Electronic device and control method thereof

Abstract

This electronic device comprises: a memory for storing instructions; a power source unit including a main power source unit and a sub-power source unit; and at least one processor including processing circuitry, wherein when the instructions are executed individually or collectively by the at least one processor: if a configured event is identified, whether a main battery voltage of the main power source unit is equal to or lower than a first threshold value is identified; if the main battery voltage is equal to or lower than the first threshold value, whether a sub-battery voltage of the sub-power source unit is equal to or lower than a second threshold value is identified; if the sub-battery voltage is equal to or lower than the second threshold value, a control signal for turning off at least one discharge transistor included in the sub-power source unit is generated; and an over-discharge protection mode is executed by turning off the at least one discharge transistor by transmitting the control signal to the at least one discharge transistor on the basis of at least one switch connected to the at least one discharge transistor.

Description

Electronic device and method of controlling the same

[0001] The present disclosure relates to an electronic device and a control method thereof, and relates to an electronic device that performs an over-discharge protection mode and a control method thereof.

[0002] An electronic device containing a battery can perform operations of charging and discharging the battery. When external power is supplied to the electronic device, the battery can be charged. When external power is not supplied to the electronic device, the battery can supply stored power. In addition to supplying power to the electronic device by discharging the stored power in the battery, the battery can also discharge power.

[0003] For example, even when an electronic device is powered off, the power stored in the battery can discharge, causing leakage currents to flow through the circuits connected to the battery.

[0004] The present disclosure is designed to improve the above-described problem, and an object of the present disclosure is to provide an electronic device and a control method thereof for turning off a discharge transistor included in a sub-power supply unit through a switch coupled to the discharge transistor.

[0005] According to one embodiment, an electronic device includes a memory for storing instructions, a power supply unit including a main power supply unit and a sub-power supply unit, and at least one processor including processing circuitry, wherein the instructions, when individually or collectively executed by the at least one processor, when a set event is identified, identify whether a main battery voltage of the main power supply unit is below a first threshold value, and if the main battery voltage is below the first threshold value, identify whether a sub-battery voltage of the sub-power supply unit is below a second threshold value, and if the sub-battery voltage is below the second threshold value, generate a control signal for turning off at least one discharge transistor included in the sub-power supply unit, and transmit the control signal to the at least one discharge transistor based on at least one switch connected to the at least one discharge transistor, thereby turning off the at least one discharge transistor, thereby executing an over-discharge protection mode.

[0006] According to one embodiment, a portable battery device includes a memory for storing instructions, a power supply including a main power supply and a sub-power supply, and at least one processor including processing circuitry, wherein the instructions, when individually or collectively executed by the at least one processor, when a set event is identified, identify whether a main battery voltage of the main power supply is below a first threshold, and if the main battery voltage is below the first threshold, identify whether a sub-battery voltage of the sub-power supply is below a second threshold, and if the sub-battery voltage is below the second threshold, generate a control signal for turning off at least one discharge transistor included in the sub-power supply, and transmit the control signal to the at least one discharge transistor based on at least one switch connected to the at least one discharge transistor, thereby turning off the at least one discharge transistor, thereby executing an over-discharge protection mode.

[0007] FIG. 1 is a drawing for explaining an electronic device (100) that performs an over-discharge protection mode according to one embodiment.

[0008] FIG. 2 is a block diagram illustrating an electronic device (100) according to one embodiment.

[0009] FIG. 3 is a block diagram of an exemplary electronic device (100) capable of performing the operations described in this document.

[0010] FIG. 4 is a drawing for explaining an operation proceeding to an over-discharge protection mode according to one embodiment.

[0011] FIG. 5 is a drawing for explaining a sub-protection circuit module (196) according to one embodiment.

[0012] FIG. 6 is a drawing for explaining an operation of supplying or cutting off power to a battery according to one embodiment.

[0013] FIG. 7 is a drawing for explaining an operation of cutting off power to a battery according to one embodiment.

[0014] FIG. 8 is a drawing for explaining an operation of turning off a discharge transistor according to one embodiment.

[0015] FIG. 9 is a drawing for explaining a power supply operation performed depending on whether a sub-battery (195) is fastened, according to one embodiment.

[0016] FIG. 10 is a diagram for explaining the output voltage depending on whether the sub-battery (195) is connected or not, according to one embodiment.

[0017] FIG. 11 is a drawing for explaining the standby period in over-discharge prevention mode according to one embodiment.

[0018] FIG. 12 is a drawing for explaining the structure of a power supply unit (190) according to one embodiment.

[0019] Figure 13 is a drawing for explaining the input / output values ​​of the control processor (191).

[0020] FIG. 14 is a drawing for explaining a state in which the first discharge transistor (11) and the second discharge transistor (21) are turned on, according to one embodiment.

[0021] FIG. 15 is a drawing for explaining a state in which the first discharge transistor (11) and the second discharge transistor (21) are turned off, according to one embodiment.

[0022] Figure 16 is a drawing for explaining the operation of the control processor (191) controlling the first protection integrated circuit (13) and the second protection integrated circuit (23).

[0023] Figure 17 can explain the operation of transmitting a control signal through a power management integrated circuit (192).

[0024] Hereinafter, the present disclosure will be described in detail with reference to the attached drawings.

[0025] The terms used in the embodiments of this disclosure have been selected from widely used, current terms, taking into account the functions of this disclosure. However, these terms may vary depending on the intentions of those skilled in the art, precedents, the emergence of new technologies, etc. Furthermore, in certain cases, terms may be arbitrarily selected by the applicant, and in such cases, their meanings will be described in detail in the description of the relevant disclosure. Therefore, the terms used in this disclosure should not be defined simply as names of terms, but rather based on the meanings of the terms and the overall content of this disclosure.

[0026] In this specification, expressions such as “has,” “can have,” “includes,” or “may include” indicate the presence of a feature (e.g., a number, function, operation, or component such as a part), and do not exclude the presence of additional features.

[0027] The expression "at least one of A and / or B" should be understood to mean either "A" or "B" or "A and B".

[0028] As used herein, the expressions “first,” “second,” “first,” or “second,” etc., may describe various components, regardless of order and / or importance, and are only used to distinguish one component from another, but do not limit the components.

[0029] When it is said that a component (e.g., a first component) is “(operatively or communicatively) coupled with / to” or “connected to” another component (e.g., a second component), it should be understood that the component may be directly coupled to the other component, or may be connected through another component (e.g., a third component).

[0030] Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as "comprise" or "consist of" are intended to indicate the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but should be understood not to preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0031] In the present disclosure, a "module" or "part" performs at least one function or operation and may be implemented in hardware or software, or a combination of hardware and software. Furthermore, multiple "modules" or multiple "parts" may be integrated into at least one module and implemented as at least one processor, excluding any "modules" or "parts" that need to be implemented as specific hardware.

[0032] In this specification, the term user may refer to a person using an electronic device or a device using an electronic device (e.g., an artificial intelligence electronic device).

[0033] An embodiment of the present disclosure will be described in more detail with reference to the attached drawings below.

[0034] FIG. 1 is a drawing for explaining an electronic device (100) that performs an over-discharge protection mode according to one embodiment.

[0035] Electronic devices can implement over-discharge protection mode. Over-discharge protection mode may be designed to prevent damage to the battery due to long-term over-discharge. Even when implementing over-discharge protection mode, there is a risk of battery over-discharge due to leakage current, depending on the circuit structure.

[0036] The electronic device (100) can be powered by a power supply unit including a battery. The electronic device (100) can perform an over-discharge protection mode to prevent over-discharge (or complete discharge) of the battery.

[0037] Over-discharge protection mode can block power supply to the battery to prevent complete discharge. Over-discharge protection mode can also be used to prevent excessive battery discharge. Over-discharge protection mode can also be used to prevent damage caused by over-discharge when the battery is not used for a long period of time.

[0038] Over-discharge protection mode can protect battery cells. Over-discharge protection mode can prevent the battery from discharging when not in use for extended periods. Over-discharge protection mode can be described as a "ship mode."

[0039] According to one embodiment, the power supply of the electronic device (100) that is the target of the over-discharge protection mode may include a main power supply and a sub-power supply.

[0040] The electronic device (100) may separate the power paths of the main power supply and the sub-power supply in over-discharge protection mode. If the power paths are separated, the quiescent current value may increase. The quiescent current may increase if hardware components become smaller, functional components are combined, or additional functions are added to the hardware components.

[0041] For example, the electronic device (100) may be a foldable device. The foldable device may be a device in which at least one component included in the electronic device (100) is bendable.

[0042] In a foldable electronic device (100), a flexible printed circuit board (FPCB) connected to a battery (or power supply) may be connected to a main board via a hinge. In this structure, a physical short may occur due to a conductor or the like before power is connected. If a short occurs, a problem may arise in which the ground pin (GND PIN) is damaged.

[0043] In one embodiment, the portable battery device (200) can perform an over-discharge protection mode. The portable battery device (200) can supply power only when connected to a target device. The description related to the power supply (190) included in the electronic device (100) can be substantially identically applied to the portable battery device (200). The portable battery device (200) includes the power supply (190) and can perform an over-discharge protection mode.

[0044] FIG. 2 is a block diagram illustrating an electronic device (100) according to one embodiment.

