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Battery protection circuit and system

A technology for protecting circuits and batteries, applied in battery overcurrent protection, battery overvoltage protection, battery circuit devices, etc., can solve problems such as battery light consumption, and achieve the effect of improving experience

Active Publication Date: 2015-02-11
WUXI ZGMICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a battery protection circuit and system, which can solve the problem that the existing battery is exhausted after being placed for a period of time before use

Method used

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  • Battery protection circuit and system

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Embodiment Construction

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] In order to facilitate the understanding of the embodiments of the present invention, further explanations will be given below with specific embodiments in conjunction with the accompanying drawings, which are not intended to limit the embodiments of the present invention.

[0020] The battery protection circuit and system of the prese...

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Abstract

The embodiment of the invention relates to a battery protection circuit and a battery protection system. The battery protection circuit comprises a functional switch tube, a charger detection circuit, a programmable circuit and a charge-discharge detection control circuit, wherein the functional switch tube is connected between a negative electrode of a battery and the charge-discharge detection control circuit; the charger detection circuit is used for detecting whether the battery is connected to a charger, outputting a charge-discharge turn-off signal when the connection of the battery to the charger is not detected, and outputting a first charge-discharge activation signal when the connection of the battery to the charger is detected; the programmable circuit is used for outputting an initial state signal when receiving the charge-discharge turn-off signal and rewriting the initial state signal into a second charge-discharge activation signal when receiving the first charge-discharge activation signal; the charge-discharge detection control circuit is used for closing the functional switch tube and forbidding the battery to be charged and discharged when receiving the initial state signal, and opening the functional switch tube, controlling the battery to be charged and discharged and detecting the charge-discharge state of the battery when receiving the second charge-discharge activation signal. Thus the problem that the power of an existing battery is completely consumed after the battery stands for a period of time before being used can be solved.

Description

technical field [0001] The invention relates to the technical field of battery protection, in particular to a battery protection circuit and system. Background technique [0002] Existing batteries are generally allowed to discharge, so the battery may be discharged due to accidental contact with conductors during transportation; in addition, batteries are assembled into electronic devices (such as Bluetooth headsets, portable electronic devices such as smartphones or tablets), Even if the electronic device is not turned on, the battery is usually consumed due to a leakage path in the electronic device; moreover, the power-on button may be touched during the transportation of the electronic device and the power consumption may be consumed by mistaken power-on. [0003] It can be seen that the existing battery has the problem of being exhausted after being placed for a period of time before use, which leads to the situation that the electronic equipment cannot be turned on be...

Claims

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Application Information

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IPC IPC(8): H02J7/00
CPCH02J7/0036H02J7/00304H02J7/00308
Inventor 王钊
Owner WUXI ZGMICRO ELECTRONICS CO LTD
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