This 24V to 36V linear battery charger is long overdue. While this is an old circuit technique, it is optimized for charging higher voltage lead-acid battery packs, and could be used on other types of ...

This is an extension of the previously published External Battery Charger Control (12V). It adapts the control for 6, 24 & 48VDC systems. Some of the differences are subtle so pay close attention. The ...

The following automatic battery-charger design is created with a circuit that could qualify as the simplest window comparator ever built around a single transistor (see the figure). It starts ...