Hey folks,
Haven't done any electronics for a couple of years so a bit rusty. I have been staring at this question all day, and although I have five text books on hand still cannot crack it. I have a standard differential op amp circuit, and am given only the value of R2(150kohms). The first part asks if the gain of the amplifier is to be 50, what should be the value of R1.
In the diff op amp equations does the gain represent "Vout" or "V2-V1"? I am thinking that you would make "Vout" 50 and "V2-V1" 1, then just solve for R1. Am I on the right track?
Part b asks if the gain is 50, and V1=2+sin(120t)-0.04sin(500t), and V2=3+sin(120t)+0.02sin(500t) what is the output voltage. To me this is not in polar form or rectangular form, how do I solve it?
As I said I'm a bit rusty...
I have attached a photo of the circuit.
Any assistance would be much appreciated.
Cheers.
Haven't done any electronics for a couple of years so a bit rusty. I have been staring at this question all day, and although I have five text books on hand still cannot crack it. I have a standard differential op amp circuit, and am given only the value of R2(150kohms). The first part asks if the gain of the amplifier is to be 50, what should be the value of R1.
In the diff op amp equations does the gain represent "Vout" or "V2-V1"? I am thinking that you would make "Vout" 50 and "V2-V1" 1, then just solve for R1. Am I on the right track?
Part b asks if the gain is 50, and V1=2+sin(120t)-0.04sin(500t), and V2=3+sin(120t)+0.02sin(500t) what is the output voltage. To me this is not in polar form or rectangular form, how do I solve it?
As I said I'm a bit rusty...
I have attached a photo of the circuit.
Any assistance would be much appreciated.
Cheers.
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