Patent ID: 8446743

Claim:
An apparatus comprising: a transformer having primary windings and secondary windings, the primary windings of the transformer configured to receive a first multi-phase power signal having a first frequency, wherein the primary windings include, for each phase of the multi-phase power signal, a first primary winding and a second primary winding magnetically coupled in direct phase opposition to the first primary winding; a primary converter configured to generate a second multi-phase power signal having a second frequency at the secondary windings, the second frequency substantially higher than the first frequency, wherein the primary converter includes: a first switch configured to couple together the first primary windings of each phase; and a second switch configured to couple together the second primary windings of each phase; a secondary converter coupled to the secondary windings, the secondary converter configured to provide a load power signal using the second multi-phase power signal; and wherein the secondary converter is configured to reduce current flow in the primary windings at or near a switch event of at least one of the first and second switches of the primary converter, the reduced current flow configured to reduce disturbances from leakage inductance of the transformer.