Patent ID: 7480156

Claim:
A power conversion network having two operating states, and having a first terminal, a second terminal, and a third terminal, comprising, a first circuit branch having a first terminal and a second terminal with said first terminal of said first circuit branch connected to said first terminal of said power conversion network, comprising, first switch means, a second circuit branch connected in series with said first switch means comprising, second switch means operated substantially in anti-synchronization to said first switch means, a series network connected in parallel to said second switch means, wherein a voltage applied to said series network is equal to a voltage applied to said second switch means, comprising, a first capacitor, a first winding of a coupled inductor, wherein a current in said first capacitor is equal to a current in said first winding of said coupled inductor, third switch means having a first terminal and a second terminal with said first terminal of said third switch means connected to said second terminal of said power conversion network and with said second terminal of said third switch means connected to said second terminal of said first circuit branch, operated substantially in anti-synchronization to said first switch means, a second winding of said coupled inductor having a first terminal and a second terminal with said first terminal of said second winding of said coupled inductor connected to said third terminal of said power conversion network and said second terminal of said second winding of said coupled inductor connected to said second terminal of said first circuit branch, whereby said terminals of said power conversion network are connected to an input source of dc voltage and power, an output load, and a return common to both said input source of dc voltage and power and said output load to form a complete power conversion circuit.