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Mathematical proof for positive feedback

  1. Jan 17, 2013 #1
    Is there a mathematical proof that the positive feedback makes the op-amp saturated?

    http://i.imgur.com/71PNh.png
     
  2. jcsd
  3. Jan 17, 2013 #2
    Do you understand why it saturates (non-mathematical seat of the pants explanation)?
     
  4. Jan 17, 2013 #3
    Let's clarify this by specifying positive DC feedback drives the opamp into saturation. Positive AC feedback makes it oscillate.
     
  5. Jan 19, 2013 #4
    Yes of course
     
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