This circuit was found in Maxim's documentation from the 90's. The configuration uses components from the time but can be adapted to use modern equivalents.
This conventional power supply circuit with the LM317 was found in a 1987 publication and its...
July 2017 - The new TLP240 and TLP241A optical couplers with MOSFET output, manufactured by...
This is the receiver for the previous circuit found in the November 1991 Radio Electronics...