to one embodiment, the electronic device (400) may include a connector (401) (e.g., the connection terminal (178) of FIG. 1, the connection terminal (301) of FIG. 3), a power management module (402) (e.g., the power management module (188) of FIG. 1), a first battery (408) (e.g., the battery (189) of FIG. 1), a second battery (409) (e.g., the battery (189) of FIG. 1), a first charging circuit (406), a second charging circuit (407), and a switch (430). At least one of the components of the electronic device (400) may be identical or similar to at least one of the components of the electronic device (101) of FIG. 1, and a redundant description thereof will be omitted below.

[0064] According to one embodiment, the connector (401) may be connected to a cable of the power supply (410). The connector (401) may include a plurality of pins. The connector (401) may include one or more VBUS pins used to supply power from the power supply (410), one or more communication pins used to allow the electronic device (400) and the power supply (410) to communicate with each other, one or more ground pins, and a power pin for supplying power to or receiving power from the power supply (410). The one or more communication pins may include, for example, a CC (configuration channel) pin, a D+ pin, and a D- pin. The connector (401) may receive power from the power supply (410) through one or more VBUS pins.

[0065] According to one embodiment, the power supply (410) may include a legacy travel adapter (TA) that does not support the programmable power supply (PPS) function (e.g., a first type external power supply) and a PPS travel adapter (TA) that supports the programmable power supply (PPS) function (e.g., a second type external power supply).

[0066] According to one embodiment, the power management module (402) can manage power supplied to the electronic device (400). For example, the power management module (402) can be implemented as at least a part of an IF-PMIC (interface power management integrated circuit). The IF-PMIC can be an integrated circuit that further includes additional functions in a general PMIC. The power management module (402) can include a first port (403) connected to a power pin, a second port (404) connected to a connection node (440) of a first battery (408) and a first charging circuit (406), a third port (405) connected to a system power line, and a battery management module Qbat (450). The Qbat (450) can play a role in controlling a charging and discharging process of batteries (e.g., the first battery (408) and the second battery (409)).

[0067] According to one embodiment, the first battery (408) and the second battery (409) may be connected in parallel. The first battery (408) and the second battery (409) may each be implemented as the battery (189) described with reference to FIGS. 1 and 2. For example, the first battery (408) and the second battery (409) may also be implemented as two identical batteries (189). The first battery (408) and the second battery (409) may each serve as a main battery used as a primary power supply source of the electronic device (400) and a sub-battery used as a backup power supply source, but are not limited thereto. According to one embodiment, the first charging circuit (406) and the second charging circuit (407) may include a direct charger integrated circuit (DC IC). The DC IC may be a charger capable of ultra-fast charging of a battery (e.g., a first battery (408), a second battery (409)).

[0068] According to one embodiment, the electronic device (400) may include a first switch (430) for selectively connecting the second charging circuit (407) to the first port (404) or the third port (405). The first switch (430) may be implemented as a load switch. The first switch (430) may connect the second charging circuit (407) to the first port (404) or the third port (405) depending on the type of power supply (410) connected to the electronic device (400) (e.g., a first type external power supply, a second type external power supply). The first switch (430) may be controlled by a processor (not shown) (e.g., a processor (120) of FIG. 1) and / or a power management module (402) of the electronic device (400), but is not necessarily limited thereto. Depending on the embodiment, the first switch (430) may be controlled by a separate controller (not shown) (e.g., a switch controller).

[0069] According to one embodiment, the first charging circuit (406) and the second charging circuit (407) can operate in a charging pump mode (e.g., a 2:1 charging pump), a forward mode, and a reverse mode. The charging pump mode can represent, for example, a mode in which the voltage is multiplied by 1 / n and the current is multiplied by n in the case of an n:1 charging pump, to charge the batteries (e.g., the first battery (408), the second battery (409)). The forward mode can be, for example, a mode in which the supply current received from the power supply device (410) is simply output without converting or regulating it. The reverse mode can be a mode in which power flows from the output (e.g., the second battery (409)) to the input. According to one embodiment, when there is no external power supply connected to the connector (401) of the electronic device (400), the second charging circuit (407) can operate in a 1:1 reverse mode.

[0070] According to one embodiment, when the first charging circuit (406) and the second charging circuit (407) perform current limiting when charging a dead battery (e.g., when a processor (not shown) of the electronic device (400) cannot be driven), the current that serves as the basis for the current limiting may be set to a specific unit (e.g., 50 mA). For example, the current that serves as the basis for the current limiting may be set to 50 mA, 100 mA, 150 mA, or 200 mA.

[0071] According to one embodiment, in the case of a ship mode that prevents discharge of batteries (e.g., a first battery (408), a second battery (409)), when a transistor (e.g., a field effect transistor (FET)) included in a Qbat (450), which is a battery management module inside a power management module (402), and a first charging circuit (406), and a second charging circuit (407) proceed to charging disable, the power paths (e.g., a charging path, a discharging path) of each of the first battery (408) and the second battery (409) may be opened.

[0072] According to one embodiment, in a process mode used in a manufacturing process and / or production and management process of a battery (e.g., a first battery (408), a second battery (409)), a disconnection of each battery (e.g., a first battery (408), a second battery (409)) may be performed. The disconnection of the first battery (408) may be performed, for example, through a DISQBAT operation of the Qbat (450). The disconnection of the second battery (409) may be performed, for example, by turning off the first switch (430).

[0073] An electronic device (400) according to one embodiment may operate in LDO (low dropout) mode by using Qbat (450) in LDO mode and using a function (e.g., IBUS_REG function) of the first charging circuit (406) and / or the second charging circuit (407). LDO may mean a case where the potential difference between the input voltage and the output voltage is very small.

[0074] An electronic device (400) according to one embodiment may use a Qbat (450) charging circuit (e.g., a second charging circuit (407)) to perform overcurrent protection (OCP) during discharging. For example, when a first battery (408) is discharged, the electronic device (400) may perform OCP for the first battery (408) through Qbat (450), and when a second battery (409) is discharged, the electronic device (400) may perform OCP for the second battery (409) using a function (e.g., IBUS_OCP) of the second charging circuit (407).

[0075]

[0076] FIGS. 5A and 5B are diagrams illustrating charging and discharging paths of an electronic device according to one embodiment.

[0077] FIG. 5A may be a drawing for explaining the operation of an electronic device (400) when a first type of external power supply (hereinafter referred to as “legacy TA”) that does not support PPS (programmable power supply) is connected to a connector (401) of the electronic device (400) of FIG. 4.

[0078] Referring to FIG. 5A, according to one embodiment, a power supply (410) (e.g., legacy TA) may be connected to a connector (401) via a cable to supply power to an electronic device (400). A charging path (570a) may illustrate a path along which a first battery (408) is charged, and a charging path (580a) may illustrate a path along which a second battery (409) is charged.

[0079] In one embodiment, the charging path (570a) may represent a path along which the first battery (408) is charged. The first battery (408) may be charged, for example, by receiving power directly from the system power line via Qbat (450).

