CN115425716A

CN115425716A - Electronic device

Info

Publication number: CN115425716A
Application number: CN202211170637.6A
Authority: CN
Inventors: 徐超; 魏华兵
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-09-23
Filing date: 2022-09-23
Publication date: 2022-12-02
Also published as: WO2024061191A1

Abstract

The application discloses electronic equipment belongs to electronic equipment technical field. The electronic device includes: the electricity meter comprises an electricity meter unit, a reset unit, a level conversion unit, a battery, a power management unit and an electrical appliance; the first end of the electric quantity meter unit is connected with the battery, the second end of the electric quantity meter unit is connected with the electric appliance, the third end of the electric quantity meter unit is connected with the first end of the reset unit, the second end of the reset unit is connected with the first end of the level conversion unit, the second end of the level conversion unit is connected with the first end of a power key of the electronic equipment and the power management unit respectively, the second end of the power key is grounded, and the electric appliance comprises a controller.

Description

Electronic device

Technical Field

The application belongs to the technical field of electronic equipment, and particularly relates to electronic equipment.

Background

With the performance of electronic equipment (such as mobile phones and the like) becoming better and better, the perimeter of a switch of the electronic equipment is gradually increased, the time from production to the hand of a user is longer and longer, and batteries of the electronic equipment may consume electricity to a charging prohibition voltage or a lower voltage due to long-term micro-electricity consumption, so that the performance of the batteries is affected.

Disclosure of Invention

The embodiment of the application provides an electronic device, which can solve the problem that the battery performance is influenced due to micro power consumption when the electronic device is stored for a long time.

An embodiment of the present application provides an electronic device, including: the electricity meter comprises an electricity meter unit, a reset unit, a level conversion unit, a battery, a power management unit and an electrical appliance;

the first end of the electricity meter unit is connected with the battery, the second end of the electricity meter unit is connected with the electric appliance, the third end of the electricity meter unit is connected with the first end of the reset unit, the second end of the reset unit is connected with the first end of the level conversion unit, the second end of the level conversion unit is respectively connected with the first end of a power key of the electronic equipment and the power management unit, the second end of the power key is grounded, and the electric appliance comprises a controller.

In the embodiment of the application, the electronic device comprises an electricity meter unit, a reset unit, a level conversion unit, a battery, a power management unit and an electrical appliance, wherein the first end of the electricity meter unit is connected with the battery, the second end of the electricity meter unit is connected with the electrical appliance, the third end of the electricity meter unit is connected with the first end of the reset unit, the second end of the reset unit is connected with the first end of the level conversion unit, the second end of the level conversion unit is respectively connected with the first end of a power key of the electronic device and the power management unit, the second end of the power key is grounded, and the electrical appliance comprises a controller. When electronic equipment is in long-term not use, can be through the ammeter unit with each power consumptive with electric appliance disconnected connection, eliminate the leakage current of the high electric appliance of consumption electric appliance ammeter on battery back end device and the battery, make the complete machine get into the low-power consumption state, can be through pressing the power key when using, make level conversion unit be in the low level, and then make ammeter unit and battery and with electric appliance all switch on through reset unit, resume the power supply with electric appliance, avoided because electronic equipment does not use for a long time, the long-time little power consumption of electric appliance, reduce the loss of battery, promote the performance of battery, and simultaneously, only need press the power key can resume the power supply of electric appliance, and convenient for operation.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a block diagram of an electronic device according to an embodiment of the present application;

FIG. 2 is a detailed block diagram of an electronic device according to an embodiment of the present application;

fig. 3 is a schematic circuit structure diagram of an electronic device according to an embodiment of the present application;

fig. 4 is a schematic diagram of a detailed circuit structure of an electronic device according to an embodiment of the present application;

fig. 5 is a schematic circuit diagram of another electronic device according to an embodiment of the present application;

fig. 6 is a schematic diagram of a circuit configuration of the electricity meter of fig. 5.

In the figure, 100-electricity meter unit, 200-level conversion unit, 300-battery, 400-electric device, 500-power key, 600-power management unit, 700-reset unit and 800-protection unit.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be implemented in sequences other than those illustrated or described herein. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/", and generally means that the former and latter related objects are in an "or" relationship.

