Setting up multisim (555 timer)

Discussion in 'The Projects Forum' started by umer0314, Aug 23, 2009.

  1. umer0314

    Thread Starter Member

    Jul 29, 2009
    29
    0
    I am designing a circuit on multisim and I am having problem doing that. I have a circuit already but it not working properly on multisim. I cant figure out how to set it up in multisim. When power on the circuit produces 20 pulses in 20 seconds and then after that it produces 1 pulse after every 60 seconds so a 59 second delay.

    Frist step:

    20 pulses in 20 seconds

    Second step:

    1 pulse after every 60 seconds (59 second delay) and it keeps repeating this 1 pulse after every 60 seconds until power tunred off. The first 20 pulses in 20 seconds only happens once in the beginning when power on.

    I am attaching the circuit!
     
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