Bidirectional Switching Characteristics Analysis Based on SiC MOSFET

Switching Investigation of SiC MOSFET Based 4-Quadrant Switch

“…Therefore, it is also called as bidirectional switch and is most suitable for converters dealing with alternating current and voltage. Hence, the applications of 4-quadrant switch are AC-AC converters like matrix converters, cycloconverters, Vienna rectifiers, and single-stage solid-state transformers [13], [14]. Although Si-based [15], GaN-based [13], and SiCbased [16] monolithic 4-quadrant switches are present in the literature but are difficult to find commercially.…”

“…Although Si-based [15], GaN-based [13], and SiCbased [16] monolithic 4-quadrant switches are present in the literature but are difficult to find commercially. Therefore, 4-quadrant switches are realisable using discrete 2-quadrant switches like Si IGBTs [17], SiC MOSFETs [14], [18] or SiC JFETs [19] and power diodes, if necessary. Given SiC MOSFETs have major advantages over other devices, they are preferred for a 4-quadrant switch.…”

“…But characteristics under several operating conditions are missing. In [14], the forward and reverse conduction, switching charcateristics of SiC MOSFET of the 4-quadrant switch, and voltage overshoot and oscillations due to parasitic inductances are shown. The authors in [21] also focus on the effect of common-source inductance on the voltage overshoot and oscillations of 4-quadrant switches but none have analysed and shown the trends of turn ON and OFF times of the 4-quadrant switch.…”