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This paper focuses on the design of a snubber circuit for Solid State Circuit Breaker (SSCB) based on SiC MOSFET. It analyzes the operation principle and pros and cons of existing snubber circuit.

If the load is inductive, an RC snubber circuit may be needed to protect the SSR from voltage spikes. The design must consider the voltage and current requirements of the load being controlled.

This method suppresses SiC MOSFET voltage overshoot through adjustment of switching speed and the utilization of snubber capacitance, and it employs the design of RC and dual-RCD snubber circuits to ...