[0080] According to one embodiment, the charging path (580a) may represent a path along which the second battery is charged. The second battery may be charged, for example, by receiving power from the system power line through the second charging circuit (407). The first switch (430) may connect the third port (405) and the second charging circuit (407) to enable the second battery (409) to be charged by receiving power from the system power line. The first switch (430) may be controlled by a processor (not shown) (e.g., the processor (120) of FIG. 1 ) and / or a power management module (402) of the electronic device (400), but is not necessarily limited thereto. According to an embodiment, the first switch (430) may be controlled by a separate controller (not shown) (e.g., a switch controller). The second charging circuit (407) can charge the second battery (409), for example, by operating in a 1:1 forward mode.

[0081] When a legacy TA (e.g., power supply (410)) supplies power to an electronic device (400), current limiting may be required for safe charging and battery protection to prevent current exceeding the permitted current from being supplied to the batteries (e.g., first battery (408) and second battery (409)). Current limiting for each battery (e.g., first battery (408) and second battery (409)) may be performed through components included in the charging path of each battery (e.g., charging path (570a) and charging path (580a)).

[0082] According to one embodiment, current limiting for the first battery (408) can be performed via the Qbat (450), which is a battery management module included in the power management module (402). For example, a field effect transistor (FET) included in the Qbat (450) can be configured to perform a function that the Qbat (450) can perform (e.g., V sys In addition to performing functions such as short detection, IBAT loop, ship mode, etc., it can perform current limiting for the first battery (408).

[0083] According to one embodiment, current limiting for the second battery (409) may be performed by a transistor (e.g., an input field effect transistor (INFET)) included in the second charging circuit (407). The INFET may refer to a field effect transistor located at the input terminal of the second charging circuit (407). The INFET may control the drain-source resistance (R) through the control of the gate voltage. ds ) can be used to perform current regulation.

[0084] According to one embodiment, when current limiting of the second battery (409) is performed through the INFET of the second charging circuit (407), the current limiting of the second battery (409) may be performed by activating or deactivating the function of the second charging circuit (407). For example, the under current protection (UCP) function for preventing a current decrease of the second charging circuit (407) may be deactivated, or the current limiting of the second battery (409) may be performed by selectively using the function of the second charging circuit (407) based on the charging section (e.g., constant current (CC) section, constant voltage (CV) section).

[0085] According to one embodiment, the power management module (402) can perform a buck on operation and a charge on operation when a legacy TA (e.g., a power supply (410)) is connected to the connector (401). The buck on operation can be an operation for supplying power to the system through the third port (405). The charge on operation can be an operation for supplying power to a battery (e.g., a first battery (408) or a second battery (409)) through the second port (404).

[0086] According to one embodiment, even when the electronic device (400) is connected to a power supply (410) (e.g., a legacy TA), for example, when the electronic device (400) is under heavy load and consumes power, the electronic device (400) may be supplied with power from a battery (e.g., a first battery (408), a second battery (409)).

[0087] In one embodiment, the discharge path (571a) may represent a path along which the first battery (408) is discharged. The first battery (408) may supply power to the system and be discharged, for example, via Qbat (450). The discharge path (581a) may represent a path along which the second battery (409) is discharged. The second battery (409) may supply power directly to the system and be discharged, for example, via the second charging circuit (407).

[0088]

[0089] FIG. 5b may be a drawing for explaining the operation of an electronic device (400) when a second type of external power supply supporting PPS (programmable power supply) (hereinafter referred to as “PPS TA”) is connected to a connector (401) of the electronic device (400) of FIG. 4.

[0090] Referring to FIG. 5b, according to one embodiment, a power supply device (410) (e.g., PPS TA) may be connected to a connector (401) via a cable to supply power to an electronic device (400). A charging path (570b) may illustrate a path along which a first battery (408) is charged, and a charging path (580b) may illustrate a path along which a second battery (409) is charged.

[0091] According to one embodiment, when the PPS TA is connected to the connector (401) and the electronic device (400) is supplied with power, the first charging circuit (406) and the second charging circuit (407) can operate as an n:1 charging pump that multiplies the voltage by 1 / n and multiplies the current by n, thereby ultra-fast charging the batteries (e.g., the first battery (408) and the second battery (409)). The first charging circuit (406) can be connected to the first battery (408) to charge the first battery (408), and the second charging circuit (407) can be connected to the second battery (409) to charge the second battery (409).

[0092] According to one embodiment, the charging path (570b) may represent a path along which the first battery (408) is charged. The first battery (408) may be charged by receiving power from a power supply (410) (e.g., PPS TA) through the first charging circuit (406) from the connector (401).

[0093] According to one embodiment, the charging path (580b) may represent a path along which the second battery (409) is charged. The second battery (409) may be charged by receiving power from the power supply (410) through the second charging circuit (407) from the connector (401). The first switch (430) may connect the first port (403) and the second charging circuit (407) when the PPS TA is connected to the connector (401). The first charging circuit (406) and the second charging circuit (407) may operate as an n:1 charging pump (e.g., n is a natural number greater than or equal to 2) to charge the first battery (408) and the second battery (409), respectively.

[0094] According to one embodiment, the power management module (402) can perform a buck on operation to supply power to the system via the third port (405) when a PPS TA (e.g., a power supply (410)) is connected to the connector (401).

[0095] In one embodiment, the discharge path (571b) may represent a path along which the first battery (408) is discharged. The first battery (408) may supply power to the system and be discharged, for example, via Qbat (450). The discharge path (571b) may be substantially identical to the discharge path (571a) described with reference to FIG. 5A.

[0096] According to one embodiment, the discharge path (581b) represents a path along which the second battery (409) is discharged, and the second battery (409) can supply power to the system by being discharged, for example, through the second charging circuit (407), through the first switch (430), through the power management module (402), and into the system power line. The discharge path (581b) may include a path through which power is supplied to the system through the first port (403), through the power management module (402), and then through the third port (405).

[0097]

[0098] FIG. 6 is a block diagram illustrating an electronic device according to one embodiment.

[0099] Referring to FIG. 6, according to one embodiment, FIG. 6 may be a drawing for explaining an embodiment in which the electronic device (400) described with reference to FIG. 4 further includes a second switch (440).

[0100] According to one embodiment, the electronic device (400) may further include a second switch (440) for selectively connecting the second battery (409) to the third port (405). The second switch (440) may be implemented as a switch element, for example, for blocking or allowing the flow of power through a switching function. The second switch (440) may be turned on or off based on whether the power supply (410) connected to the connector (401) supports a programmable power supply (PPS), thereby selectively connecting the second battery (409) to the system power line. The operation of the second switch (440) according to the type of the power supply (410) will be described with reference to FIGS. 7A and 7B.

[0101]

[0102] FIGS. 7A and 7B are diagrams illustrating charging and discharging paths of an electronic device according to one embodiment.

[0103] FIG. 7a may be a drawing for explaining the operation of an electronic device (400) when a first type of external power supply (hereinafter referred to as “legacy TA”) that does not support PPS (programmable power supply) is connected to a connector (401) of the electronic device (400) of FIG. 6.

[0104] Referring to FIG. 7A, according to one embodiment, a power supply (410) (e.g., legacy TA) may be connected to a connector (401) via a cable to supply power to an electronic device (400). A charging path (770a) may illustrate a path along which a first battery (408) is charged, and a charging path (780a) may illustrate a path along which a second battery (409) is charged.

