Patent ID: 8451638

Claim:
A power converter configured to transfer power between a direct current (DC) voltage source and an alternating current (AC) load, the power converter comprising: a first switch electrically coupled to a DC voltage source; a second switch electrically coupled to the DC voltage source; a third switch electrically coupled to the DC voltage source; a fourth switch electrically coupled to the DC voltage source; a first series diode coupled to the third switch and an AC load; a second series diode coupled to the fourth switch and the AC load; a first recovery diode electrically coupled in parallel to the first series diode and the third switch, and configured to conduct an output current when the first switch is in an “off” state; and a second recovery diode electrically coupled in parallel to the second series diode and the fourth switch, and configured to conduct the output current when the second switch is in an “off” state.