Quote Originally Posted by mikebar View Post
Uhmmm..
It could work.
I was looking for some more sophisticated solution (like transistors that regulate the current flow right to the thereshold)...
It's called 'foldback' in a regulator circuit.
http://en.wikipedia.org/wiki/Foldbac..._supply_design)
Totally useless link, but it might get you started...

EDIT:
http://www.national.com/appinfo/power/files/f4.pdf
Better link...