[0105] In one embodiment, the charging path (770a) may represent a path along which the first battery (408) is charged. The first battery (408) may be charged, for example, by receiving power directly from the system power line via Qbat (450). The charging path (770a) may be substantially identical to the charging path (570a) of the first battery described with reference to FIG. 5A.

[0106] In one embodiment, the charging path (780a) may represent a path along which the second battery is charged. The second battery may be charged, for example, by receiving power from the system power line through the second charging circuit (407). The first switch (43) may connect the third port (405) and the second charging circuit (407) to enable the second battery (409) to be charged by receiving power from the system power line. The charging path (780a) may be substantially the same as the charging path (580a) of the second battery described with reference to FIG. 5A. The second switch (440) may be turned off when the legacy TA is connected to the connector (401), thereby blocking current between the second battery (409) and the system power line. The second switch (440) may be controlled by a processor (not shown) (e.g., processor (120) of FIG. 1) and / or a power management module (402) of the electronic device (400), but is not necessarily limited thereto. In some embodiments, the second switch (440) may be controlled by a separate controller (not shown) (e.g., a switch controller).

[0107] When a legacy TA (e.g., power supply (410)) supplies power to an electronic device (400), current limiting may be required for safe charging and battery protection to prevent current exceeding the permitted current from being supplied to the batteries (e.g., first battery (408) and second battery (409)). The current limiting for each battery (e.g., first battery (408) and second battery (409)) is the same as the current limiting operation for the first battery (408) and second battery (409) described with reference to FIG. 5A, and thus a detailed description thereof will be omitted.

[0108] According to one embodiment, even when the electronic device (400) is connected to a power supply (410) (e.g., a legacy TA), for example, when the electronic device (400) is under heavy load and consumes power, the electronic device (400) may be supplied with power from a battery (e.g., a first battery (408), a second battery (409)).

[0109] In one embodiment, the discharge path (771a) may represent a path along which the first battery (408) is discharged. The first battery (408) may supply power to the system and be discharged, for example, via Qbat (450). The discharge path (771a) may be substantially identical to the discharge path (571a) of the first battery (408) described with reference to FIG. 5A.

[0110] According to one embodiment, the discharge path (781a) represents a path along which the second battery (409) is discharged, and the second battery (409) can supply power directly to the system and be discharged, for example, via the second charging circuit (407). The discharge path (781a) may be substantially the same as the discharge path (581a) of the second battery (409) described with reference to FIG. 5A.

[0111]

[0112] FIG. 7b may be a drawing for explaining the operation of an electronic device (400) when a second type of external power supply supporting PPS (programmable power supply) (hereinafter referred to as “PPS TA”) is connected to a connector (401) of the electronic device (400) of FIG. 6.

[0113] Referring to FIG. 7b, according to one embodiment, a power supply device (410) (e.g., PPS TA) may be connected to a connector (401) via a cable to supply power to an electronic device (400). A charging path (770b) may illustrate a path along which a first battery (408) is charged, and a charging path (780b) may illustrate a path along which a second battery (409) is charged.

[0114] According to one embodiment, when the PPS TA is connected to the connector (401) and the electronic device (400) is supplied with power, the first charging circuit (406) and the second charging circuit (407) can operate as an n:1 charging pump that multiplies the voltage by 1 / n and multiplies the current by n, thereby ultra-fast charging the batteries (e.g., the first battery (408) and the second battery (409)). The first charging circuit (406) can be connected to the first battery (408) to charge the first battery (408), and the second charging circuit (407) can be connected to the second battery (409) to charge the second battery (409).

[0115] According to one embodiment, the charging path (770b) may represent a path along which the first battery (408) is charged. The first battery (408) may be charged by receiving power from a power supply (410) (e.g., PPS TA) through the first charging circuit (406) from the connector (401). The charging path (770b) may be substantially the same as the charging path (570b) of the first battery (408) described with reference to FIG. 5b.

[0116] According to one embodiment, the charging path (580b) may represent a path along which the second battery (409) is charged. The second battery (409) may be charged by receiving power from the power supply (410) through the second charging circuit (407) from the connector (401). The first switch (430) may connect the first port (403) and the second charging circuit (407) when the PPS TA is connected to the connector (401). The first charging circuit (406) and the second charging circuit (407) may operate as an n:1 charging pump (e.g., n is a natural number greater than or equal to 2) to charge the first battery (408) and the second battery (409), respectively. The charging path (780b) may be substantially the same as the charging path (580b) of the first battery (408) described with reference to FIG. 5b.

[0117] According to one embodiment, the power management module (402) can perform a buck on operation to supply power to the system via the third port (405) when a PPS TA (e.g., a power supply (410)) is connected to the connector (401).

[0118] In one embodiment, the discharge path (771b) may represent a path along which the first battery (408) is discharged. The first battery (408) may supply power to the system and be discharged, for example, via Qbat (450). The discharge path (571b) may be substantially identical to the discharge path (571a) described with reference to FIG. 5A.

[0119] In one embodiment, the discharge path (581b) may represent a path along which the second battery (409) is discharged. The second switch (440) may be turned on when the PPS TA is connected to the connector (401), thereby allowing current to flow between the second battery (409) and the system power line. The second battery (409) may supply power to the system through the second switch (440), and the discharge path (781b) may be shorter than the discharge path (581b) of the second battery (409) described with reference to FIG. 5b.

[0120]

[0121] FIG. 8 is a block diagram illustrating an electronic device according to one embodiment.

[0122] Referring to FIG. 8, according to one embodiment, an electronic device (800) (e.g., the electronic device (101) of FIG. 1, the electronic device (300) of FIG. 3) may be a dual-role-power (DRP) device. A DRP device may represent a device that can operate as a source that supplies power or as a sink that receives power from a source. In the example illustrated in FIG. 8, a power supply device (410) (e.g., the power supply device (310) of FIG. 3) may operate as a source, and the electronic device (800) may operate as a sink.

[0123] According to one embodiment, the electronic device (800) may include a connector (401) (e.g., the connection terminal (178) of FIG. 1, the connection terminal (301) of FIG. 3), a power management module (802) (e.g., the power management module (188) of FIG. 1), a first battery (408) (e.g., the battery (189) of FIG. 1), a second battery (409) (e.g., the battery (189) of FIG. 1), a first charging circuit (406), a second charging circuit (407), a first switch (830), and a second switch (840). At least one of the components of the electronic device (800) may be identical or similar to at least one of the components of the electronic device (101) of FIG. 1, and a redundant description thereof will be omitted below.

[0124] According to one embodiment, the connector (401) may be connected to a cable of the power supply (410). The connector (401) may include a plurality of pins. The connector (401) may include one or more VBUS pins used to supply power from the power supply (410), one or more communication pins used to communicate between the electronic device (800) and the power supply (410), one or more ground pins, and a power pin for supplying power to or receiving power from the power supply (410). The one or more communication pins may include, for example, a CC (configuration channel) pin, a D+ pin, and a D- pin. The connector (401) may receive power from the power supply (410) through one or more VBUS pins.

