Electric lamp and discharge devices: systems – With cathode or cathode heater supply circuit – Discharge device and/or rectifier in the cathode or heater...
Reexamination Certificate
2006-07-25
2006-07-25
Philogene, Haissa (Department: 2828)
Electric lamp and discharge devices: systems
With cathode or cathode heater supply circuit
Discharge device and/or rectifier in the cathode or heater...
C315S207000, C315S2090SC, C315S20000A, C315S282000, C315S291000, C315SDIG002
Reexamination Certificate
active
07081709
ABSTRACT:
A reliable and efficient circuit for lighting a discharge lamp is described. An inverter accepts a direct current supply voltage and outputs an alternating current lamp voltage to drive the discharge lamp at a relatively high frequency. In one embodiment, the inverter includes semiconductor switches in a full-bridge configuration, a transformer feedback circuit to control the semiconductor switches, and a series L-C resonant circuit. In one embodiment, the inverter includes semiconductor switches in a half-bridge configuration, a transformer feedback circuit to control the semiconductor switches, and a series L-C resonant circuit. The inverter can drive multiple discharge lamps in a parallel configuration. A bypass circuit can also be coupled across a cathode of the discharge lamp to extend the life of the discharge lamp. The bypass circuit activates when a lamp cathode wears out.
REFERENCES:
patent: 3691450 (1972-09-01), Cox
patent: 3778677 (1973-12-01), Kriege
patent: 3818312 (1974-06-01), Luursema et al.
patent: 4008414 (1977-02-01), Agnew
patent: 4075476 (1978-02-01), Pitel
patent: 4104715 (1978-08-01), Lawson, Jr.
patent: 4319164 (1982-03-01), Tulleners
patent: 4353009 (1982-10-01), Knoll
patent: 4408270 (1983-10-01), Anderson et al.
patent: 4459516 (1984-07-01), Zelina et al.
patent: 4949013 (1990-08-01), Zuchtriegel
patent: 5051661 (1991-09-01), Lee
patent: 5105127 (1992-04-01), Lavaud et al.
patent: 5124619 (1992-06-01), Moisin et al.
patent: 5166579 (1992-11-01), Kawabata et al.
patent: 5397965 (1995-03-01), Gorille et al.
patent: 5402043 (1995-03-01), Nilssen
patent: 5414327 (1995-05-01), Reijnaerts
patent: 5422546 (1995-06-01), Nilssen
patent: 5426349 (1995-06-01), Nilssen
patent: 5459375 (1995-10-01), Nilssen
patent: 5463284 (1995-10-01), Mattas
patent: 5481160 (1996-01-01), Nilssen
patent: 5483127 (1996-01-01), Widmayer et al.
patent: 5559394 (1996-09-01), Wood
patent: 5589742 (1996-12-01), Ueda
patent: 5757142 (1998-05-01), Kong
patent: 5841650 (1998-11-01), Stevens
patent: 5844378 (1998-12-01), LoCascio et al.
patent: 5929573 (1999-07-01), Louwers et al.
patent: 5939836 (1999-08-01), Mita et al.
patent: 5959408 (1999-09-01), Steel et al.
patent: 6731075 (2004-05-01), Pak
patent: 2004/0041524 (2004-03-01), Menna
patent: 10125510 (2002-12-01), None
patent: 0585 727 (1994-03-01), None
patent: 01043999 (1989-02-01), None
patent: 1457821 (1992-09-01), None
patent: WO 90/09087 (1990-08-01), None
Annex to Form PCT/ISA/206—Communication Relating to the Results of the Partial International Search (PCT/US 02/35157).
McGraw-Hill-Encyclopedia of Science & Technology (5thEdition, 1982) topic entitledFluorescent Lamp,pp. 515-517.
David P. Stern & Mauricio Peredo, article entitled #7a.The Fluorescent Lamp: A Plasma You Can Use,dated Feb. 16, 2001, http://www-istp.gsfc.nasa.gov/Education/wflour.html.
Chapter 6 of BOMI 1994, 3rdqtr., entitledLighting Systems,pp. 6-21 to 6-23, 6-25, 6-29 to 6-30 6-32 to 6-39.
Article entitledHow to Fix a Fluorescent Tube,dated Apr. 24, 2000; http://www.otol.fi/˜oltaja00/english/fluoresc.htm.
TAB Books, Division of McGraw-Hill, Inc., article entitledBuild Your Own Laser, Phaser, Ion Ray Gun&Other Working Space-Age Projects;by Robert E. Iannini; pp. 212, 213, 262 through 267; copyright 1983.
Abraham I. Pressman,Switching Power Supply Design, 2nded., 1998, pp. 93-101.
AMPR LLC
Knobbe Martens Olson & Bear LLP
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