Obtained in an Electronic Design from 1968, this circuit has the voltages determined by the zener diodes. Transistors can be modern equivalents.
This source, obtained in the 1982 SGS manual, has pre-regulation and provides a current according to...
September 2017 - Texas Instruments' new TPS720 and TPS720-Q1 low dropout voltage (LDO) linear...
This interesting circuit triggers the alarm when sunlight hits the sensor. The circuit can be used to...