[0125] According to one embodiment, the power supply (410) may include a legacy travel adapter (TA) that does not support the programmable power supply (PPS) function (e.g., a first type external power supply) and a PPS travel adapter (TA) that supports the programmable power supply (PPS) function (e.g., a second type external power supply).

[0126] According to one embodiment, the power management module (802) can manage power supplied to the electronic device (400). For example, the power management module (402) can be implemented as at least a part of an IF-PMIC (interface power management integrated circuit). The IF-PMIC can be an integrated circuit that further includes additional functions in a general PMIC. The power management module (802) can include a first port (803) connected to a power pin, a second port (804) connected to a connection node (850) of the first charging circuit (406) and the second charging circuit (407), a third port (805) connected to a system power line, and a battery management module Qbat (450). The Qbat (450) can play a role in controlling a charging and discharging process of a battery (e.g., a first battery (408) and a second battery (409)).

[0127] According to one embodiment, the first battery (408) and the second battery (409) may be connected in parallel. The first battery (408) and the second battery (409) may each be implemented as the battery (189) described with reference to FIGS. 1 and 2 . For example, the first battery (408) and the second battery (409) may also be implemented as two identical batteries (189).

[0128] According to one embodiment, the first battery (408) and the second battery (409) may each serve as a main battery used as a primary power supply source of the electronic device (400) and a sub battery used as a backup power supply source, but are not limited thereto.

[0129] According to one embodiment, the first charging circuit (406) and the second charging circuit (407) may include a direct charger integrated circuit (DC IC). The DC IC may be a charger capable of ultra-fast charging a battery (e.g., the first battery (408) and the second battery (409)).

[0130] According to one embodiment, the electronic device (800) may include a first switch (830) for selectively connecting the first charging circuit (406) to the first port (803) or the second port (804). The first switch (830) may be implemented as a load switch. The first switch (830) may selectively connect the second charging circuit (407) to the first port (803) or the second port (804) depending on the type of power supply (410) connected to the electronic device (800) (e.g., a first type external power supply, a second type external power supply).

[0131] According to one embodiment, the electronic device (800) may include a second switch (840) for selectively connecting the second charging circuit (407) to the first port (803) or the second port (804). The second switch (840) may be implemented as a load switch. The second switch (840) may selectively connect the second charging circuit (407) to the first port (803) or the second port (804) depending on the type of power supply (410) connected to the electronic device (800) (e.g., a first type external power supply, a second type external power supply). The first switch (830) and the second switch (840) may be controlled by a processor (not shown) (e.g., a processor (120) of FIG. 1) and / or a power management module (402) of the electronic device (800), but are not necessarily limited thereto. Depending on the embodiment, the first switch (830) and the second switch (840) may be controlled by separate controllers (not shown) (e.g., switch controllers).

[0132]

[0133] FIGS. 9A and 9B are diagrams illustrating charging and discharging paths of an electronic device according to one embodiment.

[0134] FIG. 9a may be a drawing for explaining the operation of an electronic device (800) when a first type of external power supply (hereinafter referred to as “legacy TA”) that does not support PPS (programmable power supply) is connected to a connector (401) of the electronic device (800) of FIG. 8.

[0135] Referring to FIG. 9A, according to one embodiment, a power supply (410) (e.g., legacy TA) may be connected to a connector (401) via a cable to supply power to an electronic device (800). A charging path (970a) may illustrate a path along which a first battery (408) is charged, and a charging path (980a) may illustrate a path along which a second battery (409) is charged.

[0136] In one embodiment, the charging path (970a) may represent a path along which the first battery (408) is charged. The first switch (830) may connect the first charging circuit (406) to the second port (804) when the legacy TA is connected to the connector (401). The charging path (970a) may be, for example, a path that supplies power to the first battery (408) from the connector (401) through the first port (803) through the Qbat (450), and then through the second port (804) through the first switch (830) and the first charging circuit (406).

[0137] According to one embodiment, the charging path (980a) may represent a path along which the second battery is charged. The second switch (840) may connect the second charging circuit (407) to the second port (804) when the legacy TA is connected to the connector (401). The charging path (980a) may be a path that shares a path from the charging path (570a) to the second port (804) and then branches off from the second port (804) to supply power to the second battery (409). The charging path (980a) may be a path that branches off from the charging path (970a) after the second port (804) and supplies power to the second battery (409) via the second switch (840) and the second charging circuit (407).

[0138] When a legacy TA (e.g., power supply (410)) supplies power to an electronic device (800), current limiting may be required for safe charging and battery protection to prevent current exceeding the permitted current from being supplied to the batteries (e.g., first battery (408) and second battery (409)). Current limiting for each battery (e.g., first battery (408) and second battery (409)) may be performed through components included in the charging path of each battery (e.g., charging path (970a) and charging path (980a)).

[0139] According to one embodiment, current limiting for the first battery (408) may be performed through a first transistor (e.g., an input field effect transistor (INFET)) included in the first charging circuit (406). The INFET may refer to a field effect transistor located at an input terminal of the charging circuit (e.g., the first charging circuit (406) and the second charging circuit (407)). The INFET may control the drain-source resistance (R) through the control of the gate voltage. ds ) can be used to perform current regulation.

[0140] According to one embodiment, when current limiting for the first battery (408) is performed by the first transistor, the Qbat (450) included in the power management module (802) included in the electronic device (800) may not perform the current limiting role. For example, the Qbat (450) included in the power management module (802) may perform a function (e.g., V sys Only short detection, IBAT loop, ship mode, etc. are performed, and the first transistor included in the first charging circuit (406) can perform current limiting for the first battery (408).

[0141] According to one embodiment, current limiting for the second battery (409) may be performed by a second transistor (e.g., an input field effect transistor (INFET)) included in the second charging circuit (407). The second transistor may mean, for example, a field effect transistor located at the input terminal of the second charging circuit (407).

[0142] According to one embodiment, when current limiting of a battery (e.g., a first battery (408) and a second battery (409)) is performed through an INFET (e.g., a first transistor, a second transistor), the function of a charging circuit (e.g., a first charging circuit (406) and a second charging circuit (407)) may be activated or deactivated to perform current limiting of the battery (e.g., a first battery (408) and a second battery (409)). For example, the charging circuits (e.g., the first charging circuit (406) and the second charging circuit (407)) may have an under current protection (UCP) function disabled to prevent current reduction, or the current limiting of the batteries (e.g., the first battery (408) and the second battery (409)) may be performed by selectively using the function of the charging circuits (e.g., the first charging circuit (406) and the second charging circuit (407)) based on the charging section (e.g., the constant current (CC) section, the constant voltage (CV) section).

[0143] According to one embodiment, the power management module (802) can perform a buck on operation and a charge on operation when a legacy TA (e.g., a power supply (410)) is connected to the connector (401). The buck on operation can be an operation for supplying power to the system through the third port (805). The charge on operation can be an operation for supplying power to a battery (e.g., a first battery (408) or a second battery (409)) through the second port (804).

[0144] According to one embodiment, even when the electronic device (800) is connected to a power supply (410) (e.g., a legacy TA), for example, when the electronic device (800) is under heavy load and consumes power, the electronic device (800) may be powered from a battery (e.g., a first battery (408), a second battery (409)).

