# Homework Help: BJT homework question

1. May 19, 2014

### justinliu886

1. The problem statement, all variables and given/known data
the signal Vsig has a maximum voltage amplitude +-100mv
Vcc = 15V, Rc = 2.2khom, Re= 200ohm, β= 100, Vf = 0.7V, Vce,min = 0.2V, VT = 25mV
Assume the Capacitor having negligible impedance for the signal’s frequencies.

2. Relevant equations
a. Choose the DC biasing voltage VBB to such value that the overall open circuit voltage
amplification A(VOC) = −10.
b. Will this amplifier work properly for the specified signal amplitude?

3. The attempt at a solution

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2. May 21, 2014

### Staff: Mentor

Hi justinliu886. http://img96.imageshack.us/img96/5725/red5e5etimes5e5e45e5e25.gif [Broken]

I'm afraid that you have misunderstood the purpose of these forums. We try to help where you are having difficulty with some homework. But we don't do your homework for you!

Try solving it yourself, and show your working.

Last edited by a moderator: May 6, 2017