# Emitter-Feedback Bias amplifier

#### ElectricalEngineering1610

Joined Sep 19, 2020
5

#### ericgibbs

Joined Jan 29, 2010
10,806
hi EE,
Welcome to AAC
E

#### ElectricalEngineering1610

Joined Sep 19, 2020
5
hi EE,
Welcome to AAC
E
I don't even have a attempt that is close to right but I do have the formulas we are given

Last edited by a moderator:

#### dl324

Joined Mar 30, 2015
11,530
Welcome to AAC!
Which part are you having a problem with?

Instead of photos of your screen, could you post screen captures in the future? Then we won't have to deal with Moiré patterns.

#### ElectricalEngineering1610

Joined Sep 19, 2020
5
Welcome to AAC!

Which part are you having a problem with?

Instead of photos of your screen, could you post screen captures in the future? Then we won't have to deal with Moiré patterns.
Will do. Thanks for the advice
I am struggling to work out the resistor values for Rb, Rc and Re because we were not given Vb, Vc or Ve and only give the supply voltage, the gain and the collector current

#### dl324

Joined Mar 30, 2015
11,530
I don't even have a attempt that is close to right but I do have the formulas we are given

What guidance have you been given regarding where to bias the collector?

#### ElectricalEngineering1610

Joined Sep 19, 2020
5
S
View attachment 217587

What guidance have you been given regarding where to bias the collector?
So this is my closest attempt that I just did I'm not sure if it is correct

#### dl324

Joined Mar 30, 2015
11,530
So this is my closest attempt that I just did I'm not sure if it is correct
What part do you think isn't correct?

If you bias the emitter to 6V, what mode would the transistor be operating in? What mode should it be operating in for an amplifier?

#### crutschow

Joined Mar 14, 2008
25,422
Instead of blindly trying to use equations you don't understand (it would seem), look a the circuit and try to understand its operation.
That will allow you to see how to solve the problem.