SUPPLEMENTAL POWER SYSTEM FOR POWER OVER ETHERNET LIGHTING LUMINARIES
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United States of America Patent
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Issued Date -
Feb 22, 2018
app pub date -
Aug 4, 2017
filing date -
Aug 19, 2016
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Abstract
A power and control module for a Power over Ethernet (PoE) light emitting diode (LED) lighting system includes an input channel for receiving PoE input power from a PoE switch, an output channel for providing PoE output power to a plurality of LED light fixtures and a power transfer unit coupled between the input and output channel for providing the PoE input power and/or a secondary input power to the output channel as the PoE output power. A secondary power input unit selectively provides secondary power to the power transfer unit. A processor is controls the power transfer unit to adjust an amount of PoE input power and secondary input power to obtain the PoE output power. Secondary input power can be an emergency power source during line power outages. Secondary input power could be a renewable energy power source used preferentially to the PoE input power when available.
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