We found this circuit in a 1997 documentation. It can be used in any common 12 V source and has two relays that disconnect the source in the event of a short circuit.
This very low voltage regulator for 3 V input (2 batteries) was obtained in a documentation from...
This circuit consists of an adapter that allows the reading of low currents at various scales. A...
This circuit generates signals that can be adjusted in a small range around the frequency of the...