Transistor amplifier models

183

01:28:01

Going over these in my Analog circuits class. I know the math behind them but still don’t really understand how the AC and DC sources work together. What should the output look like? Why is it clipped?

published 3 years ago

andrewjepsen

3 years ago

It is clipped because the transistor only allows current in one direction. It acts kinda like a diode.

andrewjepsen

3 years ago

here is the link to one ive made. https://everycircuit.com/circuit/6651516108406784

592azy2circuitdude

3 years ago

To me, this looks like the transistors are not biased correctly. They are swinging between their non-linear states (switching states ON and OFF). For an amplifier, you want to put the transistors in the linear region (I think that is the 'Q' point). This is what the DC sources are for (and usually some resistors are added, too). The AC is the signal to be amplified. Hope this helps. Good luck.

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