Driver apparatus for a gas discharge lamp

Details Driver apparatus for a gas discharge lamp Driver apparatus for a gas discharge lamp

2008-04-18

2011-12-13

Vo, Tuyet Thi (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

Automatic regulation

C315S224000, C315S247000, C315S2090SC, C315S291000

Reexamination Certificate

active

08076871

ABSTRACT:
A driver apparatus (100) for driving a gas discharge lamp (L) comprises a commutator circuit (5) having a bridge topology with four switches (T1-T4) controlled by a controller (6), with an inductor (L2) arranged in series with the lamp and a capacitor (C3) arranged in parallel with the lamp, the inductor (L2) and the capacitor (C3) having a parallel resonance frequency fR. In a steady-state mode, the controller drives the four switches (T1-T4) at a relatively low commutation frequency of the order of 100 Hz. For igniting the lamp when it is still hot, the controller drives the four switches (T1-T4) at a first ignition frequency fP1=fR
1, n1being an odd integer. For igniting the lamp when it is cold, the controller drives the four switches (T1-T4) at a second ignition frequency fP2=fR
2, n2being an odd integer larger than n1.

REFERENCES:
patent: 6191537 (2001-02-01), Celso
patent: 6392365 (2002-05-01), Zhou et al.
patent: 2002/0130626 (2002-09-01), Okamoto et al.
patent: 2004/0004447 (2004-01-01), Trostl et al.
patent: 2004/0257001 (2004-12-01), Langeslag et al.
patent: 2005/0146285 (2005-07-01), Lurkens
patent: 9638024 (1996-11-01), None
patent: 03039206 (2003-05-01), None

Affiliated with

Also associated with

Rating

Driver apparatus for a gas discharge lamp does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Driver apparatus for a gas discharge lamp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Driver apparatus for a gas discharge lamp will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4297165