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This paper presents a compact power control unit (PCU) for hybrid electric vehicles. The authors use silicon carbide (SiC) MOSFET power modules with insulated ceramic substrates, resulting in high thermal conductivity. In addition, direct connection of aluminum-made chassis of a reactor and a capacitor to the heat sink makes it possible to highly release heat generation of them. These two measures...
This paper describes a novel compact model for a SiC-MOSFET. The model is useful to achieve accurate simulation of output characteristics from a linear region to a saturation region, selecting both gate–source voltage and temperature as parameters. In order to construct the model systematically, attention is paid to a physics-based modeling procedure with channel mobility as an adjustable parameter...
This paper describes a fast protection circuit for silicon carbide metal-oxide semiconductor field-effect transistors (SiC MOSFETs) subjected to hard-switching faults (HSFs). In terms of reliability of power converters, the protection of power semiconductors against short-circuit failures is of great concern. The reverse transfer capacitance increases with decreasing drain-source voltage during normal...
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