Design of IGBT Drive and Protection Based on M57962AL

Aiming at the anti-interference performance requirements of high-power IGBT drive circuit in active power filter, this paper designs IGBT drive and protection circuit based on M57962AL chip. The voltage change of VCE is detected by two diode series resistors to the chip. Combined with the output characteristic curve of IGBT, the threshold of IGBT short circuit protection current can be set by adjusting the resistance value. The operation experiment of active power filter shows that the design can effectively maintain the stability of the fault output signal, so it has stronger anti-interference performance and improves the reliability of IGBT short-circuit protection.