Balanced power supply circuit for multiple cold-cathode fluoresc

Details Balanced power supply circuit for multiple cold-cathode fluoresc Balanced power supply circuit for multiple cold-cathode fluoresc

1999-02-12

2000-08-15

Wong, Don

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Transformer in the supply circuit

315224, 315291, H05B 4116

Patent

active

061041467

ABSTRACT:
The present invention provides a CCFL driving circuit having a parallel-arranged transformer system and a feedback loop positioned to sense the current in one of the lamps in the system. Each CCFL in the system is driven by the secondary side an individual transformer. Based on the current sensed in the feedback loop, a controller supplies the appropriate driving voltage to the primary side of the transformers, which in turn powers each CCFL. Since the primary sides of the transformers are arranged in parallel, and since each CCFL is connected at a common node, it is ensured that each transformer receives identical voltage, and the current in each CCFL loop is balanced.

REFERENCES:
patent: 5287040 (1994-02-01), Lestician
patent: 5420779 (1995-05-01), Payne
patent: 5430641 (1995-07-01), Kates
patent: 5615093 (1997-03-01), Nalbant
patent: 5619402 (1997-04-01), Liu
patent: 5818172 (1998-10-01), Lee

Affiliated with

Also associated with

Rating

Balanced power supply circuit for multiple cold-cathode fluoresc does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2010275