transfer function

Discussion in 'General Electronics Chat' started by yasmin_cam, Feb 28, 2012.

  1. yasmin_cam

    Thread Starter New Member

    Feb 18, 2012
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    can someone help me with the transfer function of the circuit attached below.. it is a differentiator followed by an integrator
     
  2. Audioguru

    New Member

    Dec 20, 2007
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    I don't see a differentiator. The first opamp is a differential amplifier that is not needed since the input is single-ended.

    The second opamp and transistors is a simple first-order integrator (lowpass filter) with a gradual 6db/octave slope. The transistors are not biased so they will produce horrible crossover distortion.
     
    yasmin_cam likes this.
  3. yasmin_cam

    Thread Starter New Member

    Feb 18, 2012
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    0
    Thank you very much Audioguru..
    Yes the first is a differential op amp, would you know how to derived Vout/Vin for the circuit??
     
  4. Audioguru

    New Member

    Dec 20, 2007
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    There are so many crossed and joined wires that I can't see what is joined.
    It looks like both inputs of the differential amplifier have the same signal so the output will be almost nothing.
     
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