POWER CONVERSION APPARATUS

摘要

In a power conversion apparatus, a first switch is connected in series with a do capacitor between P and N terminals of a do circuit. The first switch is formed of a switched valve device and a diode connected in reverse parallel with each other. The switched valve device of the first switch and switched valve devices used in individual arms of a second power converter are voltage-driven switched valve devices. An on-gate voltage of the switched valve device of the first switch is made lower than an on-gate voltage of the switched valve devices of the second power converter.