US 8,797,767 B2 · Resonant power conversion circuit

Abstract

An apparatus and system for power conversion. In one embodiment, the apparatus comprises a transformer having a primary winding and a plurality of secondary windings comprising a first secondary winding, a second secondary winding, and a third secondary winding, the first, the second, and the third secondary windings wound in a tri-filar configuration; and a cyclo-converter comprising a plurality of switch pairs for converting an alternating current to an AC current, each switch pair in the plurality of switch pairs coupled between two lines of an AC output and having a different secondary winding of the plurality of secondary windings coupled between its switches, the plurality of switch pairs comprising a first switch pair, a second switch pair, and a third switch pair, wherein the first, the second, and the third secondary windings are coupled between drain terminals of the first, the second, and the third switch pair, respectively.

Claims7

Dependent claims

An apparatus for power conversion, comprising:

a transformer having a primary winding and a plurality of secondary windings, wherein the plurality of secondary windings comprises a first secondary winding, a second secondary winding, and a third secondary winding, and wherein the first secondary winding, the second secondary winding, and the third secondary winding are wound in a tri-filar configuration;
and
a cyclo-converter comprising a plurality of switch pairs for converting an alternating current to an AC current, wherein each switch pair in the plurality of switch pairs (i) is coupled between two lines of an AC output and (ii) has a different secondary winding of the plurality of secondary windings coupled between its switches, wherein the plurality of switch pairs comprises a first switch pair, a second switch pair, and a third switch pair, and wherein the first secondary winding, the second secondary winding, and the third secondary winding are coupled between drain terminals of the first switch pair, the second switch pair, and the third switch pair, respectively.

A system for power conversion, comprising:

a DC source;
and
a power converter, coupled to the DC source, for converting a DC current from the DC source to an AC current, wherein the power converter comprises (a) a transformer having a primary winding and a plurality of secondary windings, wherein the plurality of secondary windings comprises a first secondary winding, a second secondary winding, and a third secondary winding, and wherein the first secondary winding, the second secondary winding, and the third secondary winding are wound in a tri-filar configuration;
and (b) a cyclo-converter comprising a plurality of switch pairs for converting an alternating current to the AC current, wherein each switch pair in the plurality of switch pairs (i) is coupled between two lines of an AC output and (ii) has a different secondary winding of the plurality of secondary windings coupled between its switches, wherein the plurality of switch pairs comprises a first switch pair, a second switch pair, and a third switch pair, and wherein the first secondary winding, the second secondary winding, and the third secondary winding are coupled between drain terminals of the first switch pair, the second switch pair, and the third switch pair, respectively.

1 more element

Dependencies are inferred from the claim text.

Resonant power conversion circuit

Life of this patent

Resonant power conversion circuit

Life of this patent

Abstract

Claims7