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Homework Help: Non-inverted Op-amp

  1. Apr 23, 2008 #1
    1. The problem statement, all variables and given/known data
    Design a non-inverting op-amp amplifier for a voltage gain of 20 and a load of 1k ohms. Determine the output voltage and output op-amp current if V input = 0.1 sin (omega*t) Volts.

    2. Relevant equations

    Voltage Gain = V output/V input
    Voltage Gain = 1 + Rf/R

    3. The attempt at a solution
  2. jcsd
  3. Apr 23, 2008 #2
    v output = voltage gain * v input = 0.1 sin (omega*t) * 20 = 2 sin (omega*t) Volts
    i load, which is the current through R load = V output/R load = 2 sin (omega*t) / 1 ohm

    I also figured out from the 2nd voltage gain equation that, Rf = 19R
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