fasTrip: short circuit and high current protection

fasTrip (fast trip) short circuit and high current protection circuit for AC 230V. If a PCB / device under testing is connected to AC 230V through fasTrip, the IGBT/MOSFET/capacitors etc in the PCB will not damage if there is an error in wiring/assembling. Fuse / MCB cannot protect IGBT/MOSFET because these active components will fail before the fuse/MCB can protect it.