This circuit was obtained from the Encyclopedia of Electronic Circuits volume 5 of 1995. The circuit uses the 4001 CMOS to obtain hysteresis in the sensor feedback.
This filter that can use any operational was found in a French documentation from 1982. The power...
In the figure we present an extremely simple circuit of a voltage source regulated by a zener...
The maximum current of this power supply is 2 A and the output voltage can be set between 6 and 24 V. The...