公开(公告)号：US20240186054A1

公开(公告)日：2024-06-06

申请号：US18049491

申请日：2022-10-25

Applicant: Delta Electronics, Inc.

Inventor： Anup ANURAG ,  Chi ZHANG ,  Rudy WANG ,  Zhiyu SHEN ,  Peter BARBOSA

IPC: H01F27/28 ,  H01F27/26 ,  H05K1/16

CPC classification number: H01F27/2804 ,  H01F27/26 ,  H05K1/165 ,  H01F2027/2809 ,  H02M3/335

Abstract: The present disclosure provides a power transformer for medium voltage semiconductor devices. In one aspect, the power transformer includes a primary winding and a secondary winding, a primary magnetic core wound by the primary winding, a secondary magnetic core wound by the secondary winding, and a coupling coil wound about the primary and secondary magnetic cores.

公开(公告)号：US20240379278A1

公开(公告)日：2024-11-14

申请号：US18316219

申请日：2023-05-11

Applicant: Delta Electronics, Inc.

Inventor： Anup ANURAG ,  Peter BARBOSA

IPC: H01F27/28 ,  H01F27/29

Abstract: A reliable, potting free, and partial discharge free PCB-based inductor is provided. In one aspect, the PCB-based inductor includes an insulating planar board having a central through hole and conductive layers embedded in the insulating planar board. Each of the conductive layers is patterned to have a spiral shape around the central through hole and arranged in an annulus region having an annular radius. The conductive layers are arranged in a staggered pattern, such that the annular radius of the conductive layers increases from the centermost one of the conductive layers to the outermost ones of the conductive layers.