Emergency lighting systems and methods for solid state lighting apparatus
First Claim
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1. An emergency lighting module for providing emergency power to a solid state luminaire, the emergency lighting module comprising:
- a first output configured to supply a DC output voltage to the solid state luminaire responsive to a reduction of an AC line voltage;
a first input configured to receive a DC input voltage from the solid state luminaire, the solid state luminaire comprising a lighting board, which comprises lighting elements, and a lighting control module that is configured to drive the lighting elements responsive to a logical OR of the DC output voltage and the DC input voltage; and
a second input configured to receive a status signal indicative of the status of the AC line voltage.
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Abstract
An emergency lighting module for providing emergency power to a solid state luminaire. The emergency lighting module includes a first input configured to receive a DC input voltage from the solid state luminaire, a second input configured to receive a status signal indicative of the status of an AC line voltage, and a first output configured to supply a DC output voltage to the solid state luminaire. The emergency lighting module is configured to supply the DC output voltage to the solid state luminaire in response to a reduction of the AC line voltage.
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Citations
32 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 first output configured to supply a DC output voltage to the solid state luminaire responsive to a reduction of an AC line voltage; a first input configured to receive a DC input voltage from the solid state luminaire, the solid state luminaire comprising a lighting board, which comprises lighting elements, and a lighting control module that is configured to drive the lighting elements responsive to a logical OR of the DC output voltage and the DC input voltage; and a second input configured to receive a status signal indicative of the status of the AC line voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of operating an emergency lighting module for providing emergency power to a solid state luminaire, comprising:
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receiving a status signal indicative of a status of an AC line voltage; monitoring the AC line voltage, the solid state luminaire comprising a lighting board, which comprises lighting elements, and a lighting control module that is configured to drive the lighting elements responsive to a logical OR of a DC output voltage and a DC input voltage, the DC input voltage being generated in the solid state luminaire responsive to the AC line voltage; and generating the DC output voltage in response to reduction of the AC line voltage. - View Dependent Claims (16, 17, 18, 19, 20, 21)
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22. An emergency lighting module for providing emergency power to a solid state luminaire, the emergency lighting module comprising:
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a first output configured to supply a DC output voltage to the solid state luminaire responsive to a reduction of an AC line voltage; a first input configured to receive a DC input voltage from the solid state luminaire, the solid state luminaire comprising a lighting board, which comprises lighting elements, and a lighting control module that is configured to drive the lighting elements responsive to a logical OR of the DC output voltage and the DC input voltage; a second input configured to receive a status signal indicative of the status of the AC line voltage; and a microcontroller configured to monitor the status signal and to generate a dimming control signal in response to a reduction of the AC line voltage; wherein the emergency lighting module is configured to supply the dimming control signal to the lighting control module. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification