Load driving device and load driving method

Details Load driving device and load driving method Load driving device and load driving method

2008-01-01

2008-01-01

Owens, Douglas W. (Department: 2821)

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

With power factor control device

C315S246000, C315S229000, C315S308000, C315S360000

Reexamination Certificate

active

11346341

ABSTRACT:
Provided is a load driving device controlling a drive of a load including a driver for periodically turning on/off a current according to a switching clock signal and supplying a average driving current to the load. Further provided is a dimming controller for controlling the driver to turn on/off the drive of the load based on a dimming step. Also provided is a controller for controlling at least one of the driver and the dimming controller so as to make a step interval of the dimming step and a switching clock period of the switching clock signal the same. A load driving device is provided that is capable of stably controlling the dimming of a drive of a load, by improving a linear response characteristic of a driving current according to a dimming control.

REFERENCES:
patent: 5424618 (1995-06-01), Bertenshaw et al.
patent: 6346778 (2002-02-01), Mason et al.
patent: 6864643 (2005-03-01), Min et al.
patent: 6930898 (2005-08-01), Jeon et al.
patent: 7102340 (2006-09-01), Ferguson
patent: 2004/0179003 (2004-09-01), Jang
patent: 2004/0196225 (2004-10-01), Shimada
patent: 2005/0110732 (2005-05-01), Kim
patent: 2005/0156536 (2005-07-01), Ball
patent: 2005/0225259 (2005-10-01), Green
patent: 2006/0238174 (2006-10-01), Russell et al.
patent: 11-305198 (1999-11-01), None
patent: 2000-214825 (2000-08-01), None
patent: 2001-272938 (2001-10-01), None
patent: 2004-075038 (2004-08-01), None
“Application Note 40 LEDs vs. CCFL Final”; Micrel Inc., Aug. 2002, no date available.
“Application Note 40 LEDs vs. CCFL Final”; Micret Inc., Aug. 2002.

Affiliated with

Also associated with

Rating

Load driving device and load driving method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Load driving device and load driving method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Load driving device and load driving method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3937591