Circuit protection apparatus utilizing optical transmission path
    3.
    发明授权
    Circuit protection apparatus utilizing optical transmission path 失效
    电路保护装置利用光传输路径

    公开(公告)号:US3648110A

    公开(公告)日:1972-03-07

    申请号:US3648110D

    申请日:1970-08-20

    Inventor: KNIGHT STEPHEN

    CPC classification number: H02H1/0069 H02H9/04

    Abstract: High-speed circuit protection from high-current pulses is obtained by providing a transmission line loop that includes a light emitter and photodetector at opposite ends of the loop. The optical link between the emitter and photodetector is much shorter than the electrical path of the loop. A spurious highcurrent pulse excites the emitter, causing the photodetector to arm a dissipating or shunting element before the pulse traverses the loop. Thus, circuit protection from very high-rise time pulses can be provided by relatively low-response time elements. Other embodiments are also described.

    Abstract translation: 通过提供一个传输线环路,可以获得高电流脉冲的高速电路保护,该环路包括光发射器和环路相对两端的光电探测器。 发射器和光电检测器之间的光学链路比环路的电气路径短得多。 杂散的高电流脉冲激发发射极,使得光电探测器在脉冲穿过环路之前臂上消散或分流元件。 因此,可以通过相对低响应时间元件来提供来自非常高的上升时间脉冲的电路保护。 还描述了其它实施例。

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