Battery control circuit, battery and electronic equipment

Abstract

The utility model relates to the field of lithium battery protection, in particular to a battery control circuit, a battery and electronic equipment. A voltage division circuit is arranged at the power supply end of a battery protection chip, when the power consumption of the battery needs to be reduced, a switch is turned on, the voltage division circuit is conducted, voltage division is carried out on a signal of the power supply end of the battery protection chip, and the battery protection chip enters an over-discharge dormant state when the battery protection chip detects that the signal of the power supply end is lower than a set safety value; the battery control circuit enables the battery protection chip and the circuit in the battery to enter a low-power-consumption mode, the energy consumption of the battery is extremely low, the service life of the battery is prevented from being shortened due to power shortage, the battery control circuit is simple in structure, the selectivity of the battery protection chip is multiple, multiple alternative schemes are provided, the cost of the energy storage battery is reduced, and the service life of the energy storage battery is prolonged. And the reliability and the stability of the circuit are ensured.

Description

Technical Field

[0001] The utility model relates to the field of lithium battery protection, in particular to a battery control circuit, a battery and an electronic device. Background Art

[0002] An energy storage battery is a battery system specifically designed to store electrical energy and release it when needed. Such batteries convert electrical energy into chemical energy through chemical reactions for storage and then convert the chemical energy back into electrical energy when power is required. Energy storage batteries play important roles in multiple fields, especially in renewable energy, smart grids, backup power supplies, and mobile devices.

[0003] To reduce the power consumption of energy storage batteries, a sleep function is set in load devices such as electronic products. However, the sleep function can only reduce the power consumption of the load device, and the power consumption of the protection chip and circuit inside the battery still exists, which will still cause the battery's power to drain. Further, to reduce the power consumption of energy storage batteries, a protection chip with a shipping function is also provided to make the protection chip enter the sleep state and reduce its power consumption. However, this type of protection chip is expensive and has poor substitutability, greatly increasing the cost of energy storage batteries. Summary of the Utility Model

[0004] Embodiments of the utility model provide a battery control circuit, a battery and an electronic device to solve the problem of increasing the cost of energy storage batteries caused by using a protection chip with a shipping function to reduce the energy consumption of energy storage batteries in the prior art.

[0005] In a first aspect, the utility model provides a battery control circuit, including: a voltage division circuit and a battery protection chip. The input end of the voltage division circuit is used to connect to the positive electrode of the power supply battery, the input end of the voltage division circuit is used to connect to the positive terminal of the load, the first output end of the voltage division circuit is connected to the power supply end of the battery protection chip, a switch is serially arranged in the voltage division circuit, and the battery protection chip is used to enter the over-discharge sleep state when the switch is turned on and the voltage division circuit performs voltage division.

[0006] In an embodiment, the voltage division circuit further includes: a first resistor and a second resistor. One end of the first resistor is used to connect to the positive electrode of the power supply battery, one end of the first resistor is used to connect to the positive terminal of the load, the other end of the first resistor is connected to the power supply end of the battery protection chip, one end of the second resistor is connected to the other end of the first resistor, the other end of the second resistor is used to connect to the input end of the switch, and the output end of the switch is grounded.

[0007] In an embodiment, the switch is a controllable switch, and the control end of the switch is electrically connected to a single-chip microcomputer.

[0008] In one embodiment, the battery control circuit further includes: an anti-reverse circuit, the positive terminal of the anti-reverse circuit is connected to the other end of the second resistor, and the negative terminal of the anti-reverse circuit is connected to the input terminal of the switch.

[0009] In one embodiment, the battery control circuit further includes: a clamping circuit, one end of the clamping circuit is connected to the input terminal of the switch, and the other end of the clamping circuit is grounded.

[0010] In one embodiment, the battery control circuit further includes: a filtering circuit, one end of the filtering circuit is connected to the other end of the second resistor, and the other end of the filtering circuit is grounded.

[0011] In one embodiment, the battery control circuit further includes: a detection circuit, one end of the detection circuit is connected to the detection terminal of the battery protection chip, and the other end of the detection circuit is grounded.

