You will never believe I learned how the PRE REGULATOR works | Power supply design series ep. 2B

I think I solved the issue from the last video…. I could have gotten the Shockley equation wrong as well as what the biasing means…. I am pretty sure there is a voltage rise from the base to the emitter so I just added it in the end….. the accuracy of this is relatively meaningless to me as I have built the circuit first hand and can design based on that…. Again I’m just trying to understand how it works….