INVERTER DEVICE, ELECTRIC MOTOR DRIVE DEVICE, REFRIGERATION/AIR-CONDITIONING DEVICE, AND ELECTRIC POWER GENERATION SYSTEM

摘要

An inverter device, a motor driving device, a refrigerating air conditioner, and a power generation system, which can reduce the recovery loss thereof, are obtained. A plurality of arms 4 that can conduct and block current are provided. At least one of the plurality of arms 4 includes: a plurality of switching elements each having a parasitic diode and being connected in series with each other; and a reverse current diode 9 connected in parallel with the plurality of switching elements.