I know that diodes are wrong orientation!
I forgot to change in circuit!
I agree with your comment, also I get these results!
I try my design, and change some details and I have found right design
who will work like I think.I can regulate current from couple nA to 2.3mA (in simulation for now).
I write that I need 4mA but real I change to max 2mA and something less!
Then I can use resistor at 100ohms.
And i change levels of voltage of comparator from 1V to 2.5V. Reason is that
I have also some current from comparator that bring voltage, in no working state,
to around 0.3V.
I need in couple days test circuit in real world and i will try my design and your!
Then I will decide what I will use. I think your is better, but I will see!
Thanks anyway!
Added after 2 hours 26 minutes:
What do you think about this schematic!