Industry Patents
Patent: 9420650
Circuitry for LED Light Dimmer
(Click image for PDF of full patent)
| Patent Number: |
9420650 |
| Title: |
Circuitry for LED Light Dimmer |
| Abstract: |
Some embodiments relate to dimmer control circuitry for LED lighting,
comprising: phase control circuitry to control the supply of voltage to
at least one LED load, wherein the phase control circuitry comprises an
AC switch to selectively provide voltage to the LED load for a first
portion of a half cycle of an AC supply voltage, and a drive component to
drive the AC switch so that the AC switch remains on for the first
portion of the half cycle; and load switching circuitry to couple a
dissipative load to an output of the AC switch during a second portion of
the half cycle, wherein the second portion overlaps with the first
portion.
|
| Country of Issue: |
US |
| First Named Inventor: |
Sykes, Pritchard, Deletic, Burchell |
| Assignee: |
LSC Lighting Systems |
| Continuation or Divisional of: |
|
| International Classification: |
H05B 33/08 |
| US Classification: |
H05B 33/0818 |
| Issue Date: |
08-16-2016 |
| Filing Date: |
12-03-2014 |
| Application : |
14/559040 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
9420650 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
9420650 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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