- #1
formulajoe
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gain of the circuit is -50 V/V, open loop gain is 200 V/V. There are three resistors in the circuit. The standard R2 and R2 and there is an R3 resistor.
Vo is across R3. It is connected to the output of the output going to ground. I need to find a value for R1 to make the gains works. The value for R2 is 100K and the value for R3 is 10K.
I don't know how to this problem. I can do it just fine with a finite open loop gain if R3 is gone and I can do it just fine with R3 as long as there is an infinite open loop gain.
Heres what I have
G = Vo/Vi = -50 = (-R2/R1)/(1+1+R2/R1)/A
Using this I found R1 to be 1500 ohms. Is this right?
Vo is across R3. It is connected to the output of the output going to ground. I need to find a value for R1 to make the gains works. The value for R2 is 100K and the value for R3 is 10K.
I don't know how to this problem. I can do it just fine with a finite open loop gain if R3 is gone and I can do it just fine with R3 as long as there is an infinite open loop gain.
Heres what I have
G = Vo/Vi = -50 = (-R2/R1)/(1+1+R2/R1)/A
Using this I found R1 to be 1500 ohms. Is this right?