Patent ID: 9584047
Date: 2017-02-28
CPC Classifications: H02M

Claim:
1. A bidirectional power converter comprising: a H-bridge circuit including: a DC interface including a positive DC terminal and a negative DC terminal; a first H-bridge leg coupled across the DC interface, the first H-bridge leg including a first switching circuit controlled by a first switching signal, and a second switching circuit coupled to the first switching circuit in series and controlled by a second switching signal; and a second H-bridge leg coupled across the DC interface, the second H-bridge leg including a third switching circuit controlled by a third switching signal, and a fourth switching circuit coupled to the third switching circuit in series and controlled by a fourth switching signal; and a cyclo-inverter circuit electrically coupled to the H-bridge circuit, the cyclo-inverter circuit including; an AC interface including a first AC line terminal and a second AC line terminal; a first cyclo-inverter leg including a fifth switching circuit controlled by a fifth switching signal, and a sixth switching circuit coupled to the fifth switching circuit in series and controlled by a sixth gating signal, wherein the first AC line terminal is coupled between the fifth switching circuit and the sixth switching circuit, and wherein in a charger mode of operation, the duty cycles of the fifth switching signal and the sixth switching signal are varied; and a second cyclo-inverter leg including a seventh switching circuit controlled by the sixth gating signal, and an eight switching circuit coupled to the seventh switching circuit in series and controlled by the fifth switching signal, wherein the second AC line terminal is coupled between the fifth switching circuit and the sixth switching circuit.