Protection for external electrode fluorescent lamp system

Details Protection for external electrode fluorescent lamp system Protection for external electrode fluorescent lamp system

2006-10-24

2006-10-24

Tran, Thuy Vinh (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

C315S220000

Reexamination Certificate

active

07126289

ABSTRACT:
The present invention provides a driving circuit with protection function for driving a set of external electrode fluorescent lamps (EEFL). The drive circuit includes a transformer connected to the set of EEFLs, a switching network connected to the transformer which delivers power to the transformer, a sensing circuit connected to the set of EEFLs which detects disconnection if one light source is disconnected, and a controller connected to the switching network which controls the switching network to reduce the total current supplied to the EEFLs which remain connected, if the sensing circuit detects that one EEFL is disconnected. Appropriate protection can therefore be implemented when the EEFL is disconnected on one end or both ends.

REFERENCES:
patent: 6570344 (2003-05-01), Lin
patent: 6930898 (2005-08-01), Jeon et al.
patent: 2004/0056830 (2004-03-01), Lee et al.
patent: 2004/0183465 (2004-09-01), Jang
patent: 2005/0078080 (2005-04-01), Kang et al.
patent: 2005/0174818 (2005-08-01), Lin et al.

Affiliated with

Also associated with

Rating

Protection for external electrode fluorescent lamp system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Protection for external electrode fluorescent lamp system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Protection for external electrode fluorescent lamp system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3624248