矿用本安型抗干扰电源缓启动电路设计

Design for Soft Start Circuit of Mine-used Intrinsic Type Anti-interference Power

介绍了一种用于煤矿电气设备的本安型抗干扰电源缓启动电路的设计方案。该电路具有电磁兼容、ia等级安全、电流缓冲击等特性,特别是对浪涌、脉冲群、静电干扰具有明显的抑制效果,同时上电电流缓启动的效果良好,本质安全性高;设计的抗干扰电源缓启动电路适合在煤矿大面积推广使用。

The paper introduces a kind of design scheme for soft start circuit of intrinsic safety type anti-interference power supply used in coal mine electrical equipment. This circuit has the characteristics such as electromagnetic compatibility, ia class safety and current slow shock; in particular, it has obvious inhibitory effect on wave surge, pulse swarm, static interference; at the same time, the power on electric current slow start is good, and the intrinsic safety is high; the designed anti-interference power supply soft start circuit is suitable for widespread use in coal mine.