基于峰值杂散栅极电流的高功率晶闸管局部结温在线监测

The nonuniform current distribution in high-power thyristors leads to a significant rise in local junction temperature (Tlj), potentially threatening the reliability of high-power thyristors. For online monitoring Tlj, a novel temperature-sensitive electrical parameter method was proposed based on peak stray gate current (ipsg). First, simplified turn-off models for high-power thyristors with an a...