Power circuit and electronic device including the same

Abstract

An electronic device according to one embodiment includes a battery, a power supply circuit electrically connected to the battery and configured to manage power supplied to the electronic device, and a processor that receives power through the power supply circuit and controls the electronic device. When the power supply circuit receives a transport mode command from the processor at a first time, it can switch the operating mode of the electronic device to transport mode by cutting off the power supplied to the processor by the battery at a second time, which is a preset time delay from the first time. Various other embodiments may also be possible.

Description

Technology Field

[0001] Various embodiments relate to power supply circuits of electronic devices. Background Technology

[0003] A portable electronic device includes a battery and can be operated using power supplied from the battery. A portable electronic device including a battery may require charging if power exceeds a certain level. The battery of the portable electronic device can be charged to a certain level using a charger. When the portable electronic device is powered off, the system's circuitry and the battery may be disconnected to maintain the battery's remaining capacity for a longer period. The problem to be solved

[0005] Ship mode refers to a mode designed to eliminate internal leakage current by disconnecting electrical connections between all blocks within an electronic device. Automatic ship mode is a mode in which the electronic device voluntarily enters ship mode when the battery voltage falls below a specific level. Forced ship mode is a mode in which the device enters ship mode immediately upon receiving a ship mode command, regardless of the battery voltage. Operating in forced ship mode can be analogous to forcibly removing the battery from the electronic device.

[0006] One embodiment may provide an electronic device that switches the operating mode of an electronic device to a transport mode.

[0007] However, technical challenges are not limited to the technical challenges described above, and other technical challenges may exist. means of solving the problem

[0009] According to various embodiments, the electronic device comprises a battery, a power supply circuit electrically connected to the battery and configured to manage power supplied to the electronic device, and a processor that receives power through the power supply circuit and controls the electronic device, wherein the power supply circuit can switch the operating mode of the electronic device to a transport mode by cutting off power supplied to the processor by the battery at a second time, which is a preset time delay from the first time, when it receives a transport mode command from the processor at a first time.

[0010] A method for switching a transport mode, performed by an electronic device according to various embodiments, may include the operation of a power supply circuit of the electronic device receiving a transport mode command from a processor of the electronic device at a first time, and the operation of switching the operating mode of the electronic device to a transport mode by cutting off power supplied to the processor by a battery at a second time, which is a preset time delay from the first time.

[0011] According to various embodiments, an electronic device comprises a battery, a power supply circuit electrically connected to the battery and configured to manage power supplied to the electronic device, and a processor that receives power through the power supply circuit and controls the electronic device, wherein when the processor generates a transport mode command that switches the operating mode of the electronic device to a transport mode at a first time, the voltage value of the power supplied to the processor by the power supply circuit after a second time, which is a preset time delay from the first time, may be less than or equal to a preset voltage value. Effects of the invention

[0013] According to various embodiments, an electronic device that switches the operating mode of an electronic device to a transport mode may be provided. Brief explanation of the drawing

[0015] FIG. 1 is a block diagram of an electronic device in a network environment according to one embodiment. Figure 2 is a block diagram of a power management module and a battery according to one example. Figure 3 shows an example of an electronic device charging environment according to one example. Figure 4 shows an example of a part of an electronic device including a power supply circuit according to one example. FIG. 5 shows a circuit block diagram of a part of an electronic device including a power supply circuit according to one example. FIG. 6 is a flowchart of a method for switching the operation mode of an electronic device to a transport mode according to one embodiment. Figure 7 is a flowchart of a method for detecting a power-off situation of an electronic device according to one example. FIG. 8 is a flowchart of a method for switching the operating mode of an electronic device from transport mode to normal mode based on an input for power-on according to one example. FIG. 9 is a flowchart of a method for switching the operating mode of an electronic device from transport mode to normal mode based on an external power source according to one example. Specific details for implementing the invention

[0016] Hereinafter, various embodiments of the present description are described with reference to the accompanying drawings. However, this is not intended to limit the present description to specific embodiments and should be understood to include various modifications, equivalents, and / or alternatives to the embodiments of the present description.

[0018] FIG. 1 is a block diagram of an electronic device in a network environment according to various embodiments.

[0019] FIG. 1 is a block diagram of an electronic device (101) in 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) through 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) through 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) through a server (108). According to one embodiment, the electronic device (101) may include a processor (120), memory (130), input module (150), sound output module (155), display module (160), audio module (170), sensor module (176), interface (177), connection terminal (178), haptic module (179), camera module (180), power management module (188), battery (189), communication module (190), subscriber identification module (196), or antenna module (197). In some embodiments, at least one of these components (e.g., connection terminal (178)) may be omitted from the electronic device (101), or one or more other components may be added. In some embodiments, some of these components (e.g., sensor module (176), camera module (180), or antenna module (197)) may be integrated into a single component (e.g., display module (160)).

[0020] The processor (120) can control at least one other component (e.g., a hardware or software component) of the electronic device (101) connected to the processor (120) by executing software (e.g., a program (140)), and can perform various data processing or operations. According to one embodiment, as at least part of the data processing or operations, the processor (120) can store commands or data received from other components (e.g., a sensor module (176) or a communication module (190)) in volatile memory (132), process the commands or data stored in volatile memory (132), and store the resulting data in 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 an auxiliary processor (123) that can operate independently or together with it (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor). For example, if the electronic device (101) includes a main processor (121) and an auxiliary processor (123), the auxiliary processor (123) may be configured to use lower power than the main processor (121) or to be specialized for a designated function. The auxiliary processor (123) may be implemented separately from the main processor (121) or as part thereof.

