This paper describes the determination of interelectrode capacitances of a fast switching high voltage super junction transistor from dynamic measurements in a commutation circuit with a SiC Schottky diode. The gained capacitance voltage characteristics reflect the transistor's effective parasitic capacitances during switching for the given application. Thus, these characteristics are used for the transistor's parameterization within a buck converter simulation model. The resulting switching simulation characteristics of the transistor correspond virtually with the appendant dynamic measurements.
Published in:
Power Electronics and Applications, 2009. EPE '09. 13th European Conference on
Date of Conference: 8-10 Sept. 2009