Optical control of 1200-V and 20-A SiC MOSFET

High-frequency characterization of an all-optical integrated 1200-V and 20-A SiC MOSFET driven by low-voltage GaAs optically-triggered power transistors (OTPTs) and realized in a high-temperature hybrid package is demonstrated in this paper. Experimental characterization results on the optical device are provided at device and converter levels. For the latter, a simple non-isolated 0.5 MHz boost converter was designed and implemented using the hybrid optical device. The device exhibits good switching performance and promise for high-frequency applications.