一种新型晶闸管阳极触发电路  

A New Type of Thyristor Anode-trigger Circuit

作　　者：熊凯 许正望[2] 

机构地区：[1]武汉加多宝饮料有限公司,武汉430056 [2]湖北工业大学电气与电子工程学院,武汉430068

出　　处：《船电技术》2015年第9期8-10,共3页Marine Electric & Electronic Engineering

摘　　要：针对晶闸管触发电路中脉冲变压器或隔离电源成本高、体积大的问题,参考传统阳极触发电路,提出一种以恒流二极管代替限流电阻的阳极触发驱动电路方案,分析证明新方案具有成本、体积和功耗方面的优点,但也有可能触发不够准确的缺点,该方案可应用于一些成本或体积敏感而触发要求不高的场合。In thyristor triggering circuits, the pulse transistors or the isolating power sources are expensive and occupy a lot of room. Refer to traditional anode-trigger circuits, a new anode-trigger circuit is proposed, in which the current limiting resistor is replaced by a constant current diode. According to the analysis, the new design has advantages of lower cost, smaller bulk and lower dissipation. However, it has a shortcoming of not good triggering performance. The circuit can be used in some applications that the triggering performance is required highly from the cost and the size.

关 键 词：晶闸管 阳极触发 恒流二极管 

分 类 号：TN342[电子电信—物理电子学]