[0021] The auxiliary processor (123) may control at least some of the functions or states associated with at least one component of the electronic device (101) (e.g., display module (160), sensor module (176), or communication module (190)) 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. According to one embodiment, the auxiliary processor (123) (e.g., image signal processor or communication processor) may be implemented as part of another functionally related component (e.g., camera module (180) or communication module (190)). According to one embodiment, the auxiliary processor (123) (e.g., neural network processing unit) may include a hardware structure specialized for processing an artificial intelligence model. The artificial intelligence model may be generated through machine learning. Such learning may be performed, for example, on the electronic device (101) itself where the artificial intelligence model is executed, or through a separate server (e.g., server (108)). The learning algorithm may 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 may include a plurality of artificial neural network layers.An artificial neural network may be 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 the hardware structure, the artificial intelligence model may include a software structure, either additionally or substantially.

[0022] The memory (130) can store various data used by at least one component of the electronic device (101) (e.g., processor (120) or sensor module (176)). The data may include, for example, input data or output data for software (e.g., program (140)) and related commands. The memory (130) may include volatile memory (132) or non-volatile memory (134).

[0023] The program (140) may be stored as software in memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0024] The input module (150) can receive commands or data to be used for a component of the electronic device (101) (e.g., processor (120)) from outside the electronic device (101) (e.g., user). The input module (150) may include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0025] The sound output module (155) can output a sound signal to the outside of the electronic device (101). The sound output module (155) may include, for example, a speaker or a receiver. The speaker may be used for general purposes, such as multimedia playback or recording playback. The receiver may be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from the speaker or as part thereof.

[0026] The display module (160) can visually provide information to an external (e.g., 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 said 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 the force generated by said touch.

[0027] The audio module (170) can convert sound into an electrical signal or, conversely, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150) or output sound through the sound output module (155) or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphones) connected directly or wirelessly to the electronic device (101).

[0028] The sensor module (176) can detect the operating state of the electronic device (101) (e.g., power or temperature) or the external environmental state (e.g., user state) and generate an electrical signal or data value corresponding to the detected state. According to one embodiment, the sensor module (176) may include, for example, a gesture sensor, a gyroscope sensor, a barometric pressure sensor, a magnetic sensor, an accelerometer sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biosensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0029] The interface (177) may support one or more specified protocols that can be used for the electronic device (101) to be connected directly or wirelessly to an external electronic device (e.g., electronic device (102)). According to one embodiment, the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0030] The connection terminal (178) may include a connector through which the electronic device (101) can 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).

[0031] The haptic module (179) can convert an electrical signal into a mechanical stimulus (e.g., vibration or movement) or an electrical stimulus that can be perceived by the user through tactile or kinesthetic senses. According to one embodiment, the haptic module (179) may include, for example, a motor, a piezoelectric element, or an electric stimulation device.

[0032] The camera module (180) can capture still images and video. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0033] 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 part of a power management integrated circuit (PMIC).

[0034] The battery (189) can supply power to at least one component of the electronic device (101). According to one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0035] The communication module (190) can support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between an 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 include one or more communication processors that operate independently of the processor (120) (e.g., application processor) and 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., cellular communication module, short-range wireless communication module, or GNSS (global navigation satellite system) communication module) or a wired communication module (194) (e.g., LAN (local area network) communication module, or power line communication module). The corresponding communication module among these communication modules can communicate with an external electronic device (104) through a first network (198) (e.g., a short-range communication network such as Bluetooth, WiFi (wireless fidelity) direct, or IrDA (infrared data association)) or a second network (199) (e.g., 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 may 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 identify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) using subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module (196).

[0036] The wireless communication module (192) can support 5G networks and next-generation communication technologies following 4G networks, for example, new radio access technology. NR access technology can support high-speed transmission of high-capacity data (enhanced mobile broadband (eMBB)), minimization of terminal power and connection of multiple terminals (massive machine type communications (mMTC)), or high reliability and low latency (ultra-reliable and low-latency communications (URLLC)). The wireless communication module (192) can support a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate, for example. The wireless communication module (192) can support various technologies for securing performance in the high-frequency band, such as beamforming, massive MIMO (multiple-input and multiple-output), 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), external electronic device (e.g., electronic device (104)), or network system (e.g., second network (199)). According to one embodiment, the wireless communication module (192) may support a Peak data rate (e.g., 20 Gbps or more) for eMBB realization, loss coverage (e.g., 164 dB or less) for mMTC realization, or U-plane latency (e.g., downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less) for URLLC realization.

[0037] An antenna module (197) can transmit a signal or power to or from an external source (e.g., an external electronic device). According to one embodiment, the antenna module (197) may include an antenna comprising a radiator made 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 a first network (198) or a second network (199), may be selected from the plurality of antennas, for example, by a 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, other components (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as part of the antenna module (197).

[0038] 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 surface (e.g., bottom surface) of the printed circuit board and capable of supporting a specified high frequency band (e.g., mmWave band), and a plurality of antennas (e.g., array antennas) disposed on or adjacent to a second surface (e.g., top surface or side surface) of the printed circuit board and capable of transmitting or receiving a signal of the specified high frequency band.

[0039] At least some of the above components can be connected to each other via a communication method between peripheral devices (e.g., bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)) and exchange signals (e.g., commands or data) with each other.

[0040] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) through 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 performed on the electronic device (101) may be performed on one or more of the external electronic devices (102, 104, or 108). For example, if the electronic device (101) needs to perform a function or service automatically or in response to a request from a user or another device, the electronic device (101) may request one or more external electronic devices to perform at least part of the function or service instead of performing the function or service itself or additionally. One or more external electronic devices that receive the above request may execute at least part of the requested function or service, or 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 provide the result as is or additionally processed as at least part of the response to the request. For this purpose, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device (101) may provide ultra-low latency services using, for example, distributed computing or mobile edge computing. In another embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server using machine learning and / or neural networks. According to one embodiment, the external electronic device (104) or the server (108) may be included within a 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.

