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Saturday 22 July 2023

Common Emitter vs Common Source Amplifier

Common Emitter Amplifier vs Common Source Amplifier

CE and CS Amplifiers Output Resistance

 

 

Observation: For comparable bias points, output resistances of common emitter and common source amplifiers are similar.

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BJT and FET Small-Signal parameter Comparison:

 

The dc I-V Active region expressions used:

 

 

CE and CS Amplifiers Summary:

 

 Amplifier Power Dissipation

Static power dissipation in amplifiers is found from their dc equivalent circuits.