| 摘要 |
PROBLEM TO BE SOLVED: To provide a drive circuit for a drive object switching element which can prevent the deterioration of reliability of a switching element S¥# caused by switching to an off state of the switching element S¥# not carrying out a soft interruption processing when the excess current flows into the switching element S¥#.SOLUTION: In a drive circuit DU, a diode 27 in which a gate side is used as the cathode and a path for clamp Lclamp side is used as the anode, is provided on a charge path Lcha. In a state that the collector current Ic decreases, the charge path Lcha and a main current flow path connected to the collector are magnetically coupled to each other so that gate charges move to the path for clamp Lclamp side in the charge path Lcha. |