[0045] An electronic device (100) may include a memory (120) for storing instructions, a power supply (190) including a main power supply (190-1) and a sub-power supply (190-2), or at least one processor (110) including processing circuitry. In at least one embodiment described in the present disclosure, the main power supply (190-1) may be described as a first power supply, and the sub-power supply (190-2) may be described as a second power supply.

[0046] According to one embodiment, at least one processor (110) may identify whether the main battery voltage of the main power supply (190-1) is below a first threshold value when a set event is identified. The set event may be described as a preset event.

[0047] According to one embodiment, at least one processor (110) can identify whether the sub-battery voltage of the sub-power supply (190-2) is below a second threshold value when the main battery voltage is below a first threshold value.

[0048] According to one embodiment, at least one processor (110) may generate a control signal to turn off at least one discharge transistor (11, 21) included in the sub power supply (190-2) when the sub battery voltage is below a second threshold value.

[0049] According to one embodiment, at least one processor (110) can execute an over-discharge protection mode by turning off at least one discharge transistor (11, 21) by transmitting a control signal to at least one discharge transistor (11, 21) based on at least one switch (12, 22) connected to at least one discharge transistor (11, 21).

[0050] According to one embodiment, at least one processor (110) can obtain the main battery voltage of the main power supply (190-1). At least one processor (110) can identify whether the main battery voltage is below a first threshold value. The main battery voltage may be a voltage supplied by the main battery (193) included in the main power supply (190-1).

[0051] According to one embodiment, at least one processor (110) can obtain the sub-battery voltage of the sub-power supply unit (190-2). At least one processor (110) can identify whether the sub-battery voltage is below a second threshold value. The sub-battery voltage may be a voltage supplied by the sub-battery (195) included in the sub-power supply unit (190-2).

[0052] According to one embodiment, at least one processor (110) can perform an over-discharge protection mode by monitoring the main battery voltage and the sub-battery voltage in real time.

[0053] In one embodiment, the over-discharge protection mode may be a mode that prevents the stored power in the main battery (193) and sub-battery (195) from being completely discharged.

[0054] According to one embodiment, when the main battery voltage is below a first threshold and the sub-battery voltage is below a second threshold, at least one processor (110) may generate a control signal to perform an over-discharge protection mode.

[0055] For example, the first threshold may be different from the second threshold.

[0056] For example, the first threshold may be the same as the second threshold.

[0057] According to one embodiment, at least one processor (110) may generate a control signal to turn off a discharge transistor included in a power supply (190). The operation of turning off the discharge transistor may include an operation of opening the discharge transistor or an operation of blocking current from flowing to the discharge transistor.

[0058] According to one embodiment, when a control signal is generated, at least one processor (110) can transmit the control signal to at least one discharge transistor included in the power supply (190).

[0059] According to one embodiment, the sub-power supply unit (190-2) may include a sub-battery (195) and a sub-protection circuit module (196).

[0060] According to one embodiment, the sub-protection circuit module (196) may include a first protection circuit module (10) including a first discharge transistor (11), a first switch (12), and a first protection integrated circuit (13).

[0061] According to one embodiment, at least one processor (110) can transmit a control signal to the first discharge transistor (11) via the first switch (12).

[0062] According to one embodiment, the sub-protection circuit module (196) may include a second protection circuit module (20) including a second discharge transistor (21), a second switch (22), and a second protection integrated circuit (23).

[0063] According to one embodiment, at least one processor (110) can transmit a control signal to a second discharge transistor (21) via a second switch (22).

[0064] According to one embodiment, at least one processor (110) may include a first protection circuit module (10) that may include a first dual transistor including a first discharge transistor (11) and a first charge transistor (14). A second protection circuit module (20) may include a second dual transistor including a second discharge transistor (21) and a second charge transistor (24).

[0065] According to one embodiment, the first protection integrated circuit (13) may be connected to the first switch (12) and the first charging transistor (14). The second protection integrated circuit (23) may be connected to the second switch (22) and the second charging transistor (24). The first protection integrated circuit (13) may control at least one of the first discharge transistor (11) or the first charging transistor (14) on its own without going through the control processor (191). The first protection integrated circuit (13) may control the on / off of the first discharge transistor (11) or the first charging transistor (14) based on a set voltage value or a set current value stored internally.

[0066] According to one embodiment, the electronic device (100) can control the first discharge transistor (11) through an additional operation in addition to the on / off control performed by the first protection integrated circuit (13). The electronic device (100) can determine a set event through the control processor (191). When the set event occurs, the electronic device (100) can generate a control signal for controlling the first discharge transistor (11) through the control processor (191). The control processor (191) can control the first discharge transistor (11) through the second line (L2), the connection substrate (198), and the third line (L3) using the generated control signal.

[0067] According to one embodiment, the electronic device (100) may include a connection board (198). At least one processor (110) may include a control processor (191). The connection board (198) may be connected to the control processor (191) and a sub-battery (195).

[0068] According to one embodiment, at least one processor (110) can transmit a control signal from a control processor (191) to a connection substrate (198). At least one processor (110) can transmit the control signal from the connection substrate (198) to the first switch (12) and the second switch (22). At least one processor (110) can transmit the control signal from the first switch (12) to the first discharge transistor (11). At least one processor (110) can transmit the control signal from the second switch (22) to the second discharge transistor (21).

[0069] According to one embodiment, the main power supply (190-1) may include a control processor (191), a power management integrated circuit (192), a main battery (193), a main protection circuit module (194), or a current limiter (197).

[0070] According to one embodiment, the control processor (191) may be coupled to a power management integrated circuit (192) and a current limiter (197).

[0071] In one embodiment, a power management integrated circuit (192) may be connected to a main battery (193). The main battery (193) may be connected to a main protection circuit module (194). A current limiter (197) may be connected to a connection board (198).

[0072] The connection structure for each configuration is described in Fig. 6.

[0073] According to one embodiment, at least one processor (110) may generate a control signal when the main battery voltage is below a first threshold and the sub-battery voltage is below a second threshold while a target device connected to the sub-battery (195) is not identified.

[0074] According to one embodiment, the target device may mean a device that is powered by at least one of the main battery (193) or the sub-battery (195).

[0075] For example, the electronic device (100) may include a target module. The target device may be a target module included in the electronic device (100). At least one battery among the main battery (193) or the sub-battery (195) may supply power to the target module included in the electronic device (100).

[0076] For example, at least one of the main battery (193) or the sub-battery (195) may supply power to an external target device. For example, the external target device may be a portable battery device (200). The operation and hardware configuration for performing an over-discharge protection mode in the electronic device (100) may be applied to the portable battery device (200). The portable battery device (200) may include a power supply unit (190) including a main power supply unit (190-1) and a sub-power supply unit (190-2). The portable battery device (200) may include sub-components included in the power supply unit (190) that are substantially identical.

[0077] According to one embodiment, the control signal may be in a pull-up state or a high state. At least one processor (110) may generate a control signal in a set state. At least one processor (110) may transmit the control signal in the set state to the first discharge transistor (11) and the second discharge transistor (21). A description related to this is described in FIG. 9.

[0078] FIG. 3 is a block diagram for explaining a specific configuration of the electronic device (100) of FIG. 2, according to one embodiment.

[0079] FIG. 3 is a block diagram of an exemplary electronic device (100) capable of performing the operations described in this document.

[0080] Referring to FIG. 3, the electronic device (100) may be one of various types of electronic devices, such as similar computing devices (not shown). The components, their relationships, and their functions illustrated in FIG. 3 are merely exemplary and do not limit the implementations described or claimed in this document. The electronic device (100) may be referred to as a mobile device, a user device, a multi-function device, a portable device, or a server.

[0081] The electronic device (100) may include components including at least one processor (110) (hereinafter referred to as processor (110)), at least one memory (120) (hereinafter referred to as memory (120)), at least one display (140) (hereinafter referred to as display (140)), at least one image sensor (150) (hereinafter referred to as image sensor (150)), at least one communication circuit (160) (hereinafter referred to as communication circuit (160)), and / or at least one sensor (170) (hereinafter referred to as sensor (170)). The above components are merely exemplary. For example, the electronic device (100) may include other components (e.g., power management integrated circuitry (PMIC), audio processing circuitry, an antenna, a rechargeable battery, or an input / output interface). For example, some components may be omitted from the electronic device (100). For example, some components may be integrated into one component.

[0082] The processor (110) may be implemented as one or more IC (integrated circuit (or circuitry)) chips and may perform various data processing. The processor (110) may include at least one electrical circuit and may individually or collectively perform distributed processing of instructions (or programs, data) stored in the memory (120). The processor (110) may include a processor assembly including one or more processing circuits. The processor (110) may include any processing circuit operative to control the performance and operations of one or more components (e.g., the memory (120), the display (140), the image sensor (150), the communication circuit (160), and / or the sensor (170)) of the electronic device (100). For example, the processor (110) (e.g., the application processor (AP)) may be implemented as a system on chip (SoC) (e.g., a single chip or a chipset). For example, the processor (110) may be implemented with multiple cores (or at least one core circuit), multiple chips, or multiple chipsets. For example, the processor (110) may include one or more processing circuits. For example, the processor (110) may include one or more processing circuits configured to individually and / or collectively perform various functions of the present disclosure. As a non-limiting example, at least a portion of the processor (110) may be included in a first chip of the electronic device (100), and at least another portion of the processor (110) may be included in a second chip of the electronic device (100) that is different from the first chip of the electronic device (100).

