Power harvesting system for battery operated appliances

摘要

A system of harvesting electrical power for use within a battery operated device includes a battery and a motor driven by the battery to impart rotational energy to a first shaft. The first shaft drives a multi-phase generator and produces output voltage signals with respectively untimed phase responses. A rectification circuit combines the voltage signals into a combined DC voltage output, and an inverter connected to the rectification circuit converts the DC voltage output to an AC voltage output. A battery charger connected to the inverter receives the AC voltage output for charging the battery. The harvested power includes power from voltage sources with unregulated, or untimed, phase responses.

主权项

1. A system for powering a lawn mower with harvested energy sources, the system comprising:
a bank of batteries; a motor driven by said bank of batteries and imparting rotational energy to a shaft; a multi-phase generator driven by said rotating shaft and producing generator voltage signals with respectively untimed phase responses; a generator rectification circuit combining said generator voltage signals into a combined DC voltage generator output; a solar cell panel producing solar voltage signals; a solar rectification circuit creating a solar DC voltage signal; an inverter receiving said generator voltage signals and said solar DC voltage signal and producing an AC voltage output; a battery charger connected to said inverter and receiving said AC voltage output for charging said battery.