The circuit presented is based on the National Semiconductor's LM3524, a component not common today. The circuit is from the 1994 Linear Applications Handbook.
This circuit is suitable for incandescent lamps but can be adapted to work with LEDs. The circuit is...
We find this circuit in the 80's own component manual itself. The characteristics of the circuit...
This source, obtained in the 1982 SGS manual, has pre-regulation and provides a current according to...