[0083] For example, the processor (110) may include a central processing unit (CPU) (111), a graphics processing unit (GPU) (112), a neural processing unit (NPU) (113), an image signal processor (ISP) (114), a display controller (115), a memory controller (116), a storage controller (117), a communication processor (CP) (118), and / or a sensor interface (119). These components of the processor (110) are merely exemplary. For example, the processor (110) may further include other components. For example, some components of the processor (110) may be omitted from the processor (110). For example, some components of the processor (110) may be included as separate components of the electronic device (100) outside the processor (110). For example, some components of the processor (110) (e.g., memory controller (116)) may be included within other components (e.g., at least a portion of memory (120), an interface (e.g., available for connection to at least one component of the electronic device (100)), a display (140) and / or an image sensor (150)).

[0084] The processor (110) may cause other components of the electronic device (100) to perform various operations by executing instructions stored in the memory (120). The CPU (111) (or central processing circuit) may be configured to control components of the processor (110) based on the execution of instructions stored in the memory (120) (e.g., volatile memory (121) and / or non-volatile memory (122)). The GPU (112) (or graphics processing circuit) may be configured to execute parallel operations (e.g., rendering). The NPU (113) (or neural processing circuit, or artificial intelligence (AI) chip) may be configured to execute operations for an artificial intelligence model (e.g., convolution computation). The ISP (114) (or image signal processing circuit) may be configured to process a raw image acquired through the image sensor (150) into a format suitable for a component within the electronic device (100) or a component of the processor (110). The display controller (115) (or display control circuit, or display processing unit (DPU)) may be configured to process an image acquired from the CPU (111), the GPU (112), the ISP (114), or the memory (120) (e.g., the volatile memory (121)) into a format suitable for the display (140). The memory controller (116) (or memory control circuit) may be configured to control reading data from the volatile memory (121) and writing data to the volatile memory (121). The storage controller (117) (or storage control circuit) may be configured to control reading data from the nonvolatile memory (122) and writing data to the nonvolatile memory (122).The CP (118) (communication processing circuit) may be configured to process data acquired from a component of the processor (110) into a format suitable for transmission to another electronic device via the communication circuit (160), or to process data acquired from another electronic device via the communication circuit (160) into a format suitable for processing by the component of the processor (110). For example, the communication circuit (160) may include one or more communication circuits. The sensor interface (119) (or sensing data processing circuit, sensor hub) may be configured to process data about the state of the electronic device (100) and / or the state of the surroundings of the electronic device (100), acquired via the sensor (170), into a format suitable for the component of the processor (110).

[0085] The memory (120) may include one or more storage media (or one or more storage devices). For example, the memory (120) may include a memory assembly including one or more storage media. For example, the one or more storage media may include permanent memory (e.g., non-volatile memory (122)) such as a hard drive, flash memory, read-only memory (ROM), semi-permanent memory (e.g., volatile memory (121)) such as random access memory (RAM), any other suitable type of storage (or storage assembly), or any combination thereof. The memory (120) may include cache memory, which is one or more different types of memory used to temporarily store data for a function or feature of the electronic device (100). As a non-limiting example, the cache memory may be included within the processor (110). The memory (120) may be fixedly embedded within the electronic device (100) or incorporated into one or more suitable types of components (e.g., a subscriber identity module (SIM) card and / or a secure digital (SD) card) that may be repeatedly inserted into and removed from the electronic device (100).

[0086] For example, the memory (120) may store one or more software applications, such as an operating system (or system) software application, a firmware software application, a driver software application, a plug-in (e.g., add-in, add-on, and / or applet) software application, and / or any other suitable software applications. For example, the one or more software applications may include instructions executable by the processor (110). For example, the memory (120) may store instructions callable by an application programming interface (API). For example, the memory (120) may store instructions within a library.

[0087] FIG. 4 is a drawing for explaining an operation proceeding to an over-discharge protection mode according to one embodiment.

[0088] Referring to FIG. 4, the electronic device (100) can store a first threshold value (th1) for performing an over-discharge protection mode. The electronic device (100) can obtain a battery voltage. The electronic device (100) can perform the over-discharge protection mode by comparing the battery voltage with the stored first threshold value. The electronic device (100) can measure the battery voltage in real time.

[0089] For example, the electronic device (100) can measure both the main battery voltage of the main power supply and the sub-battery voltage of the sub-power supply. It can identify whether both the main battery voltage and the sub-battery voltage are below a first threshold. If both the main battery voltage and the sub-battery voltage are below the first threshold, the electronic device (100) can perform an over-discharge protection mode.

[0090] According to one embodiment (410), the first threshold may be about 4 V.

[0091] According to one embodiment (420), the first threshold may be about 3.7 V.

[0092] According to one embodiment (430), the first threshold may be about 3.4 V.

[0093] According to one embodiment (440), the first threshold may be about 2.6 V.

[0094] In one embodiment, the first threshold may vary depending on the type of battery cell. The first threshold may vary depending on the user's settings.

[0095] FIG. 5 is a drawing for explaining a sub-protection circuit module (196) according to one embodiment.

[0096] In Fig. 5, the first protection circuit module (10) included in the sub-protection circuit module (196) is described. The description of the first protection circuit module (10) can be substantially equally applied to the second protection circuit module (20).

[0097] According to one embodiment, the electronic device (100) may include a power supply unit (190). The electronic device (100) may be supplied with power through the power supply unit (190). The power supply unit (190) may include a main power supply unit (190-1) and a sub-power supply unit (190-2). The sub-power supply unit (190-2) may include a first protection circuit module (10).

[0098] According to one embodiment, the first protection circuit module (10) may be a module for preventing damage due to discharge of the sub-battery (195). For example, the first protection circuit module (10) may include at least one of a first discharge transistor (11), a first switch (12), a first protection integrated circuit (13), or a first charging transistor (14).

[0099] The first discharge transistor (11) may be a transistor used when the sub-battery (195) is discharged. When the sub-battery (195) is charged, the first discharge transistor (11) may be used as a charging path.

[0100] The first switch (12) may be a switch that connects the first discharge transistor (11) and the first protection integrated circuit (13). The electronic device (100) may transmit a control signal to the first discharge transistor (11) through the first switch (12).

[0101] The first protection integrated circuit (13) can perform various operations to prevent discharge of the sub-battery (195). For example, the first protection integrated circuit (13) can perform at least one of over-discharge protection, over-charge protection, over-current protection, or short-circuit protection.

[0102] The first charging transistor (14) may be a transistor used when the sub-battery (195) is charged.

[0103] For example, the first discharge transistor (11) and the first charge transistor (14) can be described as dual MOSFETs.

[0104] According to one embodiment, when performing an over-discharge protection mode, the electronic device (100) can transmit a control signal to the first discharge transistor (11) through the first switch (12). The electronic device (100) can turn off the first discharge transistor (11) through the control signal.

[0105] FIG. 6 is a drawing for explaining an operation of supplying or cutting off power to a battery according to one embodiment.

[0106] Referring to FIG. 6, the electronic device (100) may include a power supply unit (190). The electronic device (100) may be supplied with power through the power supply unit (190). The power supply unit (190) may include a main power supply unit (190-1) and a sub-power supply unit (190-2). The main power supply unit (190-1) and the sub-power supply unit (190-2) may be connected through a connection board (198).

[0107] The main power supply (190-1) may include at least one of a control processor (191) (e.g., CPU (111) of FIG. 3), a power management integrated circuit (192), a main battery (193), a main protection circuit module (194), or a current limiter (197).

[0108] The main power supply (190-1) can supply power through the main battery (193).

[0109] The control processor (191) can generate control signals for performing various control operations related to the power supply (190). The control processor (191) can be connected to at least one of a power management integrated circuit (192), a current limiter (197), or a connection board (198). For example, the control processor (191) can be connected to the power management integrated circuit (192), the current limiter (197), and the connection board (198).

[0110] For example, the control processor (191) may include an application processor (AP).

[0111] The power management integrated circuit (192) can transmit a control signal for performing a control operation related to the main power supply (190-1). The power management integrated circuit (192) can manage a communication protocol related to the main power supply (190-1). The power management integrated circuit (192) can distribute or regulate power related to the main power supply (190-1). The power management integrated circuit (192) can monitor power related to the main power supply (190-1).

[0112] The main battery voltage and the system voltage can be distinguished through the power management integrated circuit (192).

[0113] A power management integrated circuit (192) may be connected to a control processor (191) and a main battery (193).

[0114] For example, the power management integrated circuit (192) may include an IF PMIC (Interface Power Management Integrated Circuit).

[0115] The main battery (193) may include a battery pure cell included in the main power supply (190-1). The main battery (193) may be connected to a main protection circuit module (194).

[0116] The main protection circuit module (194) may be a module for protecting the main power supply (190-1). For example, the main protection circuit module (194) may perform at least one of over-discharge protection, over-charge protection, over-current protection, or short-circuit protection.

[0117] For example, the main protection circuit module (194) may include at least one of a third protection circuit module (30) or a fourth protection circuit module (40). The third protection circuit module (30) may be a primary-side protection circuit module, and the fourth protection circuit module (40) may be a secondary-side protection circuit module.

