公开(公告)号：US20240038437A1

公开(公告)日：2024-02-01

申请号：US18486469

申请日：2023-10-13

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Peng Yu ,  Jun Zou

IPC: H01F27/28 ,  H01F27/24 ,  H01F27/30

CPC classification number: H01F27/2804 ,  H01F27/24 ,  H01F27/306

Abstract: A planar transformer includes a magnetic core. The magnetic core includes a first magnetic core cover, a second magnetic core cover, n first magnetic core pillars, and k second magnetic core pillars, the n first magnetic core pillars and the k second magnetic core pillars are disposed between the first magnetic core cover and the second magnetic core cover, and n and k each are an integer greater than 0. A primary-side winding and a secondary-side winding that are coupled to each other are disposed on each of the n first magnetic core pillars, and an auxiliary inductor winding is disposed on each of the k second magnetic core pillars.