Is there a way to use feedback in a transistor voltage follower circuit so that it would come as close as possible to perfectly matching the input voltage? Pairing an NPN with a PNP comes pretty close (with the exception of the huge peak low and high differences caused by the biasing of the transistors), but, I'm sure the results could get even better than that, ideally the orange line should stay flat at zero volts the whole time. I was thinking somewhere along the lines of maybe another transistor that would saturate high if there's a voltage difference between the output of the voltage buffer and the input voltage being buffered and further turn on or off the original transistor, depending upon whether the difference is positive or negative with respect to the input voltage. BUT.... I WANT TO DO IT THE HARD WAY; (NO OP AMPS OR MOSFET'S), because I'd rather learn how the op amps and other ic's achieve such accurate results. Any help is never taken for granted and is always appreciated :)
Thanks.
