70 kHz, 15 kW silicon-carbide MOSFET inverter for industrial induction heating systems

This paper discusses the applicability of SiC MOSFET to high-frequency induction heating applications. In this paper, a 15-kW, 70-kHz SiC MOSFET inverter prototype is constructed to evaluate the performance of the SiC MOSFETs. Power loss breakdown is also conducted from the experimental results. As a results, the inverter prototype has exhibited a power conversion efficiency as high as 98.5% at the rated power operation, and demonstrated the possibility of applications of SiC MOSFETs to high-frequency induction heating systems.