[0118] For example, the structures of the third protection circuit module (30) and the fourth protection circuit module (40) may be substantially identical.

[0119] The third protection circuit module (30) may be a module for preventing damage caused by discharge of the main battery (193). The third protection circuit module (30) may include at least one of a third discharge transistor (31), a third switch (32), a third protection integrated circuit (33), or a third charging transistor (34).

[0120] Each of the third discharge transistor (31), the third switch (32), the third protection integrated circuit (33), and the third charging transistor (34) may correspond to the first discharge transistor (11), the first switch (12), the first protection integrated circuit (13), and the first charging transistor (14) of FIG. 5. Duplicate descriptions are omitted.

[0121] The fourth protection circuit module (40) may be a module for preventing damage caused by discharge of the main battery (193). The fourth protection circuit module (40) may include at least one of a fourth discharge transistor (41), a fourth switch (42), a fourth protection integrated circuit (43), or a fourth charging transistor (44).

[0122] Each of the fourth discharge transistor (41), the fourth switch (42), the fourth protection integrated circuit (43), and the fourth charging transistor (44) may correspond to the first discharge transistor (11), the first switch (12), the first protection integrated circuit (13), and the first charging transistor (14) of Fig. 5. Duplicate descriptions are omitted.

[0123] The current limiter (197) can limit the current from flowing above a threshold value. The current limiter (197) can limit the current value to a threshold value. The current limiter (197) can prevent excessive current from flowing. For example, the current limiter (197) can block the flow of current.

[0124] The sub-battery voltage and the system voltage can be distinguished through the current limiter (197).

[0125] The current limiter (197) may be connected to at least one of the control processor (191) or the connection board (198). For example, the current limiter (197) may be connected to the control processor (191) and the connection board (198).

[0126] The sub power supply (190-2) can supply power through the sub battery (195).

[0127] The sub-power supply unit (190-2) may include at least one of a sub-battery (195) or a sub-protection circuit module (196).

[0128] The sub-battery (195) may include a battery pure cell included in the sub-power supply unit (190-2). The sub-battery (195) may be connected to a sub-protection circuit module (196).

[0129] For example, the sub-protection circuit module (196) may include at least one of a first protection circuit module (10) or a second protection circuit module (20). The first protection circuit module (10) may be a primary-side protection circuit module, and the second protection circuit module (20) may be a secondary-side protection circuit module.

[0130] For example, the structures of the first protection circuit module (10) and the second protection circuit module (20) may be substantially identical.

[0131] The first protection circuit module (10) may be a module for preventing damage caused by discharge of the sub-battery (195). For example, the first protection circuit module (10) may include at least one of a first discharge transistor (11), a first switch (12), a first protection integrated circuit (13), or a first charging transistor (14).

[0132] Each of the first discharge transistor (11), the first switch (12), the first protection integrated circuit (13), and the first charging transistor (14) may correspond to the first discharge transistor (11), the first switch (12), the first protection integrated circuit (13), and the first charging transistor (14) of FIG. 5. Duplicate descriptions are omitted.

[0133] The second protection circuit module (20) may be a module for preventing damage caused by discharge of the sub-battery (195). For example, the second protection circuit module (20) may include at least one of a second discharge transistor (21), a second switch (22), a second protection integrated circuit (23), or a second charging transistor (24).

[0134] Each of the second discharge transistor (21), the second switch (22), the second protection integrated circuit (23), and the second charging transistor (24) may correspond to the first discharge transistor (11), the first switch (12), the first protection integrated circuit (13), and the first charging transistor (14) of Fig. 5. Duplicate descriptions are omitted.

[0135] The main power supply (190-1) and the sub power supply (190-2) can be connected through a connection board (198).

[0136] The connection board (198) may represent a board for connecting the main power supply (190-1) and the sub power supply (190-2).

[0137] For example, the connection board (198) may include a first connector and a second connector. The first connector may be connected to the main power supply (190-1). The second connector may be connected to the sub power supply (190-2).

[0138] For example, the electronic device (100) may be implemented as a foldable device. The foldable device may include a hinge portion connecting a first housing and a second housing. A connection substrate (198) may be connected to the hinge portion.

[0139] The control processor (191) can transmit a control signal to the sub-protection circuit module (196) via the connection board (198). The control signal may be a signal for performing an over-discharge protection mode. Performing the over-discharge protection mode may include an operation of turning off the first discharge transistor (11). The control signal may include a signal for turning off the first discharge transistor (11).

[0140] The control signal can be transmitted to the first protection circuit module (10) of the sub protection circuit module (196). The control signal can be transmitted to the first discharge transistor (11) via the first switch (12).

[0141] The control signal can be transmitted to the second protection circuit module (20) of the sub protection circuit module (196). The control signal can be transmitted to the second discharge transistor (21) via the second switch (22).

[0142] While performing in over-discharge protection mode, the first discharge transistor (11) and the second discharge transistor (21) may be turned off.

[0143] For example, the control processor (191) may be connected to a current limiter (197) via a first line (L1).

[0144] For example, the control processor (191) can be connected to the connection board (198) via the second line (L2).

[0145] For example, the connection substrate (198) can be connected to the first discharge transistor (11) and the second discharge transistor (21) via the third line (L3).

[0146] According to a comparative example, in the existing circuit, when operating in the over-discharge protection mode, the power supply paths of the battery voltage (Vmain, Vsub) and the system voltage (Vsys) were blocked. An electronic device (100) according to an embodiment can control at least one discharge transistor (D-FET) while operating in the over-discharge protection mode. When the discharge transistor is controlled in the over-discharge protection mode, the leakage current value can be improved even at a voltage level with a large discharge capacity per voltage. If the leakage current value is improved, problems caused by long-term storage and the over-discharge period can be improved.

[0147] According to one embodiment, the electronic device (100) can control the discharge path depending on whether a battery is attached or not in a foldable (or flip) type device. If the discharge path depending on whether a battery is attached or not is controlled, problems in the FPCB process can be solved.

[0148] The electronic device (100) can prevent over-discharging of a battery that occurs when the electronic device (100) is not used for a long period of time. By controlling the discharge transistor, leakage current can be reduced, and the remaining power supply time (or standby time) of the battery can be increased.

[0149] The electronic device (100) can turn off the sub-power supply unit (190-2) itself by controlling the first discharge transistor (11) and the second discharge transistor (21) included in the sub-power supply unit. When the sub-power supply unit (190-2) is turned off, the quiescent current can be reduced.

[0150] For example, the first switch (12) and the second switch (22) may include control terminals (or control elements). The electronic device (100) may open the control terminals included in the first switch (12) and the second switch (22) to cut off the power supply to the sub-battery (195). The electronic device (100) may not cut off the power supply to the sub-battery (195) by closing the control terminals included in the first switch (12) and the second switch (22).

[0151] FIG. 7 is a drawing for explaining an operation of cutting off power to a battery according to one embodiment.

[0152] For example, the operations of FIGS. 7 to 9 may be performed by a control processor (191) included in an electronic device (100). The control processor (191) may be included in at least one processor (110). The control processor (191) may be implemented as a CPU (111) or NPU (113) of FIG. 3.

[0153] Referring to FIG. 7, at operation 705, the electronic device (100) may identify whether a configured event related to power-off has occurred (705). Power-off may include an operation of cutting off the power supply of the battery. The configured event may include at least one of an event in which a user input for power-off is received or an event in which the remaining power ratio of the battery is below a threshold ratio.

[0154] An event in which a user input for power-off is received may be an event in which a user command for power-off is received by a user. An event in which the remaining battery power percentage is below a threshold percentage may be an event in which the percentage representing the remaining power of the total battery power (remaining power percentage) is identified as being below a threshold percentage.

[0155] If the set event is not identified (705-N), the electronic device (100) may repeat operation 705.

[0156] In operation 710, when a set event is identified (705-Y), the electronic device (100) can obtain the main battery voltage of the main power supply (190-1). The electronic device (100) can obtain the main battery voltage through the power management integrated circuit (192).

[0157] In operation 715, the electronic device (100) may identify whether the main battery voltage is below a first threshold. The first threshold may be a threshold corresponding to a power management integrated circuit (192).

[0158] For example, a power management integrated circuit (192) can obtain the main battery voltage and perform a comparison operation with a first threshold value.

[0159] For example, a control processor (191) may obtain a main battery voltage through a power management integrated circuit (192) and perform a comparison operation with a first threshold value. The control processor (191) and the power management integrated circuit (192) may be connected to each other. The control processor (191) of the electronic device (100) may obtain the main battery voltage through the power management integrated circuit (192).

[0160] If the main battery voltage is below the first threshold (715-Y), in operation 720, the electronic device (100) can obtain the sub-battery voltage of the sub-power supply (190-2).

[0161] If the main battery voltage exceeds the first threshold (715-N), the electronic device (100) may repeat operation 715.

[0162] At operation 725, the electronic device (100) can identify whether the sub-battery voltage is below a second threshold. The second threshold may be a threshold corresponding to a current limiter (197).

[0163] If the sub-battery voltage exceeds the second threshold (725-N), the electronic device (100) may repeat operation 725.

[0164] If the sub-battery voltage is below the second threshold (725-Y), at operation 730, the electronic device (100) may cut off the power supply to the battery.

[0165] For example, a current limiter (197) can obtain a sub-battery voltage and perform a comparison operation with a first threshold value.

