LIGHTING DEVICE
First Claim
1. A lighting control device comprising:
- a housing;
a primary input power connection in the housing for receiving power from a primary power supply network;
a secondary input power connection in the housing for receiving power from a secondary power supply;
an output power connection in the housing for delivering power to one or more light sources; and
electronic circuitry in the housing for controlling delivery of power from the primary and secondary input power connections to the output power connection to control delivery of power to the one or more light sources;
wherein the electronic circuitry comprises;
circuitry that determines an indication of an external electrical loading on a primary power supply network coupled, in use, with the primary input power connection; and
circuitry that varies the power drawn from the primary and secondary input power connections in dependence upon the determined indication of the external electrical loading on the primary power supply network.
1 Assignment
0 Petitions
Accused Products
Abstract
A lighting device has one or more light sources; a primary input power connection; and electronic circuitry for controlling delivery of power from the primary input power connection to the one or more light sources. The electronic circuitry determines an indication of an external electrical loading on a primary power supply network coupled, in use, with the primary input power connection the circuitry varies the power drawn from the primary input power connection in dependence upon the determined indication of the external electrical loading on the primary power supply network. In this way, during times of high demand on the primary supply network, the lighting device can reduce the amount of power drawn from the primary supply.
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Citations
32 Claims
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1. A lighting control device comprising:
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a housing; a primary input power connection in the housing for receiving power from a primary power supply network; a secondary input power connection in the housing for receiving power from a secondary power supply; an output power connection in the housing for delivering power to one or more light sources; and electronic circuitry in the housing for controlling delivery of power from the primary and secondary input power connections to the output power connection to control delivery of power to the one or more light sources; wherein the electronic circuitry comprises; circuitry that determines an indication of an external electrical loading on a primary power supply network coupled, in use, with the primary input power connection; and circuitry that varies the power drawn from the primary and secondary input power connections in dependence upon the determined indication of the external electrical loading on the primary power supply network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19, 20, 22, 24, 25, 26, 28)
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15. (canceled)
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21. (canceled)
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23. (canceled)
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27. (canceled)
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29-30. -30. (canceled)
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31. A lighting control method using a lighting control device having a housing, the method comprising:
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receiving power from a primary power supply network at a primary input power connection in the housing of the lighting control device; receiving power from a secondary power supply at a secondary input power connection in the housing of the lighting control device; delivering power to one or more light sources via an output power connection in the housing of the lighting control device; and controlling delivery of power from the primary and secondary input power connections to the output power connection to control delivery of power to the one or more light sources using control circuitry in the housing of the lighting control device; wherein the controlling comprises; determining an indication of an external electrical loading on the primary power supply network; and varying the power drawn from the primary and secondary input power connections in dependence upon the determined indication of the external electrical loading on the primary power supply network.
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32. (canceled)
Specification