College Assignment question need help!

Thread Starter

unknown93

Joined Feb 13, 2013
2
The question is

An amplifier has an open-loop gain off 99db's, if 10% of the output signal is fed-back into the input in antiphase with input signal, determine:

(A) From the first principles the transfer function for the amplifier and
(B) hence determine the closed-loop gain of the amplifier

thanks :D
 

WBahn

Joined Mar 31, 2012
29,932
What efforts have you made to solve the problem (never forget, it is YOUR problem)?

Once you show your efforts, we will have something to hook into and help you make progress.
 

MrChips

Joined Oct 2, 2009
30,621
Geeze, you don't get it. There is no formula.
You have to work through the equations yourself.
We don't know. This is your problem. Show us what you think is the proper approach.
Start by drawing a diagram.
 

WBahn

Joined Mar 31, 2012
29,932
im not asking for the answer, i just don't have a clue how to answer it
so some sort of formulae would help

thanks
Can you draw a circuit diagram that matches the description given?

What is the relationship between the input voltages to the amplifier and the output voltage?
 
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