This circuit is from Motorola's 1990 Linear Databook. We can implement it with other operational amplifier. The power supply must be symmetrical.
This battery charger was found in the Electronics Experimenter Special Projects of 1983. The...
This circuit is from an English magazine of 1974, but can still be assembled with the replacement of...
Motors up to 2 A DC can be controlled by this circuit that we find in the manual for linear...