[0041] The electronic device according to the various embodiments disclosed in this document may be of various forms. The electronic device may include, for example, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a consumer electronics device. The electronic device according to the embodiments of this document is not limited to the devices described above.

[0042] The various embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of said 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 said items unless the relevant context clearly indicates otherwise. In this document, phrases such as "A or B," "at least one of A and B," "at least one of A or B," "A, B or C," "at least one of A, B and C," and "at least one of A, B, or C" may each include any one of the items listed together in the corresponding phrase, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used simply to distinguish said components from other said components and do not limit said components in any other aspect (e.g., importance or order). Where any (e.g., 1st) component is referred to as "coupled" or "connected" to another (e.g., 2nd) component, with or without the terms "functionally" or "communicationly," it means that said any component may be connected to said other component directly (e.g., via a wire), wirelessly, or through a third component.

[0043] The term “module” as used in the 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, for example. A module may be a component formed integrally, or a minimum unit of said component or a part thereof 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).

[0044] Various embodiments of the present document may be implemented as software (e.g., program (140)) comprising one or more instructions stored in a storage medium (e.g., internal memory (136) or external memory (138)) readable by a machine (e.g., electronic device (101)). For example, a processor (e.g., processor (120)) of the machine (e.g., electronic device (101)) may call at least one of the one or more instructions stored in the storage medium and execute it. This enables the machine to be operated 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 that can be executed by an interpreter. The storage medium readable by the machine may be provided in the form of a non-transitory storage medium. Here, 'non-temporary' simply means that the storage medium is a tangible device and does not contain a signal (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently and cases where it is stored temporarily.

[0045] According to one embodiment, the method according to the various embodiments disclosed herein may be provided as included in a computer program product. The computer program product may be traded between a seller and a buyer as a product. The computer program product may be distributed in the form of a device-readable storage medium (e.g., compact disc read-only memory (CD-ROM)), or distributed online (e.g., download or upload) through an application store (e.g., Play Store™) or directly between two user devices (e.g., smartphones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily created on a device-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

[0046] According to various embodiments, each component (e.g., module or program) of the components described above may include a singular or multiple entities, and some of the multiple entities may be separated and placed in other components. According to various embodiments, one or more of the components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Generally or additionally, multiple components (e.g., module or program) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the multiple components in the same or similar manner as those performed by the corresponding component among the multiple components prior to integration. According to various embodiments, operations performed by the module, program, or other components 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.

[0048] FIG. 2 is a block diagram of a power management module and a battery according to various embodiments.

[0049] Referring to FIG. 2, the power management module (188) may include a charging circuit (210), a power regulator (220), or a fuel gauge (230).

[0050] The charging circuit (210) can charge the battery (189) using power supplied from an external power source to the electronic device (101). According to one embodiment, the charging circuit (210) can select a charging method (e.g., normal charging or fast charging) based on the type of external power source (e.g., power adapter, USB, or wireless charging), the magnitude of power that can be supplied from the external power source (e.g., about 20 watts or more), or at least some of the attributes of the battery (189), and can charge the battery (189) using the selected charging method. The external power source may be wired to the electronic device (101), for example, through a connection terminal (178), or wirelessly connected through an antenna module (197).

[0051] The power regulator (220) can generate multiple powers having different voltage or different current levels by adjusting the voltage level or current level of the power supplied from, for example, an external power source or battery (189). The power regulator (220) can adjust the power of the external power source or 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) may be implemented in the form of a low drop-out (LDO) regulator or a switching regulator. For example, the power regulator (220) may include a PWM engine (510) which will be described later with reference to FIG. 5.

[0052] The fuel gauge (230) can measure usage status information for the battery (189) (e.g., capacity, number of charges / discharges, voltage, or temperature of the battery (189)). For example, the fuel gauge (230) may include a battery cell voltage sensing circuit (550) and a battery current sensing circuit (580), which will be described later with reference to FIG. 5.

[0053] The power management module (188) can determine charge state information related to the charging of the battery (189) (e.g., lifespan, overvoltage, undervoltage, overcurrent, overcharge, overdischarge, overheating, short circuit, or swelling) based at least part of the measured usage state information, using, for example, a charging circuit (210), a power regulator (220), or a fuel gauge (230). The power management module (188) can determine whether the battery (189) is normal or abnormal based at least part of the determined charge state information. If the state of the battery (189) is determined to be abnormal, the power management module (188) can adjust the charging of the battery (189) (e.g., reducing the charging current or voltage, or stopping the charging). According to one embodiment, at least some of the functions of the power management module (188) may be performed by an external control device (e.g., a processor (120)).

[0054] According to one embodiment, the battery (189) may 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-shutdown function) to prevent performance degradation or burnout of the battery (189). The battery protection circuit (240) may additionally or substantially be configured as at least part of a battery management system (BMS) capable of performing various functions including cell balancing, measuring the capacity of the battery, measuring the number of charge / discharge cycles, measuring the temperature, or measuring the voltage.

[0055] According to one embodiment, at least a portion of the usage status information or charge status information of the battery (189) may be measured using a corresponding sensor (e.g., 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., temperature sensor) among the sensor modules (176) may be included as part of the battery protection circuit (140) or may be placed near the battery (189) as a separate device.

[0057] Figure 3 shows an example of an electronic device charging environment according to one example.

[0058] Referring to FIG. 3, the charging environment (10) of an electronic device may include a charging adapter (50) and an electronic device (300) (e.g., the electronic device (101) of FIG. 1). For example, the electronic device (300) may include a mobile communication terminal, a smart watch, or smart glasses. Smart glasses may provide virtual reality or augmented reality to the user through a display, and are not limited to the described embodiments.

