摘要
在分析门极可关断晶闸管(GTO)和门极换流晶闸管(GCT)门-阴极结构的基础上,依据GCT关断时的换流机理,提出了一种新的GCT门-阴极图形的设计方法.与现有的GCT门-阴极图形相比,用该方法设计的门-阴极图形,在保证开关过程中电流均匀分布的前提下,可增加GCT的有效阴极面积,减小热阻,并提高电流容量.
The gate-cathode structures of gate commutated thyristor （GCT） and gate turn-off thyristors are analyzed. Based on the commutation mechanism of a GCT during turn-off,a new design method for the gate-cathode layout of GCT is presented. Compared with the existing method,the new method increases the effective cathode area of GCT, decrease the thermal resistance, and improve the current capability under the precondition of uniform current distribution during turn-off.
基金
西安理工大学优秀博士生科研基金资助项目~~
