DIMMING CONTROL FOR EMERGENCY LIGHTING SYSTEMS
First Claim
1. An emergency lighting module for providing emergency power to a solid state luminaire, the emergency lighting module comprising:
- 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, wherein the emergency lighting module is configured to output a dimming control signal to the solid state luminaire in response to the status signal.
3 Assignments
0 Petitions
Accused Products
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.
26 Citations
20 Claims
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1. An emergency lighting module for providing emergency power to a solid state luminaire, the emergency lighting module comprising:
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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, wherein the emergency lighting module is configured to output a dimming control signal to the solid state luminaire in response to the status signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An emergency lighting module for providing emergency power to a solid state luminaire, the emergency lighting module comprising:
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a microcontroller; an AC detector coupled to the microcontroller and configured to detect a presence of an AC line voltage, wherein 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; and an input configured to receive an external dimming signal and to generate the dimming control signal in response to the external dimming signal when no reduction of the AC line voltage is detected. - View Dependent Claims (15, 16, 17, 18)
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19. An emergency lighting module for providing emergency power to a solid state luminaire, the emergency lighting module comprising:
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a microcontroller; a plurality of inputs configured to receive a plurality of external dimming signals; and a dimming control output coupled to the solid state luminaire; wherein the microcontroller is configured to generate a dimming control signal and to output the dimming control signal to the solid state luminaire in response to a selected one of the external dimming signals. - View Dependent Claims (20)
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Specification