WO2024061191A1

WO2024061191A1 - Electronic device

Info

Publication number: WO2024061191A1
Application number: PCT/CN2023/119605
Authority: WO
Inventors: 徐超; 魏华兵
Original assignee: 维沃移动通信有限公司
Priority date: 2022-09-23
Filing date: 2023-09-19
Publication date: 2024-03-28
Also published as: CN115425716A

Abstract

The present application belongs to the technical field of electronic apparatuses. Disclosed is an electronic apparatus. The electronic apparatus comprises a voltameter unit, a reset unit, a level conversion unit, a battery, a power management unit and an electric device. A first end of the voltameter unit is connected to the battery, a second end of the voltameter unit is connected to the electric device, a third end of the voltameter unit is connected to a first end of the reset unit, a second end of the reset unit is connected to a first end of the level conversion unit, a second end of the level conversion unit is respectively connected to a first end of a power key of the electronic apparatus and the power management unit of the electronic apparatus, and a second end of the power key is grounded, wherein the electric device comprises a controller.

Description

Electronic equipment

Cross-references to related applications

This application claims priority from Chinese Patent Application No. 202211170637.6 filed on September 23, 2022. The entire content of this Chinese patent application is incorporated herein by reference.

Technical field

This application belongs to the technical field of electronic equipment, and specifically relates to an electronic equipment.

Background technique

As the performance of electronic devices (such as mobile phones, etc.) is getting better and better, the replacement circumference of electronic devices is also gradually increasing. It takes longer and longer for products to be delivered from production to users. Power consumption may reach the forbidden charging voltage or lower voltage, affecting battery performance.

Contents of the invention

Embodiments of the present application provide an electronic device that can solve the problem of micro power consumption and impact on battery performance of electronic devices during long-term storage.

Embodiments of the present application provide an electronic device, including: a fuel gauge unit, a reset unit, a level conversion unit, a battery, a power management unit and a power device;

The first end of the fuel gauge unit is connected to the battery, the second end of the fuel gauge unit is connected to the electrical device, and the third end of the fuel gauge unit is connected to the first end of the reset unit. connection, the second end of the reset unit is connected to the first end of the level conversion unit, the second end of the level conversion unit is respectively connected to the first end of the power key of the electronic device and the power supply The management unit is connected, and the second end of the power key is connected to ground, wherein the electrical device includes a controller.

In the embodiment of the present application, the electronic device includes a fuel gauge unit, a reset unit, a level conversion unit, a battery, a power management unit and a power device. The first end of the fuel gauge unit is connected to the battery, and the second end of the fuel gauge unit is connected to the battery. Connected to the electrical device, the third end of the fuel gauge unit is connected to the first end of the reset unit, the second end of the reset unit is connected to the first end of the level conversion unit, and the second end of the level conversion unit is connected to the electronic device respectively. The first end of the power button of the device is connected to the power management unit, and the second end of the power button is connected to ground, where the power-consuming device includes a controller. In the embodiment of the present application, when the electronic device is not used for a long time, the battery can be disconnected from the power-consuming devices through the fuel gauge unit, thereby eliminating the leakage current of the battery back-end devices and the fuel gauge of the high-power-consuming devices on the battery. It puts the whole machine into a low power consumption state. When in use, you can press the power button to make the level conversion unit at a low level, and then through the reset unit, the fuel meter unit, the battery and the power-consuming devices are all connected, and the power-consuming devices are restored. Power supply avoids long-term micro-power consumption of power-consuming devices due to long-term non-use of electronic equipment, reduces battery loss and improves battery performance. At the same time, just press the power button to restore power to power-consuming devices, which is easy to operate. .

Description of the drawings

The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

Figure 1 is a structural block diagram of an electronic device provided by an embodiment of the present application;

Figure 2 is a detailed structural block diagram of an electronic device provided by an embodiment of the present application;

Figure 3 is a schematic circuit structure diagram of an electronic device provided by an embodiment of the present application;

Figure 4 is a detailed circuit structure schematic diagram of an electronic device provided by an embodiment of the present application;

Figure 5 is a schematic circuit structure diagram of another electronic device provided by an embodiment of the present application;

Figure 6 is a schematic diagram of the circuit structure of the fuel gauge in Figure 5.

