Requirements to change from IGBT to Full SiC modules in an on-board railway power supply

In this paper the difference in switching characteristic and switching losses together with the effects of parasitic elements between silicon and silicon-carbide devices on the loss distribution are reviewed. A comparison between a standard silicon IGBT module and a Full SiC MOSFET module is being made on the basis of equal voltage overshoot and maximum switching speed of both devices. Potentials and limitations between the both devices are discussed for the use of Full SiC power module in on-board power supplies for railway application.