By the monitoring of the leakage current, the on-line 380v grid insulation conditions and the off-line insulation resistance can be monitoring in real-time.
This paper introduces the basic requisition, grid driving power, gridresistance and driving circuit modality of the IGBT. Furthermore, introduces the driving module M57962L of the driving circuit.
The circuit model for IGBT simulation is provided. The relationships between IGBT power loss and the switch frequency and between IGBT power loss and gridresistance are presented.