Method and apparatus for increasing dimming range of solid state lighting fixtures
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 27, 2016
Grant Date -
May 2, 2013
app pub date -
Mar 1, 2011
filing date -
Mar 18, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A device for controlling levels of light output by a solid state lighting load at low dimming levels includes a bleed circuit connected in parallel with the solid state lighting load. The bleed circuit includes a resistor and a transistor connected in series, the transistor being configured to turn on and off in accordance with a duty cycle of a digital control signal when a dimming level set by a dimmer is less than a predetermined first threshold, decreasing an effective resistance of the bleed circuit as the dimming level decreases.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully