This constant current charger from 1997 Linear Technology Applications uses common components at the time. The transformer is the critical component, being designed according to the load voltage.
This circuit is from a 1968 Electronic Design. The components are from the era and the operating...
The idea of this circuit found in a Radio Electronics from January 1966. The idea of the...
The illustrated circuit uses the AUIRS2301 S from International Recfifier (www.irf.com) and is...