Urgent, Timer Delay

Discussion in 'The Projects Forum' started by G8NPH, Feb 24, 2008.

  1. G8NPH

    Thread Starter New Member

    Feb 24, 2008
    3
    0
    I need a timer delay circuit so when there is a pulse the circuit will wait 10-15 seconds then a output pulse will occure

    any circuit suggestions and layouts and pictures would be usefull

    G8NPH
     
  2. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    What's your application?

    What is the input pulse, positive or negative? What amplitude?
     
  3. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
    5,699
    907
    You can get that sort of delay with a 555, but I would probably use a dual voltage comparator (LM393) with the first comparator as a buffer and the second with an RC delay input. If you need the schematic, ping back. John
     
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