Voltage Dependent switch

Discussion in 'General Electronics Discussion' started by vishugupta, Sep 14, 2018.

  1. vishugupta

    vishugupta

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    I want know is there any way I can control a switch using the envelope signal of a modulated signal. I have signal which like a decaying Rabi oscillation and I want to control a switch from the sinusoidal envelope function only. Signal screenshot is attached below....
     

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    vishugupta, Sep 14, 2018
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  2. vishugupta

    Harald Kapp Moderator Moderator

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    Welcome to EP.
    It is possible:
    1. Create a signal that represents the envelope using an envelope detector.
    2. Create the on/off signal using a comparator. Adjust the threshold of the comparator to match your requirements.
    the internet has heaps of example circuits for both functions.
     
    Harald Kapp, Sep 14, 2018
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  3. vishugupta

    Nanren888

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    By "sinusoidal envelope" you mean the envelope of the sinusoid, right?
    So you want the switch to be on while the envelope is high?
     
    Nanren888, Sep 15, 2018
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