开关电源保护电路的研究与设计  

Research and Design of Switching Power Supply Protection Circuit

作　　者：朱丽红 ZHU Li-hong(No.43 Research Institute of CETC,Hefei 230088,China)

机构地区：[1]中国电子科技集团公司第四十三研究所,合肥230088

出　　处：《混合微电子技术》2020年第4期21-24,共4页Hybrid Microelectronics Technology

摘　　要：为了保证开关电源的高可靠性要求,需要在电路内部增加相应的保护电路。本文对比了常用的过流保护、欠压保护和软启动电路方案,并针对不同电路进行了保护电路优缺点的比较,最后通过模拟实验验证了保护电路的有效性,给出相应的实验结果。In order to ensure the high reliability of switching power supply,it is necessary to add corresponding protection circuit inside the circuit.This paper compares the common over-current protection,under voltage protection and soft start circuit schemes,and compares the advantages and disadvantages of different protection circuit.Finally,the effectiveness of the protection circuit is verified by simulation experiments,and the corresponding experimental results are given.

关 键 词：过流保护 欠压保护 软启动 

分 类 号：TN86[电子电信—信息与通信工程]