摘要
目前已有智能电能表采用开关电源,开关电源存在抗雷击浪涌能力弱的缺点。本文对现有智能电能表开关电源电路加以改进,增加一条电压保护电路,其响应速度快于现有电压、电流保护电路,能对开关电源进行很好的保护。
Switch power supply is used in smart meter,and it has the disadvantage of weak lightning surge resistance.In this paper,the switch power supply circuit of smart meter was improved by adding a voltage protection circuit.Its re?sponse speed was faster than the current and voltage protection circuit,which could protect the switch power supply well.
作者
王少俊
李香
WANG Shaojun;LI Xiang(Yangzhou Baoer Electronics Co.,Ltd.,Yangzhou Jiangsu 225000;Yangzhou Wantai Electronic Technology Co.,Ltd.,Yangzhou Jiangsu 225000)
出处
《河南科技》
2019年第31期56-58,共3页
Henan Science and Technology
关键词
智能电能表
开关电源
雷击浪涌
保护电路
smart meter
switching power supply
lightning surge
protection circuit
