Do you need to calculate both input impedances for large signal and small signal?
For example, in the source follower below.
With small signal, I can figure out its input impedance is R1//R2 but I don't know why books don't mention about larger signal input impedance.
(With large signal, the input impedance is infinite.)
For example, in the source follower below.
With small signal, I can figure out its input impedance is R1//R2 but I don't know why books don't mention about larger signal input impedance.
(With large signal, the input impedance is infinite.)
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