Patent ID: 7009850
Filing Date: 2006-03-07
Classification: H02M,Y02B

Abstract:
1. A power conversion circuit having a power transformer, four semiconductor switching elements connected as a bridge across an input to the power conversion circuit and connected to a primary winding of the power transformer to reverse current through the primary winding, a split secondary winding on the power transformer, a first unidirectional current conducting device connected from one end of the split secondary winding to an inductor, a second unidirectional current conducting device connected from a second end of the split secondary winding to the inductor, the inductor and a connection to an interconnection between two halves of the split secondary winding being connected to an output of the power conversion circuit, an injection voltage source connected to the primary winding of the power transformer for applying an injection voltage to the primary winding in addition to an input voltage to the primary winding via the semiconductor switching elements connected as a bridge.