Photocontrol for luminaire consumes very low power
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United States of America Patent
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Oct 11, 2016
Grant Date -
Jan 29, 2015
app pub date -
Jan 17, 2014
filing date -
Jul 24, 2013
priority date (Note) -
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Abstract
A photocontrol includes a switch that consumes very low power when the switch is turned ON and when it is turned OFF. The photocontrol can provide low-power digital control signals to high-impedance inputs of control devices that control the delivery of power to load devices, such as LED drivers that control the delivery of power to arrays of LEDs. The photocontrol also can provide power signals to control devices that control the delivery of power to light sources, such as electronic transformers that control the delivery of power to fluorescent lamps. The photocontrol may include a comparator that causes the photocontrol to have switching hysteresis.
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