An electronic device provided by the embodiment of the present application is described in detail below with reference to fig. 1 to fig. 6 through a specific embodiment and an application scenario thereof.

Fig. 1 is a 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 consumer device 400.

The first end of the electricity meter unit 100 is connected with the battery 300, the second end of the electricity meter unit 100 is connected with the electrical appliance 400, the third end of the electricity meter unit 100 is connected with the first end of the reset unit 700, the second end of the reset unit 700 is connected with the first end of the level conversion unit 200, the second end of the level conversion unit 200 is respectively connected with the first end of the power key 500 of the electronic device and the power management unit 600, the second end of the power key 500 is grounded, and the electrical appliance 400 comprises a controller.

When the electronic device is in the first state, the controller sends a first instruction to the electricity meter unit 100, and the electricity meter unit 100 disconnects the battery 300 from the electrical appliance 400 according to the first instruction; in the case where the power key 500 receives the first operation, the level conversion unit 200 is at the low level, the electricity meter unit 100 is turned on with both the battery 300 and the electrical appliance 400 through the reset unit 700, the electronic device is in the second state, and the electrical appliance 400 resumes power supply.

It should be noted that the first state refers to a state in which the electronic device is not used for a long time, for example, a state in which the electronic device is used by a user after a period of time from the production of the electronic device, or a state in which the electronic device is turned off after the user does not use the electronic device for a long time. The second state refers to a state of the electronic device when the user uses the electronic device, and may be a state of the electronic device when the user operates the electronic device, or may be a charging state of the electronic device.

The first instruction may indicate that the electronic device enters a low power consumption state, at this time, the electrical device 400 on the host side of the electronic device is in a power-off state, and meanwhile, the electrical devices such as a charging integrated circuit of the electronic device are also in the power-off state, so that the overall power consumption of the electronic device is reduced to a lower level. The first operation may be a pressing operation, or may be a long-press operation or the like, where the long-press operation means that the pressing time period exceeds a certain time period, for example, exceeds 1s, 2s, or the like.

That is, when the electronic apparatus is not used for a long time, the first instruction may be transmitted to the fuel gauge unit 100 by the controller to cause the fuel gauge unit 100 to disconnect the battery 300 from other devices of the electronic apparatus, reducing power consumption of the electronic apparatus. When the electronic device is needed, the electronic device can be activated only by operating the power key 500, so that the electric devices 400 of the electronic device all return to normal operation.

In the embodiment of the present application, the electronic device includes an electricity meter unit 100, a reset unit 700, a level conversion unit 200, a battery 300, a power management unit 600, and an electrical appliance 400, a first end of the electricity meter unit 100 is connected to the battery 300, a second end of the electricity meter unit 100 is connected to the electrical appliance 400, a third end of the electricity meter unit 100 is connected to the first end of the reset unit 700, a second end of the reset unit 700 is connected to the first end of the level conversion unit 200, a second end of the level conversion unit 200 is connected to a first end of a power key 500 of the electronic device and the power management unit 600, respectively, and a second end of the power key 500 is grounded, where the electrical appliance 400 includes a controller. When the electronic equipment is not used for a long time, the battery 300 can be disconnected from each power-consuming electric appliance 400 through the electric meter unit 100, the leakage current of the electric meter of the electric appliance on the battery rear-end appliance and the battery is eliminated, the whole machine enters a low-power-consumption state, the power key 500 can be pressed when the electronic equipment is used, the level conversion unit 200 is enabled to be at a low level, the electric meter unit 100 is enabled to be conducted with the battery 300 and the electric appliance 400 through the reset unit 700, the power of the electric appliance 400 is recovered, the long-time micro power consumption of the electric appliance is avoided because the electronic equipment is not used for a long time, the loss of the battery 300 is reduced, the performance of the battery 300 is improved, meanwhile, the power supply of the electric appliance can be recovered only by pressing the power key 500, and the operation is convenient.

