CPC H02M 3/33569 (2013.01) [H02J 7/06 (2013.01); H02M 1/4241 (2013.01)] | 17 Claims |
1. A resonant converter device for varying resonant impedance, comprising:
a selectable primary winding comprising a plurality of circuit legs, the selectable primary winding comprising one or more of a tapped primary winding or a plurality of switchable primary windings;
at least one secondary winding coupled to the selectable primary winding to form a resonant transformer, the at least one secondary winding comprising at least a second circuit leg;
at least one resonant inductor coupled to at least one of the plurality of circuit legs or coupled to the second circuit leg;
a plurality of resonant capacitors, each circuit leg of the plurality of circuit legs comprising at least a respective one of the plurality of resonant capacitors coupled within the each circuit leg, and at least a second resonant capacitor of the plurality of resonant capacitors coupled within the second circuit leg; and
one or more switching devices connected to the resonant transformer and configured to selectively vary a resonant impedance of the resonant converter device when a voltage inputted to the resonant converter device varies.
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