In the figure, 100-fuel gauge unit, 200-level conversion unit, 300-battery, 400-power device, 500-power button, 600-power management unit, 700-reset unit, 800-protection unit.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that data so used are interchangeable under appropriate circumstances so that embodiments of the present application can be practiced in sequences other than those illustrated or described herein. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the related objects are in an "or" relationship.

In the following, in conjunction with Figures 1 to 6, an electronic device provided by an embodiment of the present application is described in detail through specific embodiments and application scenarios.

As shown in Figure 1, it is a structural block diagram of an electronic device. The electronic device may include a fuel gauge unit 100, a reset unit 700, a level conversion unit 200, a battery 300, a power management unit 600 and a powered device 400.

Among them, the first end of the fuel gauge unit 100 is connected to the battery 300, the second end of the fuel gauge unit 100 is connected to the electrical device 400, and the third end of the fuel gauge unit 100 is connected to the first terminal of the reset unit 700. The reset unit The second end of 700 is connected to the first end of the level conversion unit 200. The second end of the level conversion unit 200 is connected to the first end of the power key 500 and the power management unit 600 of the electronic device respectively. The third end of the power key 500 Both ends are grounded, and the electrical device 400 includes a controller.

When the electronic device is in the first state, the controller sends a first instruction to the fuel meter unit 100, and the fuel meter unit 100 disconnects the battery 300 from the electrical device 400 according to the first instruction; when the power button 500 receives the first operation, the level conversion unit 200 is at a low level, and the fuel meter unit 100 is connected to the battery 300 and the electrical device 400 through the reset unit 700, the electronic device is in the second state, and the electrical device 400 resumes power supply.

It is worth noting that the first state refers to the state in which the electronic device has not been used for a long time, such as the state during a period of time from the production of the electronic device to the time when the electronic device is used by the user, or it can also be the state in which the user does not use the electronic device for a long time. The state of electronic equipment after shutting it down. The second state refers to the state of the electronic device when the user uses the electronic device. It may be the state of the electronic device when the user operates the electronic device, or it may be the charging state of the electronic device.

The first instruction may be to instruct the electronic device to enter a low power consumption state. At this time, the power-consuming device 400 on the host side of the electronic device is in a power-off state. At the same time, the power-consuming devices such as the charging integrated circuit of the electronic device are also in a power-off state, so that the electronic device The overall power consumption is reduced to a lower level. The first operation may be a press operation, or a long press operation, etc. The long press operation refers to a press time exceeding a certain time, such as more than 1s, 2s, etc.

That is to say, when the electronic device has not been used for a long time, the first instruction can be sent to the fuel gauge unit 100 through the controller, so that the fuel gauge unit 100 disconnects the battery 300 from other components of the electronic device, thereby reducing the consumption of the electronic device. power consumption. When you need to use the electronic device, you only need to operate the power button 500 to activate the electronic device, so that the power components 400 of the electronic device return to normal operation.

In the embodiment of the present application, the electronic device includes a fuel gauge unit 100, a reset unit 700, a level conversion unit 200, a battery 300, a power management unit 600 and a power device 400. The first end of the fuel gauge unit 100 is connected to the battery 300. , the second terminal of the fuel gauge unit 100 is connected to the electrical device 400 , the third terminal of the fuel gauge unit 100 is connected to the first terminal of the reset unit 700 , the second terminal of the reset unit 700 is connected to the first terminal of the level conversion unit 200 The second end of the level conversion unit 200 is connected to the first end of the power key 500 and the power management unit 600 of the electronic device respectively, and the second end of the power key 500 is connected to ground, where the electrical device 400 includes a controller. In the embodiment of the present application, when the electronic device is not used for a long time, the battery 300 can be disconnected from each power-consuming electrical device 400 through the fuel gauge unit 100, thereby eliminating the problem of the battery back-end components and the fuel gauge of high-power-consuming devices on the battery. Leakage current causes the whole machine to enter a low power consumption state. When in use, the level conversion unit 200 can be at a low level by pressing the power button 500, and then the reset unit 700 can connect the fuel gauge unit 100 to the battery 300 and electrical devices. 400 are all turned on, and the power supply of the power-consuming device 400 is restored, which avoids the long-term micro-power consumption of the power-consuming device due to the electronic device not being used for a long time, reduces the loss of the battery 300, and improves the performance of the battery 300. At the same time, you only need to press the power Press key 500 to restore power to power-consuming devices, which is easy to operate.

