In this charger the current is limited by the incandescent lamp. Lamps from 40 to 100 W can be used and even connected in parallel, depending on the load.
Found in Ferranti's 1969 documentation this circuit has a maximum operating frequency of 7.5 MHz....
This circuit was found in a 2005 Linear Technology application manual. The circuit is for 48 V...
This circuit was found in a 90s Electronic Engineering. The quadruple operational amplifier can be...