[0059] Referring to FIG. 3, in a charging environment (10), a charging adapter (travel adapter: TA) (50) has one side connected to a power source (20) and can transmit power supplied from the power source (20) to an electronic device (300) connected to the other side.

[0060] The electronic device (300) may include a charging interface (310) (e.g., interface (177) of FIG. 1), a power supply circuit (330) (e.g., power management module (188) of FIG. 1), a battery (320) (e.g., battery (189) of FIG. 1), and a load (350). According to one embodiment, the electronic device (300) may further include a ground member (309) that supports grounding of the power supply circuit (330) (or charging circuit). The ground member (309) may include at least some components made of a metal material included in the electronic device (300). For example, the ground member (309) may include at least one part of a ground area of ​​a printed circuit board included in the electronic device (300), at least a portion of a housing (301), a metal sheet placed on the rear of a display (360) (e.g., a display module (160) of FIG. 1), and a metal structure surrounding a battery (320). According to one embodiment, the electronic device (300) further includes a housing (301) and a display (360) placed on one side of the housing (301) and exposed through said side, and the display (360) may be driven using power charged by the battery (320) or power delivered through a charging interface (310). The display (360) may output an object related to the remaining charge of the battery (320).

[0061] For example, the charging interface (310) may have a socket shape into which one side of the charging adapter (50) can be inserted. The charging interface (310) may transmit power delivered via a wire to the power supply circuit (330). According to one embodiment, the charging interface (310) may include a USB interface or a micro USB interface, but is not limited to the described embodiment. According to one embodiment, the charging interface (310) may include elements related to wireless charging (e.g., a wireless charging antenna or coil). For example, the charging interface (310) may receive power from an external power source via a wire or wireless connection.

[0062] The power supply circuit (330) may be electrically connected to the charging interface (310). According to one embodiment, the electronic device (300) may further include signal wiring (e.g., a cable or an FPCB or PCB with a signal line formed thereon) that electrically connects the power supply circuit (330) and the charging interface (310). The power supply circuit (330) may convert the voltage of the power delivered through the charging interface (310) to a certain magnitude and use the converted power to charge the battery (320) or supply it to the load (350).

[0063] According to one embodiment, the power supply circuit (330) controls the charging and discharging states of the battery (320) to stably supply power to the load (350) while efficiently handling the charging of the battery (320).

[0064] The load (350) is electrically connected to the power supply circuit (330) and can consume power stored in the battery (320) or power supplied through the charging interface (310). For example, the load (350) may include at least one processor (e.g., the processor (120) of FIG. 1). Or, the load (350) may include the aforementioned display (360). Or, the load (350) may include a configuration that operates power supplied through the battery (320) or the charging interface (310) among at least one component placed in the electronic device (300). For example, the load (350) may include at least one of a camera module, a communication module, a speaker, a microphone, or at least one sensor.

[0065] In the above description, a charging adapter (50) is illustrated with wired charging in mind, but if a wireless charging environment is considered, a wireless charger can replace the charging adapter (50). In the electronic device (300), wireless power supplied from the wireless charger can be supplied to a battery (320) or to a load (350) through a power supply circuit (330). For example, the wireless charger may include an external electronic device including a wireless charging antenna.

[0067] Figure 4 shows an example of a part of an electronic device including a power supply circuit according to one example.

[0068] Referring to FIG. 4, the electronic device (300) may include a battery (320), a power supply circuit (330), and a load (350). The power supply circuit (330) may include an input terminal protection circuit (331), a PMIC (332), a wireless charging unit (333), a control circuit (335), and a connection control switch (337).

[0069] An electronic device (300) according to one embodiment may include a battery (320) that is electrically connected to a power supply circuit (330) through a connection control switch (337). A connection control switch (337) capable of controlling the connection between the power supply circuit (330) and the battery (320) is described in detail with reference to FIG. 5.

[0070] The input protection circuit (331) can be connected to the charging interface (310) and the wireless charging unit (333) or PMIC (332). The input protection circuit (331) can protect the power supply circuit (330) by blocking the overvoltage when power is supplied from the charging adapter (50) through the charging interface (310) at a voltage greater than a specified size. The charging interface (310) can be electrically connected to the battery (320) through a connection control switch (337). The input protection circuit (331) may be omitted or its location changed depending on design changes.

[0071] The wireless charging unit (333) may include a mass flow controller (MFC) circuit and a voltage divider. The MFC circuit can smooth the power delivered through the coil for wireless charging included in the charging interface (310) and deliver the smoothed power to the voltage divider. The voltage divider can distribute the power delivered through the MFC circuit and deliver the distributed power to the control circuit (335) and the PMIC (332).

[0072] The PMIC (332) can receive power from an external power source through the input protection circuit (331) and the wireless charging unit (333). According to one aspect, one side of the PMIC (332) (e.g., the input side) may be connected to the output terminal of the input protection circuit (331) and the wireless charging unit (333). For example, the PMIC (332) may include a wired charging input switch connected to the input protection circuit (331) and a wireless charging input switch connected to the wireless charging unit (333). The output terminal of the wired charging input switch and the output terminal of the wireless charging input switch are connected to each other, and the output terminals of the switches may be connected to a buck circuit. The output terminal of the buck circuit may be connected to a load (350).

[0073] The PMIC (332) can receive power from the battery (320) through the connection control switch (337). According to one aspect, the output terminal of the aforementioned buck circuit may be shared with one side of the power supply control switch (QBAT), and the other side of the power supply control switch (QBAT) may be connected to the connection control switch (337). The connection control switch (337) can control the electrical connection between the battery (320) and the PMIC (332). For example, the connection control switch (337) can control the electrical connection between the battery (320) and the PMIC (332) to turn on or turn off through the switch.

[0074] The control circuit (335) can control the electrical connection between the battery (320) and the PMIC (332) by transmitting a control signal to the connection control switch (337). The control circuit (335) may be an integrated circuit (IC).