It is worth noting that, as shown in Figure 2, the electronic device can be divided into a battery end and a host end. The battery end includes a battery 300, a protection integrated circuit (IC), a fuel gauge unit 100, a sampling unit and a reset unit 700. The host end includes Level conversion unit 200, and various electrical devices, such as audio unit, charging unit, radio frequency unit, controller (central processing unit CPU, image processor GPU, core), fingerprint unit, camera unit, backlight/ Flash and other units, motor units, screens, etc.

As shown in FIG. 3 , in a possible implementation of the present application, the reset unit 700 may include a reset chip and a first switch transistor.

Among them, the voltage input pin (Vin) of the reset chip is connected to the battery 300 , the voltage output pin (Vout) of the reset chip is connected to the electrical device 400 , and the reset pin (RST) of the reset chip is connected to the level conversion unit 200 The first end is connected, the enable pin (En) of the reset chip is connected to the controller, the output pin (SRO) of the reset chip is connected to the control end of the first switch Q1, and the first end of the first switch Q1 is connected to The battery 300 is connected, and the second end of the first switch Q1 is connected to the fuel gauge unit 100 .

Among them, there is a discharge path inside the reset chip, one end of the discharge path is connected to the Vout pin, and the other end of the discharge path is connected to ground. The voltage output pin (Vout) of the reset chip is connected to the electrical device 400, and is used to release the voltage inside the electrical device 400 when the electronic device is in the first state, that is, to release the voltage in the electrical device 400. The voltage in the capacitor is released through the discharge path connected to Vout to avoid damage to electrical components.

The second end of the first switch Q1 is connected to the fuel gauge unit 100 for activating the fuel gauge unit 100 .

It is worth noting that the first switch transistor Q1 can be a PMOS transistor (P-channel field effect transistor, Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET) or other transistors, and its role in this application is to conduct On or off function.

In the embodiment of the present application, the first switch Q1 is turned on through a level signal. When the reset pin RST of the reset chip inputs a low level, the first switch Q1 is turned on, thereby causing the fuel gauge unit 100 to communicate with the battery 300 and The electrical devices 400 are all turned on, and the power supply to the electrical devices 400 is restored.

Optionally, the reset unit 700 may further include: a first resistor R1; a first end of the first resistor R1 is connected to the battery 300, and a second end of the first resistor R1 is connected to the first end of the first switch Q1.

Among them, the function of the first resistor R1 is to protect the first switch Q1.

In a possible implementation of the present application, the level conversion unit 200 may include: a second resistor R2, a third resistor R3, and a first diode D1; the first end of the second resistor R2 is connected to the battery 300, and the first end of the second resistor R2 is connected to the battery 300. The second end of the second resistor R2 is connected to the reset pin RST of the reset chip, the first end of the third resistor R3 and the anode of the first diode D1 respectively. The cathode of the first diode D1 is connected to the cathode of the power button 500 respectively. The first terminal is connected to the power management unit 600 , and the second terminal of the third resistor R3 and the second terminal of the power key 500 are both grounded.

In the embodiment of the present application, a pull-up resistor R2 and a pull-down resistor R3 are used to realize that the level conversion unit 200 outputs high and low levels to the reset pin RST of the reset chip to control the on or off of the first switch tube Q1 in the reset chip, thereby controlling whether to supply power to the electrical device 400.

