3.
    发明专利
    未知

    公开(公告)号:SE7800357L

    公开(公告)日:1978-07-14

    申请号:SE7800357

    申请日:1978-01-12

    Applicant: CIT ALCATEL

    Inventor: NOUET C

    Abstract: A planar support member for an electric circuit, e.g. a printed circuit board, wherein at least a region of the support member includes magnetic material through at least a part of its thickness. A magnetic circuit is made in this material by forming at least one opening through it. The support member is then coated with insulative material and conductor paths are made on both faces of the support member by conventional techniques for such members. These paths include a winding disposed around a core part of the magnetic circuit with alternate half turns being formed on opposite faces and interconnected by through plating. The inductive circuit thus formed may constitute an inductor, a transformer or a relay.

    5.
    发明专利
    未知

    公开(公告)号:PT67520A

    公开(公告)日:1978-02-01

    申请号:PT6752078

    申请日:1978-01-12

    Applicant: CIT ALCATEL

    Inventor: NOUET C

    Abstract: A planar support member for an electric circuit, e.g. a printed circuit board, wherein at least a region of the support member includes magnetic material through at least a part of its thickness. A magnetic circuit is made in this material by forming at least one opening through it. The support member is then coated with insulative material and conductor paths are made on both faces of the support member by conventional techniques for such members. These paths include a winding disposed around a core part of the magnetic circuit with alternate half turns being formed on opposite faces and interconnected by through plating. The inductive circuit thus formed may constitute an inductor, a transformer or a relay.

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