Enhancing Si MOSFET Reliability: Short-Circuit Protection Design, Analysis, and Experimental Validation

Inverters are critical parts in two-stage isolated DC-DC converters, and the reliability of their switches is paramount. This paper investigates the common short-circuit faults in inverters through experimental trials, specifically focusing on the withstand time of the Si MOSFET switches under fault conditions. Additionally, the study involves the practical implementation of a protection system aimed at safeguarding against short-circuit faults. The results provide important insights to enhance the reliability and safety of inverter systems, offering practical improvements for power electronics.