Found in the July 1994 Electronics Now magazine, this circuit drives a relay up to 12 V depending on the power supply. The transistor can be general purpose.
May 2017 - This new Ricoh 4 A current device is now available from Mouser Electronics. The device...
The purpose of this circuit is to disconnect the battery in case of an excessive charge current,...
This circuit produces signals that depend on the input control voltage. It is a Voltage Controlled...