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    For the circuit shown, assume an ideal op-amp. Find vo(t). Also, find the maximum value of vo(t). See attached diagram. Show how you arrived at your answer.

    © BrainMass Inc. brainmass.com December 24, 2021, 5:01 pm ad1c9bdddf
    https://brainmass.com/engineering/electrical-engineering/ideal-op-amp-maximum-values-22350

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    SOLUTION This solution is FREE courtesy of BrainMass!

    The Op- amp is configured in Inverting and Non inverting mode. We need to apply the gain formulae for the two configurations. To find the total output, by superposition law, add the two outputs and that should be it.

    Vo (inv) = ( -Rf/R1 )V1
    Vo (Non-inv) = (1 + (R2/R1) )V2
    Given:

    Rf = feedback resistor = 20k
    R2 = 20K resistor at the +Ve terminal
    R1 = 1K (Resistance at both the input terminals)

    We know V1 and V2

    So,
    Vtotal = 0.05 * (21/1) Sine (2pi*1200t) - 0.1 * (20/1) sin (2pi*60t)

    take 0.05* 21 approx = 1,
    Just by solving and observation,

    c) is your answer.

    To find Vo max,

    We know

    Vo total = 0.05 * (21/1) Sine (2pi*1200t) - 0.1 * (20/1) sin (2pi*60t)

    max of this term occurs when

    a) The Sine (2pi*1200t) term = 1 ; which means (2pi*1200t) = 90 degree

    and
    b)the sin (2pi*60t)= 0; which means (2pi*60t)= = 0 degree

    If the above conditions are met,

    Vo max = 1 - 0 = 1V

    answer is C

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    Hope this helped.

    Regards

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    © BrainMass Inc. brainmass.com December 24, 2021, 5:01 pm ad1c9bdddf>
    https://brainmass.com/engineering/electrical-engineering/ideal-op-amp-maximum-values-22350

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