Amplifier Stage Coupling

Thread Starter

KCHARROIS

Joined Jun 29, 2012
311
Hello everybody

I have a question regarding amplifier coupling. My first stage is a differential amplifier using 2n3904 then coupled to a class A amplifier and I get about a 10 Vpp output. So how do you couple the class A to a class AB amp?

Thanks
 

ramancini8

Joined Jul 18, 2012
473
Hello everybody

I have a question regarding amplifier coupling. My first stage is a differential amplifier using 2n3904 then coupled to a class A amplifier and I get about a 10 Vpp output. So how do you couple the class A to a class AB amp?

Thanks
A differential amplifier is normally used to reject common mode signals or dc. Do you really need a diff amp? You should be able to calculate the voltages and currents at the diff amp outputs, but we can't help you because you didn't supply a schematic. GIGO!
 
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