Arrangement for switching a resistor

    公开(公告)号:US11758620B2

    公开(公告)日:2023-09-12

    申请号:US16627082

    申请日:2018-06-22

    Applicant: Webasto SE

    CPC classification number: H05B1/02 H01H33/596 H02M3/06 H05B2203/013

    Abstract: An arrangement, comprising a heat-emitting resistor, a control device for switching the resistor and a component that is at a potential without direct reference to a drive voltage. The resistor is arranged in spatial proximity to the component, and has a first and a second partial resistor connected in series. The control device includes at least one switching device for switching the heat-emitting resistor. The first partial resistor, the switching device and the second partial resistor are connected in series in the stated order and form a series connection. The first partial resistor and the component form a first partial capacitance and the second resistor and the component form a second partial capacitance. The partial capacitances are formed in such a way that upon the switching of the resistor a current flowing in the first partial capacitance is at least partly taken up by the second partial capacitance, or vice versa.

    Assembly for switching a resistor

    公开(公告)号:US11665782B2

    公开(公告)日:2023-05-30

    申请号:US16095829

    申请日:2017-04-28

    Applicant: Webasto SE

    CPC classification number: H05B1/0202 H05B1/0236 H05B2203/035

    Abstract: An assembly, comprising a heat-dissipating first resistor, control device for controlling the first resistor, as well as a grounded component, which lies on a potential without direct relation to a control voltage.



    The first resistor is arranged in spatial vicinity of the grounded component and comprising a first and a second connection.
    The control device comprises a first switching device and a second switching device.
    The first switching device, first resistor and second switching device form a series connection.
    A compensation device is configured such that in the On-state of the first resistor a voltage is applied between the first and second connection, wherein the resistor in the off-state is held on an in-between potential that lies between the first and the second potential and/or
    the control device is configured to trigger the first resistor in a pulse width modulated fashion, such that the first as well as the second switching device are switched synchronously.

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