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 circuit consists of a monostable multivibrator using the LM3900 transconductance operational...
I found this circuit in a Popular Electronics from November 1999. The magazine is no longer...
We found this circuit in a 1972 RCA technical documentation. The comparator can be any type and C1...