Industry Patents
Patent: 7659673
Methods and Apparatus For Providing a Controllably Variable Power to a Load
(Click image for PDF of full patent)
| Patent Number: |
7659673 |
| Title: |
Methods and Apparatus For Providing a Controllably Variable Power to a Load |
| Abstract: |
Methods and apparatus for providing and controlling power to at least some
types of 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
source 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. Based on various power driver configurations,
lighting apparatus incorporating one or more power drivers for one or
more LED-based loads may be implemented, and multiple such lighting
apparatus may be coupled together to form a lighting network in which
operating power is efficiently provided throughout the network.
|
| Country of Issue: |
US |
| First Named Inventor: |
Lys |
| Assignee: |
Philips SSL |
| Continuation or Divisional of: |
|
| International Classification: |
H05B 41/16 |
| US Classification: |
315/247 |
| Issue Date: |
02-09-2010 |
| Filing Date: |
03-14-2005 |
| Application : |
11/079448 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
7659673 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
7659673 at Google Patents |
1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.
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