[0012] In one embodiment, the battery control circuit further includes: a discharge switch tube and a charge switch tube. The input terminal of the discharge switch tube is used to connect to the negative terminal of the power supply battery. The output terminal of the discharge switch tube is connected to the input terminal of the charge switch tube. The output terminal of the charge switch tube is grounded. The control terminal of the discharge switch tube is connected to the discharge control terminal of the battery protection chip, and the control terminal of the charge switch tube is connected to the charge control terminal of the battery protection chip.

[0013] In a second aspect, the present embodiment provides a battery, and the battery includes the battery control circuit as described in the first aspect and its improvements.

[0014] In a third aspect, the present embodiment provides an electronic device, and the electronic device includes the battery control circuit as described in the first aspect and its improvements.

[0015] The beneficial effects of the embodiments of the present utility model compared with the prior art are:

[0016] The battery control circuit of the present invention sets a voltage divider circuit at the power supply end of the battery protection chip. When it is necessary to reduce the battery power consumption, the switch is turned on to turn on the voltage divider circuit, which divides the signal at the power supply end of the battery protection chip. When the battery protection chip detects that the signal at the power supply end is lower than the set safety value, the battery protection chip enters an over-discharge sleep state, causing the battery protection chip and circuit inside the battery to enter a low-power mode. If it is necessary to release the low-power mode, it is only necessary to connect a charger between the positive terminal of the load and the ground to charge the power supply battery, and the power supply battery can return to normal working mode. The battery control circuit of the present invention uses a voltage divider circuit to cause the battery protection chip and circuit inside the battery to enter a low-power mode. The battery energy consumption is extremely low, which prevents the battery life from being shortened due to power loss. In addition, the battery control circuit of the present invention has a simple structure, and the battery protection chip has many options. There are multiple alternatives, which reduce the cost of the energy storage battery while ensuring the reliability and stability of the circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 This is a schematic diagram of the module structure of a battery control circuit provided by an embodiment of the present utility model;

[0019] Figure 2 This is a circuit connection diagram of a voltage divider circuit provided in one embodiment of the present utility model;

[0020] Figure 3 This is a circuit connection diagram of a battery control circuit provided by an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the module structure of a battery control circuit provided by an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the module structure of a battery control circuit provided by an embodiment of the present utility model;

[0023] Among them, 1. voltage divider circuit, 2. battery protection chip, 3. power supply battery, 4. load, 5. anti-reverse circuit, 6. clamping circuit, 7. filter circuit, 8. detection circuit, 11. switch, 21. discharge switch tube, 22. charging switch tube. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] In order to thoroughly understand the present utility model, detailed structures and steps will be presented in the following description to explain the technical solutions proposed by the present utility model. The preferred embodiments of the present utility model are described in detail below. However, in addition to these detailed descriptions, the present utility model can also have other embodiments.

[0028] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the disclosure belongs. It will be further understood that the terms used herein should be interpreted as having a meaning consistent with their meaning in the context of this specification and the related art, and will not be interpreted in an idealized or overly formal sense unless clearly defined herein.

[0029] In one embodiment, as Figure 1As shown in the figure, a schematic diagram of the module structure of a battery control circuit is provided, including: a voltage dividing circuit 1 and a battery protection chip 2. The input end of the voltage dividing circuit 1 is used to connect to the positive electrode of the power supply battery 3, and the input end of the voltage dividing circuit 1 is used to connect to the positive terminal of the load 4. The first output end of the voltage dividing circuit 1 is connected to the power supply terminal of the battery protection chip 2. A switch 11 is connected in series in the voltage dividing circuit 1. The battery protection chip 2 is used to enter the over-discharge sleep state when the switch 11 is turned on and the voltage dividing circuit 1 divides the voltage.

[0030] Specifically, the battery protection chip 2 is any battery protection chip with an over-discharge sleep function. Further, the battery protection chip 2 is provided with a detection pin, and the signal at the negative terminal of the load 4 is detected by using the detection pin. When the detection pin detects that the load terminal is connected to a charger, the over-discharge sleep state of the battery protection chip 2 is released, the discharge switch tube is turned on, and the power supply battery 3 discharges. Preferably, the model of the battery protection chip 2 is R5480K266CL.

