一种实验仪过流保护电路的设计  

A Design of Overcurrent Protection Circuit for Experimental Devices

作　　者：苏峻[1] 王梓源 余观夏[1] SU Jun;WANG Ziyuan;YU Guanxia(College of Science,Nanjing Forestry University,Nanjing 210037,China)

机构地区：[1]南京林业大学理学院

出　　处：《大学物理实验》2019年第6期84-87,共4页Physical Experiment of College

基　　金：2018年南京林业大学自制实验教学仪器项目(nlzzyq201819)

摘　　要：设计了一种以晶闸管为主控元件的过流保护电路,介绍了电路的工作原理,并对其限流值和保护延迟时间进行了实验和分析。电路简单有效,灵敏度、可靠性和稳定性高,可用于各种电学实验仪器的过流和短路保护。An overcurrent protection circuit using a thyristor as the main control component was designed.The working principle was introduced,and the current limiting value as well as the protection delay time were tested and analyzed.The circuit is simple and effective,meantime with high sensitivity,reliability and stability.It can be applied in various electrical experimental devices for over current and short circuit protection.

关 键 词：过流保护电路 晶闸管 整流滤波 延迟电路 

分 类 号：TM862[电气工程—高电压与绝缘技术]