Op Amp Circuiit Questions

Discussion in 'Homework Help' started by MoonLight94, Oct 30, 2015.

  1. MoonLight94

    Thread Starter New Member

    Oct 30, 2015
    2
    0
    Hello there I have a problem with this questions I hope if u can help me with them :)

    My problem is how to get Vo in these questions ..

    first one because of the non inverting feed back

    and the second one is because of the Complexity of the circuit ..

    and the in advance
     
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  2. dl324

    Distinguished Member

    Mar 30, 2015
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    Are these homework questions?
     
  3. WBahn

    Moderator

    Mar 31, 2012
    17,757
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    MOD NOTE: Moved to Homework Help (because it looks like homework).

    If this is homework, you need to show your best attempt to solve the problem. We can then look at your attempt and identify what you are doing right and what you are doing wrong and help get you on the right path.
     
  4. MoonLight94

    Thread Starter New Member

    Oct 30, 2015
    2
    0
    great I'll Do my best, but i really don't know from where to start with the non inverting feedback
     
  5. WBahn

    Moderator

    Mar 31, 2012
    17,757
    4,800
    Remember that what you are looking for is an output voltage that is stable for the given input (since this isn't an oscillator, hopefully). Also keep in mind that the output voltage is limited to being between the power supply voltages.
     
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  6. RBR1317

    Active Member

    Nov 13, 2010
    232
    48
    Analysis of an op-amp circuit wired for negative feedback always starts with the realization that the voltage difference between the op-amp inputs is just a few micro-volts. For an ideal op-amp with infinite gain, the voltage difference is 1/∞ or zero.
     
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