High voltage high frequency transformer
    1.
    发明授权

    公开(公告)号:US10672553B2

    公开(公告)日:2020-06-02

    申请号:US15591707

    申请日:2017-05-10

    Inventor: Lev Volfson

    Abstract: According to one embodiment a transformer that includes a core having a central arm and first and second outer arms on opposite sides of the of the central arm, a primary winding surrounding the central arm and a secondary winding surrounding the central arm is disclosed. The transformer further includes a primary winding casing surrounding the primary winding, a secondary winding casing surrounding the secondary winding, and at least two spacers including a first spacer and a second spacer. The first spacer is configured and arranged to space the primary winding casing away from a bottom of the core and the outer arms and the second spacer is configured and arranged to space the secondary winding casing away from the primary winding casing and the outer arms.

    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
    5.
    发明申请

    公开(公告)号:US20200251275A1

    公开(公告)日:2020-08-06

    申请号:US16856439

    申请日:2020-04-23

    Inventor: Lev Volfson

    Abstract: A shielded transformer winding assembly includes a first winding formed on a circuit board. The circuit board includes at least two first board alignment elements formed therein and a casing including an inner portion and one or more tabs that extend outwardly from the inner portion the tabs arranged to form a notch between them. The assembly also includes a lower winding spacer disposed in one of the tabs that includes a stepped mounting member including first and second mounting member portions. The second mounting member portion has a smaller outer perimeter than and extends from the first mounting member portion. The first winding is disposed within the casing and on the lower winding spacer such that the second mounting member portion extends through one of the at least two first board alignment elements and wherein the first printed circuit board is supported by the first mounting member portion.

    High voltage high frequency power converter

    公开(公告)号:US10727757B2

    公开(公告)日:2020-07-28

    申请号:US16295461

    申请日:2019-03-07

    Abstract: A power converter includes an outer housing formed of dielectric material and including a low voltage compartment and a high voltage compartment is disclosed. The power converter also includes a low voltage DC-to-AC converter disposed in the low voltage compartment, a first coil in the low voltage compartment, a first conductive shield element lining an outer wall of the low voltage compartment, the first conductive shield element being electrically coupled to an electrical input of the DC-to-AC converter and a second conductive shield element lining an outer wall of the high voltage compartment.

    High voltage high frequency power converter

    公开(公告)号:US10270356B2

    公开(公告)日:2019-04-23

    申请号:US15231944

    申请日:2016-08-09

    Abstract: A power converter includes an outer housing formed of dielectric material and including a low voltage compartment and a high voltage compartment is disclosed. The power converter also includes a low voltage DC-to-AC converter disposed in the low voltage compartment, a first coil in the low voltage compartment, a first conductive shield element lining an outer wall of the low voltage compartment, the first conductive shield element being electrically coupled to an electrical input of the DC-to-AC converter and a second conductive shield element lining an outer wall of the high voltage compartment.

    HIGH VOLTAGE HIGH FREQUENCY TRANSFORMER
    8.
    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
    9.
    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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