[0031] The first output end in the voltage dividing circuit 1 is the voltage dividing point of the voltage dividing circuit 1. The voltage dividing point of the voltage dividing circuit 1 is the position where the voltage in the voltage dividing circuit 1 is divided into different ratios. The switch on the voltage dividing circuit 1 can be any kind of switch. The switch can be a manual switch, such as a push-button switch, and the voltage dividing circuit 1 is controlled by pressing and lifting the button; the switch can also be an electronic control switch, such as an optocoupler, a switch tube or a relay, and the voltage dividing circuit 1 is controlled by controlling the control end of the electronic control switch. The electronic control switch can be controlled by the single-chip microcomputer in the load 4, or a single-chip microcomputer can be set in the battery control circuit to control the electronic control switch.

[0032] It can be understood that voltage dividing resistors should be provided in the voltage dividing circuit 1. When the switch is turned off, the voltage dividing circuit is disconnected, and the signal at the power supply terminal of the battery protection chip 2 reaches the maximum value, which is equal to the voltage output from the power supply battery 3 to the positive terminal of the load 4; when the switch is turned on, the voltage dividing circuit 1 is turned on, the signal at the power supply terminal of the battery protection chip 2 is divided by the voltage dividing circuit 1, and the power supply terminal of the battery protection chip 2 is pulled down. The parameters of the resistors in the voltage dividing circuit 1 can be set according to the actual application situation, so that when the voltage dividing circuit 1 is turned on, the voltage at the power supply terminal of the battery protection chip 2 is less than the set safety value of the battery protection chip 2, and the battery protection chip 2 enters the over-discharge sleep state.

[0033] The working process of the above-mentioned battery control circuit is: when the power supply battery 3 normally supplies power to the load 4, the switch is disconnected, and the power supply battery 3 supplies power to the load 4; when the power supply battery 3 needs to enter the low power consumption mode, the switch is closed, and the voltage divider circuit 1 is turned on to divide the signal at the power supply end of the battery protection chip 2. The battery protection chip 2 detects that the signal at the power supply end is lower than the set safety value, and the battery protection chip 2 enters the over-discharge sleep state. Furthermore, the signal at the negative end of the load 4 is detected through the detection pin of the battery protection chip 2. When it is detected that the load end is connected to the charger, the over-discharge sleep state of the battery protection chip 2 is released, the discharge switch tube is turned on, and the power supply battery 3 is discharged.

[0034] The battery control circuit of this embodiment is provided with a voltage divider circuit 1 at the power supply end of the battery protection chip 2. When it is necessary to reduce the battery power consumption, the switch is turned on to turn on the voltage divider circuit 1, which divides the signal at the power supply end of the battery protection chip 2. When the battery protection chip 2 detects that the signal at the power supply end is lower than the set safety value, the battery protection chip 2 enters an over-discharge dormant state, causing the battery protection chip 2 and the circuit inside the battery to enter a low-power mode. If it is necessary to release the low-power mode, it is only necessary to charge the power supply battery 3 by connecting a charger between the positive terminal of the load 4 and the ground, and the power supply battery 3 can return to normal working mode. The battery control circuit of the present invention uses the voltage divider circuit 1 to cause the battery protection chip 2 and the circuit inside the battery to enter a low-power mode. The battery energy consumption is extremely low, which prevents the battery life from being shortened due to power loss. In addition, the battery control circuit of the present invention has a simple structure, and the battery protection chip 2 has many options and multiple alternatives. While reducing the cost of the energy storage battery, it also ensures the reliability and stability of the circuit.

[0035] In one embodiment, if Figure 2 As shown, a circuit connection diagram of a voltage divider circuit 1 is provided. Figure 1 Based on the battery control circuit shown, the voltage divider circuit 1 also includes: a first resistor R1 and a second resistor R3, one end of the first resistor R1 is used to connect to the positive electrode of the power supply battery 3, one end of the first resistor R1 is used to connect to the positive end of the load 4, the other end of the first resistor R1 is connected to the power supply end of the battery protection chip 2, one end of the second resistor R3 is connected to the other end of the first resistor R1, and the other end of the second resistor R3 is used to connect to the input end of the switch 11, and the output end of the switch 11 is grounded.

