Experimental Investigation of a 10 kV-70A Switch with Six SiC-MOSFETs in a Series-Connection Configuration

In this paper, a prototype of 6 series-connected SiC-MOSFETs for double pulses test purpose is presented. This prototype represents many challenges amongst which the measurements of voltage sharing and the EMI issues due to high dv/dt . High voltage tests are performed up to 8 kV at 65A and voltage balancing, losses and switching speeds are evaluated. Switching speed up to 520 V/ns are recorded.