Patent ID: 8625312
Filing Date: 2014-01-07
Classification: H02M

Abstract:
1. A switching circuit for use in a power converter, comprising: a first active switch coupled between a first terminal of an input of the power converter and a first terminal of a primary winding of a transformer; a second active switch coupled between a second terminal of the input of the power converter and a second terminal of the primary winding of the transformer, wherein an output capacitance of the first active switch is greater than an output capacitance of the second active switch; a first passive switch coupled between the second terminal of the primary winding of the transformer and the first terminal of the input of the power converter; and a second passive switch coupled between the second terminal of the input of the power converter and the first terminal of the primary winding, wherein a reverse recovery time of the first passive switch is greater than a reverse recovery time of the second passive switch.