The integrated circuit used in this detector is uncommon today. We found it in a documentation from the 70s. Detection is done by an optical camera with LEDs and a photo sensor.
With this circuit it is possible to regulate a source of up to 9 A using 3 LM350. The integrated...
This circuit was found in the SGS manual of linear integrated circuits of 1982. The circuit...
When the input of this circuit goes to high level, the LEDs start to flash alternately. The...