摘要
过流保护电路是参照GB3836.4-2010和MT/T408-1995标准,采用高边电流检测技术,加以电流限定值设定和延时开通技术实现电路短路保护。经理论分析、计算和实际短路实验测试,本产品可有效抑制短路火花能量,从而可广泛应用于煤矿本质安全电源等领域。本过流保护电路具有电路简单,响应速度快,自恢复和低功耗等优点。
According to the Reference GB3836. 4-2010 and MT /T408-1995 standard,over-current protection circuit is designed. The high-side current detection technology assisting with current limit setting and delay opening technology was applied to realize the short-circuit protection. The over-current protection circuit has several advantages,such as simple circuit,fast response speed,self-recovery and low power consumption. The results of short-circuit experiment show that this product can suppress the shorted spark energy effectively. It can be widely used in the intrinsical safety and the power supply of coal mine.
出处
《太原科技大学学报》
2014年第5期344-347,共4页
Journal of Taiyuan University of Science and Technology
基金
国家大学生创业计划(201310109002)
关键词
高边电流检测
火花能量抑制
短路保护
本质安全
high side current detection
the spark energy suppression
short-circuit protection
intrinsical safty
