| 摘要 |
<p>In a bridge type power converter, one of series-connected semiconductor elements of an inverter bridge is constituted by an MCT (51, 53) having a low-loss characteristic, or substantially constant-voltage characteristic, with a small voltage drop under conduction, and the other semiconductor element is constituted by an IGBT (42, 44) having a constant-current characteristic with a current suppressed in accordance with a drive signal. A failure current is suppressed by a current-suppressing effect of the IGBT and safely interrupted by turning off the MCT and the IGBT. <IMAGE></p> |
