SEMICONDUCTOR DEVICE CAPABLE OF REDUCING DEVICE LOSS AND DELAY TIME BY INCREASING GATE CURRENT AS MUCH AS THE FIRST PREDETERMINED TIME

摘要

PURPOSE: A semiconductor device is provided to reduce a device loss and a delay time by shortening a time interval between turn on and off of gates of switches in the semiconductor device. CONSTITUTION: A semiconductor device includes a first switch(SWon1) for supplying a gate current during a turn-on operation for turning on the gate of an MOS-type device, and a second switch(SWoff1) for discharging a gate capacitance during a turn-off operation for turning off the gate of the MOS-type device. The semiconductor device further includes a third switch(SWon2) for increasing the gate current, a first timer(14) for turning on and off the third switch after a first predetermined time from turn-on, a fourth switch(Swoff2) for increasing the discharge current during the gate turn-off operation, and a second timer(15) for turning on and off the fourth switch after a second predetermined time from turn-on.