[0145] According to one embodiment, the discharge path (971a) may represent a path along which the first battery (408) is discharged. The first battery (408) may supply power to the system and be discharged through, for example, the first charging circuit (406) and Qbat (450) and the third port (805). The discharge path (981a) represents a path along which the second battery (409) is discharged. The second battery (409) may supply power to the system and be discharged through, for example, the second charging circuit (407) and Qbat (450) and the third port (805). The discharge path (971a) and the discharge path (981a) may share a path from the second port (804).

[0146]

[0147] FIG. 9b may be a drawing for explaining the operation of an electronic device (800) when a second type of external power supply supporting PPS (programmable power supply) (hereinafter referred to as “PPS TA”) is connected to a connector (401) of the electronic device (800) of FIG. 8.

[0148] Referring to FIG. 9b, according to one embodiment, a power supply device (410) (e.g., PPS TA) may be connected to a connector (401) via a cable to supply power to an electronic device (800). A charging path (970b) may illustrate a path along which a first battery (408) is charged, and a charging path (980b) may illustrate a path along which a second battery (409) is charged.

[0149] According to one embodiment, when the PPS TA is connected to the connector (401) and the electronic device (800) is supplied with power, the first charging circuit (406) and the second charging circuit (407) can operate as an n:1 charging pump that multiplies the voltage by 1 / n and multiplies the current by n, thereby ultra-fast charging the batteries (e.g., the first battery (408) and the second battery (409)). The first charging circuit (406) can be connected to the first battery (408) to charge the first battery (408), and the second charging circuit (407) can be connected to the second battery (409) to charge the second battery (409).

[0150] According to one embodiment, the charging path (970b) may represent a path along which the first battery (408) is charged. The first switch (830) may connect the first charging circuit (406) to the first port (803) when the PPS TA is connected to the connector (401). The first battery (408) may be charged by receiving power from a power supply (410) (e.g., PPS TA) through the first charging circuit (406) from the connector (401).

[0151] According to one embodiment, the charging path (980b) may represent a path along which the second battery (409) is charged. The second battery (409) may be charged by receiving power from the power supply (410) through the second charging circuit (407) from the connector (401). The second switch (840) may connect the first port (803) and the second charging circuit (407) when the PPS TA is connected to the connector (401). The first charging circuit (406) and the second charging circuit (407) may operate as an n:1 charging pump (e.g., n is a natural number greater than or equal to 2) to charge the first battery (408) and the second battery (409), respectively.

[0152] According to one embodiment, the power management module (802) can perform a buck on operation to supply power to the system via the third port (805) when a PPS TA (e.g., power supply (410)) is connected to the connector (401).

[0153] In one embodiment, the discharge path (971b) may represent a path along which the first battery (408) is discharged. The first battery (408) may, for example, pass through the first charging circuit (406), the first port (803), the power management module (802), and supply power to the system and be discharged through the third port (805).

[0154] According to one embodiment, the discharge path (981b) represents a path along which the second battery (409) is discharged, and the second battery (409) may, for example, pass through the second charging circuit (407), pass through the first port (803), pass through the power management module (802), and supply power to the system through the third port (805) and be discharged.

[0155]

[0156] FIG. 10 is a block diagram illustrating an electronic device according to one embodiment.

[0157] Referring to FIG. 10, according to one embodiment, an electronic device (1000) (e.g., the electronic device (101) of FIG. 1, the electronic device (300) of FIG. 3) may be a dual-role-power (DRP) device. A DRP device may represent a device that can operate as a source that supplies power or as a sink that receives power from a source. In the example illustrated in FIG. 10, a power supply device (410) (e.g., the power supply device (310) of FIG. 3) may operate as a source, and the electronic device (1000) may operate as a sink.

[0158] According to one embodiment, the electronic device (1000) may include a connector (401) (e.g., the connection terminal (178) of FIG. 1, the connection terminal (301) of FIG. 3), a power management module (1002) (e.g., the power management module (188) of FIG. 1), a first battery (408) (e.g., the battery (189) of FIG. 1), a second battery (409) (e.g., the battery (189) of FIG. 1), a charging circuit (1005), a limiter (1006), and a controller (1030). At least one of the components of the electronic device (1000) may be identical or similar to at least one of the components of the electronic device (101) of FIG. 1, and a redundant description thereof will be omitted below.

[0159] According to one embodiment, the connector (401) may be connected to a cable of the power supply (410). The connector (401) may include a plurality of pins. The connector (401) may include one or more VBUS pins used to supply power from the power supply (410), one or more communication pins used to communicate between the electronic device (800) and the power supply (410), one or more ground pins, and a power pin for supplying power to or receiving power from the power supply (410). The one or more communication pins may include, for example, a CC (configuration channel) pin, a D+ pin, and a D- pin. The connector (401) may receive power from the power supply (410) through one or more VBUS pins.

[0160] According to one embodiment, the power supply (410) may include a legacy travel adapter (TA) that does not support the programmable power supply (PPS) function (e.g., a first type external power supply) and a PPS travel adapter (TA) that supports the programmable power supply (PPS) function (e.g., a second type external power supply).

[0161] According to one embodiment, the power management module (1002) can manage power supplied to the electronic device (1000). For example, the power management module (1002) can be implemented as at least a part of an IF-PMIC (interface power management integrated circuit). The IF-PMIC can be an integrated circuit that further includes additional functions in a general PMIC. The power management module (1002) can include a first port (1003) connected to a power pin, a second port (1004) connected to a connection node (1040) of the first battery (408) and the limiter (1006), a third port (1005) connected to a system power line, and a battery management module Qbat (450). The Qbat (450) can play a role in controlling a charging and discharging process of batteries (e.g., the first battery (408) and the second battery (409)).

[0162] According to one embodiment, the first battery (408) and the second battery (409) may be connected in parallel. The first battery (408) and the second battery (409) may each be implemented as the battery (189) described with reference to FIGS. 1 and 2 . For example, the first battery (408) and the second battery (409) may also be implemented as two identical batteries (189).

[0163] According to one embodiment, the first battery (408) and the second battery (409) may each serve as a main battery used as a primary power supply source of the electronic device (400) and a sub battery used as a backup power supply source, but are not limited thereto.

[0164] In one embodiment, a limiter (1006) may be connected to a second battery (409) to perform current limiting for the second battery (409). For example, the limiter (1006) may perform current limiting for a battery (e.g., the second battery (409)) when a power supply (410) (e.g., a legacy TA), which will be described later with reference to FIG. 11A, is connected to the connector (401) to charge the electronic device (1000). A controller (1013) included in the charging circuit (1005) may control the limiter (1006). The controller (1013) may control a limiter (e.g., limiter (1006)) to prevent overvoltage, undervoltage, overcurrent, short circuit, etc. of the battery (e.g., second battery (409)) based on the state (e.g., temperature) of the battery (e.g., second battery (409)), for example, to protect the battery (e.g., second battery (409)).

