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Homework Help: The source of noise in amplifier

  1. Nov 25, 2007 #1
    hi for every one
    I am a new member in tis site.
    I hope from u to help my I have a hmoework so I want some help
    The question is
    What is the source of noise in amplifier & how can treat the noise?
    Thank u
  2. jcsd
  3. Nov 25, 2007 #2
    There could be millions of sources.
    Well, maybe not millions ... but you catch my drift.
    Most common is thermal noise, aka nyquist noise. The obvious solution would be to dip the amplifier or preamplifier in some liquid nitrogen :D.
    There is also shot noise and flicker noise (1/f noise), but those are much less of a problem (not that they're not, but not in high power amps).

    Take your pick.

    http://www.physicallyincorrect.com/" [Broken]
    Last edited by a moderator: May 3, 2017
  4. Nov 25, 2007 #3


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