Multi-channel lighting fixture having multiple light-emitting diode drivers
AssigneeLutron Technology Company LLC
InventorsVenkatesh Chitta, Arya Abraham
Life of this patent
Estimating the term…
Abstract
A lighting control system for controlling a cumulative light emitted by a lighting fixture having a plurality of LED light sources may comprise a plurality of LED drivers adapted to be coupled to a respective one of the LED light sources and configured to control an intensity of the respective LED light source, and a controller configured to transmit a single digital message for controlling the cumulative light emitted by the lighting fixture. Each of the plurality of LED drivers is configured to adjust the intensity of the respective LED light source to a preset intensity in response to the single digital message transmitted by the controller.
Claims20
A lighting fixture having comprising:
- a plurality of LED light sources;
- a plurality of LED drivers adapted to be coupled to a respective one of the LED light sources and configured to control an intensity of the respective LED light source;
- and
- a control module configured to control the plurality of LED drivers to control an intensity and a color temperature of a cumulative light emitted by the lighting fixture, the control module configured to receive at least one digital message for controlling the cumulative light emitted by the plurality of LED sources of the lighting fixture via a communication link;
- wherein the control module is further configured to control the intensity and the color temperature of the cumulative light emitted by the lighting fixture according to one of a plurality of color trajectories in response to a single digital message received via the communication link, wherein the single digital message includes a desired intensity for the cumulative light emitted by the lighting fixture and each of the plurality of color trajectories defines a plurality of color temperatures corresponding to a plurality of respective desired intensities.
A method of controlling a cumulative light emitted by a lighting fixture having a plurality of light-emitting diode (LED) light sources of different colors, the method comprising:
- controlling a plurality of LED drivers to control respective intensities of each of the plurality of LED light sources in order to control an intensity and a color temperature of the cumulative light emitted by the lighting fixture;
- receiving at least one digital message for controlling the cumulative light emitted by the plurality of LED sources of the lighting fixture via a communication link;
- and
- controlling the intensity and the color temperature of the cumulative light emitted by the lighting fixture according to one of a plurality of color trajectories in response to a single digital message received via the communication link;
- wherein the single digital message includes a desired intensity for the cumulative light emitted by the lighting fixture and each of the plurality of color trajectories defines a plurality of color temperatures corresponding to a plurality of respective desired intensities.
Dependencies are inferred from the claim text.