Help to design lm833n audio amplifier circuit

Discussion in 'The Projects Forum' started by nahomyaja, Mar 15, 2012.

  1. nahomyaja

    Thread Starter New Member

    Feb 28, 2012
    8
    0
    Please help me with an audio amplifier circuit using LM833N to get a gain of 10. Can you help me design procedure?
     
  2. rfredel

    New Member

    Jan 23, 2011
    25
    3
    Hello,
    for a real design please give more information about input resistance, power supply and if you need a inverting or non - inverting amplifier.

    The following pictures shoes both types of amplifier with a input resistance of Ri = 10k and symmetric power supply.

    [​IMG][​IMG]

    R1 of the inverting circuit is equal to the input resitance of the amplifier. R3 must be equal to R1 to minimize the DC-offset of the output. The gain calculate by V = R2/R1.

    R3 of the non - inverting circuit is equal to the input resitance of the amplifier. R3 must be equal to R1 to minimize the DC-offset of the output. The gain calculate by V = (R2/R1) +1.
     
  3. nahomyaja

    Thread Starter New Member

    Feb 28, 2012
    8
    0
    Any value may be chosen for input resistance. Can you help me with the design for split supply circuit inster of dual supply +/-5V? Gain=10
     
  4. rfredel

    New Member

    Jan 23, 2011
    25
    3
    Hello,

    the following file shows jou the amplifier and the power supply.

    http://www.rainers-elektronikpage.de/Andere_Foren/Splitnetzteil.pdf

    In the drawing the German names still exist. I have copied the parts only with drop and Drag in the new drawing.

    I hope it will help you. If you have more quesstions, you can ask me.

    Sorry if I make mistakes in writing, because I translate the text for German to English.

    Best regards

    Rainer
     
  5. ishaan3731

    Member

    Jun 23, 2011
    43
    1
    check out www.redcircuits.com for audio circuits.....they really have a nice collection worth giving a peek!!!!!!
     
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