Driving circuit for cold-cathode tube

Details Driving circuit for cold-cathode tube Driving circuit for cold-cathode tube

2005-11-04

2008-11-11

Dinh, Trinh Vo (Department: 2821)

Electric lamp and discharge devices: systems

Plural load device systems

C315S2090SC

Reexamination Certificate

active

07449848

ABSTRACT:
A cold-cathode tube driving circuit for driving a plurality of substantially-C-shaped cold-cathode tubes, includes: a first transformer2having primary windings which induce voltages, and secondary windings which apply voltages of opposite polarities (−V, +V) to respective ends of the respective substantially-C-shaped cold-cathode tubes; and a second transformer3having third and fourth primary windings which respectively induce voltages, and third and fourth secondary windings which apply voltages of opposite polarities (−V, +V) to respective ends of the respective substantially-C-shaped cold-cathode tubes. In the cold-cathode tube driving circuit, the first and second transformers2, 3apply an in-phase voltage to adjacent ends of the substantially-C-shaped cold-cathode tubes.

REFERENCES:
patent: 2005/0099127 (2005-05-01), Chen et al.
patent: 2005/0146291 (2005-07-01), Lee
patent: 2006/0120109 (2006-06-01), Inoue et al.
patent: 59-130090 (1984-07-01), None
patent: 59-201398 (1984-11-01), None
patent: 8-45675 (1996-02-01), None
patent: 2000-262065 (2000-09-01), None
patent: 2002-164185 (2002-06-01), None
patent: 2002-175891 (2002-06-01), None
patent: 2002-278471 (2002-09-01), None
patent: 3101566 (2004-02-01), None
patent: 2004-281134 (2004-10-01), None
Japanese Office Action for Japanese patent application No. 2004-321039, mailed Jun. 2, 2006, and English translation thereof, 4 pages.
Japanese Office Action for Japanese Application 2004-321039 mailed on Feb. 7, 2007 (5 pages).
Office Action dated Nov. 26, 2007 issued by the Japanese Patent Office in Application No. 2004-321039, 3 pages.

Affiliated with

Also associated with

Rating

Driving circuit for cold-cathode tube does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Driving circuit for cold-cathode tube, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Driving circuit for cold-cathode tube will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4045406