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16-06-09, 08:23 PM
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Common Source Amplifiers.
Need some help.
Can't find any info in my notes about this. Usual circuit, 2 coupling capacitors, 1 de-coupling capacitor, N-channel mosfet, and 3 resistor, gate, source and drain resisitors. 1) I have to explain the effects of the drain voltage during its positive and negative half cycles, when the input is supplied as a sinusoidal wave. Can I just apply my knowledge of common source amplifiers using a NPN transistor, would it be similiar? 2) Given the transconductance, Gm = 3.3 mS, calculate the output voltage pk to pk for a sinusoidal input voltage of 1V pk to pk.. Not sure if anyone has any knowledge of this, but would be very helpful.. 
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