When the power button 500 of the electronic device receives the first operation, the reset pin RST is grounded, the first switch Q1 is turned on, the fuel gauge unit 100 receives the high-level signal of the battery 300, and the fuel gauge unit 100 communicates with the user. The electrical device 400 is electrically connected, and the battery 300 can provide power to the electrical device 400. At this time, the electronic device is in the second state.

In a possible implementation of the present application, the fuel gauge unit 100 may include: a first fuel gauge chip and a second switch transistor Q2; the signal input pin (IIC) of the first fuel gauge chip is connected to the controller, and the first fuel gauge chip is connected to the controller. The activation pin (Pack) of the fuel gauge chip is connected to the second terminal of the first switch tube Q1, the signal output pin (DSG) of the first fuel gauge chip is connected to the control terminal of the second switch tube Q2, and the second switch tube Q2 The first terminal of Q2 is connected to the battery 300 , and the second terminal of the second switching tube Q2 is connected to the electrical device 400 .

Among them, the fuel gauge unit 100 is also used to calculate the state of charge (SOC)/impedance/capacity/health status and other parameters of the battery cells of the battery 300, so as to detect the aging state of the battery cells.

It is worth mentioning that the second switch transistor Q2 can be an NMOS transistor (N-channel field effect transistor, Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET), or other transistors, and its role in this application is to conduct On or off function.

In the embodiment of the present application, the controller of the electronic device can control the fuel gauge unit 100 to enter a low power consumption state through the signal input pin IIC of the first fuel gauge chip, thereby reducing its own power consumption, and can also control to turn off the second switch. Q2, thereby turning off the power supply path of the charging integrated circuit and power-consuming devices, eliminating the power consumption of battery back-end devices and high-power-consuming devices on the battery, such as the fuel gauge unit 100. That is, when the electronic device is in the first state, the controller sends a first instruction to the signal input pin IIC, and the fuel meter unit 100 controls the second switch Q2 to close according to the first instruction, disconnecting the electrical device 400 electrical connection. After the user presses the power button 500, the level conversion unit 200 is grounded, the reset unit 700 receives the low level of the level conversion unit 200, controls the first switch Q1 to turn on, and the activation pin Pack of the fuel meter unit 100 receives The high-level signal exits the low-power state and activates the power-consuming device 400. The controller can send a high-level signal to the enable pin En of the reset unit 700 through the general input and output port GPIO, so that the first switch Q1 is turned off. At this time, the electronic device is in the second state.

The overall process based on the above structure is as follows:

The controller of the electronic device sends a first instruction to the fuel meter unit 100 through a serial bus (Inter-Integrated Circuit, IIC), which may be a shutdown instruction. After receiving the first instruction, the fuel meter unit 100 enters low power consumption. mode, and at the same time, the second switch Q2 is controlled to be closed, the power supply Vbat of the battery 300 to the electrical device 400 is 0, the power consumption of the electrical device 400 of the electronic device is cut, and the electronic device enters a low power consumption state; when the user presses the power button 500 (powerkey), the level conversion unit 200 is grounded to form a low level. The reset chip receives the low level and controls the first switch Q2 to turn on. The level of the battery 300 is directly given to the fuel gauge unit 100. The fuel gauge unit The activation pin Pack of 100 receives a high level signal, the electronic device is activated and exits from the low power consumption mode. The fuel gauge unit 100 controls the first switch Q1 to turn on, Vbat resumes output, and supplies power to the electrical device 400. The electronic device The device returns to the normal state, and then the controller sends a high-level signal to the enable pin En of the reset unit 700 through the general-purpose input and output port GPIO, causing the first switch Q1 to turn off.

As shown in Figure 4, in a possible implementation of the present application, the electronic device may also include: a protection unit 800; the first end of the protection unit 800 is connected to the battery 300, and the second end of the protection unit 800 is connected to the fuel gauge respectively. The unit 100 is connected to the electrical device 400 .

That is to say, the electronic device may also include a protection unit 800, which is composed of a first protection module, a second protection module and its peripheral devices fifth switching tube Q5, sixth switching tube Q6, seventh switching tube Q7 and The eighth switching tube Q8 is composed of, and cooperates with other units to realize overvoltage, undervoltage, external short circuit, overcurrent, overtemperature and other protection mechanisms and load detection functions. The protection module may be a protection chip.

