IGBT IGBT DRIVING CIRCUIT

摘要

The present invention relates to a reference voltage variable type IGBT driving circuit in which a reference voltage set for protection of an IGBT device is designed to be variable, a driving circuit for amplifying an input signal for controlling a switching operation of an IGBT device, and a collector of the IGBT device and a protection circuit for selectively blocking the input signal by comparing a voltage with a reference voltage, and a reference voltage variable circuit for variably setting the reference voltage according to a capacity of an IGBT element or a size of a load.