Relaxation Oscillator

Discussion in 'The Projects Forum' started by aman92, Aug 22, 2012.

  1. aman92

    Thread Starter Member

    Aug 22, 2012
    33
    0
    I am trying to simulate a relaxation oscillator on PSPICE. I have set the input voltages to the op-amp 15V, but I only seem to get a straight line instead of a square wave. Any suggestions?
     
  2. crutschow

    Expert

    Mar 14, 2008
    13,024
    3,236
    If you want more than guesses, my suggestion is to post the schematic. :rolleyes:
     
  3. Audioguru

    New Member

    Dec 20, 2007
    9,411
    896
    You must "kick" many oscillators to get them to work in a simulation. In an actual circuit the power supply turning on abruptly gives the kick to get it started.
     
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