It should be noted that, as shown in fig. 2, the electronic device may be divided into a battery side and a host side, the battery side includes a battery 300, a protection Integrated Circuit (IC), an electricity meter unit 100, a sampling unit and a reset unit 700, the host side includes a level conversion unit 200, and various electric devices, such as an audio unit, a charging unit, an enan county/radio frequency unit, a controller (a central processing unit CPU, an image processor GPU, a Core), a fingerprint unit, a camera unit, a backlight/flash unit, a motor unit, a screen, and the like.

As shown in fig. 3, in one possible embodiment of the present application, the reset unit 700 may include a reset chip and a first switch tube.

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

The reset chip is internally provided with a discharge path, one end of the discharge path is connected with the Vout pin, and the other end of the discharge path is grounded. The voltage output pin (Vout) of the reset chip is connected to the electrical appliance 400, and is configured to release the voltage inside the electrical appliance 400 when the electronic device is in the first state, that is, release the voltage in the capacitor of the electrical appliance through the discharging path connected to Vout, thereby avoiding damage to the electrical appliance.

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

It should be noted that the first switch Transistor Q1 may be a PMOS Transistor (Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET), or other transistors, and functions as an on or off function in this application.

According to the embodiment of the application, the first switch tube Q1 is switched on through the level signal, when the reset pin RST of the reset chip inputs a low level, the first switch tube Q1 is switched on, so that the electric quantity meter unit 100 and the battery 300 are both switched on and the electric appliance 400 is switched on, and the power supply of the electric appliance 400 is recovered.

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 a first end of the first switching tube Q1.

The first resistor R1 is used for protecting the first switching tube Q1.

In one possible embodiment of the present application, the level converting 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, 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, the cathode of the first diode D1 is connected to the first end of the power key 500 and the power management unit 600, and the second end of the third resistor R3 and the second end of the power key 500 are both grounded.

In the embodiment of the application, the level conversion unit 200 outputs the high and low levels to the reset pin RST of the reset chip through the pull-up resistor R2 and the pull-down resistor R3, so as to control the on/off of the first switch tube Q1 in the reset chip, and further control whether to supply power to the electrical device 400.

In the case that the power key 500 of the electronic device receives the first operation, the reset pin RST is grounded, the first switching tube Q1 is turned on, the electricity meter unit 100 receives a high-level signal of the battery 300, the electricity meter unit 100 is electrically connected to the electrical appliance 400, the battery 300 can supply power to the electrical appliance 400, and the electronic device is in the second state.

In one possible embodiment of the present application, the electricity meter unit 100 may include: the first electricity meter chip and the second switch tube Q2; the signal input pin (IIC) of the first electricity meter chip is connected with the controller, the activation pin (Pack) of the first electricity meter chip is connected with the second end of the first switch tube Q1, the signal output pin (DSG) of the first electricity meter chip is connected with the control end of the second switch tube Q2, the first end of the second switch tube Q2 is connected with the battery 300, and the second end of the second switch tube Q2 is connected with the electrical appliance 400.

The fuel gauge unit 100 is further configured to calculate parameters such as a state of charge (SOC)/impedance/capacity/state of health of the battery cell of the battery 300, so as to detect the aging state of the battery cell.

It should be noted that the second switch Q2 may be an NMOS Transistor (Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET), or other transistors, and functions as turning on or off in the present application.

In this embodiment, the controller of the electronic device may control the electricity meter unit 100 to enter a low power consumption state through the signal input pin IIC of the first electricity meter chip, so as to reduce power consumption of the controller, and at the same time, may control to close the second switch tube Q2, thereby turning off power supply paths of the charging integrated circuit and the electricity-consuming devices, and eliminating power consumption of the battery rear-end device and the battery high-power-consuming devices, such as the electricity meter unit 100. That is, when the electronic device is in the first state, the controller sends the first command to the signal input pin IIC, and the electricity meter unit 100 controls the second switching tube Q2 to be turned off according to the first command, so as to disconnect the electrical connection with the electrical appliance 400. After the user presses the power key 500, the level conversion unit 200 is grounded, the reset unit 700 receives the low level of the level conversion unit 200, the first switch tube Q1 is controlled to be switched on, the activation pin Pack of the fuel gauge unit 100 receives a high level signal, the low power consumption state exits, the electrical appliance 400 is activated, the controller can send the high level signal to the enabling pin En of the reset unit 700 through the general purpose input/output port GPIO, the first switch tube Q1 is enabled to be switched off, and at the moment, the electronic device is in the second state.

