High voltage protection circuit
    8.
    发明授权
    High voltage protection circuit 失效
    高压保护电路

    公开(公告)号:US3891891A

    公开(公告)日:1975-06-24

    申请号:US43832474

    申请日:1974-01-31

    Applicant: RCA CORP

    Inventor: STARK JR JOHN

    CPC classification number: H04N3/20

    Abstract: A zener diode rectifies an alternating current voltage representative of the generated high voltage in a television deflection system. This rectified voltage is supplied to a control electrode of a controlled current conducting device in the television receiver, the operation of the device being essential to the generation of a viewable raster. Additionally, the zener diode regulates the voltage supplied to the control electrode thereby limiting the high voltage generated in the deflection system to a value determined by the voltage rectified by the zener. In the event that excessive voltage causes excessive reverse current to flow in the zener diode, the zener diode will open- or short-circuit thereby altering the conduction of the controlled current conducting device, substantially impairing the device''s ability to produce a viewable raster.

    Abstract translation: 齐纳二极管对表示电视偏转系统中产生的高电压的交流电压进行整流。 该整流电压被提供给电视接收机中受控电流传导装置的控制电极,该装置的操作对于产生可视光栅是至关重要的。 此外,齐纳二极管调节提供给控制电极的电压,从而将偏转系统中产生的高压限制为由齐纳二极管整流的电压确定的值。 在过电压引起过量的反向电流在齐纳二极管中流动的情况下,齐纳二极管将断开或短路从而改变受控电流传导器件的导通,从而基本上损害器件产生可视光栅的能力。

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