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Issues during turn off of SiC MOSFET C3M0120090D in Asymmetrical Half-Bridge converter

Kalpak
Kalpak Contributor Level 1
edited May 2024 in Discrete Products

Hello,

I am trying to make Asymmetrical Half-bridge converter using two SiC MOSFETs(C3M0120090D) and two diodes. I am getting ambiguous waveform of drain-source voltage, load current and load voltage during turn-off period. During turn-off, load current is getting higher and then settling to zero. There is overshoot in Vds also. I am not able to understand why this kind of waveform is coming.

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