Lab

00:47:07

I have a lab report about this circuit it has something to do with common emitter amplifier n I really don't understand it at all and something about voltage gain and I just don't get it can someone please help me understand what's going on . Thanks 

published 11 years ago

zorgrian

11 years ago

You have the voltage source negative connected at the negative side through the load resistor and the positive side is left unconnected. Therefore there is no circuit related to the voltage source. The signal source can also sink an infinite current.

zorgrian

11 years ago

I'm not sure that the signal generator should pass equally through the Base to emitter junction as is depicted here

zorgrian

11 years ago

OK if you remove the voltage source from the collector end EC stops creating an infinite current sink at this point. This returns the NPN transistor to having a base to emitter junction that behaves as expected. The result is a rectification of the sine wave.

zorgrian

11 years ago

There is no real equivalent of the negative terminal of the EC voltage source. If you connect only the negative side of a battery to a low voltage circuit like the one you've created it will have no effect. However EC needs improvement in this area as it in no way simulates this situation correctly. I hope that my analysis helps.

momar1995

11 years ago

I changed it it has something to do with an common emitter amplifer and I don't get it something about voltage gain and I'm type the report and don't understand it

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