[0165] According to one embodiment, the charging circuit (1005) may be connected to the first battery (408). The charging circuit (1005) may charge the first battery (408) and the second battery (409). For example, the charging circuit (1005) may include a direct charger integrated circuit (DC IC). The DC IC may be a charger capable of ultra-fast charging batteries (e.g., the first battery (408) and the second battery (409)).

[0166] According to one embodiment, the first battery (408) and the second battery (409) share a charging circuit (1005), and thus can share functional blocks (e.g., an analog-to-digital converter (ADC) block, an inter-integrated circuit (I2C) block, a digital block, etc.). Functions that the blocks that the first battery (408) and the second battery (409) can share may include an input / output current and / or voltage detection function, a fuel gauge function, etc. When the electronic device (1000) according to one embodiment uses a foldable battery, n (e.g., n is 2) external MOSFETs (e.g., limiters (1006)) may be required, and accordingly, n controllers (e.g., controllers (1005)) may also be included.

[0167]

[0168] FIGS. 11A and 11B are diagrams illustrating charging and discharging paths of an electronic device according to one embodiment.

[0169] FIG. 11a may be a drawing for explaining the operation of an electronic device (1000) when a first type of external power supply (hereinafter referred to as “legacy TA”) that does not support PPS (programmable power supply) is connected to a connector (401) of the electronic device (1000) of FIG. 10.

[0170] Referring to FIG. 11a, according to one embodiment, a power supply (410) (e.g., legacy TA) may be connected to a connector (401) via a cable to supply power to an electronic device (1000). A charging path (1170a) may illustrate a path along which a first battery (408) is charged, and a charging path (1180a) may illustrate a path along which a second battery (409) is charged.

[0171] According to one embodiment, the charging path (1170a) may represent a path along which the first battery (408) is charged. The charging path (1170a) may be, for example, a path through which power is supplied from the connector (401) through the first port (1003) to the Qbat (450) within the power management module (1002), and then through the second port (1004) to the first battery (408).

[0172] According to one embodiment, the charging path (1180a) may represent a path along which the second battery (409) is charged. The charging path (1180a) may be, for example, a path that supplies power to the second battery (409) through the Qbat (450) inside the power management module (1002) from the connector (401) through the first port (1003), through the second port (1004), and through the limiter (1006). The charging path (1180a) may be a path that shares a path with the charging path (1170a) up to the second port (1004), and then splits after the second port (1004), passes through the limiter (1006), and supplies power to the second battery (409).

[0173] When a legacy TA (e.g., power supply (410)) supplies power to an electronic device (1000), current limiting may be required for safe charging and battery protection to prevent current exceeding the permitted current from being supplied to the batteries (e.g., first battery (408) and second battery (409)). Current limiting for each battery (e.g., first battery (408) and second battery (409)) may be performed through components included in the charging path of each battery (e.g., charging path (1170a) and charging path (1180a)).

[0174] According to one embodiment, current limiting for the first battery (408) may be performed via the Qbat (450) included in the power management module (1002). For example, a field effect transistor (FET) included in the Qbat (450) may be configured to perform a function that the Qbat (450) can perform (e.g., V sys In addition to performing current limiting functions (short detection, IBAT loop, ship mode, etc.), current limiting for the first battery (408) can be performed.

[0175] In one embodiment, current limiting for the second battery (409) may be performed by a limiter (1006). The limiter (1006) may be connected to a controller (1013) included in the charging circuit (1005) and controlled by the controller (1013).

[0176] According to one embodiment, even when the electronic device (1000) is connected to a power supply (410) (e.g., a legacy TA), for example, when the electronic device (1000) is under heavy load and consumes power, the electronic device (1000) may be supplied with power from a battery (e.g., a first battery (408), a second battery (409)).

[0177] In one embodiment, the discharge path (1171a) may represent a path along which the first battery (408) is discharged. The first battery (408) may supply power to the system and be discharged, for example, through the second port (1004), Qbat (450), and then through the third port (1005). The discharge path (1181a) represents a path along which the second battery (409) is discharged. The second battery (409) may supply power to the system and be discharged, for example, through the limiter (1006), the second charging circuit (407), and Qbat (450) through the third port (1005). The discharge path (1171a) and the discharge path (1181a) may share a path from the second port (1004).

[0178]

[0179] FIG. 11b may be a drawing for explaining the operation of an electronic device (1000) when a second type of external power supply supporting PPS (programmable power supply) (hereinafter referred to as “PPS TA”) is connected to a connector (401) of the electronic device (1000) of FIG. 10.

[0180] Referring to FIG. 11b, according to one embodiment, a power supply device (410) (e.g., PPS TA) may be connected to a connector (401) via a cable to supply power to an electronic device (1000). A charging path (1170b) may illustrate a path along which a first battery (408) is charged, and a charging path (1180b) may illustrate a path along which a second battery (409) is charged.

[0181] According to one embodiment, when the PPS TA is connected to the connector (401) and the electronic device (1000) is powered, both the first battery (408) and the second battery (409) can be charged through the charging circuit (1005). The charging circuit (1005) can, for example, charge the first battery (408) and the second battery (409) in parallel. The charging path (1180b), which is the path through which the second battery (409) is charged, can be a path that is divided after the charging circuit (1005) from the charging path (1170b), which is the path through which the first battery (408) is charged. For example, the charging path (1170b) may be a path that supplies power from the connector (401) through the charging circuit (1005) to the first battery (408), and the charging path (1180b) may be a path that supplies power from the connector (401) through the charging circuit (1005), and then branches off from the charging path (1170b) to additionally supply power to the second battery (409) through a limiter (1006). By supplying power to the first battery (408) without passing through the limiter (e.g., limiter (1006)) element, the charging path (1170b) may be shortened.

[0182] According to one embodiment, the discharge path (1171b) may represent a path along which the first battery (408) is discharged. The first battery (408) may supply power to the system and be discharged, for example, through the second port (1004), Qbat (450), and then through the third port (1005). The discharge path (1181b) represents a path along which the second battery (409) is discharged. The second battery (409) may supply power to the system and be discharged, for example, through the limiter (1006), the second charging circuit (407), and Qbat (450) and then through the third port (1005). The discharge path (1171b) and the discharge path (1181b) may share a path from the second port (1004). The discharge path (1171b) and the discharge path (1181b) may be substantially identical to the discharge path (1171a) and the discharge path (1181a) described with reference to FIG. 11a, respectively.

[0183]

[0184] According to one embodiment, an electronic device (e.g., an electronic device (101) of FIG. 1, an electronic device (310) of FIG. 3, an electronic device (400) of FIG. 4) includes a connector (e.g., a connection terminal (178) of FIG. 1, a connector (301) of FIG. 3, a connector (401) of FIG. 4)) including a power pin for supplying or receiving power in relation to an external power supply (e.g., a power supply device (310) of FIG. 3, a power supply device (410) of FIG. 4), a first charging circuit (e.g., a first charging circuit (406) of FIG. 4) connected to a first battery (e.g., a battery (189) of FIG. 1, a first battery (408) of FIG. 4), a second charging circuit (e.g., a second charging circuit (407) of FIG. 4) connected to a second battery (e.g., a battery (189) of FIG. 1, a second battery (409) of FIG. 4), and a first port (e.g., A power management module (e.g., power management module (188) of FIG. 1, power management module (402) of FIG. 4) including a first port (403) of FIG. 4), a second port (e.g., second port (404) of FIG. 4) connected to a connection node (e.g., connection node (440) of FIG. 4) of the first battery (189, 408) and the first charging circuit (406), and a third port (e.g., third port (405) of FIG. 4) connected to a system power line may be included, and a first switch (e.g., first switch (430) of FIG. 4) for selectively connecting the second charging circuit (e.g., second charging circuit (407) of FIG. 4) to the first port (404) or the third port (405).