Specifically, the first end of the first protection module and the first end of the second protection module are both connected to the positive electrode of the battery 300, and the second end of the first protection module is respectively connected to the control end of the seventh switch Q7 and the third end of the switch Q7. The control end of the eight switch tube Q8 is connected, the first end of the eighth switch tube Q8 is connected to the negative electrode of the battery 300, the second end of the eighth switch tube Q8 is connected to the first end of the seventh switch tube Q7, and the seventh switch tube Q8 The second end of Q7 is connected to the first end of the fifth switching transistor Q5. The second end of the second protection module is respectively connected to the control end of the fifth switching transistor Q5 and the control end of the sixth switching transistor Q6. The second end of the switching transistor Q5 is connected to the first end of the sixth switching transistor Q6, and the second end of the sixth switching transistor Q6 is connected to the fuel meter unit 100 and the electrical device 400 respectively.

Among them, the fifth switching tube Q5, the sixth switching tube Q6, the seventh switching tube Q7 and the eighth switching tube Q8 can all be NMOS tubes (N-channel field effect tubes, Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET ), it can also be other transistors, and its function in this application is to turn on or off.

In a possible implementation of the present application, the fuel gauge unit 100 includes a first sampling input terminal IN1 and a second sampling input terminal IN2; the electronic device further includes: a fourth resistor R4; the first end of the fourth resistor R4 is connected to The second end of the protection unit is connected to the first sampling input terminal IN1, and the second end of the fourth resistor R4 is connected to the second sampling input terminal IN2 and the electrical device 400 respectively.

In the embodiment of the present application, the function of the fourth resistor R4 is sampling, that is, the fuel meter unit 100 can use the fourth resistor R4 to perform sampling, and then monitor the cell condition of the battery 300 .

As shown in Figure 5, in a possible implementation of the present application, the second fuel gauge chip includes a fuel gauge unit 100 and a reset unit 700; the electronic device also includes a third switch transistor Q3; the second fuel gauge chip includes: signal Input pin (IIC), activation pin (Pack), signal output pin (OUT) and control pin (SHP); the fuel gauge unit 100 includes a signal input pin IIC, activation pin Pack and signal output pin OUT ; The reset unit 700 includes a control pin SHP; the signal input pin IIC is connected to the controller, that is, the GPIO pin of the electrical device 400, the activation pin Pack is connected to the electrical device 400, and the signal output pin OUT is connected to the third switch. The control end of the tube Q3 is connected, the control pin SHP is connected to the level conversion unit 200 , the first end of the third switch tube Q3 is connected to the battery 300 , and the second end of the third switch tube Q3 is connected to the electrical device 400 .

The fuel gauge in Figure 5 adds a control pin SHP and a power key 500 related circuit connected to the control pin SHP. Specifically, the circuit related to the power key connected to the control pin SHP is shown in Figure 6. In this embodiment, corresponding to the added control pin SHP inside the fuel gauge unit 100, an SHP module control logic part is added and a circuit structure connected between the control pin SHP and the SHP module control logic part.

Specifically, as shown in Figure 6, the fuel gauge unit 100 includes a processor microcontroller unit (MCU), memory, communication module, power supply module, system clock, composite analog-to-digital converter (ADC), coulomb counter, high-end The protection switch (N-MOS) drives the memory dump file (dump), SHP module control logic, fourth switch Q4 and other related circuits. Among them, the first end of the processor MCU is connected to the memory, communication module, power supply module, The system clock, composite ADC, coulomb counter, and high-end protection N-MOS driver dump are connected. The second end of the processor MCU is connected to the first end of the SHP module control logic. The second end of the SHP module control logic is connected to the fourth switch tube respectively. The first end of Q4 is connected to the reference voltage terminal Vref, and the second end of the fourth switch Q4 is connected to the control pin SHP. The functions of each module will not be described in detail in this application, and the actual application shall prevail.

