Dekoyl's Questions

[dekoyl]

If there is a clipped signal, the amplifier has not been biased correctly.
How do I know which side of the quiescent point it is wrongly set to though?
What information is needed to work this out and how do I read (I think) the graphs to tell me which side of the quiescent point it's been set on?

Thanks

[Mao]

The input signal is an AC signal with amplitude a. This signal is biased by a voltage divider in the circuit so that it has its median value at the quiescent point.

The range of input signal must 'fit' in the linear range (you are looking at the x axis here) of the amplification curve. If it goes over on the left, then it is biased too low, and vice versa.

[dekoyl]

^ Ah got it =]

Thanks Chairman Mao