[0075] According to one aspect, the control circuit (335) may include a microcontroller unit (MCU). If the load (350) is a processor (e.g., the processor (120) of FIG. 1), the MCU may receive a control command from the processor to control the power supply circuit (330) and control the power supply circuit (330) based on the received control command. For example, a connection control switch (337) may be controlled based on the output of the MCU. The control circuit (335) may include an MCU (560) and a delay circuit (565), which will be described later with reference to FIG. 5.

[0076] According to another aspect, the control circuit (335) may be composed of a circuit (e.g., a register) capable of performing a preset operation according to a control command transmitted by the processor. The power supply circuit (330) may be controlled based on the output of the register based on the control command of the control circuit (335). For example, the connection control switch (337) may be controlled based on the output of the register.

[0077] When the electrical connection between the battery (320) and the PMIC (332) is controlled to turn on, a leakage path is formed by the cell sensing path of the battery (320) even when the load (350) is not using power (e.g., when the system of the electronic device (300) is powered off), so that the voltage of the battery (320) can reach 1.5V or less in a short period of time, and thus battery degradation may occur.

[0078] When the connection control switch (337) controls the electrical connection between the battery (320) and the PMIC (332) to turn off, power is not supplied to the power supply circuit (330) unless power is supplied from an external power source, and accordingly, power may not be supplied to the load (350). In the above case, since there is no leakage path connected to the battery (320), no leakage current is generated by the battery (320), and accordingly, the voltage of the battery (320) can be maintained at a high level for a relatively long period.

[0079] As described above, the state in which the battery (320) of the electronic device (300) is separated from the power supply circuit (330) and the load (350), or the operating mode for the above state, may be designated as ship mode. In other words, when the operating mode of the electronic device (300) is switched to ship mode, power from the battery (320) may not be supplied to the system of the electronic device (300).

[0080] The types of transport modes can be classified into i) an auto ship mode, in which the electronic device (300) automatically switches its operating mode to a transport mode by its own judgment without a user's command when it detects that the voltage value of the battery (320) is below a preset voltage value (e.g., 2.6 V), and ii) a forced ship mode, in which it switches to a transport mode by a user's command regardless of the voltage value of the battery (320).

[0081] Regardless of the type of transport mode, if the electronic device (300) is switched to transport mode immediately while in a powered-on state, a sudden power-off of the electronic device (300) may occur. A sudden power-off of the electronic device (300) may affect the electronic device (300). For example, if a sudden power-off occurs, the memory of the electronic device (300) (e.g., memory (130) in FIG. 1) may be damaged, and an interrupt may occur in the download of a basic app installed on the electronic device (300), causing the electronic device (300) to malfunction. A method for switching the operating mode of the electronic device (300) to transport mode to prevent such effects is described in detail below with reference to FIGS. 5 through 7.

[0083] FIG. 5 shows a circuit block diagram of a part of an electronic device including a power supply circuit according to one example.

[0084] Referring to FIG. 5, a circuit block diagram of a part of an electronic device (500) according to one example (e.g., the electronic device (101) of FIG. 1, or the electronic device (300) of FIG. 3) is shown. The electronic device (500) may include a power supply circuit (505) (e.g., the power supply circuit (330) of FIG. 4), a processor (530) (e.g., the processor (120) of FIG. 1), and a battery pack (540). Additionally, the electronic device (500) may further include a charging interface (e.g., the interface (177) of FIG. 1 or the charging interface (310) of FIG. 3).

[0085] The processor (530) may be an element corresponding to the aforementioned load (350), for example, the processor (530) may be an application processor (AP), and is not limited to the described embodiments.

[0086] The battery pack (540) may include a battery (541) having a positive and a negative electrode (e.g., the battery (189) of FIG. 1, or the battery (320) of FIG. 3) and a protection circuit (542) (e.g., the battery protection circuit (240) of FIG. 2).

[0087] The power supply circuit (505) of the electronic device (500) may include a PWM engine (510), a PMIC (520) (e.g., the PMIC (332) of FIG. 4), a battery cell voltage sensing circuit (550), an MCU (560), a delay circuit (565), a battery switch control circuit (570), and a battery current sensing circuit (580).

[0088] The PWM engine (510) can generate voltage values ​​required by the elements of the electronic device (500) based on the power received through the TA (50), and supply power to each element based on the generated voltage values.

[0089] The PMIC (520) may be a PMIC that controls power supplied to the processor (530). The electronic device (500) may include multiple PMICs that control power to different loads, and the PMIC (520) may be a PMIC that controls power supplied to the processor (530) among the multiple PMICs. The PMIC (520) may control only the power of the processor (530), or it may control the power of multiple loads including the processor (530), and is not limited to the described embodiments.

[0090] The battery cell voltage sensing circuit (550) can sense the voltage value of the battery (541), and the battery current sensing circuit (580) can sense the current value provided by the battery (541). For example, the battery cell voltage sensing circuit (550) and the battery current sensing circuit (580) may be included in a fuel gauge (e.g., the fuel gauge (230) of FIG. 2).

[0091] The MCU (560) receives a control command from the processor (530) to control the power supply circuit (505) and can control each element of the power supply circuit (505) based on the control command. The MCU (560) receives a transport mode command from the processor (530) to switch to transport mode and can control the battery switch control circuit (570) so that the battery (541) is disconnected from the power supply circuit (505) based on the transport mode command. At this time, the MCU (560) can delay the time during which the transport mode command is executed by the battery switch control circuit (570) through a delay circuit (565). For example, the delay circuit (565) can be implemented as a register and is not limited to the described embodiments.

