Non-inverting Op-Amp Amplifier Design for Gain of 20 & Load of 1k Ohms

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SUMMARY

The forum discussion focuses on designing a non-inverting operational amplifier (op-amp) circuit with a voltage gain of 20 and a load resistance of 1k ohms. The output voltage is calculated to be 2 sin(omega*t) Volts, derived from the formula V output = Voltage Gain * V input. The output current through the load is determined to be 2 sin(omega*t) Amperes. Additionally, the feedback resistor Rf is established as 19 times the resistor R, confirming the design parameters for the amplifier.

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Homework Statement


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.

Homework Equations



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


The Attempt at a Solution

 
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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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