Gate driving circuit for semiconductor device, has voltage system-power supply circuit for connection between power supply terminal and battery, where circuit supplies output voltage not lower than set value at side of integrated circuit

摘要

The circuit has a battery (1) to supply power supply voltage, and a gate driver-integrated circuit (IC) (4) for driving a gate of a semiconductor device. A power supply terminal (4a) is arranged at a side of the IC. A voltage system-power supply circuit (11) is arranged for a connection between the power supply terminal and the battery. The circuit (11) supplies output voltage not lower than a set value at the IC side.