[0092] The battery switch control circuit (570) may include switches (571, 572) capable of disconnecting the connection between the battery (541) and the power supply circuit (505). When the connection between the battery (541) and the power supply circuit (505) is disconnected by the battery switch control circuit (570), the power supplied from the battery (541) to the power supply circuit (505) is cut off, and subsequently, the power supplied from the battery (541) to the processor (530) may also be cut off.

[0093] Even if the processor (530) is performing sequences for powering off the electronic device (500), if the power supplied to the processor (530) is cut off, the sequences for powering off may not be completed normally and a rapid power off may occur. According to one embodiment, to prevent a rapid power off, the electronic device (500) may delay the time at which the connection between the battery (541) and the power supply circuit (505) is disconnected until the sequences for powering off normally are completed. For example, the electronic device (500) may delay the time at which the connection between the battery (541) and the power supply circuit (505) is disconnected through a delay circuit (565).

[0094] Below, with reference to FIGS. 6 and FIGS. 7, a method for switching the operation mode of an electronic device to a transport mode, which is performed with delay, is described in detail.

[0096] FIG. 6 is a flowchart of a method for switching the operation mode of an electronic device to a transport mode according to one embodiment.

[0097] The following operations 610 to 660 may be performed by an electronic device (e.g., the electronic device (101) of FIG. 1, the electronic device (300) of FIG. 3, or the electronic device (500) of FIG. 5).

[0098] In operation 610, the processor of the electronic device (e.g., the processor (120) of FIG. 1, or the processor (530) of FIG. 5) can determine whether a power-off situation of the electronic device has been detected. A method for detecting a power-off situation of the electronic device is described in detail below with reference to FIG. 7.

[0099] In operation 620, the processor can generate a transport mode command. The processor can transmit the generated transport mode command to the power supply circuit of the electronic device (e.g., the power supply circuit (330) of FIG. 3 or the power supply circuit (505) of FIG. 5).

[0100] The processor can perform operations 630 and 640 and operation 650 in parallel and independently.

[0101] In operation 630, the control circuit of the power supply circuit (e.g., the control circuit (335) of FIG. 3) may receive a transport mode command from the processor at a first time. For example, the control circuit (335) of the power supply circuit (330) of FIG. 3 may receive the transport mode command at a first time. As another example, the MCU (560) included in the control circuit of the power supply circuit (505) of FIG. 5 may receive the transport mode command at a first time. The first time may indicate a specific point in time when the power supply circuit receives the transport mode command.

[0102] In operation 640, the control circuit of the power supply circuit may delay the time of transition to transport mode according to the transport mode command to a second time. The second time may represent a point in time that is delayed by a preset time from the first time. For example, the control circuit (335) of the power supply circuit (330) may delay the execution (or execution) of the transport mode command to a second time.

[0103] According to one aspect, the power supply circuit may operate a timer with a preset time input at the time when a transport mode command is received from the processor (first time), and transmit the transport mode command to a connection control switch (e.g., the connection control switch (337) of FIG. 3, or the battery switch control circuit (570) of FIG. 5) at the time when the timer is terminated (second time).

[0104] According to another aspect, the power supply circuit can delay the execution of the transport mode command through a delay circuit (e.g., the delay circuit (565) of FIG. 5).

[0105] According to another aspect, the power supply circuit can delay the execution of a transport mode command to a second time through firmware (FW). The operation of the firmware can be updated in the same way as a program update. If a time-controlling element within the power supply circuit is included at the time of manufacture of the electronic device, the firmware can be updated so that the power supply circuit can perform operation 640.

[0106] According to one embodiment, a time difference (e.g., a delay time) between a first time and a second time may be pre-set. For example, a delay time (e.g., 6 seconds or more) may be set considering the processing time of operation 650 to be described later. According to another embodiment, the time difference between the first time and the second time may be updated based on the operation of the firmware.

[0107] While the aforementioned operations 630 and 640 are being performed, operation 650 can be performed in parallel and independently.

[0108] In operation 650, the processor may execute sequences for powering off the electronic device. The sequences for powering off may be preset sequences for normally and reliably shutting down the electronic device system. The preset sequences for shutting down the electronic device system may include a sequence in which the processor generates a transport mode command, but the sequence in which the processor generates a transport mode command may be executed through operation 620, and the remaining sequences may be executed in operation 650.

[0109] The time at which operation 650 ends may be earlier than the second time described in operation 640. For example, the processor may perform sequences for powering off the electronic device before the second time. The second time may be pre-set in consideration of the time at which operation 650 ends.

[0110] In operation 660, the connection control switch of the power supply circuit can switch the operating mode of the electronic device to a transport mode based on a transport mode command received from the control circuit. For example, the operating mode of the electronic device can be switched to a transport mode by the battery switch control circuit (570) turning off the switches (e.g., switches (571, 572) of FIG. 5). The time at which the operating mode of the electronic device is switched to a transport mode may be a second time.

[0111] The power supply circuit can switch the operating mode of the electronic device to transport mode by cutting off the power supplied to the processor by the battery of the electronic device (e.g., battery (189) of FIG. 1, battery (320) of FIG. 3, or battery (541) of FIG. 5). For example, a connection control switch that receives a transport mode command at a second time point can disconnect the electrical connection between the battery and the PMIC (e.g., PMIC (332) of FIG. 3, or PMIC (520) of FIG. 5) that manages the power supplied to the processor based on the transport mode command.

[0112] When the operating mode of the electronic device is switched to transport mode, the voltage value of the power supplied to the processor by the power supply circuit may be less than or equal to a preset voltage value. For example, the preset voltage value may be 0. For example, in transport mode, the system voltage (VSYS) value may be 0.

[0113] According to one aspect, the system voltage (VSYS) value maintains a normal value from a first time when a transport mode command is generated in the processor until a second time after the processor has terminated power-off sequences, and then shows 0 from a second time after the operating mode of the electronic device is switched to transport mode.