[0166] For example, the control processor (191) may obtain the sub-battery voltage through the current limiter (197) and perform a comparison operation between the sub-battery and a second threshold value. The control processor (191) and the current limiter (197) may be connected to each other. The control processor (191) of the electronic device (100) may obtain the sub-battery voltage through the current limiter (197).

[0167] The main battery voltage (Vmain) and sub-battery voltage (Vsub) are described in Fig. 12.

[0168] For example, the first threshold and the second threshold may be the same.

[0169] For example, the first threshold and the second threshold may be different.

[0170] FIG. 8 is a drawing for explaining an operation of turning off a discharge transistor according to one embodiment.

[0171] Referring to FIG. 8, in operation 830, the electronic device (100) may cut off the power supply of the battery. Operation 830 may correspond to operation 730 of FIG. 7.

[0172] After the power supply of the battery is cut off, in operation 835, the electronic device (100) can obtain the input / output voltage of the control processor (191).

[0173] In operation 840, the electronic device (100) can identify whether the input / output voltage of the control processor (191) is below a third threshold value. The input / output voltage of the control processor (191) is described in FIG. 13.

[0174] If the input / output voltage of the control processor (191) exceeds the third threshold value (840-N), the electronic device (100) can repeatedly perform operations 835 and 840.

[0175] If the input / output voltage of the control processor (191) is lower than or equal to the third threshold value (840-Y), in operation 845, the electronic device (100) can set the over-discharge protection mode. The electronic device (100) can set (or identify) the state of the control pin of the sub-protection circuit module (196) to enter the over-discharge protection mode. The electronic device (100) can identify the state of the control pin of the sub-protection circuit module (196) to enter the over-discharge protection mode.

[0176] In operation 850, the electronic device (100) can identify whether the state of the control pin of the sub-protection circuit module (196) is set. For example, the set state may be a pull-up state (or high state) or a pull-down state (or low state). The set state may be changed depending on the circuit implementation or user settings.

[0177] If the state of the control pin of the sub-protection circuit module (196) is a preset state (850-Y), in operation 855, the electronic device (100) can identify whether a threshold time has elapsed. The electronic device (100) can identify whether a threshold time has elapsed from the time at which the power supply of the battery was cut off in operation 830. The threshold time can be changed according to the user's settings.

[0178] If the state of the control pin of the sub-protection circuit module (196) is not set (850-N), the electronic device (100) can repeatedly perform operation 850.

[0179] When the threshold time elapses (855-Y), in operation 860, the electronic device (100) may turn off the discharge transistor included in the sub-power supply unit (190-2). The discharge transistor included in the sub-power supply unit (190-2) may include a first discharge transistor (11) and a second discharge transistor (21).

[0180] If the threshold time has not elapsed (855-N), the electronic device (100) may repeat operation 855.

[0181] FIG. 9 is a drawing for explaining a power supply operation performed depending on whether a sub-battery (195) is fastened, according to one embodiment.

[0182] Referring to FIG. 9, in operation 905, the electronic device (100) can identify whether the sub-battery (195) is connected. The fact that the sub-battery (195) is connected may mean that the sub-battery (195) is connected to a target device or target module to supply power. If the sub-battery (195) is identified as being connected to a target device or target module to supply power, the electronic device (100) can determine that the sub-battery (195) is connected.

[0183] When the sub-battery (195) is not connected (905-N), in operation 910, the electronic device (100) can set the control pin of the first discharge transistor and the control pin of the second discharge transistor to the first state.

[0184] In operation 915, the electronic device (100) can control the first discharge transistor and the second discharge transistor based on the control signal of the first state.

[0185] In operation 920, the electronic device (100) can turn off the first discharge transistor and the second discharge transistor based on the control signal of the first state.

[0186] At operation 925, the first discharge transistor and the second discharge transistor are turned off, so that the electronic device (100) can cut off the power supply of the sub-battery (195).

[0187] When the sub-battery (195) is engaged (905-Y), in operation 930, the electronic device (100) can set the control pin of the first discharge transistor and the control pin of the second discharge transistor to the second state.

[0188] In operation 935, the electronic device (100) can control the first discharge transistor and the second discharge transistor based on the control signal of the second state.

[0189] In operation 940, the electronic device (100) can turn on the first discharge transistor and the second discharge transistor based on the control signal of the second state.

[0190] In operation 945, the first discharge transistor and the second discharge transistor are turned on, so that the electronic device (100) can supply power to the sub-battery (195). The electronic device (100) can supply power from the sub-battery (195) to a connected target device or target module.

[0191] In one embodiment, the first state may be a pull-up state (or high state) and the second state may be a pull-down state (or low state).

[0192] In one embodiment, the first state may be a pull-down state (or low state) and the second state may be a pull-up state (or high state).

[0193] For example, the first state or the second state may be a preset setting. The first state or the second state may be changed based on the user's settings or circuit structure.

[0194] FIG. 10 is a diagram for explaining the output voltage depending on whether the sub-battery (195) is connected or not, according to one embodiment.

[0195] Table (1010) of Fig. 10 can represent the output voltage of the sub protection circuit module (196) over time in a situation where the sub battery (195) is not connected.

[0196] It is assumed that an event for turning off the discharge transistor included in the sub-protection circuit module (196) occurs at a first time point (t1) while the sub-battery (195) is not connected. The electronic device (100) can turn off the discharge transistor included in the sub-protection circuit module (196) at the first time point (t1). For example, the discharge transistor of the sub-protection circuit module (196) can include a first discharge transistor and a second discharge transistor.

[0197] When the first discharge transistor and the second discharge transistor are turned off, the output voltage of the sub-protection circuit module (196) may change from V1 to V2. V1 and V2 may vary depending on the battery type or circuit design. For example, V2 may be 0.

[0198] Table (1020) of FIG. 10 can show the output voltage of the sub protection circuit module (196) over time in relation to whether the sub battery (195) is connected.

[0199] It is assumed that an event for turning off the discharge transistor included in the sub-protection circuit module (196) occurs at a first time point (t1) while the sub-battery (195) is not connected. The electronic device (100) can turn off the discharge transistor included in the sub-protection circuit module (196) at the first time point (t1). For example, the discharge transistor of the sub-protection circuit module (196) can include a first discharge transistor and a second discharge transistor.

[0200] At a second time point (t2), a sub-battery (195) may be connected to a target device or target module. With the sub-battery (195) connected, the electronic device (100) may turn on a discharge transistor included in a sub-protection circuit module (196) at a second time point (t2).

[0201] When the first discharge transistor and the second discharge transistor are turned on, the output voltage of the sub-protection circuit module (196) can change from V2 to V1. When the sub-battery (195) is connected, the output voltage can be lowered when the sub-battery (195) supplies power to the target device or target module. Between the second time point (t2) and the third time point (t3), the sub-battery (195) can supply power to the target device or target module.

[0202] It is assumed that the sub-battery (195) is not connected to the target device or target module at the third time point (t3). The electronic device (100) can determine whether to perform an over-discharge protection mode if the target device or target module is not connected to the sub-battery (195).

[0203] It is assumed that an event for turning off the discharge transistor included in the sub-protection circuit module (196) occurs at a third time point (t3). The electronic device (100) can turn off the discharge transistor included in the sub-protection circuit module (196) at the third time point (t3). When the first discharge transistor and the second discharge transistor are turned off, the output voltage of the sub-protection circuit module (196) can be changed to V2.

[0204] FIG. 11 is a drawing for explaining the standby period in over-discharge prevention mode according to one embodiment.

[0205] Table (1100) of FIG. 11 may be a table comparing the idle period for a sub-protection circuit module (196) that does not couple a switch to a discharge transistor and the idle period for a sub-protection circuit module (196) that couples a switch to a discharge transistor.

[0206] Incorporating a switch into the discharge transistor can increase the standby period. Implementing a sub-protection circuit module (196) by connecting a switch into the discharge transistor can prevent damage caused by discharge for a longer period.

[0207] FIG. 12 is a drawing for explaining the structure of a power supply unit (190) according to one embodiment.

[0208] Referring to FIG. 12, the electronic device (100) may include at least one processor (110), a power supply (190), and a connection board (198).

[0209] At least one processor (110) may include a control processor (191).

[0210] The power supply unit (190) may include a main power supply unit (190-1) and a sub power supply unit (190-2).

[0211] For example, the main power supply (190-1) may include a control processor (191), a power management integrated circuit (192), a main battery (193), a main protection circuit module (194), and / or a current limiter (197).

[0212] For example, the sub-power supply unit (190-2) may include at least one of a sub-battery (195) or a sub-protection circuit module (196).

[0213] Descriptions for each configuration can correspond to Fig. 6. Duplicate descriptions are omitted.

[0214] While operating in over-discharge protection mode, the electronic device (100) can separate the main battery voltage (Vmain) and the system voltage (Vsys) provided by the main power supply (190-1) by turning off the operation of the power management integrated circuit (192).

[0215] While operating in over-discharge protection mode, the electronic device (100) can separate the sub-battery voltage (Vsub) and the system voltage (Vsys) provided by the sub-power supply unit (190-2) by controlling the current limiter (197).

[0216] The main battery voltage (Vmain) may be the voltage between the node connected to the first terminal (a) of the first resistor (R1) and the short-circuit node.

