Patent ID: 8670259
Filing Date: 2014-03-11
Classification: H02M

Abstract:
1. A current source power conversion circuit, provided with a plurality of half-bridge rectifier circuits which are connected in parallel, each comprising a serial connection of a first switch circuit having a first self-turn-off element and a first diode which are connected in series to each other and a second switch circuit having a second self-turn-off element and a second diode which are connected in series to each other, wherein forward directions of said first self-turn-off element, said first diode, said second self-turn-off element, and said second diode are made uniform in the same direction in any of said half-bridge rectifier circuits, each said first self-turn-off element has a first current electrode, a second current electrode, and a control electrode, and is turned on and off based upon a control signal given to said control electrode, a reference of said control signal being a potential of said first current electrode, said second current electrode of said first self-turn-off element is connected to said first diode in any of said half-bridge rectifier circuits, and a first current electrode of said first self-turn-off element in one of said half-bridge rectifier circuits and a first current electrode of said first self-turn-off element in other one of said half-bridge rectifier circuits are short-circuited and connected.