Remarkable advances in SiC power device technology for ultra high power systems

This paper reports our recent results on high voltage and large current SiC power devices and power modules for high power applications. A railcar traction inverter system equipped with 1200A/1700V SiC hybrid modules exhibits great advantages in size, weight and power consumption compared to a conventional Si inverter system. Reliability of SiC-MOSFETs and characteristics of large current 1200V and 3300V SiC-MOSFETs are also presented and discussed.