Power harvesting system for battery operated appliances
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United States of America Patent
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Jul 14, 2015
Grant Date -
Jul 17, 2014
app pub date -
Oct 15, 2013
filing date -
Oct 15, 2012
priority date (Note) -
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Abstract
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.
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