[0036] The resistance values of the first resistor R1 and the second resistor R3 can be set according to the actual application conditions. Preferably, the resistance value of the second resistor R3 is the same as that of the first resistor R1, and the range is between 100Ω and 1KΩ. When the switch 11 in the voltage dividing circuit 1 is disconnected, the voltage at the power supply terminal of the battery protection chip 2 is equal to the voltage output to the load terminal. When the switch 11 in the voltage dividing circuit 1 is closed, the voltage at the power supply terminal of the battery protection chip 2 is equal to (the resistance value of the first resistor R1 / the resistance value of the first resistor R1 + the resistance value of the second resistor R3) × the voltage output to the load terminal.

[0037] As another embodiment, the first resistor R1 can also be a battery pack formed by connecting multiple resistors in series or in parallel, and the second resistor R3 can also be a battery pack formed by connecting multiple resistors in series or in parallel.

[0038] The working process of the above battery control circuit is as follows: when the switch 11 in the voltage dividing circuit 1 is closed, the first resistor R1 and the second resistor R3 are used to divide the signal at the power supply terminal of the battery protection chip 2, so that the voltage at the power supply terminal of the battery protection chip 2 is less than the set safety value, ensuring that the battery protection chip 2 enters the over-discharge sleep state.

[0039] In the battery control circuit of this embodiment, the first resistor R1 and the second resistor R3 are arranged in the voltage dividing circuit 1. By setting the resistance values of the first resistor R1 and the second resistor R3, it is ensured that the battery protection chip 2 can enter the over-discharge sleep state after the switch 11 is turned on. The circuit structure is simple and has wide applicability.

[0040] As Figure 3 shown, a circuit connection diagram of a battery control circuit is provided.

[0041] In one embodiment, as Figure 3 shown, on the basis of the battery control circuit shown above Figure 2 shown, the switch 11 is a controllable switch, and the control end of the switch 11 is electrically connected to the single-chip microcomputer.

[0042] It can be understood that the controllable switch 11 in this embodiment is any kind of electronic control switch. The controllable switch 11 can be a relay, the controllable switch 11 can also be an optocoupler, and the controllable switch 11 can also be a switching transistor. The single-chip microcomputer in this embodiment can be the single-chip microcomputer in the load 4, or can also be a single-chip microcomputer specially configured in the battery control circuit to control the controllable switch 11. Preferably, as Figure 3 shown, the single-chip microcomputer in this embodiment is the single-chip microcomputer in the load 4, and the single-chip microcomputer in this embodiment is any model of single-chip microcomputer.

[0043] Furthermore, components can be arranged in the voltage dividing circuit 1 to protect the voltage dividing circuit 1 and prevent the signal of the single-chip microcomputer from interfering with the voltage dividing circuit 1.

[0044] The working process of the above battery control circuit is as follows: when it is necessary to reduce the power consumption of the battery, the microcontroller is used to control the controllable switch 11 to conduct, and the voltage dividing circuit 1 divides the voltage of the battery protection chip 2, and the battery protection chip 2 enters the over-discharge sleep state.

[0045] In the battery control circuit of this embodiment, the microcontroller is set to control the controllable switch 11, which enhances the control flexibility, makes the circuit more intelligent and automated, and improves the reliability and stability of the circuit.

[0046] In one embodiment, as Figure 3 shown, on the basis of the above embodiment, the battery control circuit further includes: an anti-reverse circuit 5, the positive end of the anti-reverse circuit 5 is connected to the other end of the second resistor R3, and the negative end of the anti-reverse circuit 5 is connected to the input end of the switch 11.

[0047] It can be understood that the anti-reverse circuit 5 of this embodiment can be any kind of anti-reverse circuit. Preferably, as Figure 3 shown, the anti-reverse circuit 5 is a diode D1, and the one-way conduction property of the diode D1 is used for anti-reverse protection.

