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4 pin Tactile-Micro

  1. Sep 18, 2014 #1
    Can we used the 4 pin Tactile-Micro as a on-off switch?
     
    Last edited by a moderator: Sep 18, 2014
  2. jcsd
  3. Sep 18, 2014 #2

    davenn

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    hi Kussy

    would you like to clarify a bit ... a 4 pin Tactile-Micro what ?

    I assume you mean switch ? like one of these ....

    attachment.php?attachmentid=73291&stc=1&d=1411082905.png

    I'm not aware of any that stay on ... ie they are all push make - release break

    Dave
     

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  4. Sep 18, 2014 #3
    Yes that one in the picture
     
  5. Sep 18, 2014 #4

    It's just break the circuit and go off
     
  6. Sep 18, 2014 #5

    davenn

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    OK there are ways to use this style of switch to be able to switch a circuit on and off

    here's one example .....

    attachment.php?attachmentid=73292&stc=1&d=1411083676.gif

    this process is common in so much gear these days ... TV's VCR's DVD players etc etc

    you will understand that that portion of the circuit will always have power on it


    cheers
    Dave
     

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  7. Sep 18, 2014 #6
    Thank you davenn that's very useful
     
  8. Sep 18, 2014 #7

    davenn

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    no probs

    if you do build this to experiment, you may find it suffers a little from switch bounce

    that is a pulse produced when contacts make and another when they break. This will cause
    double triggering in the flipflop IC

    there is a small mod that can be done to stop that

    attachment.php?attachmentid=73293&stc=1&d=1411084937.gif

    Dave
     

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