Relay control circuit
    2.
    发明授权
    Relay control circuit 失效
    继电器控制电路

    公开(公告)号:US4153922A

    公开(公告)日:1979-05-08

    申请号:US856978

    申请日:1977-12-02

    IPC分类号: H01H9/56 H02H7/22

    CPC分类号: H01H9/56 Y10T307/931

    摘要: A relay control circuit is disclosed in which a timer circuit is actuated by a reference clock pulse in synchronism with an AC voltage supplied by a commercial power supply. An output signal of the timer circuit causes current to flow in the coil of the relay thereby to close the contact of a relay. The invention further comprises a polarity-reversing device for reversing the polarity in accordance with the variations in the output signal of the timer circuit. The reference clock pulse is applied to the timer circuit through the polarity-reversing device.

    摘要翻译: 公开了一种继电器控制电路,其中定时器电路由与商用电源提供的AC电压同步的参考时钟脉冲驱动。 定时器电路的输出信号使电流在继电器的线圈中流动,从而闭合继电器的接触。 本发明还包括根据定时器电路的输出信号的变化使极性反转的极性反转装置。 参考时钟脉冲通过极性反转装置施加到定时器电路。