INDUCTIVE WIRELESS POWER TRANSFER DEVICE WITH IMPROVED COUPLING FACTOR AND HIGH VOLTAGE ISOLATION

    公开(公告)号:US20190356165A1

    公开(公告)日:2019-11-21

    申请号:US15984596

    申请日:2018-05-21

    Abstract: An inductive wireless power transfer device includes a primary winding assembly and a secondary winding assembly separated from the primary winding assembly by a distance. A first magnetic core cap is on the primary winding assembly and a second magnetic core cap is on the secondary winding assembly so as to magnetically couple together the primary winding assembly and the secondary winding assembly. A multi-section high voltage (HV) isolator is interposed between the primary winding assembly and the secondary winding assembly. The multi-section HV isolator includes at least one individual insulator section comprising a dielectric material, and at least one intermediate magnetic core comprising a ferrite material interposed between the primary winding assembly and the secondary winding assembly.

    High voltage high frequency transformer

    公开(公告)号:US11694832B2

    公开(公告)日:2023-07-04

    申请号:US16264906

    申请日:2019-02-01

    CPC classification number: H01F27/24 H01F27/28 H01F41/0206 H01F41/04

    Abstract: A transformer includes a closed loop core having a first leg and a second leg. The transformer also includes a first primary winding surrounding the first and second legs, a second primary winding surrounding the first and second legs, and first and second secondary windings surrounding the first and second legs, respectively, and disposed between the first and second primary windings. A first turn of the first and second secondary windings are disposed on a first interlayer winding layer, and other turns of the first and second secondary windings are disposed on a first layer that is further from the first primary winding than the first interlayer winding layer.

    HIGH VOLTAGE HIGH FREQUENCY TRANSFORMER
    3.
    发明申请

    公开(公告)号:US20200251271A1

    公开(公告)日:2020-08-06

    申请号:US16264906

    申请日:2019-02-01

    Abstract: A transformer includes a closed loop core having a first leg and a second leg. The transformer also includes a first primary winding surrounding the first and second legs, a second primary winding surrounding the first and second legs, and first and second secondary windings surrounding the first and second legs, respectively, and disposed between the first and second primary windings. A first turn of the first and second secondary windings are disposed on a first interlayer winding layer, and other turns of the first and second secondary windings are disposed on a first layer that is further from the first primary winding than the first interlayer winding layer.

    HIGH VOLTAGE HIGH FREQUENCY TRANSFORMER
    4.
    发明申请

    公开(公告)号:US20200251270A1

    公开(公告)日:2020-08-06

    申请号:US16264879

    申请日:2019-02-01

    Abstract: A transformer includes a closed loop core having a first leg and a second leg. A first primary winding surrounds the first leg and a second primary winding surrounds the second leg. A first secondary winding surrounds the first leg and a second secondary winding surrounds the second leg. The first primary winding causes a magnetic flux to flow in the first leg in a first direction and the second primary winding causes the magnetic flux to flow in the second leg in a second direction that is opposite from the first direction.

    Inductive wireless power transfer device with improved coupling factor and high voltage isolation

    公开(公告)号:US10700551B2

    公开(公告)日:2020-06-30

    申请号:US15984596

    申请日:2018-05-21

    Abstract: An inductive wireless power transfer device includes a primary winding assembly and a secondary winding assembly separated from the primary winding assembly by a distance. A first magnetic core cap is on the primary winding assembly and a second magnetic core cap is on the secondary winding assembly so as to magnetically couple together the primary winding assembly and the secondary winding assembly. A multi-section high voltage (HV) isolator is interposed between the primary winding assembly and the secondary winding assembly. The multi-section HV isolator includes at least one individual insulator section comprising a dielectric material, and at least one intermediate magnetic core comprising a ferrite material interposed between the primary winding assembly and the secondary winding assembly.

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