It is worth noting that the third switching transistor Q3 can be an NMOS transistor (N-channel field effect transistor, Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET) or other transistors, and its role in this application is to conduct On or off function.

That is to say, in addition to the implementation of using the reset unit 700 to perform reset in the above embodiment, it is also possible to add a control pin SHP and related circuits to the fuel gauge chip without adding the reset unit 700 to implement the reset. The control pin SHP is triggered by a low level, which can wake up the electronic device.

In a possible implementation of the present application, the level conversion unit 200 includes: a second diode D2; the anode of the second diode D2 is connected to the control pin SHP, and the cathode of the second diode is connected to the power supply respectively. The management unit 600 is connected to the first end of the power key 500 .

When a control pin SHP is added to the second fuel gauge chip to implement reset, the level conversion unit 200 only needs a second diode D2, which outputs high and low levels through the power management unit 600. The control pin SHP of the second fuel gauge chip controls the on or off of the third switch Q3, thereby controlling whether to supply power to the electrical device 400.

In the embodiment of the present application, the controller on the host side of the electronic device can control the fuel gauge unit 100 to enter a low power consumption state through the signal input pin IIC of the second fuel gauge chip, thereby reducing its own power consumption and also controlling the shutdown of the second fuel gauge chip. The three-switch transistor Q3 then turns off the power supply path of the charging integrated circuit, etc., to avoid power consumption of the power supply path components. That is, when the electronic device is in the first state, the controller sends a first instruction to the signal input pin IIC, and the fuel gauge unit 100 controls the third switch Q3 to close according to the first instruction to disconnect the electrical device 400 electrical connection. After the user presses the power button 500 , the level conversion unit 200 is grounded, and the control pin SHP of the second fuel gauge chip receives a low-level signal, activating the second fuel gauge chip, exiting the low power consumption state, and activating the power device 400 , the controller can send a high-level signal to the control pin SHP of the reset unit 700 through the general-purpose input and output port GPIO, so that the third switch Q3 is turned off, and the electronic device is in the second state at this time. Or when the electronic device is connected to a charger, the voltage detected by the fuel gauge unit 100 is greater than the activation voltage. At this time, the second fuel gauge chip is activated, exits the low power consumption state, and activates the power device 400. The controller can A high-level signal is sent to the control pin SHP of the reset unit 700 through the general-purpose input and output port GPIO, so that the third switch Q3 is turned off. At this time, the electronic device is in the second state.

In a possible implementation of the present application, the electronic device may further include: a protection unit 800; a first end of the protection unit 800 is connected to the battery 300, and a second end of the protection unit 800 is connected to the fuel gauge unit 100 and the electrical device respectively. 400 connections.

The specific connection structure is shown in Figure 4, which has been described in detail in the above embodiment and will not be described again in this embodiment.

In a possible implementation of the present application, the power management unit 600 may include: a fifth resistor R5 and a third diode D3; the first end of the fifth resistor R5 is connected to the battery conversion voltage terminal VDD, the second end of the fifth resistor R5 is connected to the positive electrode of the third diode D3, and the negative electrode of the third diode D3 is respectively connected to the second end of the level conversion unit 200 and the first end of the power button 500.

When a control pin SHP is added to the fuel gauge chip to implement reset, the level conversion unit 200 only needs a second diode, which outputs high and low levels to the second power level through the power management unit 600 The control pin SHP of the chip is used to control the turn-on or turn-off of the third switch Q3, thereby controlling whether to supply power to the electrical device 400.

In this embodiment of the present application, in addition to the above-mentioned devices, the electronic device processing may also include a display screen, a camera module, etc., which will not be described in detail in this application. The electronic devices in this application can be full-screen mobile phones, tablet computers and other devices. Specific details will not be introduced in this application, and the actual situation shall prevail.

It should be noted that, in this document, the terms "comprising", "comprises" or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device that includes a series of elements not only includes those elements, It also includes other elements not expressly listed or inherent in the process, method, article or apparatus. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article or apparatus that includes that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions may be performed, for example, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence or that contributes to the existing technology. The computer software product is stored in a storage medium (such as ROM/RAM, disk, CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Inspired by this application, many forms can be made without departing from the purpose of this application and the scope protected by the claims, all of which fall within the protection of this application.

