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quiescent point, the Q-Point!!!!!

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electronics_kumar

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for a transitor's faithful amplification,it should be operated in quiescent point, the Q-Point...but quiescent means silent so in what/which way the transistor is silent....
 

maybe what is meant is that no input signal"ac-signal" just biasing , quiscent== DC as in dirct not alternating i.e quiscent
 

I think this definition fits better

"1. Being in a state of repose; at rest; still; not moving; as, a quiescent body or fluid."

It's more like the steady state, being undisturbed (by signal).

:D
 

Normally the transistor must be biased in order to obtain amplification.

I try to explain better:

an NPN transistor can only sink current from its collector. So to obtain bipolar signalas at the output you have to provide bias to collector current.

For example if you force the collector current to be 1mA with no signal at the input then , when the input is applied he collector current can increase (positive output) or decrease (negative output)
 

quiescent means "DC", contrast to "AC".
 

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