Battery protection circuit board

A technology for protecting circuit boards and batteries, which is applied to battery circuit devices, safety/protection circuits, circuit devices, etc., and can solve the problems of increasing the area of ​​battery protection circuit boards, large area of ​​battery protection circuit boards, and increased costs

Active Publication Date: 2021-01-22
SUZHOU XYSEMI ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the structure of placing the MOS tube outside the control chip makes the battery protection circuit board area larger, and in the prior art, two MOS tube

Method used

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  • Battery protection circuit board
  • Battery protection circuit board
  • Battery protection circuit board

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Embodiment Construction

[0040] 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 creative efforts fall within the protection scope of the present invention.

[0041] An embodiment of the present invention provides a battery protection circuit board, figure 1It is a schematic structural diagram of a battery protection circuit board provided by an embodiment of the present invention, refer to figure 1 , the battery protection circuit board includes: a control chip 100, the control chip 100 includes a fir...

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PUM

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Abstract

The invention discloses a battery protection circuit board, which comprises a control chip, wherein a control transistor is integrated in the control chip, and the control transistor is connected between a second voltage end and a third voltage end; the battery protection circuit board further comprises a substrate voltage selection circuit and a gate voltage control circuit; the substrate voltageselection circuit is electrically connected with the substrate end of the control transistor and is used for outputting the lowest voltage of the system to the substrate end of the control transistor; and the gate voltage control circuit is used for generating gate voltage for controlling a conduction state of the control transistor, the control transistor is used for conducting or turning off according to the gate voltage, and the battery protection circuit board is used for charging or discharging a battery when the control transistor is conducted. According to the battery protection circuit board of the invention, charging or discharging of the battery is realized through the control transistor integrated on the control chip, the area of the circuit board is reduced, and the productioncost is reduced.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of integrated circuits, and in particular to a battery protection circuit board. Background technique [0002] With the development of integrated circuit technology, the integration of circuit boards is getting higher and higher. [0003] The traditional battery protection circuit board adopts the form of control chip + external MOS tube. The battery voltage is detected by the control chip, and the conduction state of the external MOS tube is controlled according to the battery voltage to control the charge and discharge state of the battery. [0004] However, the structure of placing the MOS tube outside the control chip makes the battery protection circuit board area larger, and in the prior art, two MOS tubes need to be placed outside to realize the control of battery charge and discharge, further increasing the battery protection circuit. board area, and the cost increases. Conte...

Claims

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Application Information

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IPC IPC(8): H02J7/00
CPCH02J7/0013H02J7/0029H02J2207/10
Inventor 崔国庆
Owner SUZHOU XYSEMI ELECTRONICS TECH CO LTD
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