FULL-BRIDGE INVERTER WITH UNIPOLAR SWITCHING SCHEME AND ITS METHOD OF OPERATION

A full-bridge inverter based on a unipolar switching scheme comprises a first branch and a second branch in parallel between a first DC node and a second DC node, the first branch comprising a first higher switch and a first lower switch in series, and the second branch comprising a second higher switch and a second lower switch in series. A filter circuit comprises a first inductor and a second inductor. One pin of the first inductor is coupled with a first branch conductor, and the first branch conductor is coupled between the first higher switch and the first lower switch, and an opposite pin of the first inductor is electrically coupled with a first output node. One pin of the second inductor is coupled with a second branch conductor, the second branch conductor is coupled between the second higher switch and the second lower switch, and an opposite pin of the second inductor is coupled with a second output node of the full-bridge inverter. A first filtering unit switch, a first filter diode, a second fil