Solar powered battery charger using switch capacitor voltage converters

摘要

The invention provides a charging device that uses switched capacitor voltage converters to charge a battery using solar power. The charger uses boosting topology to efficiently use solar module photovoltaic power. The boosting topology enables a lower voltage to be used resulting in reduced cutting and soldering of photovoltaic cells. The battery charger has overcharge protection and uses inductor-less circuitry.