1700V Si-IGBT and SiC-SBD hybrid module for AC690V inverter system

The 1700V/400A hybrid moduleis consisted of Si-IGBTs and SiC- SBDsmounted in a general 2in1 package. Because the reverse recovery current of SiC- SBDis very small to be an unipolar device, reverse recovery and turn-on losses at 400A on the hybrid moduleare 83% and 38% lower than that of the conventional all Si module, respectively. Therefore there is a further advantage of hybrid moduleat high frequency operation. Radiation noise on hybrid modulebecomes higher with increasing collector current, but the peak value of the noise from hybrid moduleis almost same as the all Si moduleif the collector current is less than 300A. In AC690V PWM inverter, the total power dissipation of hybrid moduleis 8% lower at 1 kHz and 29% lower at 10 kHz compare to the all Si module. Therefore the 1700V hybrid moduleis useful as a power modulefor an AC690V high efficiency inverter system such as wind power generation systemand high voltage solar power generation system. This paper reports about the static and dynamic characteristics and the radiation noise measurement results on the 400A/1700V hybrid module.