[0048] The working process of the above battery control circuit is as follows: when the switch 11 is closed, the branch where the second resistor R3 is located in the voltage dividing circuit 1 conducts, and the signal of the branch flows to the switch 11 through the anti-reverse circuit 5.

[0049] In the battery control circuit of this embodiment, the anti-reverse circuit 5 is set in the circuit to avoid damage to the circuit caused by the reverse current of the microcontroller and ensure the stable operation of the circuit.

[0050] In one embodiment, as Figure 3 shown, on the basis of the above embodiment, the battery control circuit further includes: a clamping circuit 6, one end of the clamping circuit 6 is connected to the input end of the switch 11, and the other end of the clamping circuit 6 is grounded.

[0051] It can be understood that the clamping circuit 6 of this embodiment can be any kind of clamping circuit. Preferably, as Figure 3 shown, the clamping circuit 6 is a bidirectional TVS tube TVS1, and the TVS tube TVS1 is used to limit the voltage in the circuit to prevent the circuit from being damaged by too high voltage.

[0052] The working process of the above battery control circuit is as follows: when the switch 11 conducts, the clamping circuit 6 is used to protect the circuit.

[0053] In the battery control circuit of this embodiment, the clamping circuit 6 is set in the circuit for protection. While preventing the circuit from being damaged by too high voltage, it also improves the accuracy and stability of the signal.

[0054] In one embodiment, as Figure 3As shown, based on the above embodiments, the battery control circuit further includes: a filtering circuit 7, one end of the filtering circuit 7 is connected to the other end of the second resistor R3, and the other end of the filtering circuit 7 is grounded.

[0055] It can be understood that the filtering circuit 7 in this embodiment is any kind of filtering circuit. Preferably, as Figure 3 shown, a capacitor C2 is arranged in the filtering circuit 7 for filtering.

[0056] The working process of the above battery control circuit is as follows: when the switch 11 is turned on, the branch where the second resistor R3 is located is turned on, and the filtering circuit 7 filters the signal of the branch.

[0057] In the battery control circuit of this embodiment, a filtering circuit 7 is arranged in the circuit to filter the branch in the voltage dividing circuit 1, further ensuring the reliability and stability of the circuit.

[0058] In one embodiment, as Figure 4 shown, a schematic diagram of the module structure of a battery control circuit is provided. Based on the above Figure 1 shown battery control circuit, the battery control circuit further includes: a detection circuit 8, one end of the detection circuit 8 is connected to the detection end of the battery protection chip 2, and the other end of the detection circuit 8 is grounded.

[0059] Preferably, a resistor can be arranged in the detection circuit 8 to protect the battery protection chip 2.

[0060] Furthermore, a fuse can be arranged in the circuit before the positive pole of the load to protect the load.

[0061] The working process of the above battery control circuit is as follows: when the power supply battery 3 supplies power to the load 4, the detection circuit 8 detects a low-level signal. When the switch 11 is turned on and the battery protection chip 2 enters the over-discharge sleep state, the battery protection chip 2 pulls up the signal at its detection end. When the charger is connected to the load 4 end, the output of the power supply battery 3 is zero, the detection circuit 8 is pulled down to a low-level signal, and the over-discharge sleep state of the battery protection chip 2 is released, and the power supply battery 3 can continue to supply power.

[0062] In the battery control circuit of this embodiment, the sleep state of the battery protection chip 2 can be released through the detection circuit 8, and the power supply battery 3 can supply power normally, improving the user experience.

[0063] In one embodiment, as Figure 5 shown, a schematic diagram of the module structure of a battery control circuit is provided. Based on the above Figure 1Based on the shown battery control circuit, the battery control circuit further includes: a discharge switch tube 21 and a charge switch tube 22. The input end of the discharge switch tube 21 is used to connect to the negative terminal of the power supply battery 3. The output end of the discharge switch tube 21 is connected to the input end of the charge switch tube 22. The output end of the charge switch tube 22 is grounded. The control end of the discharge switch tube 21 is connected to the discharge control end of the battery protection chip 2. The control end of the charge switch tube 22 is connected to the charge control end of the battery protection chip 2.

