单片机与嵌入式系统应用2025，Vol.25Issue(10)：61-65,5.DOI:10.20193/j.ices2097-4191.2025.0050
一种具有不可恢复的过流保护电路设计
Design of an irreversible overcurrent protection circuit
唐俊 1徐立浩 1王喆 1张心静 1李晨洋1
作者信息
- 1. 西安石油大学电子工程学院,西安 710065
- 折叠
摘要
Abstract
To meet the requirements of overcurrent protection for industrial equipment,a modular design-based electronic circuit solution is proposed,aiming to achieve precise current detection and rapid protection response.The modular design architecture integrates cur-rent sensing amplifier,hysteresis comparator and relay to function collaboratively.The current sensing amplifier is used to achieve signal acquisition with 0.1 mA level accuracy,the hysteresis comparator is used to set the protection threshold,and the solid-state relay is used to control the circuit's on-off.The experimental results show that when the current exceeds the set threshold,the circuit completes the disconnection action within 10 ms,and remains open even when the threshold current drops below the threshold,thereby avoiding false recovery.After multiple cycle tests,the protection action accuracy rate reaches 98.4％,effectively eliminating potential damage to the equipment caused by multiple overcurrents.This study provides an innovative solution for high-precision current protection in industrial applications.关键词
过流保护/模块化设计/电流感应放大器/切断电流通路/保持短路状态Key words
overcurrent protection/modular design/current sensing amplifier/cut off the current path/maintain short-circuit state分类
信息技术与安全科学引用本文复制引用
唐俊,徐立浩,王喆,张心静,李晨洋..一种具有不可恢复的过流保护电路设计[J].单片机与嵌入式系统应用,2025,25(10):61-65,5.