[0185] According to one embodiment, the second battery (189, 409) may be in a parallel relationship with the first battery (189; 408).

[0186] According to one embodiment, the external power supply (310, 410) may include a first type of external power supply that does not support PPS (programmable power supply) and a second type of external power supply that supports PPS.

[0187] According to one embodiment, the first switch (430) may connect the second charging circuit (407) to the third port (405) when the first type of external power supply is connected to the connector (178, 301, 401), and may connect the second charging circuit (407) to the first port (403) when the second type of external power supply is connected to the connector (178, 301, 401).

[0188] According to one embodiment, when the first type of external power supply is connected to the connector (178, 301, 401) and the electronic device (101, 300, 400) is charged, current limiting of the first battery (189, 408) may be performed through a battery management module (e.g., Qbat (450) of FIG. 4) included in the power management module (402), and current limiting of the second battery (189, 409) may be performed through a transistor included in the second charging circuit (407).

[0189] According to one embodiment, the transistor may be a transistor connected to an input terminal of the second charging circuit (407).

[0190] According to one embodiment, when the first type of external power supply is connected to the connector (178, 301, 401) and the electronic device (101, 300, 400) consumes power, the first battery (189, 408) can be discharged to the system power line through the battery management module (e.g., Qbat (450)), and the second battery (189, 409) can be discharged to the system power line through the first switch (430).

[0191] According to one embodiment, when the second type of external power supply is connected to the connector (178, 301, 401) and the electronic device (101, 300, 400) is charged, the first battery (189, 408) can be charged from the connector (178, 301, 401) through the first charging circuit (406), and the second battery (189, 409) can be charged from the connector (178, 301, 401) through the second charging circuit (407).

[0192] According to one embodiment, when the second type of external power supply is connected to the connector (178, 301, 401) and the electronic device (101, 300, 400) consumes power, the first battery (189, 408) can be discharged to the system power line through the battery management module (e.g., Qbat (450)), and the second battery (189, 409) can be discharged to the system power line through the first port (403) through the first switch (430).

[0193] An electronic device (101, 300, 400) according to one embodiment may further include a second switch (e.g., second switch (440) of FIG. 6) for selectively connecting the second battery (189, 409) to the system power line.

[0194] In one embodiment, when the second type of external power supply is connected to the connector (178, 301, 401) and the electronic device (101, 300, 400) consumes power, the second battery (189, 409) can be discharged to the system power line through the second switch (440).

[0195] In an electronic device according to one embodiment (e.g., electronic device (101) of FIG. 1, electronic device (300) of FIG. 3, electronic device (800) of FIG. 8), a connector (e.g., connection terminal (178) of FIG. 1, connector (301) of FIG. 3, connector (401) of FIG. 8) including a power pin for supplying or receiving power in relation to an external power supply device (e.g., power supply device (310) of FIG. 3, power supply device (410) of FIG. 8), a first charging circuit (e.g., first charging circuit (406) of FIG. 8) connected to a first battery (e.g., battery (189) of FIG. 1, second battery (408) of FIG. 8), a second charging circuit (e.g., second charging circuit (407) of FIG. 8) connected to a second battery (189, 409), a first port (e.g., first port (803) of FIG. 8) connected to the power pin), and the first charging A power management module (e.g., power management module (188) of FIG. 1, power management module (802) of FIG. 8) including a second port (e.g., second port (804) of FIG. 8) connected to a connection node (e.g., connection node (850) of FIG. 8) of the circuit (406) and the second charging circuit (407), and a third port (e.g., third port (805) of FIG. 8) connected to a system power line, may include a first switch (e.g., first switch (830) of FIG. 8) for selectively connecting the first charging circuit (406) to the first port (803) or the second port (804), and a second switch (e.g., second switch (840) of FIG. 8) for selectively connecting the second charging circuit (407) to the first port (803) or the second port (804).

[0196] According to one embodiment, the second battery (189, 409) may be in a parallel relationship with the first battery (189, 408).

[0197] According to one embodiment, the external power supply (310, 410) may include a first type of external power supply that does not support PPS (programmable power supply) and a second type of external power supply that supports PPS.

[0198] According to one embodiment, when the first type of external power supply is connected to the connector (178, 301, 401) and the electronic device (101, 300, 800) is charged, the first battery (189, 408) and the second battery (189, 409) can receive power from the connector (178, 301, 401) through a battery management module (e.g., Qbat (450) of FIG. 8) included in the power management module (188, 802).

[0199] According to one embodiment, when the first type of external power supply is connected to the connector (178, 301, 401) and the electronic device (101, 300, 800) is charged, current limiting of the first battery (189, 408) may be performed through a first transistor included in the first charging circuit (406), and current limiting of the second battery (189, 409) may be performed through a second transistor included in the second charging circuit (407). The first transistor may be a transistor connected to an input terminal of the first charging circuit (406), and the second transistor may be a transistor connected to an input terminal of the second charging circuit (407).

[0200] According to one embodiment, the first switch (830) may connect the first charging circuit (406) to the second port (804) when the first type of external power supply is connected to the connector (178, 301, 401), and may connect the first charging circuit (406) to the first port (803) when the second type of external power supply is connected to the connector (178, 301, 401).

[0201] According to one embodiment, the second switch (840) may connect the second charging circuit (407) to the second port (804) when the first type of external power supply is connected to the connector (178, 301, 401), and may connect the second charging circuit (407) to the first port (803) when the second type of external power supply is connected to the connector (178, 301, 401).

[0202] In an electronic device according to one embodiment (e.g., electronic device (101) of FIG. 1, electronic device (300) of FIG. 3, electronic device (1000) of FIG. 10), a connector (e.g., connection terminal (178) of FIG. 1, connector (301) of FIG. 3, connector (401) of FIG. 4) including a power pin for supplying or receiving power in relation to an external power supply (e.g., power supply device (310) of FIG. 3, power supply device (1010) of FIG. 10), a charging circuit (e.g., charging circuit (1005) of FIG. 10) connected to a first battery (e.g., battery (189) of FIG. 1, first battery (408) of FIG. 10), and a limiter (e.g., limiter of FIG. 10) connected to a second battery (e.g., battery (189) of FIG. 1, second battery (408) of FIG. 10) in parallel with the first battery (189, 408)) A power management module (e.g., power management module (188) of FIG. 1, power management module (1002) of FIG. 10) including a first port (e.g., first port (1003) of FIG. 10) connected to the power pin, a second port (e.g., second port (1004) of FIG. 10) connected to the connection node (e.g., connection node (1040) of FIG. 10) of the first battery (189, 408) and the limiter (1006), and a third port (e.g., third port (1005) of FIG. 10) connected to a system power line may be included. The charging circuit (1005) may include a controller (1013) that controls the limiter (1006).

