Half-bridge CCFL driving apparatus

Details Half-bridge CCFL driving apparatus Half-bridge CCFL driving apparatus

2006-10-12

2008-12-16

Nguyen, Matthew V (Department: 2838)

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

C363S098000, C363S132000

Reexamination Certificate

active

07466567

ABSTRACT:
A half-bridge CCFL driving apparatus uses a bridge rectifier to convert AC into a DC voltage and stores the DC voltage in a capacitor unit. The capacitor unit averages the DC voltage into two voltages that are equal for outputting. Then, the primary winding of the transformer is connected with the capacitor unit via a half-bridge switch to obtain the two equal voltages. The secondary winding of the transformer is connected with at least one harmonic capacitor. The PWM controller driving the half-bridge switch via an isolated driving element by turns means to transmit the two equal voltage outputted from the capacitor unit to the primary winding of the transformer by turns. Then, the serial leakage inductance produced at the secondary winding of the transformer works with the harmonic capacitors to generate a continuous sine-wave voltage that is supplied to the CCFL.

REFERENCES:
patent: 5055993 (1991-10-01), Miyata et al.
patent: 6351401 (2002-02-01), Scheel et al.
patent: 6396716 (2002-05-01), Liu et al.
patent: 6400584 (2002-06-01), Sabate et al.
patent: 6829151 (2004-12-01), Elferich et al.
patent: 7321205 (2008-01-01), Hsieh

Affiliated with

Also associated with

Rating

Half-bridge CCFL driving apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Half-bridge CCFL driving apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Half-bridge CCFL driving apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4025084