Abstract: A DC/DC resonant converter system includes a primary converter unit having a split resonant tank circuit. The resonant converter unit further includes a plurality of primary switching units that control the current flowing into the split resonant tank circuit. A controlled secondary rectifier unit includes a plurality of rectifier switching units to reduce reactive power in the primary converter unit. A phase-shift controller is in electrical communication with the primary converter unit and the controlled secondary rectifier unit. The phase-shift controller is configured to determine a rectifier phase-shift angle based on the plurality of primary switching units and to control switching of the plurality of rectifier switching units based on the rectifier phase-shift angle.

Abstract: A DC/DC resonant converter system includes a primary converter unit having a split resonant tank circuit. The resonant converter unit further includes a plurality of primary switching units that control the current flowing into the split resonant tank circuit. A controlled secondary rectifier unit includes a plurality of rectifier switching units to reduce reactive power in the primary converter unit. A phase-shift controller is in electrical communication with the primary converter unit and the controlled secondary rectifier unit. The phase-shift controller is configured to determine a rectifier phase-shift angle based on the plurality of primary switching units and to control switching of the plurality of rectifier switching units based on the rectifier phase-shift angle.

Abstract: An embedded core electrical transformer (120) for DC to DC current conversion at a switching frequency of 1 MHz has reduced volume and weight with increased power density. The electrical transformer (120) utilizes a plurality of conductive elements (132) disposed inside a hollow cavity (128) used to embed two magnetic cores (134, 136). The conductive elements (132) encircle three sides of the embedded cores (134, 136) and interface with a multilayer PCB (137) which includes conductive traces formed therein to encircle a fourth side of the embedded cores and to form primary and secondary winding circuits.