 ##  [Small-Signal Model](/small-signal-model) 

  ##  [Small-Signal Model](https://engineering.quantumdictionary.io/small-signal-model-0) 

  
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**Engineering &amp; Applied Technologies Dictionary**

 
Definition

A linearized equivalent circuit or mathematical representation of a nonlinear electronic device obtained by expanding its governing equations about a steady operating (bias) point and retaining only first‑order (linear) terms, used to predict the device's response to small perturbations around that bias.