公开(公告)号：US20180211764A1

公开(公告)日：2018-07-26

申请号：US15876575

申请日：2018-01-22

Applicant: TDK Corporation

Inventor： Yuma KOMAYA ,  Miki KUSAKABE ,  Tomokazu TSUCHIYA

IPC: H01F27/28 ,  H02K3/00 ,  H01F17/04 ,  H01F27/29

CPC classification number: H01F27/2823 ,  H01F17/04 ,  H01F17/045 ,  H01F27/006 ,  H01F27/29 ,  H01F2017/0093 ,  H02K3/00

Abstract: Disclosed herein is a common mode filter that includes a winding core part including first to third winding areas and first and second wires wound in a same direction around the winding core part and crossing each other in the third winding area. The first wire is aligned and wound in the first and second winding areas, and the second wire is aligned and wound on the first wire in the first and second winding areas, whereby a plurality of winding blocks are formed. The winding blocks include a first winding block positioned in the first winding area and second and third winding blocks positioned in the second winding area. The second wire constituting the second winding block and the second wire constituting the third winding block are separated from each other.