Multiple chip voltage feedback technique for driving LED's
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 30, 2016
Grant Date -
Nov 7, 2013
app pub date -
Nov 3, 2009
filing date -
Nov 3, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A multiple chip voltage feedback technique allows multiple strings of LED's and current sinks to be efficiently powered by a DC-to-DC voltage converter within an appliance. A connected series of differential amplifiers or multiplexers are used to monitor the voltages between the connected LED's and the current sinks, progressively determine the lowest voltage, and then feed the lowest voltage back to the voltage converter. The DC-to-DC voltage converter monitors this lowest voltage and adjusts its output in order to ensure that the strings have adequate voltage with which to function, even as the LED's have different forward voltages and the strings are asynchronously enabled and disabled.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
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