[0064] Preferably, the discharge switch tube 21 and the charge switch tube 22 are MOS tubes.

[0065] The working process of the above battery control circuit is as follows: When the power supply battery 3 supplies power normally, the discharge switch tube 21 conducts, and a loop is formed between the load 4 and the power supply battery 3; when the power supply battery 3 needs to enter the low-power mode, the switch 11 closes, the voltage dividing circuit 1 divides the signal at the power supply terminal of the battery protection chip 2, the battery protection chip 2 enters the over-discharge sleep state, the discharge switch tube 21 turns off, and the circuit also enters the low-consumption mode, and the power supply loop is disconnected; when a charger is externally connected to the load end, the over-discharge sleep state is released, and the charge switch tube 22 is turned on.

[0066] The battery control circuit of this embodiment sets the charge switch tube 22 and the discharge switch tube 21 to control the loop formed by the power supply battery 3 and the load 4, ensuring the safety of the battery and the load 4, and realizing efficient and safe power supply management.

[0067] In one embodiment, a battery is provided, and the battery includes the battery control circuit mentioned in any of the above embodiments.

[0068] In one embodiment, an electronic device is provided, and the electronic device includes the battery control circuit mentioned in any of the above embodiments.

[0069] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A battery control circuit, characterized in that, Comprising: A voltage-dividing circuit and a battery protection chip. The input end of the voltage-dividing circuit is used to connect to the positive pole of the power supply battery, and the input end of the voltage-dividing circuit is used to connect to the positive terminal of the load. The first output end of the voltage-dividing circuit is connected to the power supply end of the battery protection chip. A switch is serially arranged in the voltage-dividing circuit. The battery protection chip is used to enter the over-discharge sleep state when the switch is turned on and the voltage-dividing circuit divides the voltage.

2. The battery control circuit according to claim 1, wherein, The voltage-dividing circuit further comprises: a first resistor and a second resistor. One end of the first resistor is used to connect to the positive pole of the power supply battery, and one end of the first resistor is used to connect to the positive terminal of the load. The other end of the first resistor is connected to the power supply end of the battery protection chip. One end of the second resistor is connected to the other end of the first resistor, and the other end of the second resistor is used to connect to the input end of the switch. The output end of the switch is grounded.

3. The battery control circuit according to claim 2, wherein, The switch is a controllable switch, and the control end of the switch is electrically connected to the single-chip microcomputer.

4. The battery control circuit according to claim 3, wherein The battery control circuit further comprises: an anti-reverse circuit. The positive terminal of the anti-reverse circuit is connected to the other end of the second resistor, and the negative terminal of the anti-reverse circuit is connected to the input end of the switch.

5. The battery control circuit according to claim 4, characterized in that The battery control circuit further comprises: a clamping circuit. One end of the clamping circuit is connected to the input end of the switch, and the other end of the clamping circuit is grounded.

6. The battery control circuit according to claim 5, wherein The battery control circuit further comprises: a filtering circuit. One end of the filtering circuit is connected to the other end of the second resistor, and the other end of the filtering circuit is grounded.

7. The battery control circuit according to claim 1, characterized in that, The battery control circuit further comprises: a detection circuit. One end of the detection circuit is connected to the detection end of the battery protection chip, and the other end of the detection circuit is grounded.

8. The battery control circuit according to claim 1, wherein The battery control circuit further comprises: a discharge switch tube and a charge switch tube. The input end of the discharge switch tube is used to connect to the negative terminal of the power supply battery, the output end of the discharge switch tube is connected to the input end of the charge switch tube, the output end of the charge switch tube is grounded, the control end of the discharge switch tube is connected to the discharge control end of the battery protection chip, and the control end of the charge switch tube is connected to the charge control end of the battery protection chip.

9. A battery, characterized in that, The battery comprises the battery control circuit according to any one of claims 1-8.

10. An electronic device, characterized in that, The electronic device comprises the battery control circuit according to any one of claims 1-8.

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