In circuit of connect to IGBT, the bus bar is employed, which is important way to reduce pass-voltage and mottle inductance.

• 为了减小杂散电感、抑制过电压,本文研究了功率母线的结构,并且应用在与IGBT直接相连的电路中,优化了主电路结构并减小杂散电感、降低过电压。