Abstract
Considering the switching frequency limit and electromagnetic interference, the selection of high voltage SiC IGBT and SiC MOSFET is confusing due to punch-through effect and bipolar characteristics of SiC IGBT. The thermal resistance, static characteristics and dynamic characteristics of SiC IGBT and SiC MOSFET module with Press-Pack packaging are measured to evaluate the switching frequency limit and electromagnetic interfere of them. The tradeoffs of SiC IGBT between switching frequency limit and electromagnetic interfere are less attractive due to the intrinsic characteristics, such as high power loss and punch-through effect. The possible solutions for SiC IGBT are proposed based on the improvement of driving resistor and driving voltage.
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