Version 1.0, August 31, 2001, Copyright, Hugh Jack 1993-2001

5.2.1.1 - Biasing Common Emitter Transistors

 

· A common emitter configuration is shown in the figure below.

 

 

· Consider the common emitter amplifier shown. The resistors provide DC biasing to select an operating point. The capacitor Ce is used to allow the AC to bypass Re.

 

· To perform the design we must first bias the transistor using the curves below.