Identifying and protecting short circuit (SC) and over current (OC) scenarios are critical for high power systems like HEV-EV traction inverters and EV charging and solar inverters system. In high-power systems, SiC FETs or IGBTs are generally used depending upon the power level and switching frequency. This application note discusses the key considerations and design approaches to implement the right protection circuit based on SiC FETs and IGBTs. It walks through the timings involved from detecting the SC/OC event to safe shut-down, the circuit implementation criteria and experiment data for both IGBT and SiC FETs. It summarizes the right protection driver for IGBTs and SiCs based on the released isolated gate drivers from TI.