AC Analysis

Discussion in 'Homework Help' started by selfbg, Jun 11, 2010.

  1. selfbg

    Thread Starter Member

    Jun 11, 2010
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    Hello to all :)
    I'm studying electronics (1st grade :) ) and I have one big problem. I cant understand how to make AC analysis of Differential Amplifier or other amp. Can someone refer me to any book :)

    Sorry if my English is bad :rolleyes:
     
  2. mik3

    Senior Member

    Feb 4, 2008
    4,846
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    Microelectronics by Sedra and Smith.
     
  3. ELECTRONERD

    Senior Member

    May 26, 2009
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    I'll second that, it's an excellent book. Although if your in 1st grade, you might have some difficulty with the math involved.
     
  4. mik3

    Senior Member

    Feb 4, 2008
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    Another nice book, which is easier to understand, is Electronics Principles by Malvino.
     
  5. selfbg

    Thread Starter Member

    Jun 11, 2010
    23
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    I've seen the Electronics Principles by Malvino in the university library but it's in Spanish :D
    Thank you for your help :)
     
  6. hgmjr

    Moderator

    Jan 28, 2005
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    Can you post a schematic of the specific differential amplifer circuit complete with component values if available?

    hgmjr
     
  7. selfbg

    Thread Starter Member

    Jun 11, 2010
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  8. retched

    AAC Fanatic!

    Dec 5, 2009
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    Im guessing the 1st grade you are speaking of isn't the same 1st grade in America.

    I was doing single digit addition in 1st grade. (I think) ;)

    Have you had a read through the All About Circuits eBook?

    AC:
    http://www.allaboutcircuits.com/vol_2/index.html
     
  9. selfbg

    Thread Starter Member

    Jun 11, 2010
    23
    0
    Some of them yes :) Unfortunately I didn't find what I was looking for. :)

    By 1st grade I mean the first year in the university. Languages are not my strength :)
     
  10. selfbg

    Thread Starter Member

    Jun 11, 2010
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    I ordered Microelectronic Circuit on ebay. Thank again for the help :)
     
  11. Georacer

    Moderator

    Nov 25, 2009
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    If you choose to deal the OpAmp as ideal, there are two conditions that are always true, and they are sufficient to solve your circuit:
    <br />
I_+=I_-=0 and <br />
V_-=V+<br />
    Use these equations to solve your circuit.
    If there is no loop from the output of the OpAmp to its input, you might also need
    <br />
V_o=A\cdot(V_+-V_-)<br />
    where A, the open loop gain of the OpAmp
     
    Last edited: Jun 15, 2010
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