[0203] According to one embodiment, when the external power supply (310, 410) does not support a programmable power supply (PPS) and is connected to the connector (178, 301, 401) to charge the electronic device (101, 300, 1000), the current limiting of the first battery (189, 408) may be performed through a battery management module (450) included in the power management module (188, 1002), and the current limiting of the second battery (189, 409) may be performed by the limiter (1006).

[0204] According to one embodiment, the first battery (189, 408) can be charged from the connector (178, 301, 401) through the controller (1013) when the external power supply (310, 410) is connected to the connector (178, 301, 401) and the electronic device (101, 300, 1000) is charged.

[0205] According to one embodiment, the first battery (189, 408) may be discharged to the system power line via the second port (1004) and a battery management module (e.g., Qbat (450) of FIG. 10) included in the power management module (188, 1002) when the electronic device (101, 300, 1000) consumes power.

[0206]

[0207] Electronic devices according to the various embodiments disclosed in this document may take various forms. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to the embodiments of this document are not limited to the aforementioned devices.

[0208] The various embodiments of this document and the terminology used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "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" can include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0209] The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0210] Various embodiments of the present document may be implemented as software (e.g., a program (1740)) including one or more instructions stored in a storage medium (e.g., an internal memory (1736) or an external memory (1738)) readable by a machine (e.g., an electronic device (1701)). For example, a processor (e.g., a processor (1720)) of the machine (e.g., an electronic device (1701)) may call at least one instruction among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' simply means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently or temporarily on the storage medium.

[0211] According to one embodiment, the method according to various embodiments disclosed in this document may be provided as included in a computer program product. The computer program product may be traded as a product between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read-only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) through an application store (e.g., Play Store™) or directly between two user devices (e.g., smart phones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0212] According to various embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to various embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims

1. In an electronic device (101; 300; 400), A connector (178; 301; 401) including power pins for supplying or receiving power in relation to an external power supply (310; 410); A first charging circuit (406) connected to a first battery (189; 408); A second charging circuit (407) connected to a second battery (189; 409); A power management module (188; 402) including a first port (403) connected to the power pin, a second port (404) connected to a connection node (440) of the first battery (189; 408) and the first charging circuit (406), and a third port (405) connected to a system power line; and A first switch (430) for selectively connecting the second charging circuit (407) to the first port (404) or the third port (405) An electronic device (101; 300; 400) comprising:

2. In paragraph 1, The above second battery (189; 409) is An electronic device (101; 300; 400) in parallel with the first battery (189; 408).

3. In any one of paragraphs 1 and 2, The above external power supply (310; 410) is A first type of external power supply that does not support PPS (programmable power supply); and A second type of external power supply supporting PPS An electronic device (101; 300; 400) comprising:

4. In any one of paragraphs 1 to 3, The above first switch (430) is, When the first type of external power supply device is connected to the connector (178; 301; 401), the second charging circuit (407) is connected to the third port (405), An electronic device (101; 300; 400) that connects the second charging circuit (407) to the first port (403) when the second type of external power supply is connected to the connector (178; 301; 401).

5. In any one of paragraphs 1 to 4, When the first type of external power supply is connected to the connector (178; 301; 401) and the electronic device (101; 300; 400) is charged, An electronic device (101; 300; 400), wherein current limiting of the first battery (189; 408) is performed through a battery management module (Qbat) (450) included in the power management module (402), and current limiting of the second battery (189; 409) is performed through a transistor included in the second charging circuit (407).

6. In any one of paragraphs 1 to 5, The above transistor, An electronic device (101; 300; 400), which is a transistor connected to an input terminal of the second charging circuit (407).

7. In any one of paragraphs 1 to 6, When the above first type external power supply device is connected to the connector (178; 301; 401) and the electronic device (101; 300; 400) consumes power, An electronic device (101; 300; 400), wherein the first battery (189; 408) is discharged to the system power line through the battery management module (450), and the second battery (189; 409) is discharged to the system power line through the first switch (430).

8. In any one of paragraphs 1 to 7, When the second type of external power supply is connected to the connector (178; 301; 401) and the electronic device (101; 300; 400) is charged, An electronic device (101; 300; 400), wherein the first battery (189; 408) is charged from the connector (178; 301; 401) through the first charging circuit (406), and the second battery (189; 409) is charged from the connector (178; 301; 401) through the second charging circuit (407).

9. In any one of paragraphs 1 to 8, When the second type of external power supply device is connected to the connector (178; 301; 401) and the electronic device (101; 300; 400) consumes power, An electronic device (101; 300; 400), wherein the first battery (189; 408) is discharged to the system power line through the battery management module (450), and the second battery (189; 409) is discharged to the system power line through the first port (403) through the first switch (430).

10. In any one of paragraphs 1 to 9, The above electronic device (101; 300; 400) A second switch (440) for selectively connecting the second battery (189; 409) to the system power line. An electronic device further comprising (101; 300; 400).

11. In any one of paragraphs 1 to 10, When the second type of external power supply device is connected to the connector (178; 301; 401) and the electronic device (101; 300; 400) consumes power, The electronic device (101; 300; 400) wherein the second battery (189; 409) is discharged to the system power line through the second switch (440).

12. In electronic devices (101; 300; 800), A connector (178; 301; 401) including power pins for supplying or receiving power in relation to an external power supply (310; 410); A first charging circuit (406) connected to a first battery (189: 408); A second charging circuit (407) connected to a second battery (189: 409); A power management module (188; 802) comprising a first port (803) connected to the power pin, a second port (804) connected to a connection node (850) of the first charging circuit (406) and the second charging circuit (407), and a third port (805) connected to a system power line; A first switch (830) for selectively connecting the first charging circuit (406) to the first port (803) or the second port (804); and A second switch (840) for selectively connecting the second charging circuit (407) to the first port (803) or the second port (804) An electronic device (101; 300; 800) comprising:

13. In paragraph 12, The above second battery (189; 409) is An electronic device (101; 300; 800) in parallel with the first battery (189; 408).

14. In electronic devices (101; 300; 1000), A connector (178; 301; 401) including power pins for supplying or receiving power in relation to an external power supply (310; 410); A charging circuit (1005) connected to the first battery (189; 408); A limiter (1006) connected to a second battery (189; 408) in parallel with the first battery (189; 408); A power management module (188; 1002) comprising a first port (1003) connected to the power pin, a second port (1004) connected to the connection node (1040) of the first battery (189; 408) and the limiter (1006), and a third port (1005) connected to the system power line. Including, The above charging circuit (1005) A controller (1013) controlling the above limiter (1006) An electronic device (101; 300; 1000) comprising:

15. In paragraph 14, If the external power supply (310; 410) does not support PPS (programmable power supply) and is connected to the connector (178; 301; 401) to charge the electronic device (101; 300; 1000), The current limit of the above first battery (189; 408) is: It is performed through the battery management module (450) included in the above power management module (188; 1002), The current limit of the above second battery (189; 409) is: An electronic device (101; 300; 1000) performed by the above limiter (1006).

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