CN215378431U - Novel battery protection control chip configuration circuit - Google Patents
Novel battery protection control chip configuration circuit Download PDFInfo
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- CN215378431U CN215378431U CN202121158577.7U CN202121158577U CN215378431U CN 215378431 U CN215378431 U CN 215378431U CN 202121158577 U CN202121158577 U CN 202121158577U CN 215378431 U CN215378431 U CN 215378431U
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Abstract
In order to overcome the defects of the prior art, the utility model provides a novel battery protection control chip configuration circuit, if overvoltage, undervoltage, overtemperature, overdischarge current or overcharge current occurs, the protection circuit with a higher threshold value is firstly used for starting protection, and then the protection circuit with a lower threshold value is used for starting protection, so that a switch for starting protection of a circuit with certain configuration can be set between threshold values of multiple levels according to actual conditions, the requirements of working voltage, current or temperature of different configuration circuits can be flexibly adjusted, and the problems of the background art can be solved.
Description
Technical Field
The utility model relates to a novel battery protection control chip configuration circuit.
Background
In the related prior art, the circuits configured for the battery protection control chip generally include an overvoltage protection circuit, an undervoltage protection circuit, an over-temperature protection circuit, an over-discharge current protection circuit, and an over-current protection circuit, however, in practice, the threshold values of the overvoltage protection circuit, the undervoltage protection circuit, the over-temperature protection circuit, the over-discharge current protection circuit and the over-current protection circuit which are corresponding to the starting overvoltage protection circuit, the undervoltage protection circuit, the over-temperature protection circuit, the over-discharge current protection circuit and the over-current protection circuit are only one standard, in fact, the voltage or current of the direct connection end of the battery in the battery charge-discharge control is different from the voltage or current of the connection end of the chip, besides, other auxiliary control or configuration circuits have unique voltage or current requirements, it is difficult to meet the requirements for extending the circuit function in practice based on this if there is only one criterion for the threshold in the circuit.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a novel battery protection control chip configuration circuit, if overvoltage, undervoltage, overtemperature, overdischarge current or overcharge current occurs, the novel battery protection control chip configuration circuit is firstly started for protection by a protection circuit with a higher threshold value, and then is started for protection by a protection circuit with a lower threshold value, so that a switch for protection starting of certain configured circuits can be set between threshold values of multiple levels according to actual conditions, the working voltage or current or temperature requirements of different configured circuits can be flexibly adjusted, and the problems of the background art can be solved.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the protection circuit comprises a plurality of stages of protection circuits, wherein the plurality of stages of protection circuits are respectively and electrically connected with corresponding test circuits, the plurality of stages of protection circuits are also respectively and electrically connected with a power supply circuit of a battery protection control chip or a main control circuit, the main control circuit and the power supply circuit of the battery protection control chip are respectively and electrically connected with the circuit of the battery protection control chip, and each stage of protection circuit in the plurality of stages of protection circuits is provided with a threshold value for starting protection.
The multistage protection circuit comprises a multistage overvoltage protection circuit and a multistage undervoltage protection circuit, the multistage overvoltage protection circuit and the multistage undervoltage protection circuit are both electrically connected with the voltage test circuit, and the multistage overvoltage protection circuit and the multistage undervoltage protection circuit are both electrically connected with the power supply circuit of the battery protection control chip.
The multistage protection circuit comprises a multistage over-temperature protection circuit, and the multistage over-temperature protection circuit is electrically connected with the temperature test circuit and the main control circuit.
The multi-stage overvoltage protection circuit comprises a multi-stage over-discharge current protection circuit and a multi-stage overcharge current protection circuit, wherein the multi-stage over-discharge current protection circuit and the multi-stage overcharge current protection circuit are electrically connected with a current test circuit, and the multi-stage over-discharge current protection circuit and the multi-stage overcharge current protection circuit are electrically connected with a main control circuit.
The main control circuit comprises a battery protection charging and discharging management circuit.
The utility model has the advantages that if overvoltage, undervoltage, overtemperature, overdischarge current or overcharge current occurs, the protection circuit with higher threshold value is firstly used for starting protection, and then the protection circuit with lower threshold value is used for starting protection, so that a switch for protecting and starting certain configured circuits can be arranged between threshold values of a plurality of levels according to actual conditions, the working voltage or current or temperature requirements of different configured circuits can be flexibly adjusted, and the problems of the background technology can be solved.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a block diagram of the circuit components of an embodiment of the present invention.
Detailed Description
In specific implementation, as shown in fig. 1, the embodiment of the present invention includes a multi-stage protection circuit, where the multi-stage protection circuit is electrically connected to a corresponding test circuit, the multi-stage protection circuit is also electrically connected to a battery protection control chip power supply circuit or a main control circuit, both the main control circuit and the battery protection control chip power supply circuit are electrically connected to the battery protection control chip circuit, and the protection circuit of each stage in the multi-stage protection circuit sets a protection threshold for starting protection, in the implementation, if an overvoltage, an undervoltage, an overtemperature, an overdischarge current, or an overcharge current occurs, the protection circuit with a higher threshold is first started for protection, and then the protection circuit with a lower threshold is started for protection, so that in the implementation, for some configured circuits, switches for protection start can be set between the thresholds of multiple stages according to actual situations, therefore, the requirements of working voltage or current or temperature of different configuration circuits can be flexibly adjusted, and the problems of the background art can be solved.
