Adjusting the fixed (3 terminal) voltage regulators

extends:: Adjusting the adjustable voltage regulator , Apr 5, 2015

(Std./)Simple v. :

with LT1086 (1.24V - adjustable) it gives seemingly errorless output ?

Op. Amp. v. :

it looks it is impossible to gain the ±2µV error level with just the one op-amp ►►
(the reference must be flawless as it shows on the graph. ???)
The Red LED-s are so cool for voltage adjustment -- their non-linear range begins below 275µA , they have sharper "turn on" than conventional detergents -- which puts them to (Diode,Stabistor,Red-LED,Zener Diode) this position - i assume . . .

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Update :: 2016-03-11 ► Insane :

 

seemingly "absolute" voltage reference at 1 Hz

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[Eop]

Regulators test

Custom based on behavioral Op.Amp model (voluntary random LT1097 - the very first i got interested in)

LT1086 behavioral model

LM317 model based on Spice discreet component models

what it seems - is - that with the high power output loads the basic connection scheme works best for the LM317 (i didn't test 'em all of course)

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