[0115] Figure 7 is a flowchart of a method for detecting a power-off situation of an electronic device according to one example.

[0116] With reference to FIG. 6, the operation 610 described above may include the following operations 710 and 720. For example, operation 610 may be performed when the system of the electronic device is powered on.

[0117] In operation 710, the processor (e.g., processor (120) of FIG. 1, or processor (530) of FIG. 5) can determine whether a power-off command has been received for the system of the electronic device (e.g., electronic device (101) of FIG. 1, electronic device (300) of FIG. 3, or electronic device (500) of FIG. 5). In one embodiment, the electronic device may receive a power-off command from a user through a user interface (e.g., interface (177) of FIG. 1). For example, the power-off command may be received through the power key of the electronic device. As another example, the power-off command may be received through an object displayed on the display of the electronic device.

[0118] In operation 720, the processor can determine whether the voltage value of the battery is less than or equal to a preset voltage value. For example, the preset voltage value may be a voltage value that allows the system to operate normally. According to one embodiment, the processor may preset a voltage value that allows sequences for powering off the electronic device to be performed.

[0119] Operations 710 and 720 can be performed in parallel and independently. In other words, if a condition for either of operations 710 and 720 is satisfied, it can be determined that a power-off command to the electronic device system has been received.

[0120] According to one aspect illustrated in FIG. 7, operations 710 and 720 are shown and described as being able to be performed in parallel and independently, but other embodiments may also be possible.

[0121] According to another aspect, if operation 710 is performed and it is determined that a power-off command for the electronic device has not been received, then operation 720 may be performed.

[0122] According to another aspect, if operation 720 is performed and it is determined that the voltage of the battery exceeds a preset voltage, then operation 710 may be performed.

[0124] Even when the battery has a sufficient voltage value to drive the electronic device, power must first be supplied to the processor in order for the sequence for powering on the electronic device to be performed, as the connection between the power supply circuit and the processor is disconnected in transport mode. Below, with reference to FIGS. 8 and 9, methods for switching the operating mode of the electronic device from transport mode to normal mode to supply power to the processor are described in detail.

[0125] FIG. 8 is a flowchart of a method for switching the operating mode of an electronic device from transport mode to normal mode based on an input for power-on according to one example.

[0126] According to one aspect, after the operation 660 described above with reference to FIG. 6 is performed, the following operations 810 to 830 may be performed.

[0127] In operation 810, the power supply circuit may receive an input for powering on an electronic device. For example, the electronic device may receive an input for powering on based on a specified operation (e.g., an input for powering on via a power key or button).

[0128] When the electronic device is switched to transport mode while the battery power is sufficient to operate the system, the user can exit transport mode via the device's power key without inputting external power to the device. For example, transport mode may be used for transportation after the production of the electronic device. As another example, the user can switch the operating mode of the electronic device to transport mode by turning off the device's power to efficiently utilize the battery.

[0129] In operation 820, the connection control switch of the power supply circuit can electrically connect the PMIC and the battery in response to an input for power-on. For example, the connection control switch can control the electrical connection between the PMIC and the battery to turn on through the switch. According to one aspect, the switch of the connection control switch can be actuated by a mechanical input for power-on by a user. For example, the mechanical input for power-on can apply physical pressure to the switch, and the switch can be turned on by the pressure. According to another aspect, the connection control switch can control the switch based on a separate battery for the connection control switch.

[0130] When the PMIC and the battery are electrically connected, power can be supplied to the processor through the PMIC.

[0131] In operation 830, the processor can perform sequences for power-on. For example, the system of the electronic device can be booted by the processor performing sequences for power-on.

[0133] FIG. 9 is a flowchart of a method for switching the operating mode of an electronic device from transport mode to normal mode based on an external power source according to one example.

[0134] According to another aspect, after the operation 660 described above with reference to FIG. 6 is performed, the following operations 910 and 920 may be performed.

[0135] In operation 910, the power supply circuit may electrically connect the power supply circuit (e.g., PMIC) and the battery when power is supplied from an external power source through a charging interface (e.g., the interface (177) of FIG. 1 or the charging interface (310) of FIG. 3). For example, the control circuit may transmit a command (e.g., a POK (power okay) signal) to turn on the switch to the connection control switch. When the PMIC and the battery are connected, power may be supplied to the processor through the PMIC. Referring again to FIG. 5, for example, the MCU (560) may transmit a POK signal to the battery switch control circuit (570) to turn on the switches (571, 572).

[0136] In operation 920, the processor can perform sequences for power-on.

[0138] According to various embodiments, the electronic device (300) includes a battery (320), a power supply circuit (330) electrically connected to the battery (320) and configured to manage power supplied to the electronic device (300), and a processor (530) that receives power through the power supply circuit (330) and controls the electronic device (300). The power supply circuit (330) can switch the operating mode of the electronic device (300) to a transport mode by cutting off the power supplied to the processor (530) by the battery (320) at a second time, which is a preset time delay from the first time, when it receives a transport mode command from the processor (530) at a first time.

[0139] When a power-off command of the electronic device (300) is received, the processor (530) can generate a transport mode command and transmit the generated transport mode command to the power supply circuit (330).

[0140] The processor (530) can generate a transport mode command when the voltage of the battery (320) is below a preset voltage and transmit the generated transport mode command to the power supply circuit (330).

[0141] The processor (530) can perform sequences for powering off the electronic device (300) before the second time.

[0142] The power supply circuit (330) may include a control circuit (335) that receives a transport mode command from a processor (530) and delays the execution of the transport mode command to a second time, a PMIC (332) that manages power supplied to the processor (530), and a connection control switch (337) that controls the electrical connection between the PMIC (332) and the battery (320) based on the transport mode command.

[0143] The control circuit (335) can delay the execution of the transport mode command to a second time through the firmware.

