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公开(公告)号：US20230422400A1
公开(公告)日：2023-12-28
申请号：US18035614
申请日：2021-11-05
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Takayuki TANGE , Neil STEPHENSON , Lee FRANCIS
CPC classification number: H05K1/165 , H01F27/266 , H01F27/2895 , H01F41/046 , H01F2027/2809 , H01F2027/2819 , H05K2201/086 , H05K3/4697
Abstract: A device includes a substrate including a cavity, a magnetic core in the cavity, a first winding extending around the magnetic core, and a single channel that extends between the cavity and an exterior of the device and that defines an opening. The first winding includes vias along an exterior periphery of the magnetic core opposite to the channel.
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公开(公告)号：US20230187119A1
公开(公告)日：2023-06-15
申请号：US18081074
申请日：2022-12-14
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Neil STEPHENSON , Frank WARNES
CPC classification number: H01F27/2804 , H01F27/29 , H02M3/337 , H05K1/117 , H05K1/165 , H05K1/181 , H01F27/266 , H01F27/2895 , H01F2027/2809
Abstract: An embedded magnetic component transformer device includes primary, secondary, and auxiliary windings that are defined by conductive vias connected by conductive traces. The conductive traces and vias of the auxiliary winding are arranged between the conductive traces and vias of respective first and second portions of the primary winding, so that the auxiliary winding is provided substantially in the center of the width of the PCB. Power connections are provided at respective opposing edges of the device, and surface mounted transistors are provided close to the primary winding portions between the auxiliary winding and the edge of the device. The device provides an efficient utilization of the surface conductive traces such that large areas of the surface remain for other functions, such as ground plates. The thermal properties of the device are balanced by distributing the transistors and the power connections.
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