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SiC CAB006A12GM3 MOSFET keeps heating up

ankitdesh92
ankitdesh92 Contributor Level 1
edited September 2024 in Module Products

I am building an ANPC Inverter with 3 SiC MOSFET Module CAB006A12GM3 .I am switching one half bridge(SiC Module) at a higher switching frequency of 25kHz using half bridge gate driver CGD1700HB2M-UNA gate driver. I am checking the temperature using inbuilt NTC Sensor. It was observed that the high switching frequency MOSFET was getting way hotter than expected even when no load was connected at the output of ANPC Inverter and the NTC reading in kohm kept on reducing indicating the temperature of MOSFET is not stable. Please let me know, if you have any suggestions for the MOSFET heating up even at no load and temperature keep on increasing problem?

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