Under-voltage protection circuit and protection method

An under-voltage protection and circuit technology, applied in safety/protection circuits, circuit devices, battery circuit devices, etc., can solve problems such as battery power loss and damage, and achieve the effects of battery protection, simple control loop, and low cost

Pending Publication Date: 2019-11-08
HANGZHOU BMSER TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide an undervoltage protection circuit and pro

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  • Under-voltage protection circuit and protection method

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[0016] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to these embodiments. The present invention covers any alternatives, modifications, equivalent methods and solutions made within the spirit and scope of the present invention.

[0017] In order for the public to have a thorough understanding of the present invention, specific details are described in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details.

[0018] In the following paragraphs, the present invention is described in more detail by way of example with reference to the drawings. It should be noted that the drawings all adopt a relatively simplified form and all use imprecise proportions, so as to conveniently and clearly assist in explaining the purpose of the embodiments of th...

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Abstract

The invention provides an under-voltage protection circuit and a protection method. A battery pack charges a battery management system through a switching power supply; when the battery pack voltage is less than a first threshold, the battery management system and the switching power supply are powered off. When the battery has a power shortage risk, all power consumption loops can be cut off in time, and the battery is protected.

Description

technical field [0001] The invention relates to the field of battery management systems, in particular to an undervoltage protection circuit and a protection method. Background technique [0002] The power supply of the battery management system BMS needs to be obtained from the battery. When the battery management system BMS is left uncharged for a long time, it will cause the battery to run out of power or even irrecoverably damaged. If a manual switch is used to control the power supply of the battery management system BMS, the autonomous protection function of the battery management system BMS cannot be realized. If human factors forget to turn off the manual switch, the battery will also be damaged due to power loss. Contents of the invention [0003] The purpose of the present invention is to provide an undervoltage protection circuit and protection method, which are used to solve the problem of battery power loss and damage in the prior art. [0004] To achieve the...

Claims

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Application Information

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IPC IPC(8): H02J7/00
CPCH02J7/0029
Inventor 周逊伟
Owner HANGZHOU BMSER TECH
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