An Improved Compact Model for a Silicon-Carbide MOSFET and Its Application to Accurate Circuit Simulation

作者：Mukunoki Yasushige; Konno Kentaro; Matsuo Tsubasa; Horiguchi Takeshi; Nishizawa Akinori; Kuzumoto Masaki; Hagiwara Makoto; Akagi Hirofumi

来源：IEEE Transactions on Power Electronics, 2018, 33(11): 9834-9842.

DOI：10.1109/TPEL.2018.2796583

• MOSFETs
• semiconductor device modeling
• switching transients

This paper presents an improved compact model for a discrete silicon-carbide (SiC) MOSFET. This compact model based on the previous model features a new behavioral model of output characteristics and new nonlinear models of internal capacitors. Simulation with the improved compact model is in better agreement with measurement than that with the previous compact model, as well as transient behavior of the drain-source voltage, the drain current, and the leakage current out of a heatsink. Furthermore, the improved model is useful for constructing the accurate compact model that can reproduce the high-frequency characteristics of the transient waveforms of SiC-MOSFETs. This successful validation indicates that the improved compact model would be a promising tool for a full-simulation-based design system of the power converters using SiC-MOSFETs.

• 出版日期2018-11