Saturday, 4 October 2014

amplifier - Common emitter with low voltage input


I have to do a project involving a common emitter amplifier. The only given data is: the amplitude of the input signal is 100u, and offset voltage is 0.


I need that signal to be amplified. But my circuit won't amplify the signal, instead it will add offset voltage or even attenuate it.


What have i done wrong? Any ideas how to dimensionate the elements ( if that's the problem ) ?


Circuit was made in OrCAD Lite 16.6.


The circuit


Simulation results




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