Hi, I am trying to understand the basic concepts of the differential amplifiers topic and am having some difficulties in seeing some crucial points. I've attached this image, and as it's been told the voltage at the emitters is zero. Well I've tried a lot to get this zero result at the emitter terminal but I just can not get it. I've drawn the equivalent pi models and wrote couple of current voltage equations but could not get the voltage across REE exactly zero. I'll be glad if someone can write a good explanation for it. As far as I know there has to be a good one without any made assumptions on the circuit.
Another topic that I am having trouble with is the differential half circuits, well is there a specific technique in order to divide in to two a differential pair? What are the points that I need to focus and analys when trying to work on it?
Another topic that I am having trouble with is the differential half circuits, well is there a specific technique in order to divide in to two a differential pair? What are the points that I need to focus and analys when trying to work on it?
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