Claims

An electronic device, including: a fuel gauge unit, a reset unit, a level conversion unit, a battery, a power management unit and electrical devices;

The first end of the fuel gauge unit is connected to the battery, the second end of the fuel gauge unit is connected to the electrical device, and the third end of the fuel gauge unit is connected to the first end of the reset unit. connection, the second end of the reset unit is connected to the first end of the level conversion unit, the second end of the level conversion unit is respectively connected to the first end of the power key of the electronic device and the power supply The management unit is connected, and the second end of the power key is connected to ground, wherein the electrical device includes a controller.
The electronic device according to claim 1, wherein the reset unit includes a reset chip and a first switch tube;

The voltage input pin of the reset chip is connected to the battery, the voltage output pin of the reset chip is connected to the electrical device, and the reset pin of the reset chip is connected to the first pin of the level conversion unit. terminal is connected, the enable pin of the reset chip is connected to the controller, the output pin of the reset chip is connected to the control terminal of the first switch tube, and the first terminal of the first switch tube is connected to The battery is connected, and the second end of the first switch tube is connected to the fuel gauge unit.
The electronic device according to claim 2, wherein the reset unit further comprises: a first resistor;

The first end of the first resistor is connected to the battery, and the second end of the first resistor is connected to the first end of the first switch tube.
The electronic device according to claim 2, wherein the level conversion unit includes: a second resistor, a third resistor and a first diode;

The first end of the second resistor is connected to the battery, and the second end of the second resistor is connected to the reset pin of the reset chip, the first end of the third resistor and the first diode respectively. The positive electrode of the first diode is connected to the first end of the power button and the power management unit respectively, and the second end of the third resistor and the second end of the power button are both connected. Ground.
The electronic device according to claim 3, wherein the fuel gauge unit includes: a first fuel gauge chip and a second switch tube;

The signal input pin of the first fuel meter chip is connected to the controller, the activation pin of the first fuel meter chip is connected to the second end of the first switch tube, the signal output pin of the first fuel meter chip is connected to the control end of the second switch tube, the first end of the second switch tube is connected to the battery, and the second end of the second switch tube is connected to the electrical device.
The electronic device according to claim 1, wherein the second fuel gauge chip includes the fuel gauge unit and the reset unit; the electronic device further includes a third switch tube;

The second fuel gauge chip includes: a signal input pin, an activation pin, a signal output pin and a control pin; the fuel gauge unit includes the signal input pin, the activation pin and the signal output pin; the reset unit includes the control pin;

The signal input pin is connected to the controller, the activation pin is connected to the electrical device, the signal output pin is connected to the control end of the third switch tube, and the control pin is connected to The level conversion unit is connected, the first end of the third switch tube is connected to the battery, and the second end of the third switch tube is connected to the electrical device.
The electronic device according to claim 6, wherein the level conversion unit comprises: a second diode;

The anode of the second diode is connected to the control pin, and the cathode of the second diode is connected to the power management unit and the first end of the power key respectively.
The electronic device according to claim 1, wherein the electronic device further comprises: a protection unit;

The first end of the protection unit is connected to the battery, and the second end of the protection unit is connected to the electricity meter unit and the electrical device respectively.
The electronic device according to claim 8, wherein the fuel gauge unit includes a first sampling input terminal and a second sampling input terminal; the electronic device further includes: a fourth resistor;

The first end of the fourth resistor is connected to the second end of the protection unit and the first sampling input terminal respectively, and the second end of the fourth resistor is connected to the second sampling input terminal and the first sampling input terminal respectively. Connect with electrical devices.
The electronic device according to claim 1, wherein the power management unit includes: a fifth resistor and a third diode;

The first end of the fifth resistor is connected to the battery conversion voltage terminal, the second end of the fifth resistor is connected to the anode of the third diode, and the cathode of the third diode is respectively connected to the The second end of the level conversion unit is connected to the first end of the power button.