This high-power shield is isolated from the control. The circuit was found in the June 1995 Electronics Now magazine. The Triac must be equipped with a heat sink.
This configuration was obtained in a 1977 FET Databook. The circuit can be practically any JFET...
The integrated circuit used in this regulator is not very common today. The circuit is from old...
The operational used is uncommon today, but equivalents can be used. Unlike the previous one, this...