The whole process based on the structure is as follows:

a controller of the electronic device sends a first instruction, which may be a shutdown (shutdown) instruction, to the fuel gauge unit 100 through an Inter-Integrated Circuit (IIC), the fuel gauge unit 100 enters a low power consumption mode after receiving the first instruction, and simultaneously controls the second switch tube Q2 to be turned off, the Vbat of the battery 300 for supplying power to the electrical appliance 400 is 0, the power consumption of the electrical appliance 400 end of the electronic device is segmented, and the electronic device enters a low power consumption state; when a user presses a power key 500 (powerkey), the level conversion unit 200 is grounded to form a low level, the reset chip receives the low level to control the first switch tube Q2 to be switched on, the level of the battery 300 is directly supplied to the fuel gauge unit 100, the active pin Pack of the fuel gauge unit 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 tube Q1 to be switched on, vbat recovers output to supply power to the electrical device 400, the electronic device recovers to a 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/output port GPIO, so that the first switch tube Q1 is turned off.

As shown in fig. 4, in one possible embodiment 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 electricity meter unit 100 and the electrical appliance 400, respectively.

That is to say, the electronic device may further include a protection unit 800, where the protection unit 800 is composed of a first protection module, a second protection module, and a fifth switching tube Q5, a sixth switching tube Q6, a seventh switching tube Q7, and an eighth switching tube Q8 as peripheral devices thereof, and may be matched with other units to implement protection mechanisms such as overvoltage, undervoltage, external short circuit, overcurrent, and overtemperature, and a load detection function. The protection module may be a protection chip.

Specifically, a first end of the first protection module and a first end of the second protection module are both connected to the positive electrode of the battery 300, a second end of the first protection module is connected to the control end of the seventh switching tube Q7 and the control end of the eighth switching tube Q8, respectively, a first end of the eighth switching tube Q8 is connected to the negative electrode of the battery 300, a second end of the eighth switching tube Q8 is connected to the first end of the seventh switching tube Q7, a second end of the seventh switching tube Q7 is connected to the first end of the fifth switching tube Q5, a second end of the second protection module is connected to the control end of the fifth switching tube Q5 and the control end of the sixth switching tube Q6, a second end of the fifth switching tube Q5 is connected to the first end of the sixth switching tube Q6, and a second end of the sixth switching tube Q6 is connected to the electricity meter unit 100 and the electrical appliance 400, respectively.

The fifth switching tube Q5, the sixth switching tube Q6, the seventh switching tube Q7 and the eighth switching tube Q8 may be NMOS tubes (Metal-Oxide-Semiconductor Field-Effect transistors, MOSFETs), or other transistors, and the function in this application is a function of turning on or off.

IN one possible embodiment 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; a first end of the fourth resistor R4 is connected to the second end of the protection unit and the first sampling input terminal IN1, respectively, and a second end of the fourth resistor R4 is connected to the second sampling input terminal IN2 and the electrical device 400, respectively.

In this embodiment of the application, the fourth resistor R4 is used for sampling, that is, the fuel gauge unit 100 may use the fourth resistor R4 for sampling, so as to monitor the cell condition of the battery 300.

As shown in fig. 5, in one possible embodiment of the present application, the second fuel gauge chip includes a fuel gauge unit 100 and a reset unit 700; the electronic equipment further comprises a third switching tube Q3; the second electricity meter chip includes: a signal input pin (IIC), an activation pin (Pack), a signal output pin (OUT) and a control pin (SHP); the electricity meter unit 100 includes a signal input pin IIC, an activation pin Pack, and a signal output pin OUT; the reset unit 700 includes a control pin SHP; the signal input pin IIC is connected to a controller, that is, a GPIO pin of the electrical device 400, the active pin Pack is connected to the electrical device 400, the signal output pin OUT is connected to a control terminal of the third switching tube Q3, the control pin SHP is connected to the level conversion unit 200, a first terminal of the third switching tube Q3 is connected to the battery 300, and a second terminal of the third switching tube Q3 is connected to the electrical device 400.

