| 摘要 |
PROBLEM TO BE SOLVED: To provide a gate drive circuit that implements stable drive by suppressing the generation of a spike voltage when turning on a semiconductor switching element.SOLUTION: The gate drive circuit for applying an on voltage and an off voltage to a gate terminal of a semiconductor switching element 20 includes: negative bias application means (capacitors C, C) for applying a negative bias for turning off the semiconductor switching element to the gate terminal; and short-circuiting switching means (switch circuit having power MOSFETs Q, Q) for switching a connection to establish a short circuit between the gate terminal and a source terminal when turning on the semiconductor switching element. |
