This small automotive NiCad battery charger uses only passive components and has the number of diodes given by the desired voltage at maximum charge. The circuit has a charge indicator in the form of an LED.
This circuit was found in an American 1980s documentation. The integrated circuit used is uncommon...
September 2016 - Mouser Electronics already has the new TPS54335-2A from Texas Instruments...
We found this circuit in a Popular Electronics from the 90's. The circuit uses three SCRs to...