Dimming control for emergency lighting systems
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United States of America Patent
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Jan 31, 2017
Issued Date -
N/A
app pub date -
May 8, 2012
filing date -
Dec 12, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An emergency lighting module for providing emergency power to a solid state luminaire includes a microcontroller, and a detector coupled to the microcontroller and configured to detect a status signal indicative of a status of an AC line voltage, the emergency lighting module is configured to output a dimming control signal to the solid state luminaire in response to a reduction of the AC line voltage. The microcontroller is further configured to output a select signal to the solid state luminaire to cause the solid state luminaire to dim in accordance with the dimming control signal when the dimming control signal is output.
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