Discussion in 'Homework Help' started by fastcharlie2, Oct 16, 2014.
Trying to calculate AC Vout. I did the DC analysis but dont know where to start the AC.
Can you please show us what work you have done?
I took the capacitor as an open and did a KVL from the 2V sourece to the 1.2kohm.
Ie is approximate to Ic, Ic=1mA
Then a KVL at the output
-10V+1k x Ic+Vout=0
The only thing I know for AC analysis is re=25mV/Ie=25ohm
One would need to know the source frequency since there are frequency dependent components in series with the source.
The frequency is from 1kHz to 100kHz. But I dont understand how to do the AC analysis of this circuit.
Are you able to draw the small signal AC equivalent circuit? This is essentially a grounded base configuration. How would you know that it is grounded base?
I got it like this for the AC small signal but what do I got to do next?