SG42291G - Feeding device for controlling the light intensity of at least one discharge lamp, and use of this device - Google Patents

Feeding device for controlling the light intensity of at least one discharge lamp, and use of this device

Info

Publication number
SG42291G
SG42291G SG422/91A SG42291A SG42291G SG 42291 G SG42291 G SG 42291G SG 422/91 A SG422/91 A SG 422/91A SG 42291 A SG42291 A SG 42291A SG 42291 G SG42291 G SG 42291G
Authority
SG
Singapore
Prior art keywords
controlling
light intensity
discharge lamp
feeding device
feeding
Prior art date
Application number
SG422/91A
Other languages
English (en)
Original Assignee
Omega Electronics Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Omega Electronics Sa filed Critical Omega Electronics Sa
Publication of SG42291G publication Critical patent/SG42291G/en

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H05B41/3927—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by pulse width modulation
SG422/91A 1984-02-03 1991-06-07 Feeding device for controlling the light intensity of at least one discharge lamp, and use of this device SG42291G (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8401800A FR2559334B1 (fr) 1984-02-03 1984-02-03 Dispositif d'alimentation pour commander l'intensite lumineuse d'au moins une lampe a decharge et utilisation dudit dispositif

Publications (1)

Publication Number Publication Date
SG42291G true SG42291G (en) 1991-07-26

Family

ID=9300802

Family Applications (1)

Application Number Title Priority Date Filing Date
SG422/91A SG42291G (en) 1984-02-03 1991-06-07 Feeding device for controlling the light intensity of at least one discharge lamp, and use of this device

Country Status (9)

Country Link
US (1) US4649322A (fr)
EP (1) EP0152026B1 (fr)
JP (1) JPS60189196A (fr)
KR (1) KR900000669B1 (fr)
AU (1) AU578263B2 (fr)
CA (1) CA1227528A (fr)
DE (1) DE3563584D1 (fr)
FR (1) FR2559334B1 (fr)
SG (1) SG42291G (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63198294A (ja) * 1987-02-10 1988-08-16 シャープ株式会社 蛍光灯の点灯方式
FR2614748A1 (fr) * 1987-04-29 1988-11-04 Omega Electronics Sa Dispositif d'alimentation d'une lampe a decharge
FR2617363A1 (fr) * 1987-06-26 1988-12-30 Omega Electronics Sa Dispositif d'alimentation d'une lampe a decharge
US5028844A (en) * 1989-02-23 1991-07-02 Matsushita Electric Works, Ltd. DC discharge lamp lighting device
FR2649277B1 (fr) * 1989-06-30 1996-05-31 Thomson Csf Procede et dispositif de gradation de lumiere pour lampe fluorescente d'eclairage arriere d'ecran a cristaux liquides
AU625849B2 (en) * 1989-09-08 1992-07-16 H.P.M. Industries Pty Limited A dimmer control device
US5027041A (en) * 1990-01-16 1991-06-25 Gte Products Corporation Integrated radio-frequency light source for large scale display
US5019750A (en) * 1990-01-16 1991-05-28 Gte Products Corporation Radio-frequency driven display
AU680470B2 (en) * 1992-12-30 1997-07-31 L-3 Communications Corporation Self-contained multifunctional LCD flight indicator
US5440324A (en) * 1992-12-30 1995-08-08 Avionic Displays Corporation Backlighting for liquid crystal display
DE19531458A1 (de) * 1995-08-26 1997-02-27 Telefunken Microelectron Verfahren zum Betrieb einer Leuchtstofflampe
EP1115272A1 (fr) * 2000-01-07 2001-07-11 Issei Yoshitake Méthode et système pour lampe à décharge
JP2007124448A (ja) * 2005-10-31 2007-05-17 Pioneer Electronic Corp スピーカユニット及びスピーカ取付用ブラケット

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3590316A (en) * 1969-03-17 1971-06-29 Westinghouse Electric Corp Phase-controlled universal ballast for discharge devices
US3638070A (en) * 1969-10-17 1972-01-25 Richard W Powell Fluorescent lamp starting and control circuit
GB1293890A (en) * 1971-07-02 1972-10-25 Akad Wissenschaften Ddr Arrangement for converting electrical signals into optical signals
US4132925A (en) * 1976-06-15 1979-01-02 Forest Electric Company Direct current ballasting and starting circuitry for gaseous discharge lamps
US4158793A (en) * 1977-07-11 1979-06-19 Lewis Gary D Gas discharge lamp control circuit
JPS556775A (en) * 1978-06-30 1980-01-18 Matsushita Electric Works Ltd Device for lighting discharge lamp
US4209730A (en) * 1978-07-14 1980-06-24 Larry McGee Company Starting circuit for gaseous discharge lamps
JPS5559687A (en) * 1978-10-27 1980-05-06 Matsushita Electric Works Ltd Device for firing discharge lamp
US4219760A (en) * 1979-03-22 1980-08-26 General Electric Company SEF Lamp dimming
JPS55155498A (en) * 1979-05-24 1980-12-03 Matsushita Electric Works Ltd Discharge lamp firing device
FR2536563B1 (fr) * 1982-11-23 1985-07-26 Ssih Equipment Sa Element emetteur de lumiere a tube a decharge pour tableau d'affichage matriciel

Also Published As

Publication number Publication date
US4649322A (en) 1987-03-10
AU3828785A (en) 1985-08-08
EP0152026B1 (fr) 1988-06-29
FR2559334A1 (fr) 1985-08-09
KR900000669B1 (ko) 1990-02-02
CA1227528A (fr) 1987-09-29
JPH0447959B2 (fr) 1992-08-05
JPS60189196A (ja) 1985-09-26
FR2559334B1 (fr) 1988-02-26
KR850006296A (ko) 1985-10-02
EP0152026A1 (fr) 1985-08-21
DE3563584D1 (en) 1988-08-04
AU578263B2 (en) 1988-10-20

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