i want to design a two stage ce amplifier with following specification
A1=30 gain of first stage
A2=20gain of second stage
Rs=50 ohm,RL=1.5kohm
bandwidth=20 Hz-200KHz
beta value=100-200
assume Ie=Ic,Ve=0.1Vcc,
to find the values of R1,R2,Rc,Re,Cin,Ce,Cout?

 

Could you post up your attempts at finding the values? That way we can point you in the right direction.

Dave

 

Could you post up your attempts at finding the values? That way we can point you in the right direction.

Dave

To design a two stage RCcoupled CE amplifier
specifications-gain of FIRST stage (A1)=30,GAIN OF SECOND STAGE(A2)=20
function generator sourse resistance(Rs)=50ohm,RL=1.5kohm
bandwidth=20hz-20khz
assuming beta=100-200
assumptiom i made=Q POINT CLOSE TO THE MIDDLE OF THE LOAD LINE
Ve=0.1Vcc,Vc=0.5Vcc,Ic=Ie,Vcc=12volts
to design the circuits

 

i want to design a two stage ce amplifier with following specification
A1=30 gain of first stage
A2=20gain of second stage
Rs=50 ohm,RL=1.5kohm
bandwidth=20 Hz-200KHz
beta value=100-200
assume Ie=Ic,Ve=0.1Vcc,
to find the values of R1,R2,Rc,Re,Cin,Ce,Cout?

i dont no how to find it. please help me with formulas.

 

i dont no how to find this. please help me with formulas

 

In a word -- NO! You get nothing from me without showing some effort.
You might start by posting a schematic so we can figure out where R1 and R2 are!
Also why are two different people asking for this?

 

I'm in agreement with Papabravo on this one, you need to try and help yourselves here, and posting a schematic will certainly be a start. Also don't just repost the original question!

People who don't make an effort tend not to get the help they seek.

Dave

 

I concur with papabravo and dave in urging you to take the first step toward arriving at a solution for your problem by sketching a schematic of the circuit configuration of your amplifier. You can begin by clearly labeling the components in your schematic with their reference designations. This will start the ball rolling by forming the basis for an exchange of questions between yourself and those members with suggestions on how you might proceed.

The schematic can be hand drawn and then scanned into pdf format or whatever file format you have convenient access to.

hgmjr

 

I'm feeling way more charitable than I should. Try this link for one stage.
http://en.wikipedia.org/wiki/Common_emitter

 

Check out section 5-7 "MULTISTAGE RC COUPLED AMPLIFIERS" at this link. The circuit in figure 5-18 looks like it would serve as a good example to work through.

http://webtools.delmarlearning.com/sample_chapters/05.pdf

Have fun,
hgmjr

 

I'm feeling way more charitable than I should. Try this link for one stage.
http://en.wikipedia.org/wiki/Common_emitter

We've seen his weakness!

Still without a schematic this is a dud-one.

Dave