| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a gate drive circuit of a voltage-controlled switching element in which occurrence of malfunction can be minimized while suppressing the surge voltage/surge current and switching noise, when switching the voltage-controlled switching element. <P>SOLUTION: The gate drive circuit which drives a voltage-controlled switching element 2 by supplying a gate voltage to the gate thereof comprises a high potential side switching element M1 and a low potential side switching element M2 connected in series, first variable resistors VR11, VR12 inserted either between the high potential side switching element M1 and a high potential power supply and/or between the low potential side switching element M2 and a low potential power supply, and a control circuit 4 which adjusts the resistance of the first variable resistors VR11, VR12. <P>COPYRIGHT: (C)2013,JPO&INPIT |
