LED lighting control integrated circuit having embedded...

Details LED lighting control integrated circuit having embedded... LED lighting control integrated circuit having embedded...

2011-08-16

2011-08-16

Owens, Douglas W (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

C315S307000

Reexamination Certificate

active

07999491

ABSTRACT:
For providing a compact high-precision lighting control means to drive an LED lighting module, a lighting control integrated circuit is set forth to perform an accurate lighting control. At least one nonvolatile memory is embedded in the lighting control integrated circuit for storing a plurality of lookup tables. One lookup table provides related data for setting the driving currents of the LED lighting module based on spacing or pitch of LED disposition of the LED lighting module. Another lookup table provides related data to recover uniformity for different LED damage situations of the LED lighting module. The other lookup tables are applied to perform compensation processes on the driving currents concerning temperature variation, ambient light intensity, aging degradation, and power-on time. In addition, a signal processing unit, a pulse-width-modulation signal generating module, and a driving module are incorporated in the lighting control integrated circuit for signal processing and current driving.

REFERENCES:
patent: 6963175 (2005-11-01), Archenhold et al.
patent: 7180252 (2007-02-01), Lys et al.
patent: 7202613 (2007-04-01), Morgan et al.
patent: 2002/0167471 (2002-11-01), Everitt
patent: 2007/0291483 (2007-12-01), Lys

Affiliated with

Also associated with

Rating

LED lighting control integrated circuit having embedded... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with LED lighting control integrated circuit having embedded..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and LED lighting control integrated circuit having embedded... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2642764