SYXETC is customized high-power SMPS experts providing you with excellent & stable solutions!
管家婆辉煌版

Shenzhen SYXTEC Technology Co., LTD
One-Stop Solution for HV DC-DC Converters!

管家婆辉煌版
Power knowledge

Power knowledge

Your Current Location : Home News Power knowledge

电池保护板的工作原理

Source: Time:2021-09-13 07:44:56 views:

当电池通过充电器正常充电时,随着充电时间的增加,电芯的电压将越来越高,当电芯电压升高到4.4V时,DW01 将认为电芯电压已处于过充电电压状态,便立即断开第3脚的输出电压
 当电池通过充电器正常充电时,随着充电时间的增加,电芯的电压将越来越高,当电芯电压升高到4.4V时,DW01 将认为电芯电压已处于过充电电压状态,便立即断开第3脚的输出电压,使第3脚电压变为0V,8205A内的开关管因第4脚无电压而关闭。此时电芯的B-与保护板的P-之间处于断开状态。即电芯的充电回路被切断,电芯将停止充电。保护板处于过充电状态并一直保持。等到保护板的P 与P-间接上放电负载后,因此时虽然过充电控制开关管关闭,但其内部的二极管正方向与放电回路的方向相同,故放电回路可以进行放电,当电芯的电压被放到低于4.3V时,DW01 停止过充电保护状态重新在第3脚输出高电压,使8205A内的过充电控制管导通,即电芯的B-与保护板P-又重新接上,电芯又能进行正常的充放电.

Shenzhen Shengyuxiang Technology Co., Ltd. is a high-tech enterprise specializing in the R&D and sales of DC high-voltage power supply, photovoltaic power supply, UAV power supply, customized power supply and other power products. Based on independent research and development.

Customer service department

  • Manager Luo管家婆辉煌版
  • Miss Li管家婆辉煌版
  • Engineer Luo管家婆辉煌版
管家婆辉煌版

Scan your attention

13418698189