[0217] The sub-battery voltage (Vsub) may be the voltage between the node connected to the first terminal (a) of the second resistor (R2) and the short-circuit node.

[0218] The system voltage (Vsys) may be the voltage between the node connected to the second stage (b) of the power management integrated circuit (192) and the first stage (a) of the current limiter (197) and the short-circuit node.

[0219] The fourth stage (d) of the power management integrated circuit (192) can be connected to a charging terminal. The charging voltage (Vbus) can be supplied to the power supply (190) through the power management integrated circuit (192).

[0220] The sub protection circuit module (196) can be coupled to a target device or target module via the P+ terminal, the cnt terminal, and the P- terminal. The sub protection circuit module (196) can supply power from the sub battery (195) to the target device or target module via the P+ terminal, the cnt terminal, and the P- terminal.

[0221] The first stage (a) of the control processor (191) can be connected to the second stage (b) of the connection board (198) via the second line (L2).

[0222] The second stage (b) of the control processor (191) can be connected to the second stage (b) of the first stage (a) current limiter (197) of the power management integrated circuit (192) via the first line (L1).

[0223] The second stage (b) of the power management integrated circuit (192) can be connected to the first stage (a) of the current limiter (197). The second stage (b) of the power management integrated circuit (192) and the first stage (a) of the current limiter (197) can be connected to the system.

[0224] The third terminal (c) of the current limiter (197) can be connected to the first terminal (a) of the second resistor (R2).

[0225] The second terminal (b) of the second resistor (R2) can be connected to the first terminal (a) of the connecting board (198).

[0226] The third terminal (c) of the connection board (198) can be connected to the first terminal (a) of the third resistor (R3), the first terminal (a) of the first switch (12), and the first terminal (a) of the second switch (22) via the third line (L3).

[0227] The fourth terminal (d) of the connection board (198) can be connected to the positive terminal (B+, a) of the sub-battery (195) and the second terminal (b) of the third resistor (R3).

[0228] The negative terminal (B-, b) of the sub-battery (195) can be connected to the first terminal (a) of the first discharge transistor (11).

[0229] The second terminal (b) of the first discharge transistor (11) can be connected to the second terminal (b) of the first switch (12).

[0230] The third stage (c) of the first discharge transistor (11) can be connected to the first stage (a) of the first protection integrated circuit (13).

[0231] The third terminal (c) of the first discharge transistor (11) can be connected to the first terminal (a) of the first charge transistor (14).

[0232] The second stage (b) of the first charging transistor (14) can be connected to the second stage (b) of the first protection integrated circuit (13).

[0233] The third terminal (c) of the first charging transistor (14) can be connected to the first terminal (a) of the second discharging transistor (21).

[0234] The second terminal (b) of the second discharge transistor (21) can be connected to the second terminal (b) of the second switch (22).

[0235] The third stage (c) of the second switch (22) can be connected to the first stage (a) of the second protection integrated circuit (23).

[0236] The third terminal (c) of the second discharge transistor (21) can be connected to the first terminal (a) of the second charge transistor (24).

[0237] The second stage (b) of the second charging transistor (24) can be connected to the second stage (b) of the second protection integrated circuit (23).

[0238] The third stage (c) of the second charging transistor (24) may be short-circuited.

[0239] The third terminal (c) of the power management integrated circuit (192) can be connected to the first terminal (a) of the first resistor (R1).

[0240] The second terminal (b) of the first resistor (R1) can be connected to the positive terminal (a) of the main battery (193).

[0241] The negative terminal (b) of the main battery (193) can be connected to the first terminal (a) of the third discharge transistor (31).

[0242] The second stage (b) of the third discharge transistor (31) can be connected to the first stage (a) of the third protection integrated circuit (33).

[0243] The third terminal (c) of the third discharge transistor (31) can be connected to the first terminal (a) of the third charge transistor (34).

[0244] The second stage (b) of the third charging transistor (34) can be connected to the second stage (b) of the third protection integrated circuit (33).

[0245] The third terminal (c) of the third charging transistor (34) can be connected to the first terminal (a) of the fourth discharging transistor (41).

[0246] The second stage (b) of the fourth discharge transistor (41) can be connected to the first stage (a) of the fourth protection integrated circuit (43).

[0247] The third terminal (c) of the fourth discharge transistor (41) can be connected to the first terminal (a) of the fourth charge transistor (44).

[0248] The second stage (b) of the fourth charging transistor (44) can be connected to the second stage (b) of the fourth protection integrated circuit (43).

[0249] The third stage (c) of the fourth charging transistor (44) may be short-circuited.

[0250] For example, the first line (L1), the second line (L2), and the third line (L3) may be communication lines.

[0251] The control processor (191) can generate a control signal for controlling the first discharge transistor (11) and the second discharge transistor (21). The control processor (191) can transmit the control signal to the connection substrate (198) through the second line (L2).

[0252] The connection board (198) can transmit a control signal to the first switch (12) and the second switch (22) via the third line (L3).

[0253] The first switch (12) can transmit a control signal to the first discharge transistor (11) through a communication line.

[0254] The second switch (13) can transmit a control signal to the second discharge transistor (21) through a communication line.

[0255] Figure 13 is a drawing for explaining the input / output values ​​of the control processor (191).

[0256] Referring to FIG. 13, the electronic device (100) describes the power management integrated circuit (192) of FIG. 6 and FIG. 12 as a first power management integrated circuit (192). The power management integrated circuit (192) may be described as an interface power management integrated circuit (IF PMIC).

[0257] According to one embodiment, the electronic device (100) may additionally include a second power integrated management circuit (199).

[0258] The second power integrated management circuit (199) can control and manage the input / output voltage of the control processor (191). The second power integrated management circuit (199) can be connected to the first power integrated management circuit (192) and the current limiter (197).

[0259] For example, the second power management integrated circuit (199) may be described as an application power management integrated circuit (AP PMIC).

[0260] The second power integrated management circuit (199) can be connected to the system through the first terminal (a). The second power integrated management circuit (199) can be supplied with the system voltage (Vsys) through the first terminal (a).

[0261] The second terminal (b) of the second power integrated management circuit (199) can be connected to the fifth terminal (e) of the first power integrated management circuit (192).

[0262] A first terminal (a) of the first power management integrated circuit (192) can be connected to a second terminal (b) of the control processor (191).

[0263] The third terminal (c) of the second power integrated management circuit (199) can be connected to the fourth terminal (d) of the current limiter (197).

[0264] The voltage of the node connected to the second terminal (b) of the second power integrated management circuit (199) may be the input / output voltage (VIO) of the control processor (191).

[0265] The voltage of the node connected to the third terminal (c) of the second power integrated management circuit (199) may be the input / output voltage (VIO) of the control processor (191).

[0266] The input / output voltage (VIO) of the control processor (191) described in operation 840 of FIG. 8 may be the voltage of the node connected to the second terminal (b) of the second power integrated management circuit (199) or the voltage of the node connected to the third terminal (c) of the second power integrated management circuit (199).

[0267] For example, the input / output voltage (VIO) of the control processor (191) may be described as a digital block power supply.

[0268] The electronic device (100) can check the power on / off status of a target device or target module (e.g., a set device) to be supplied with power based on the input / output voltage (VIO) of the control processor (191). It may be difficult to check the power on / off status of the target device or target module due to the supply of the battery voltage with the system voltage (Vsys). If the input / output voltage (VIO) of the control processor (191), not the system voltage (Vsys), is equal to or lower than the third threshold value, the electronic device (100) can perform an over-discharge protection mode.

[0269] FIG. 14 is a drawing for explaining a state in which the first discharge transistor (11) and the second discharge transistor (21) are turned on, according to one embodiment.

[0270] Referring to Fig. 14, the first discharge transistor (11) and the second discharge transistor (21) may be turned on when the power of the power supply (190) is cut off.

[0271] Power may be supplied from the sub-power supply (190-2) to the current limiter (197), but power may not be supplied from the current limiter (197) to the internal system of the electronic device (100).

[0272] Power may be supplied from the main power supply (190-1) to the power management integrated circuit (192), but power may not be supplied from the power management integrated circuit (192) to the internal system of the electronic device (100).

[0273] FIG. 15 is a drawing for explaining a state in which the first discharge transistor (11) and the second discharge transistor (21) are turned off, according to one embodiment.

[0274] Referring to Fig. 15, the first discharge transistor (11) and the second discharge transistor (21) may be turned off when the power of the power supply (190) is cut off.

[0275] When the first discharge transistor (11) is off, current may not flow or power may not be supplied through the first discharge transistor (11).

[0276] When the second discharge transistor (21) is off, current may not flow or power may not be supplied through the second discharge transistor (21).

[0277] Power supplied from the sub-battery (195) can be supplied from the second charging transistor (24) to the second discharging transistor (21), but cannot be supplied from the second discharging transistor (21) to the first charging transistor (14) and the first discharging transistor (11).

[0278] Unlike Fig. 13, in Fig. 14, no leakage current may flow or the leakage current value may decrease. If the leakage current value decreases, the time required for overdischarge may increase. If the time required for overdischarge increases, the probability of preventing damage to the sub-protection circuit module (196) may increase.

[0279] Figure 16 is a drawing for explaining the operation of the control processor (191) controlling the first protection integrated circuit (13) and the second protection integrated circuit (23).

