Class A Feedback Amplifier

Discussion in 'General Electronics Chat' started by KCHARROIS, Jan 7, 2013.

  1. KCHARROIS

    Thread Starter Member

    Jun 29, 2012
    292
    1
    Hello,

    I'm working on feedback amplifiers such as the picture below and I've read that there great for radio frequencies. So why is that and how do they help with gain?

    Thanks

    [​IMG]
     
  2. GopherT

    AAC Fanatic!

    Nov 23, 2012
    5,981
    3,710
    I don't know if it is a general statement about feedback amplifiers but the feedback forces the transistor to track a constant gain of the input. The inductors filter out the high frequencies and leave a demodulated audio signal behind for you to enjoy.
     
    KCHARROIS likes this.
  3. KCHARROIS

    Thread Starter Member

    Jun 29, 2012
    292
    1
    Thanks GopherT,

    I figured that would be it too but I know that as frequency increases your gain will decrease aswell, anybody else have a clue?

    Thanks
     
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