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voltage amplifier

Discussion in 'Electronics Homework Help' started by gringo8217, May 31, 2013.

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  1. gringo8217

    gringo8217

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    0
    Mar 20, 2012
    can anybody explain how to solve the following please
    A voltage amplifier with an open loop gain of 10^4 has applied to it in turn 1% negative feedback and 5% negative feedback .
    For each case calculate the effect on:
    Gain magnitude
    Gain stability if Av varies by ± 6%
    Bandwidth assuming B(Av) =40KHz
    Signal to noise ratio with feedback if S/N=20dB.

    many thanks
    gringo 8217
     
  2. Harald Kapp

    Harald Kapp Moderator Moderator

    11,513
    2,651
    Nov 17, 2011
    Have a look at these notes , specially chapter 6.6.1 ff. This should help you get along.
     
  3. gringo8217

    gringo8217

    22
    0
    Mar 20, 2012
    thank you Harald !
    cheers
    gringo8217
     
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