Patent ID: 9712076
Date: 2017-07-18
CPC Classifications: H02M

Claim:
1. A power converter, comprising: a plurality of input lines applied with a first polyphase AC voltage; a plurality of capacitors interposed between ones of said plurality of input lines; a first DC power supply line; a second DC power supply line applied with a lower potential compared with said first DC power supply line; a converter comprising: a clamp capacitor connected between said first and second DC power supply lines; an inverter configured to convert a voltage between said DC power supply lines into a second polyphase AC voltage to be outputted via a plurality of output lines; and a controller configured to selectively supply said signals to said switch parts, wherein a voltage across said clamp capacitor serves as a sole operation power supply for said controller, and said clamp capacitor serves as a sole capacitor connected between said first and second DC powers supply lines and between said converter and inverter.