please find the values for me

Discussion in 'General Electronics Chat' started by gupteswarsahu, Aug 1, 2006.

  1. gupteswarsahu

    Thread Starter New Member

    Aug 1, 2006
    3
    0
    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?
     
  2. Dave

    Retired Moderator

    Nov 17, 2003
    6,960
    144
    Could you post up your attempts at finding the values? That way we can point you in the right direction.

    Dave
     
  3. gupteswarsahu

    Thread Starter New Member

    Aug 1, 2006
    3
    0
    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
     
  4. aravind

    New Member

    Aug 28, 2006
    2
    0
    i dont no how to find it. please help me with formulas.
     
  5. aravind

    New Member

    Aug 28, 2006
    2
    0
    i dont no how to find this. please help me with formulas
     
  6. Papabravo

    Expert

    Feb 24, 2006
    10,140
    1,790
    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?
     
  7. Dave

    Retired Moderator

    Nov 17, 2003
    6,960
    144
    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
     
  8. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    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
     
  9. Papabravo

    Expert

    Feb 24, 2006
    10,140
    1,790
  10. hgmjr

    Moderator

    Jan 28, 2005
    9,030
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  11. Dave

    Retired Moderator

    Nov 17, 2003
    6,960
    144
    We've seen his weakness! :D

    Still without a schematic this is a dud-one.

    Dave
     
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