[0280] The components of Fig. 16 may correspond to the components of Fig. 12. Duplicate descriptions are omitted.

[0281] Fig. 16 shows that, unlike Fig. 12, the sub-power supply unit (190-2) may not include the first switch (12) and the second switch (22). The first protection integrated circuit (13) and the second protection integrated circuit (23) may each include the third stage (c).

[0282] FIG. 12 may represent a protection circuit module including at least one switch to control a DFET (11, 21).

[0283] Figure 16 illustrates an embodiment in which the DFET (11, 21) is controlled directly from a protection integrated circuit (13, 23) instead of a switch.

[0284] When controlling the DFET (11, 21) with the protection integrated circuit (13, 23), the CFET (14, 24) can be controlled simultaneously in addition to the DFET (11, 21). Controlling the CFET (14, 24) may include an operation of switching the CFET (14, 24) to an on state or an off state.

[0285] When controlling the DFET (11, 21) with a protection integrated circuit (13, 23), the blocking operation in the protection integrated circuit (13, 23) and the discharge blocking operation described in the present disclosure can be performed dependently.

[0286] The embodiment of Fig. 12 can perform a discharge blocking operation separately from the blocking operation of the protection integrated circuit (13, 23).

[0287] The first switch (12) and the second switch (22) of Fig. 12 can be used to control the on / off operation of the DFET (11, 21).

[0288] For example, the first switch (12) and the second switch (22) may include an Nch single FET or a Pch single FET.

[0289] For example, the first switch (12) and the second switch (22) may include a control terminal (or control element).

[0290] The electronic device (100) can cut off the power supply of the sub-battery (195) by opening the control terminals included in the first switch (12) and the second switch (22).

[0291] The electronic device (100) may not cut off the power supply of the sub-battery (195) by closing the control terminals included in the first switch (12) and the second switch (22).

[0292] For example, in an Nch FET switch, the control terminal can be closed in the high state.

[0293] For example, in a Pch FET switch, the control terminal can be closed at 0 V.

[0294] The third terminal (c) of the connection board (198) can be connected to the first terminal (a) of the third resistor (R3), the third terminal (c) of the first protection integrated circuit (13), and the third terminal (c) of the second protection integrated circuit (23).

[0295] The second stage (b) of the first discharge transistor (11) can be connected to the first stage (a) of the first protection integrated circuit (13).

[0296] The second terminal (b) of the second discharge transistor (21) can be connected to the first terminal (a) of the second protection integrated circuit (23).

[0297] The control processor (191) can generate a control signal for controlling the first discharge transistor (11) and the second discharge transistor (21). The control processor (191) can transmit the control signal to the power management integrated circuit (192) through the first line (L1).

[0298] The power management integrated circuit (192) can transmit a control signal to the connection board (198) via the second line (L2).

[0299] The connection board (198) can transmit a control signal to the first protection integrated circuit (13) and the second protection integrated circuit (23) via the third line (L3).

[0300] The first protection integrated circuit (13) can transmit a control signal to the first discharge transistor (11) through a communication line.

[0301] The second protection integrated circuit (23) can transmit a signal to the second discharge transistor (21) through a communication line.

[0302] Figure 17 can explain the operation of transmitting a control signal through a power management integrated circuit (192).

[0303] Referring to FIG. 17, unlike FIG. 12, the control processor (191) may not be connected to the second line (L2). The control processor (191) may be connected to the power management integrated circuit (192) via the first line (L1).

[0304] The fifth terminal (e) of the power management integrated circuit (192) can be connected to the second terminal (b) of the connection board (198) via the second line (L2).

[0305] The control processor (191) can generate a control signal for controlling the first discharge transistor (11) and the second discharge transistor (21). The control processor (191) can transmit the control signal to the power management integrated circuit (192) through the first line (L1).

[0306] The power management integrated circuit (192) can transmit a control signal to the connection board (198) via the second line (L2).

[0307] The connection board (198) can transmit a control signal to the first switch (12) and the second switch (22) via the third line (L3).

[0308] The first switch (12) can transmit a control signal to the first discharge transistor (11) through a communication line.

[0309] The second switch (13) can transmit a control signal to the second discharge transistor (21) through a communication line.

[0310] According to one embodiment, the electronic device (100) includes a memory (120) for storing instructions, a power supply (190) including a main power supply (190-1) and a sub-power supply (190-2), and at least one processor (110) including processing circuitry, and when the instructions are individually or collectively executed by the at least one processor (110), when a set event is identified, it is identified whether the main battery voltage of the main power supply (190-1) is below a first threshold value, and if the main battery voltage is below the first threshold value, it is identified whether the sub-battery voltage of the sub-power supply (190-2) is below a second threshold value, and if the sub-battery voltage is below the second threshold value, it generates a control signal for turning off at least one discharge transistor (11, 21) included in the sub-power supply (190-2), and transmits the control signal to at least one switch (12, 19) connected to at least one discharge transistor (11, 21). By transmitting to at least one discharge transistor (11, 21) based on 22), the over-discharge protection mode can be executed by turning off at least one discharge transistor (11, 21).

[0311] According to one embodiment, the sub-power supply unit (190-2) includes a sub-battery (195) and a sub-protection circuit module (196), and the sub-protection circuit module (196) includes a first protection circuit module (10) including a first discharge transistor (11), a first switch (12), and a first protection integrated circuit (13), and when instructions are individually or collectively executed by at least one processor (110), a control signal can be transmitted to the first discharge transistor (11) via the first switch (12).

[0312] According to one embodiment, the sub-protection circuit module (196) includes a second protection circuit module (20) including a second discharge transistor (21), a second switch (22) and a second protection integrated circuit (23), and instructions, when individually or collectively executed by at least one processor (110), can transmit a control signal to the second discharge transistor (21) via the second switch (22).

[0313] According to one embodiment, the first protection circuit module (10) may include a first dual transistor including a first discharge transistor (11) and a first charge transistor (14), and the second protection circuit module (20) may include a second dual transistor including a second discharge transistor (21) and a second charge transistor (24).

[0314] According to one embodiment, an electronic device wherein a first protection integrated circuit (13) is connected to a first switch (12) and a first charging transistor (14), and a second protection integrated circuit (23) is connected to a second switch (22) and a second charging transistor (24).

[0315] According to one embodiment, an electronic device includes a connection board (198), at least one processor includes a control processor (191), and the connection board (198) is connected to the control processor (191) and the sub-battery (195).

[0316] According to one embodiment, the instructions, when individually or collectively executed by at least one processor (110), may transmit a control signal from the control processor (191) to the connection board (198), transmit the control signal from the connection board (198) to the first switch (12) and the second switch (22), transmit the control signal from the first switch (12) to the first discharge transistor (11), and transmit the control signal from the second switch (22) to the second discharge transistor (21).

[0317] According to one embodiment, the main power supply (190-1) includes a control processor (191), a power management integrated circuit (192), a main battery (193), a main protection circuit module (194), and a current limiter (197), wherein the control processor (191) is connected to the power management integrated circuit (192) and the current limiter (197), the power management integrated circuit (192) is connected to the main battery (193), the main battery (193) is connected to the main protection circuit module (194), and the current limiter (197) is connected to a connection board (198).

[0318] According to one embodiment, the instructions, when individually or collectively executed by at least one processor (110), may generate a control signal if the main battery voltage is below a first threshold and the sub-battery voltage is below a second threshold while a target device connected to the sub-battery (195) is not identified.

[0319] According to one embodiment, the control signal can be in a pull-up state or a high state.

[0320] According to one embodiment, a portable battery device (200) includes a memory (120) for storing instructions, a power supply (190) including a main power supply (190-1) and a sub-power supply (190-2), and at least one processor (110) including processing circuitry, and when the instructions are individually or collectively executed by the at least one processor (110), when a set event is identified, identifying whether a main battery voltage of the main power supply (190-1) is below a first threshold value, and if the main battery voltage is below the first threshold value, identifying whether a sub-battery voltage of the sub-power supply (190-2) is below a second threshold value, and if the sub-battery voltage is below the second threshold value, generating a control signal for turning off at least one discharge transistor (11, 21) included in the sub-power supply (190-2), and transmitting the control signal to at least one switch (12, 12) connected to at least one discharge transistor (11, 21). By transmitting to at least one discharge transistor (11, 21) based on 22), the over-discharge protection mode can be executed by turning off at least one discharge transistor (11, 21).

[0321] According to one embodiment, the sub-power supply unit (190-2) includes a sub-battery (195) and a sub-protection circuit module (196), and the sub-protection circuit module (196) includes a first protection circuit module (10) including a first discharge transistor (11), a first switch (12), and a first protection integrated circuit (13), and when instructions are individually or collectively executed by at least one processor (110), a control signal can be transmitted to the first discharge transistor (11) via the first switch (12).

[0322] According to one embodiment, the sub-protection circuit module (196) includes a second protection circuit module (20) including a second discharge transistor (21), a second switch (22) and a second protection integrated circuit (23), and instructions, when individually or collectively executed by at least one processor (110), can transmit a control signal to the second discharge transistor (21) via the second switch (22).

[0323] According to one embodiment, the first protection circuit module (10) may include a first dual transistor including a first discharge transistor (11) and a first charge transistor (14), and the second protection circuit module (20) may include a second dual transistor including a second discharge transistor (21) and a second charge transistor (24).

