bubba socillator simulation isnt working

Discussion in 'General Electronics Chat' started by idok, May 28, 2016.

  1. idok

    Thread Starter New Member

    Sep 10, 2015
    5
    0
    im trying to simulate an bubba oscillator circuit on LTspice but with no success,

    i get DC signal on my output, maybe im not using the suitable opamp(lt1013) ? i tried changing the values of the 2M resistor but still there isnt oscillation.

    what should i do in order to get a sine wave on my output ?
    any help would be much appreciated.

    RJZqc.gif

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  2. Alec_t

    AAC Fanatic!

    Sep 17, 2013
    5,761
    1,099
    The + and - supply pins of U1 are shorted together.
    Incidentally, LTS understands "2meg". Easier to read than "2000000" ;).
     
  3. idok

    Thread Starter New Member

    Sep 10, 2015
    5
    0
    oops didnt notive
    it works now thx
     
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