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555 timer self reset

Discussion in 'General Electronics Discussion' started by sahil-siwatch, Jan 12, 2021.

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  1. sahil-siwatch

    sahil-siwatch

    14
    0
    Jan 12, 2021
    Most of the circuits there included using flip flop IC. I am planning to give 555 a try before changing IC. There was a circuit there which I tried but didn't work.

    Although I will spend more time on this circuit as well.
    upload_2021-1-14_0-45-11.png
     
  2. Alec_t

    Alec_t

    2,910
    791
    Jul 7, 2015
    So why do you have a 7V supply?
     
  3. sahil-siwatch

    sahil-siwatch

    14
    0
    Jan 12, 2021
    Sorry. I should have explained clearly. At first, it was 7V in settings. After that I also tried with default 3.3V to see what happens. :)
     
  4. Harald Kapp

    Harald Kapp Moderator Moderator

    10,833
    2,442
    Nov 17, 2011
    All logic should use the same level as the 555. The OR as well as the NOT.
     
  5. sahil-siwatch

    sahil-siwatch

    14
    0
    Jan 12, 2021
    All logics are same. Still no result. It goes into monostable but doesn't reset. You can access my circuit as well. go to https://www.multisim.com/discover/ and search "sahilsiwatch_555"
     
  6. sahil-siwatch

    sahil-siwatch

    14
    0
    Jan 12, 2021
    upload_2021-1-21_10-11-36.png
    This one worked for me. Thanks for all your efforts :)
     
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