[0324] According to one embodiment, a portable battery device, wherein a first protection integrated circuit (13) is connected to a first switch (12) and a first charging transistor (14), and a second protection integrated circuit (23) is connected to a second switch (22) and a second charging transistor (24).

[0325] According to one embodiment, a portable battery device (200) includes a connection board (198), at least one processor includes a control processor (191), and the connection board (198) is connected to the control processor (191) and the sub-battery (195).

[0326] According to one embodiment, the instructions, when individually or collectively executed by at least one processor (110), may transmit a control signal from the control processor (191) to the connection board (198), transmit the control signal from the connection board (198) to the first switch (12) and the second switch (22), transmit the control signal from the first switch (12) to the first discharge transistor (11), and transmit the control signal from the second switch (22) to the second discharge transistor (21).

[0327] According to one embodiment, a portable battery device, wherein the main power supply (190-1) includes a control processor (191), a power management integrated circuit (192), a main battery (193), a main protection circuit module (194), and a current limiter (197), wherein the control processor (191) is connected to the power management integrated circuit (192) and the current limiter (197), the power management integrated circuit (192) is connected to the main battery (193), the main battery (193) is connected to the main protection circuit module (194), and the current limiter (197) is connected to a connection board (198).

[0328] According to one embodiment, the instructions, when individually or collectively executed by at least one processor (110), may generate a control signal if the main battery voltage is below a first threshold and the sub-battery voltage is below a second threshold while a target device connected to the sub-battery (195) is not identified.

[0329] According to one embodiment, the control signal can be in a pull-up state or a high state.

[0330] The methods according to the various embodiments of the present disclosure described above can be implemented in the form of applications that can be installed on existing electronic devices.

[0331] The methods according to the various embodiments of the present disclosure described above can be implemented only with a software upgrade or a hardware upgrade for an existing electronic device.

[0332] The various embodiments of the present disclosure described above may also be performed through an embedded server provided in an electronic device, or an external server of at least one of the electronic device and the display device.

[0333] According to an example embodiment of the present disclosure, the various embodiments described above may be implemented as software including instructions stored in a machine-readable storage medium that can be read by a machine (e.g., a computer). The device may include an electronic device according to the disclosed embodiments, which is a device that can call instructions stored in the storage medium and operate according to the called instructions. When the instructions are executed by a processor, the processor may directly or under the control of the processor use other components to perform a function corresponding to the instructions. The instructions may include code generated or executed by a compiler or interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' means that the storage medium does not contain signals and is tangible, but does not distinguish between whether data is stored semi-permanently or temporarily in the storage medium.

[0334] According to one embodiment of the present disclosure, the method according to the various embodiments described above may be provided as included in a computer program product. The computer program product may be traded as a commodity 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 online through an application store. In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

[0335] Each of the components (e.g., modules or programs) according to the various embodiments described above may be composed of a single or multiple entities, and some of the sub-components described above may be omitted, or other sub-components may be further included in various embodiments. Alternatively or additionally, some components (e.g., modules or programs) may be integrated into a single entity, which may perform the same or similar functions as those performed by each of the respective components prior to integration. Operations performed by modules, programs or other components according to various embodiments may be executed sequentially, in parallel, iteratively or heuristically, or at least some operations may be executed in a different order, omitted, or other operations may be added.

[0336] Although the preferred embodiments of the present disclosure have been illustrated and described above, the present disclosure is not limited to the specific embodiments described above, and various modifications may be made by a person having ordinary skill in the art to which the present disclosure pertains without departing from the scope of the present disclosure as claimed in the claims, and such modifications should not be understood individually from the technical idea of ​​the present disclosure.

Claims

1. In an electronic device (100), Memory (120) for storing instructions; A power supply unit (190) including a main power supply unit (190-1) and a sub power supply unit (190-2); and At least one processor (110) comprising processing circuitry; The above instructions, when individually or collectively executed by the at least one processor (110), When a set event is identified, it is identified whether the main battery voltage of the main power supply (190-1) is below the first threshold value, If the main battery voltage is lower than the first threshold value, it is determined whether the sub-battery voltage of the sub-power supply unit (190-2) is lower than the second threshold value, If the sub-battery voltage is lower than the second threshold value, a control signal is generated to turn off at least one discharge transistor (11, 21) included in the sub-power supply unit (190-2), An electronic device that executes an over-discharge protection mode by turning off the at least one discharge transistor (11, 21) by transmitting the control signal to the at least one discharge transistor (11, 21) based on at least one switch (12, 22) connected to the at least one discharge transistor (11, 21).

2. In paragraph 1, The above sub-power supply unit (190-2) is Includes a sub-battery (195) and a sub-protection circuit module (196), The above sub-protection circuit module (196) is A first protection circuit module (10) including a first discharge transistor (11), a first switch (12) and a first protection integrated circuit (13), The above instructions, when individually or collectively executed by the at least one processor (110), An electronic device that transmits the control signal to the first discharge transistor (11) through the first switch (12).

3. In paragraph 2, The above sub-protection circuit module (196) is A second protection circuit module (20) including a second discharge transistor (21), a second switch (22) and a second protection integrated circuit (23), The above instructions, when individually or collectively executed by the at least one processor (110), An electronic device that transmits the control signal to the second discharge transistor (21) through the second switch (22).

4. In paragraph 3, The above first protection circuit module (10) is A first dual transistor including the first discharge transistor (11) and the first charge transistor (14), The above second protection circuit module (20) is An electronic device comprising a second dual transistor including the second discharge transistor (21) and the second charge transistor (24).

5. In paragraph 4, The above first protection integrated circuit (13) is connected to the first switch (12) and the first charging transistor (14), An electronic device, wherein the second protection integrated circuit (23) is connected to the second switch (22) and the second charging transistor (24).

6. In paragraph 3, The above electronic device, Includes a connecting board (198), At least one processor, Includes a control processor (191), The above connecting substrate (198) is An electronic device connected to the above control processor (191) and the above sub-battery (195).

7. In paragraph 6, The above instructions, when individually or collectively executed by the at least one processor (110), Transmitting the above control signal from the control processor (191) to the connection board (198), The above control signal is transmitted from the connection board (198) to the first switch (12) and the second switch (22), The above control signal is transmitted from the first switch (12) to the first discharge transistor (11), An electronic device that transmits the control signal from the second switch (22) to the second discharge transistor (21).

8. In paragraph 7, The above main power supply (190-1) is It includes the above control processor (191), power management integrated circuit (192), main battery (193), main protection circuit module (194), and current limiter (197). The above control processor (191) Connected to the power management integrated circuit (192) and the current limiter (197), The above power management integrated circuit (192) Connected to the above main battery (193), The above main battery (193) is connected to the above main protection circuit module (194), The above current limiter (197) is an electronic device connected to the above connection board (198).

9. In paragraph 2, The above instructions, when individually or collectively executed by the at least one processor (110), An electronic device that generates the control signal when the main battery voltage is below the first threshold value and the sub-battery voltage is below the second threshold value while the target device connected to the sub-battery (195) is not identified.

10. In paragraph 9, The above control signal is, An electronic device that is in a pull-up state or high state.

11. In a portable battery device (200), Memory (120) for storing instructions; A power supply unit (190) including a main power supply unit (190-1) and a sub power supply unit (190-2); and At least one processor (110) comprising processing circuitry; The above instructions, when individually or collectively executed by the at least one processor (110), When a set event is identified, it is identified whether the main battery voltage of the main power supply (190-1) is below the first threshold value, If the main battery voltage is lower than the first threshold value, it is determined whether the sub-battery voltage of the sub-power supply unit (190-2) is lower than the second threshold value, If the sub-battery voltage is lower than the second threshold value, a control signal is generated to turn off at least one discharge transistor (11, 21) included in the sub-power supply unit (190-2), A portable battery device that executes an over-discharge protection mode by turning off the at least one discharge transistor (11, 21) by transmitting the control signal to the at least one discharge transistor (11, 21) based on at least one switch (12, 22) connected to the at least one discharge transistor (11, 21).

12. In paragraph 11, The above sub-power supply unit (190-2) is Includes a sub-battery (195) and a sub-protection circuit module (196), The above sub-protection circuit module (196) is A first protection circuit module (10) including a first discharge transistor (11), a first switch (12) and a first protection integrated circuit (13), The above instructions, when individually or collectively executed by the at least one processor (110), A portable battery device that transmits the control signal to the first discharge transistor (11) through the first switch (12).

13. In paragraph 12, The above sub-protection circuit module (196) is A second protection circuit module (20) including a second discharge transistor (21), a second switch (22) and a second protection integrated circuit (23), The above instructions, when individually or collectively executed by the at least one processor (110), A portable battery device that transmits the control signal to the second discharge transistor (21) through the second switch (22).

14. In paragraph 13, The above first protection circuit module (10) is A first dual transistor including the first discharge transistor (11) and the first charge transistor (14), The above second protection circuit module (20) is A portable battery device comprising a second dual transistor including the second discharge transistor (21) and the second charge transistor (24).

15. In paragraph 14, The above first protection integrated circuit (13) is connected to the first switch (12) and the first charging transistor (14), A portable battery device, wherein the second protection integrated circuit (23) is connected to the second switch (22) and the second charging transistor (24).

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