The source of noise in amplifier

[sakkaf_90]

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

 

[ozymandias]

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.

--------
Assaf
http://www.physicallyincorrect.com/"

 

[dlgoff]

Welcome to PF sakkaf_90. I think you should read https://www.physicsforums.com/showthread.php?t=94388". You might get more responses.

Regards