公开(公告)号：US11574766B2

公开(公告)日：2023-02-07

申请号：US16851880

申请日：2020-04-17

Applicant: Analog Devices International Unlimited Company

Inventor： Xinyu Liang ,  Jonathan Paolucci ,  Leonard Shtargot

IPC: H05K1/16 ,  H01F27/28 ,  H01F27/24 ,  H01F29/02

Abstract: A space efficient planar transformer can include a coupled inductor circuit that can include a metallic core, a first planar winding comprising a conductive coil having an electrical path encircling a first post of the metallic core, and a second planar winding configured to magnetically couple with the first winding via the metallic core. The second planar winding can have multiple portions. A portion of the second winding can include a first sub-portion comprising a single U-shaped planar conductive trace wrapped about the first post and a second sub-portion comprising a single U-shaped planar conductive trace wrapped about the first post. A layout of the first sub-portion can be oriented opposite a layout of the second sub-portion.

公开(公告)号：US20210327634A1

公开(公告)日：2021-10-21

申请号：US16851880

申请日：2020-04-17

Applicant: Analog Devices International Unlimited Company

Inventor： Xinyu Liang ,  Jonathan Paolucci ,  Leonard Shtargot

IPC: H01F27/28 ,  H01F27/24 ,  H05K1/16

Abstract: A space efficient planar transformer can include a coupled inductor circuit that can include a metallic core, a first planar winding comprising a conductive coil having an electrical path encircling a first post of the metallic core, and a second planar winding configured to magnetically couple with the first winding via the metallic core. The second planar winding can have multiple portions. A portion of the second winding can include a first sub-portion comprising a single U-shaped planar conductive trace wrapped about the first post and a second sub-portion comprising a single U-shaped planar conductive trace wrapped about the first post. A layout of the first sub-portion can be oriented opposite a layout of the second sub-portion.