公开(公告)号：US20240194389A1

公开(公告)日：2024-06-13

申请号：US18421846

申请日：2024-01-24

Applicant: Delta Electronics, Inc

Inventor： Chun-Ching Yen ,  Yue Tsao ,  Shaodong Zhang ,  Chih-Ho Lai ,  Ying-Chieh Chin

IPC: H01F27/28 ,  H01F27/02 ,  H01F27/24 ,  H01F27/29

CPC classification number: H01F27/2804 ,  H01F27/02 ,  H01F27/24 ,  H01F27/292

Abstract: A planar transformer includes a magnetic core assembly, at least one printed circuit board, a magnetic conductive sheet and at least one winding module. The magnetic core assembly includes a first magnetic core and a second magnetic core. The printed circuit board is disposed between the first magnetic core and the second magnetic core. The printed circuit board includes a first winding. The magnetic conductive sheet is disposed between the first magnetic core and the second magnetic core to form a leakage inductance required by the planar transformer. The at least one winding module is disposed between the first magnetic core and the second magnetic core. The winding module includes a second winding and a plastic molding layer. At least a portion of the second winding is covered by the plastic molding layer. The at least one printed circuit board and the at least one winding module are individual components.

公开(公告)号：US20240128009A1

公开(公告)日：2024-04-18

申请号：US18096380

申请日：2023-01-12

Applicant: Delta Electronics, Inc.

Inventor： Meng-Chen Hsieh ,  Chun-Ching Yen ,  Huai-Pei Tung

IPC: H01F27/28 ,  H01F27/24 ,  H01F27/30 ,  H01F27/32

CPC classification number: H01F27/2823 ,  H01F27/24 ,  H01F27/306 ,  H01F27/32

Abstract: A magnetic device includes a magnetic core and at least two windings. The magnetic core includes an annular main body and a hollow portion. Each of the at least two windings includes a coil with a plurality of turns. Each turn of the coil penetrates through the hollow portion and is disposed around the annular main body. The at least two windings are disposed around the annular main body to form at least three winding regions. Each of the winding regions except a winding region which is last formed has at least three winding layers stacked up one by one. The number of the winding layers of the winding regions except the winding region which is last formed is odd and greater than or equal to three.

公开(公告)号：US20240112851A1

公开(公告)日：2024-04-04

申请号：US18097885

申请日：2023-01-17

Applicant: Delta Electronics, Inc.

Inventor： Caili Gu ,  Xiaoxia Yuan ,  Chun-Ching Yen ,  Yue Tsao ,  Huai-Pei Tung ,  Shaodong Zhang ,  Zhi-Liang Zhang

IPC: H01F27/28 ,  H01F27/24 ,  H01F27/29 ,  H05K1/18

CPC classification number: H01F27/2847 ,  H01F27/24 ,  H01F27/29 ,  H05K1/182

Abstract: A planar transformer includes a magnetic core assembly, at least one printed circuit board and at least one winding module. The magnetic core assembly includes a first magnetic core and a second magnetic core. The at least one printed circuit board is disposed between the first magnetic core and the second magnetic core. The printed circuit board includes a first winding. The at least one winding module is disposed between the first magnetic core and the second magnetic core. The winding module includes a second winding and a plastic molding layer. At least a portion of the second winding is covered by the plastic molding layer. The at least one printed circuit board and the at least one winding module are individual components.