ISOLATED TRANSFORMER WITH INTEGRATED SHIELD TOPOLOGY FOR REDUCED EMI

    公开(公告)号:US20200303319A1

    公开(公告)日:2020-09-24

    申请号:US16800043

    申请日:2020-02-25

    Abstract: A packaged electronic device includes first conductive leads and second conductive leads at least partially exposed to an exterior of a package structure, and a multilevel lamination structure in the package structure. The multilevel lamination structure includes a first patterned conductive feature having multiple turns in a first level to form a first winding coupled to at least one of the first conductive leads in a first circuit, a second patterned conductive feature having multiple turns in a different level to form a second winding coupled to at least one of the second conductive leads in a second circuit isolated from the first circuit, and a conductive shield trace having multiple turns in a second level spaced apart from and between the first patterned conductive feature and the second patterned conductive feature, the conductive shield trace coupled in the first circuit.

    INTEGRATED TRANSFORMER WITH PRINTED CORE PIECE

    公开(公告)号:US20240170207A1

    公开(公告)日:2024-05-23

    申请号:US18427734

    申请日:2024-01-30

    CPC classification number: H01F41/041 H01F27/2804

    Abstract: A method includes performing a printing process that deposits a magnetic paste onto a first side and into an opening of a laminate; curing the magnetic paste to form a first transformer core piece having a first portion along the first side and a second portion filling the opening of the laminate; joining a second transformer core piece to a side of the second portion of the first transformer core piece to form a transformer. A transformer includes a laminate; a first core piece; and a second core piece, the first core piece comprising: a cured magnetic paste, a first portion along a side of the laminate, and a second portion filling an opening of the laminate, the second core piece extending along a side of the second portion of the first transformer core piece, and the laminate having windings that encircle the opening.

    Method for manufacturing an integrated transformer with printed core piece

    公开(公告)号:US11887776B2

    公开(公告)日:2024-01-30

    申请号:US16904875

    申请日:2020-06-18

    CPC classification number: H01F41/041 H01F27/2804

    Abstract: A method includes performing a printing process that deposits a magnetic paste onto a first side and into an opening of a laminate; curing the magnetic paste to form a first transformer core piece having a first portion along the first side and a second portion filling the opening of the laminate; joining a second transformer core piece to a side of the second portion of the first transformer core piece to form a transformer. A transformer includes a laminate; a first core piece; and a second core piece, the first core piece comprising: a cured magnetic paste, a first portion along a side of the laminate, and a second portion filling an opening of the laminate, the second core piece extending along a side of the second portion of the first transformer core piece, and the laminate having windings that encircle the opening.

    Isolated transformer with integrated shield topology for reduced EMI

    公开(公告)号:US11538766B2

    公开(公告)日:2022-12-27

    申请号:US16800043

    申请日:2020-02-25

    Abstract: A packaged electronic device includes first conductive leads and second conductive leads at least partially exposed to an exterior of a package structure, and a multilevel lamination structure in the package structure. The multilevel lamination structure includes a first patterned conductive feature having multiple turns in a first level to form a first winding coupled to at least one of the first conductive leads in a first circuit, a second patterned conductive feature having multiple turns in a different level to form a second winding coupled to at least one of the second conductive leads in a second circuit isolated from the first circuit, and a conductive shield trace having multiple turns in a second level spaced apart from and between the first patterned conductive feature and the second patterned conductive feature, the conductive shield trace coupled in the first circuit.

    INTEGRATED MAGNETIC CORE AND WINDING LAMINA

    公开(公告)号:US20220310302A1

    公开(公告)日:2022-09-29

    申请号:US17215457

    申请日:2021-03-29

    Abstract: A microelectronic device includes a magnetic component having a first magnetic core segment and a second magnetic core segment, with a winding lamina between them. The first magnetic core segment includes a winding support portion with ferromagnetic material. The winding lamina is attached to the winding support portion. The first magnetic core segment also includes an extension portion with ferromagnetic material extending from the winding support portion. The winding lamina has winding loops of electrically conductive material that surround ferromagnetic material. A filler material is formed between the winding lamina and the first magnetic core segment, contacting both the winding lamina and the first magnetic core segment. The second magnetic core segment is attached to the extension portion of the first magnetic core segment. The second magnetic core segment includes ferromagnetic material. The winding loops are electrically coupled to external leads through electrical connections.

    INTEGRATED TRANSFORMER WITH PRINTED CORE PIECE

    公开(公告)号:US20210398736A1

    公开(公告)日:2021-12-23

    申请号:US16904875

    申请日:2020-06-18

    Abstract: A method includes performing a printing process that deposits a magnetic paste onto a first side and into an opening of a laminate; curing the magnetic paste to form a first transformer core piece having a first portion along the first side and a second portion filling the opening of the laminate; joining a second transformer core piece to a side of the second portion of the first transformer core piece to form a transformer. A transformer includes a laminate; a first core piece; and a second core piece, the first core piece comprising: a cured magnetic paste, a first portion along a side of the laminate, and a second portion filling an opening of the laminate, the second core piece extending along a side of the second portion of the first transformer core piece, and the laminate having windings that encircle the opening.

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