07233115 is referenced by 221 patents and cites 119 patents.

Multiple lighting apparatus coupled together to form a lighting network, in which operating power is efficiently provided throughout the network based on a distributed DC voltage or a distributed AC voltage. Based on various power driver configurations, each lighting apparatus incorporates one or more power drivers for one or more LED-based loads. In one example, a controlled predetermined power is provided to a load without requiring any feedback information from the load (i.e., without monitoring a load voltage and/or load current). In another example, a “feed-forward” power driver for an LED-based light sources combines the functionality of a DC-DC converter and a light source controller, and is configured to control the intensity of light generated by the light source based on modulating the average power delivered to the light source in a given time period, without monitoring and/or regulating the voltage or current provided to the light source. In various examples, significantly streamlined circuits having fewer components, higher overall power efficiencies, and smaller space requirements are realized.

Title
LED-based lighting network power control methods and apparatus
Application Number
11/79928
Publication Number
7233115 (B2)
Application Date
March 14, 2005
Publication Date
June 19, 2007
Inventor
Ihor A Lys
Milton
MA, US
Agent
Wolf Greenfield & Sacks P C
Assignee
Color Kinetics Incorporated
MA, US
IPC
G05F 1/00
View Original Source