[0144] The control circuit (335) can delay the execution of the transport mode command to a second time through the delay circuit.

[0145] The connection control switch (337) can electrically connect the PMIC (332) and the battery (320) in response to an input for powering on the electronic device (300).

[0146] The electronic device (300) may further include a charging interface (310) that is electrically connected to the battery (320) via a connection control switch (337) and receives power from an external power source via wired or wireless connection.

[0147] The connection control switch (337) can electrically connect the PMIC (332) and the battery (320) when power is supplied from an external power source through the charging interface (310).

[0148] The electronic device (300) may be any one of a mobile communication terminal, a smart watch, and smart glasses.

[0149] A method for switching a transport mode, performed by an electronic device (300) according to various embodiments, may include an operation 630 in which a power supply circuit (330) of the electronic device (300) receives a transport mode command from a processor (530) of the electronic device (300) at a first time, and an operation 660 in which the power supply circuit (330) switches the operating mode of the electronic device (300) to a transport mode by cutting off power supplied to the processor (530) by a battery (320) at a second time, which is delayed by a preset time from the first time.

[0150] The transport mode switching method may further include an operation 630 in which the processor (530) receives a power-off command of the electronic device (300), an operation 620 in which the processor (530) generates a transport mode command when the power-off command is received, and an operation in which the processor (530) transmits the generated transport mode command to the power supply circuit (330).

[0151] The transport mode switching method may further include an operation 650 in which the processor (530) performs sequences for powering off the electronic device (300) before the second time.

[0152] The power supply circuit (330) may include a control circuit (335) that receives a transport mode command from a processor (530) and delays the execution of the received transport mode command to a second time, a PMIC (332) that manages power supplied to the processor (530), and a connection control switch (337) that controls the electrical connection between the PMIC (332) and the battery (320) based on the transport mode command.

[0153] The transport mode switching method may further include an operation 810 in which a power supply circuit (330) receives an input for powering on an electronic device (300), and an operation 820 in which a connection control switch (337) electrically connects a PMIC (332) and a battery (320) in response to the input for powering on.

[0154] The transport mode switching method may further include an operation 910 in which the connection control switch (337) electrically connects the PMIC (332) and the battery (320) when power is supplied from an external power source through the charging interface (310).

[0155] After the second time, the voltage value of the power supplied to the processor (530) by the power supply circuit (330) may be less than or equal to a preset voltage value.

[0156] According to various embodiments, the electronic device (300) includes a battery (320), a power supply circuit (330) electrically connected to the battery (320) and configured to manage power supplied to the electronic device (300), and a processor (530) that receives power through the power supply circuit (330) and controls the electronic device (300). When the processor (530) generates a transport mode command to switch the operating mode of the electronic device (300) to transport mode at a first time, the voltage value of the power supplied to the processor (530) by the power supply circuit (330) after a second time, which is a preset time delay from the first time, may be less than or equal to a preset voltage value.

[0157] The preset voltage value can be 0.

[0159] The hardware device described above may be configured to operate as one or more software modules to perform the operation of the embodiment, and vice versa.

[0160] Although the embodiments have been described above with reference to the limited drawings, those skilled in the art can apply various technical modifications and variations based thereon. For example, suitable results may be achieved even if the described techniques are performed in a different order than described, and / or if the components of the described system, structure, device, circuit, etc. are combined or assembled in a form different from described, or replaced or substituted by other components or equivalents.

[0161] Therefore, other implementations, other embodiments, and equivalents to the claims also fall within the scope of the claims set forth below.

Claims

Claim 1 An electronic device comprising: a battery; a power supply circuit electrically connected to the battery and configured to manage power supplied to the electronic device; and a processor that receives power through the power supply circuit and controls the electronic device, wherein the power supply circuit comprises: a battery cell voltage sensing circuit connected to a first pole of the battery through a first switch and connected to a second pole of the battery through a second switch; a micro controller unit (MCU) that receives a transport mode command from the processor at a first time and transmits the transport mode to a delay circuit; a delay circuit that transmits the transport mode command to a battery switch control circuit at a second time, which is a preset time delay from the first time; and a battery switch control circuit that controls the first switch and the second switch based on the transport mode command received from the delay circuit, wherein when the first switch and the second switch are open, the operating mode of the electronic device is switched to a transport mode. Claim 2 An electronic device according to claim 1, wherein the processor generates the transport mode command when a power-off command of the electronic device is received, and transmits the generated transport mode command to the MCU of the power supply circuit. Claim 3 An electronic device according to claim 1, wherein the processor generates the transport mode command when the voltage of the battery is below a preset voltage and transmits the generated transport mode command to the MCU of the power supply circuit. Claim 4 In claim 1, the processor performs sequences for powering off the electronic device before the second time, the electronic device. Claim 5 An electronic device according to claim 1, wherein the power supply circuit further includes a power management integrated circuit (PMIC) that manages power supplied to the processor, and the battery switch control circuit controls the electrical connection between the PMIC and the battery based on the transport mode command. Claim 6 delete Claim 7 delete Claim 8 In paragraph 5, the battery switch control circuit is an electronic device that electrically connects the PMIC and the battery in response to an input for powering on the electronic device. Claim 9 An electronic device according to claim 5, further comprising a charging interface that is electrically connected to the battery through the control of the battery switch control circuit and receives power from an external power source via wired or wireless connection. Claim 10 In claim 9, the battery switch control circuit is an electronic device that controls the PMIC and the battery to be electrically connected when power is supplied from the external power source through the charging interface. Claim 11 In paragraph 1, the electronic device is an electronic device that is any one of a mobile communication terminal, a smart watch, and smart glasses. Claim 12 delete Claim 13 delete Claim 14 delete Claim 15 delete Claim 16 delete Claim 17 delete Claim 18 delete Claim 19 delete Claim 20 delete

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