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CCTV cameras can film at night with non constant light?

Discussion in 'General Electronics Chat' started by Flyback, Aug 9, 2017.

  1. Flyback

    Flyback Well-Known Member

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    Hello,
    Our LED current looks like the following due to being from an offline regulator with no output capacitance.
    Will CCTV cameras be able to film activity in the streets at night-time with this kind of heavily amplitude modulated lighting?
     

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  2. ronsimpson

    ronsimpson Well-Known Member Most Helpful Member

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    I think this will fool the camera.
     
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  3. Flyback

    Flyback Well-Known Member

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    Thanks, do they not have some kind of variable frame rate so that they can avoid only filming in the null bit where there's no light?
     
  4. dave

    Dave New Member

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  5. schmitt trigger

    schmitt trigger Active Member

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    The camera would have to synchronize its field rate to the illumination level such that there are no humbars.
     
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