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Learner said:Hi guys,
With very little experience and training on transistors, can someone explain why the output of collector is inverted in a common emitter amplifier? I suppose the same reason goes for fets too?
Learner said:Hi guys,
With very little experience and training on transistors, can someone explain why the output of collector is inverted in a common emitter amplifier? I suppose the same reason goes for fets too?
Thanks in advance!
That makes no sense. What about an emitter follower (common collector)? There is no phase inversion, but the base is still doped differently from the emitter or the collector.mstechca said:Learner said:Hi guys,
With very little experience and training on transistors, can someone explain why the output of collector is inverted in a common emitter amplifier? I suppose the same reason goes for fets too?
Thanks in advance!
Logically speaking, a BJT transistor comes in 2 flavours, a PNP and an NPN. the middle letter (as shown in every manual) represents the base.
The outer letters represents both the collector and emitter. Because the base is different from collector by its polarity, that can give you big hints that the output is in the opposite polarity (inverted).
Well, my point is that the terms NPN and PNP don't lead to the conclusion that the circuit will invert. It is useful to remember that common emitter is the only bipolar configuration that inverts.mstechca said:His question is related to a common emitter amplifier. I wanted to make it simple for that. I didnt think about any other amplifier configuration.