småsignalantagandet
Småsignalantagandet, or the small-signal approximation, is a technique used in the analysis of electronic circuits and systems. It is applied when the input signals are small enough that the nonlinear behavior of components can be linearized around an operating point. This simplification allows for easier mathematical analysis of the circuit's response.
The core idea behind the small-signal approximation is to represent the total signal as the sum of
This approximation is particularly useful for analyzing amplifiers, oscillators, and other signal processing circuits. It enables
The validity of the small-signal approximation depends on the amplitude of the input signal relative to the