Patent ID: 7864549
Filing Date: 2011-01-04
Classification: H02M,Y02B

Abstract:
1. A coupled inductor boost power converter, comprising, a first coupled inductor having a magnetically permeable core having substantial energy storage capability, having a primary winding and a secondary winding, said windings being mutually magnetically coupled, wherein said primary winding has a dotted terminal and an undotted terminal and said secondary winding has a dotted terminal and an undotted terminal, a second inductance connected in series with said first coupled inductor, a primary circuit network comprising, a secondary circuit network comprising, whereby substantial net energy is transferred to said secondary circuit network during an on state of said first switch means and substantial net energy is transferred to said secondary circuit network during an off state of said first switch means, the current in said primary winding of said first coupled inductor reverses direction during said off state of said first switch means, and said second inductance contributes energy to reduce the voltage difference between said first terminal of said first switch means and said second terminal of said first switch means during a turn on switching transition of said first switch means.