High current DC-DC converter with integrated matrix transformer and multiphase current doubler rectifier
AssigneeVirginia Tech Intellectual Properties, Inc.
InventorsXin Lou, Qiang Li, Fred C. Lee
Life of this patent
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Abstract
Aspects of direct current (DC)-DC converters with an integrated matrix transformer and multiphase current doubler rectifiers are described. In some examples, a DC-DC converter can include a matrix transformer that has multiple magnetically integrated transformer components that are magnetically integrated using transformer components that share a top plate and a bottom plate. A multiphase current doubler rectifier can include multiple synchronous rectifiers corresponding to the plurality of transformer components of the matrix transformer.
Claims20
A direct current (DC)-DC converter comprising:
- a pulse width modulation (PWM) inverter that generates an alternating current (AC) voltage;
- a matrix transformer comprising a plurality of transformer components, wherein:
- a transformer component among the plurality of transformer components comprises a split primary winding and a plurality of secondary windings, and the split primary winding comprises a first partial primary winding wound on a first winding leg of the transformer component with a first secondary winding, and a second partial primary winding wound on a second winding leg of the transformer component with a second secondary winding;
- and
- a multiphase current doubler rectifier comprising a plurality of synchronous rectifiers corresponding to the plurality of transformer components of the matrix transformer.
A matrix transformer for a direct current (DC)-DC converter, the matrix transformer comprising:
- a plurality of magnetically integrated transformer components comprising a transformer component that shares a top plate and a bottom plate with at least one additional transformer component of the matrix transformer;
- a split primary winding comprising:
- a first partial primary winding wound on a first winding leg of the transformer component, and a second partial primary winding wound on a second winding leg of the transformer component;
- a first secondary winding that is wound on the first winding leg with the first partial primary winding;
- and
- a second secondary winding that is wound on the second winding leg with the second partial primary winding, wherein the first secondary winding and the second secondary winding are connected to a synchronous rectifiers of a multiphase current doubler rectifier comprising a plurality of synchronous rectifiers corresponding to the plurality of magnetically integrated transformer components.
A direct current (DC)-DC converter comprising:
- a pulse width modulation (PWM) inverter that generates an alternating current (AC) voltage;
- a matrix transformer comprising a plurality of magnetically integrated transformer components comprising a transformer component that shares a top plate and a bottom plate with at least one additional transformer component of the matrix transformer;
- and
- a multiphase current doubler rectifier comprising a plurality of synchronous rectifiers corresponding to the plurality of magnetically integrated transformer components of the matrix transformer.
Dependencies are inferred from the claim text.