公开(公告)号：US20220310303A1

公开(公告)日：2022-09-29

申请号：US17211975

申请日：2021-03-25

Applicant: VIRGINIA TECH INTELLECTUAL PROPERTIES, INC.

Inventor： Shuo Wang ,  Fred C. Lee ,  Qiang Li

IPC: H01F27/28 ,  H01F27/24 ,  H01F27/34 ,  H02M1/42

Abstract: Various examples of systems and methods for a coupled inductor winding structure for common-mode noise reduction is described herein. The coupled inductor structure can include a magnetic core including a first leg, a second leg, and a center leg; and a planar winding structure. The planar winding structures can include a first inductor winding for a forward path of a first phase of a power converter; a second inductor winding for a forward path of a second phase of the power converter; a third and fourth inductor winding for a return path. The third inductor winding having at least one turn interleaved within the number of first leg turns of the first inductor winding and configured to achieve unity coupling. The fourth inductor winding having at least one turn interleaved within the number of second leg turns of the second inductor winding and configured to achieve unity coupling.