6-in-1 Silicon carbide power module for high performance of power electronics systems

The excellent characteristics (low power loss, high speed/high temperature operation) of SiC semiconductors can contribute to realizing smaller power converter with a higher power output. Using our own packaging technology of double-sided cooling and SiC devices, we have developed the new, small 6-in-1 power module with high output power density. If the inductance of the main circuit is large, it will cause a large surge voltage when switched. Therefore, we have incorporated the optimum low inductance structure into this module, and have made it possible to drive the SiC device at high speed. Using this module, we have built a prototype of inverter unit with 75 kW output power, and have achieved an efficiency of 99% and a power density of 100 kW/L.