The fuel gauge of fig. 5 is augmented with control pin SHP and circuitry associated with power key 500 connected to control pin SHP. Specifically, the power key power-related circuit connected to the control pin SHP is shown in fig. 6. In this embodiment, the control pin SHP correspondingly added in the fuel gauge unit 100 is added with a SHP module control logic portion and a circuit structure connected between the control pin SHP and the SHP module control logic portion.

Specifically, as shown in fig. 6, the fuel gauge Unit 100 includes a processor Micro Control Unit (MCU), a memory, a communication module, a power supply module, a system clock, a composite analog-to-digital converter (ADC), a coulometer, a high-side protection switch tube (N-MOS) drive memory dump file (dump), an SHP module control logic, a fourth switch tube Q4, and other related circuits, wherein a first end of the processor MCU is connected to the memory, the communication module, the power supply module, the system clock, the composite ADC, the coulometer, and the high-side protection N-MOS drive dump, a second end of the processor MCU is connected to a first end of the SHP module control logic, a second end of the SHP module control logic is connected to a first end of the fourth switch tube Q4 and a reference voltage terminal Vref, a second end of the fourth switch tube Q4 is connected to a control pin SHP, and functions of each module are not specifically described herein, but are actually applied.

It should be noted that the third switch tube Q3 may be an NMOS (Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET) tube, or other transistors, and functions as on or off in this application.

That is, in addition to the embodiment that the reset unit 700 is used to perform reset in the above embodiment, the reset unit 700 may not be added, but a control pin SHP triggered by a low level and related circuits may be added to the fuel gauge chip to perform reset, so as to wake up the electronic device.

In one possible embodiment of the present application, the level shift 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 management unit 600 and the first end of the power key 500, respectively.

Under the condition that a control pin SHP is added to the second electricity meter chip to implement reset, the level conversion unit 200 only needs one second diode D2, and the level conversion unit outputs a high level and a low level to the control pin SHP of the second electricity meter chip through the power management unit 600 to control the on/off of the third switching tube Q3, so as to control whether power is supplied to the electrical appliance 400.

In this embodiment, the controller at the host end of the electronic device may control the electricity meter unit 100 to enter the low power consumption state through the signal input pin IIC of the second electricity meter chip, so as to reduce power consumption of the controller, and control the third switching tube Q3 to be turned off, thereby turning off the power supply path of the charging integrated circuit and the like, and avoiding power consumption of the power supply path device. That is, when the electronic device is in the first state, the controller sends a first command to the signal input pin IIC, and the electricity meter unit 100 controls the third switching tube Q3 to be closed according to the first command, so as to disconnect the electrical connection with the electrical appliance 400. After the user presses the power key 500, the level conversion unit 200 is grounded, the control pin SHP of the second fuel gauge chip receives a low level signal, the second fuel gauge chip is activated, the low power consumption state exits, the electrical appliance 400 is activated, and the controller can send a high level signal to the control pin SHP of the reset unit 700 through the general purpose input/output port GPIO, so that the third switch tube Q3 is turned off, and at this time, the electronic device is in the second state. Or under the condition that the electronic device is connected with the charger, the voltage detected by the electricity meter unit 100 is greater than the activation voltage, at this time, the second electricity meter chip is activated, the low power consumption state is exited, the electrical appliance 400 is activated, and the controller can send a high level signal to the control pin SHP of the reset unit 700 through the general input/output port GPIO, so that the third switching tube Q3 is turned off, and at this time, the electronic device is in the second state.

In one possible embodiment 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 electricity meter unit 100 and the electrical appliance 400, respectively.

That is to say, the electronic device may further include a protection unit 800, where the protection unit 800 is composed of a fifth switch tube Q5, a sixth switch tube Q6, a seventh switch tube Q7, and an eighth switch tube Q8, which are peripheral devices of the first protection module and the second protection module, and may be matched with other units to implement protection mechanisms such as overvoltage, undervoltage, external short circuit, overcurrent, and overtemperature, and a load detection function. The protection module may be a protection chip.

