Patent ID: 8614615
Filing Date: 2013-12-24
Classification: H01F,H02M,Y02B

Abstract:
1. An energy transfer assembly for use in a resonant power converter, comprising: a first winding wound around a bobbin mounted on a magnetic core, the first winding having a first number of layers proximate to a first end along a length of the bobbin, the first winding having a second number of layers proximate to a second end along the length of the bobbin; a second winding wound around the bobbin, the second winding having a third number of layers proximate to the first end along the length of the bobbin, the second winding having a fourth number of layers proximate to the second end along the length of the bobbin, wherein at least a portion of one of the first and second windings overlaps at least a portion of an other one of the first and second windings around the bobbin, wherein a degree of overlap between the first and second windings is non-uniform between the first and second ends along the length of the bobbin such that a ratio of the first number to the third number does not equal a ratio of the second number to the fourth number; and a common mode noise cancellation circuit including: