Electronic power circuit for gas discharge lamps

Details Electronic power circuit for gas discharge lamps Electronic power circuit for gas discharge lamps

2007-02-20

2007-02-20

Vu, David (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

C315S307000

Reexamination Certificate

active

10950649

ABSTRACT:
An input dc-voltage, usually obtained from an AC-mains voltage through a pre-connected rectifier and Power Factor Corrector, is converted by a series connection of two power transistors to an ac-voltage, which, via an LC section is presented to a gas discharge lamp.For starting the lamp, the power transistors are switched with a frequency which is slightly higher than approximately one-third or one-fifth of the resonance frequency of the LC section.Circuits have been provided for limiting the output voltage, for limiting the lamp current and for stabilizing the lamp output. Safety circuits switch the power circuit off if the lamp does not ignite or if the lamp exhibits rectifying effect.

REFERENCES:
patent: 3611021 (1971-10-01), Wallace
patent: 4060751 (1977-11-01), Anderson
patent: 5245253 (1993-09-01), Quazi
patent: 5289083 (1994-02-01), Quazi
patent: 5463284 (1995-10-01), Mattas
patent: 5563473 (1996-10-01), Mattas et al.
patent: 5569984 (1996-10-01), Holtslag
patent: 5623187 (1997-04-01), Caldeira et al.
patent: 5844380 (1998-12-01), Siepkes
patent: 5914571 (1999-06-01), Beasley
patent: 6211620 (2001-04-01), Gyoten et al.
patent: 2002/0153849 (2002-10-01), Ribarich
patent: 0477621 (1992-04-01), None
patent: 2279187 (1994-12-01), None
patent: WO97/43875 (1997-11-01), None

Affiliated with

Also associated with

Rating

Electronic power circuit for gas discharge lamps does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3886641