The specific connection structure is shown in fig. 4, which has been described in detail in the above embodiments, and the description of this embodiment is omitted.

In one possible embodiment of the present application, the power management unit 600 may include: a fifth resistor R5 and a third diode D3; a first end of the fifth resistor R5 is connected to the battery conversion voltage terminal VDD, a second end of the fifth resistor R5 is connected to an anode of the third diode D3, and a cathode of the third diode D3 is connected to a second end of the level conversion unit 200 and a first end of the power key 500, respectively.

Under the condition that a control pin SHP is added to the electricity meter chip to implement resetting, the level conversion unit 200 only needs one second diode, and outputs a high level and a low level to the control pin SHP of the second electricity meter chip through the power management unit 600 to control the on/off of the third switching tube Q3, so as to control whether power is supplied to the electrical appliance 400.

In the embodiment of the present application, the electronic device processing includes, in addition to the above devices, a display screen, a camera module, and the like, which are not specifically described in the present application. The electronic equipment in the application can be equipment such as a full-screen mobile phone and a tablet personal computer, and is not specifically described in detail in the application, so that the actual situation is the standard.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, 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 will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application or portions thereof that contribute to the prior art may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An electronic device, comprising: the electricity meter comprises an electricity meter unit, a reset unit, a level conversion unit, a battery, a power management unit and an electrical appliance;

2. The electronic device of claim 1, wherein the reset unit comprises a reset chip and a first switch tube;

the voltage input pin of the reset chip is connected with the battery, the voltage output pin of the reset chip is connected with the electrical appliance, the reset pin of the reset chip is connected with the first end of the level conversion unit, the enable pin of the reset chip is connected with the controller, the output pin of the reset chip is connected with the control end of the first switch tube, the first end of the first switch tube is connected with the battery, and the second end of the first switch tube is connected with the fuel gauge unit.

3. 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 with the battery, and the second end of the first resistor is connected with the first end of the first switch tube.

4. The electronic device according to claim 2, wherein the level conversion unit includes: the second resistor, the third resistor and the first diode;

the first end of the second resistor is connected with a battery, the second end of the second resistor is respectively connected with the reset pin of the reset chip, the first end of the third resistor and the anode of the first diode, the cathode of the first diode is respectively connected with the first end of the power key and the power management unit, and the second end of the third resistor and the second end of the power key are both grounded.

5. The electronic device according to claim 3, wherein the electricity meter unit includes: the first electricity meter chip and the second switch tube;

the signal input pin of the first electricity meter chip is connected with the controller, the activation pin of the first electricity meter chip is connected with the second end of the first switch tube, the signal output pin of the first electricity meter chip is connected with the control end of the second switch tube, the first end of the second switch tube is connected with the battery, and the second end of the second switch tube is connected with the electrical appliance.

6. The electronic device of claim 1, wherein a second fuel gauge chip comprises the fuel gauge unit and the reset unit; the electronic equipment further comprises a third switch tube;

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

the signal input pin is connected with the controller, the activation pin is connected with the electrical appliance, the signal output pin is connected with the control end of the third switch tube, the control pin is connected with the level conversion unit, the first end of the third switch tube is connected with the battery, and the second end of the third switch tube is connected with the electrical appliance.

7. The electronic device according to claim 6, wherein the level conversion unit includes: a second diode;

the anode of the second diode is connected with the control pin, and the cathode of the second diode is respectively connected with the power management unit and the first end of the power key.

8. The electronic device of claim 1, further comprising: a protection unit;

the first end of the protection unit is connected with the battery, and the second end of the protection unit is respectively connected with the electricity meter unit and the electric appliance.

9. The electronic device of claim 8, wherein the fuel gauge unit comprises a first sampling input terminal and a second sampling input terminal; the electronic device further includes: a fourth resistor;

and a first end of the fourth resistor is connected with a second end of the protection unit and the first sampling input terminal respectively, and a second end of the fourth resistor is connected with the second sampling input terminal and the electrical appliance respectively.

10. The electronic device of claim 1, wherein the power management unit comprises: a fifth resistor and a third diode;

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