positive feedback op amp(oscillator)

Discussion in 'General Electronics Chat' started by TAKYMOUNIR, Mar 13, 2013.

  1. TAKYMOUNIR

    Thread Starter Active Member

    Jun 23, 2008
    351
    1
    in this relaxation osc.what is the effect of r5 and r2 on the frequency and what is the effect if i increase or decrease r6, and r4 effect on the -ve width only or what , and what is the frequency
    thanks
     
  2. GopherT

    AAC Fanatic!

    Nov 23, 2012
    6,011
    3,785
    It looks like you have it in the simulator, give it a try.
     
    TAKYMOUNIR likes this.
  3. TAKYMOUNIR

    Thread Starter Active Member

    Jun 23, 2008
    351
    1
    i try to simulate by p spice but for some reason it does not work that is why i am asking for help
     
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