IGBT SHORT-CIRCUIT PROTECTION CIRCUIT AND METHOD, IGBT DRIVER AND IGBT CIRCUIT

摘要

Disclosed are an IGBT short-circuit protection circuit (P) and method, an IGBT driver and an IGBT circuit. The IGBT short-circuit protection circuit (P) comprises: a driving current detection unit (1) used for detecting a driving current flowing through an IGBT gate; a comparison unit (2) used for comparing the driving current with a reference current and outputting a comparison resu and a protection unit (3) used for determining whether to start short-circuit protection for an IGBT according to the comparison result. By detecting the driving current flowing through the IGBT, the self-locking of an IGBT driving circuit is controlled so as to improve the reliability of the short-circuit protection for the IGBT.