公开(公告)号：US11742139B2

公开(公告)日：2023-08-29

申请号：US16881366

申请日：2020-05-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lei Shi ,  Mingyu Xue ,  Fei Ye ,  Jun Zhang

IPC: H01F38/30 ,  H01F27/24 ,  H01F27/28

CPC classification number: H01F38/30 ,  H01F27/24 ,  H01F27/28

Abstract: A current transformer (10) includes a magnetic core, a first primary-side winding, a second primary-side winding, and a first secondary-side winding. The magnetic core includes a first magnetic core structure, a second magnetic core structure, and a third magnetic core structure. The first magnetic core structure is connected to the second magnetic core structure to constitute a first closed magnetic circuit, the first magnetic core structure is connected to the third magnetic core structure to constitute a second closed magnetic circuit, and the first magnetic core structure is a magnetic core structure common to the first closed magnetic circuit and the second closed magnetic circuit.