公开(公告)号：US20180040410A1

公开(公告)日：2018-02-08

申请号：US15555827

申请日：2016-02-25

Applicant: FDK CORPORATION

Inventor： Kenji Hamada ,  Tomoyuki Nagayoshi ,  Tadashi Sato ,  Norio Fukui

IPC: H01F27/28 ,  H02M7/00 ,  H02M1/00 ,  H02M3/335

CPC classification number: H01F27/2804 ,  H01F30/10 ,  H01F2027/2809 ,  H01F2027/2819 ,  H02M1/00 ,  H02M3/28 ,  H02M3/33592 ,  H02M7/003 ,  H02M2001/0054 ,  H05K1/0262 ,  H05K1/144 ,  H05K1/16 ,  H05K1/165 ,  H05K2201/042 ,  H05K2201/086 ,  H05K2201/2036 ,  Y02B70/1491

Abstract: An isolated switching power supply of the present invention includes: a first circuit board provided with a pattern of a primary winding constituting an isolation transformer; a second circuit board provided with patterns of secondary windings constituting the isolation transformer, wherein a secondary winding pattern portion is arranged to face a primary winding pattern portion of the first circuit board at a predetermined interval; and a core inserted into the primary winding of the first circuit board and the secondary windings of the second circuit board and made of a magnetic body constituting the isolation transformer.