In a preferred implementation, the utility model comprises a multi-stage protection circuit, the multi-stage protection circuit is respectively electrically connected with a corresponding test circuit, the multi-stage protection circuit is also respectively electrically connected with a battery protection control chip power supply circuit or a main control circuit, the main control circuit and the battery protection control chip power supply circuit are both electrically connected with the battery protection control chip circuit, the protection circuit of each stage in the multi-stage protection circuit is provided with a threshold value for starting protection, if overvoltage, undervoltage, overtemperature, overdischarge current or overcharge current occurs in the implementation, the protection circuit with a higher threshold value is firstly used for starting protection, then the protection circuit with a lower threshold value is used for starting protection, the multi-stage protection circuit comprises a multi-stage overvoltage protection circuit and a multi-stage undervoltage protection circuit, and the multi-stage overvoltage protection circuit and the multi-stage undervoltage protection circuit are both electrically connected with a voltage test circuit, the multistage overvoltage protection circuit and the multistage undervoltage protection circuit are both electrically connected with a power supply circuit of the battery protection control chip, and the multistage overvoltage protection circuit and the multistage undervoltage protection circuit can be combined by a plurality of conventional overvoltage protection circuits and a plurality of conventional undervoltage protection circuits in implementation.
In a preferred implementation, the protection circuit comprises a plurality of stages of protection circuits, the plurality of stages of protection circuits are respectively and electrically connected with corresponding test circuits, the plurality of stages of protection circuits are also respectively and electrically connected with a battery protection control chip power supply circuit or a main control circuit, the main control circuit and the battery protection control chip power supply circuit are both electrically connected with the battery protection control chip circuit, a protection circuit of each stage of the plurality of stages of protection circuits is provided with a protection starting threshold, the plurality of stages of protection circuits comprise a plurality of stages of over-temperature protection circuits, the plurality of stages of over-temperature protection circuits are electrically connected with a temperature test circuit and the main control circuit, the temperature test circuit in the implementation can be a temperature sensor, and the plurality of stages of over-temperature protection circuits can be combined by a plurality of conventional over-temperature protection circuits.
In a preferred implementation, the protection circuit comprises a plurality of protection circuits, the plurality of protection circuits are respectively and electrically connected with corresponding test circuits, the plurality of protection circuits are also respectively and electrically connected with a battery protection control chip power supply circuit or a main control circuit, the main control circuit and the battery protection control chip power supply circuit are both electrically connected with the battery protection control chip circuit, a threshold for starting protection is set for each protection circuit of the plurality of protection circuits, the plurality of overvoltage protection circuits comprise a plurality of over-discharge current protection circuits and a plurality of overcharge current protection circuits, the plurality of over-discharge current protection circuits and the plurality of overcharge current protection circuits are both electrically connected with a current test circuit, the plurality of over-discharge current protection circuits and the plurality of overcharge current protection circuits are both electrically connected with the main control circuit, and in implementation, the plurality of over-discharge current protection circuits and the plurality of overcharge current protection circuits can both be implemented by conventional protection circuits A plurality of over-discharge current protection circuits and a plurality of over-charge current protection circuits are combined.
In implementation, the main control circuit includes a battery protection charging and discharging management circuit, such as a circuit including an adapter and an interface for circuit discharging.
It will be appreciated by those skilled in the art that the utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are illustrative and not exclusive in all respects. All changes which come within the scope of or equivalence to the utility model are intended to be embraced therein.
Claims (5)
1. A novel battery protection control chip configuration circuit is characterized in that: the multi-stage protection circuit is electrically connected with the corresponding test circuit respectively, the multi-stage protection circuit is electrically connected with the battery protection control chip power supply circuit or the main control circuit respectively, the main control circuit and the battery protection control chip power supply circuit are electrically connected with the battery protection control chip circuit, and the multi-stage protection circuit is provided with a threshold value for starting protection for each level of protection circuit.
2. The novel battery protection control chip configuration circuit of claim 1, wherein: the multistage protection circuit comprises a multistage overvoltage protection circuit and a multistage undervoltage protection circuit, the multistage overvoltage protection circuit and the multistage undervoltage protection circuit are both electrically connected with the voltage test circuit, and the multistage overvoltage protection circuit and the multistage undervoltage protection circuit are both electrically connected with the power supply circuit of the battery protection control chip.
3. The novel battery protection control chip configuration circuit of claim 1, wherein: the multistage protection circuit comprises a multistage over-temperature protection circuit, and the multistage over-temperature protection circuit is electrically connected with the temperature test circuit and the main control circuit.
4. The novel battery protection control chip configuration circuit of claim 2, wherein: the multi-stage overvoltage protection circuit comprises a multi-stage over-discharge current protection circuit and a multi-stage overcharge current protection circuit, wherein the multi-stage over-discharge current protection circuit and the multi-stage overcharge current protection circuit are electrically connected with a current test circuit, and the multi-stage over-discharge current protection circuit and the multi-stage overcharge current protection circuit are electrically connected with a main control circuit.
5. The novel battery protection control chip configuration circuit of claim 1, wherein: the main control circuit comprises a battery protection charging and discharging management circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121158577.7U CN215378431U (en) | 2021-05-27 | 2021-05-27 | Novel battery protection control chip configuration circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121158577.7U CN215378431U (en) | 2021-05-27 | 2021-05-27 | Novel battery protection control chip configuration circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215378431U true CN215378431U (en) | 2021-12-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121158577.7U Active CN215378431U (en) | 2021-05-27 | 2021-05-27 | Novel battery protection control chip configuration circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215378431U (en) |
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2021
- 2021-05-27 CN CN202121158577.7U patent/CN215378431U/en active Active
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