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RE: Has anyone used LM317 as constant current source

76.90.100.230

Tre'

In Reply to: RE: Has anyone used LM317 as constant current source posted by Leo loves music on April 08, 2025 at 20:14:21

I think you would be better off with depletion mode mosfets.

Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"

https://www.google.com/search?q=depletion+mode+mosfets+as+CC (Open in New Window)

Follow Ups:

ditto Tre - JKT 20:33:29 04/08/25 (2)
I would recommend IXYS 8N100D2 in cascode (if you can source them).

"It is better to remain silent and thought a fool, then speak and remove all doubt." A. Lincoln
- RE: ditto Tre - PakProtector 06:03:32 05/15/25 (0)
  The 500V variant works quite well also. I survived long enough with 400V 2540N5's to think the extra 100V d-s tolerance is a fine improvement. Still like 3545N3 for the low voltage element.
  
  Douglas
  
  Friend, I would not hurt thee for the world...but thou art standing where I am about to shoot.
- Mouser has 8N100D2 in stock - JKT 20:52:16 04/08/25 (0)
  Mouser has them back in stock, about 850. Get them before the tariffs hit.
  
  "It is better to remain silent and thought a fool, then speak and remove all doubt." A. Lincoln

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