FR2397768A1 - Dispositif et procede pour l'alimentation d'une lampe a decharge de gaz et leur application, notamment a des images a mise en service momentanee et repetee dans des machines de reproduction des documents - Google Patents

Dispositif et procede pour l'alimentation d'une lampe a decharge de gaz et leur application, notamment a des images a mise en service momentanee et repetee dans des machines de reproduction des documents

Info

Publication number
FR2397768A1
FR2397768A1 FR7820319A FR7820319A FR2397768A1 FR 2397768 A1 FR2397768 A1 FR 2397768A1 FR 7820319 A FR7820319 A FR 7820319A FR 7820319 A FR7820319 A FR 7820319A FR 2397768 A1 FR2397768 A1 FR 2397768A1
Authority
FR
France
Prior art keywords
current
momentary
gas discharge
lamp
repeated
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
FR7820319A
Other languages
English (en)
Inventor
Gary Dean Lewis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Energy Conversion Devices Inc
Original Assignee
Energy Conversion Devices Inc
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 Energy Conversion Devices Inc filed Critical Energy Conversion Devices Inc
Publication of FR2397768A1 publication Critical patent/FR2397768A1/fr
Pending legal-status Critical Current

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
    • 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
    • H05B41/3922—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations and measurement of the incident light
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S315/00—Electric lamp and discharge devices: systems
    • Y10S315/05—Starting and operating circuit for fluorescent lamp
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S315/00—Electric lamp and discharge devices: systems
    • Y10S315/07—Starting and control circuits for gas discharge lamp using transistors

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)

Abstract

Circuit d'alimentation de lampes à décharge de gaz. Le circuit comprend des moyens pour alimenter en permanence une lampe avec un courant faible ne produisant pas de lumière utilisable. Ce courant peut être continu ou alternatif, délivré par un circuit comprenant plusieurs sources de tension continue, plusieurs redresseurs, impédances, résistances et commutateurs. Ce courant présente une fréquence élevée, par exemple de 20 à 30 kHz. Lorsqu'on utilise du courant continu pulsé et que les commutateurs sont rendus conducteurs, on polarise en sens inverse les redresseurs qui débranchent une source de tension et la rebranche à une borne différente de la lampe provoquant l'augmentation du courant dans la lampe et donc un degré d'ionisation élevé produisant une lumière utilisable. Lampes à allumage momentané et répété par exemple de machines de reproduction de documents.
FR7820319A 1977-07-11 1978-07-07 Dispositif et procede pour l'alimentation d'une lampe a decharge de gaz et leur application, notamment a des images a mise en service momentanee et repetee dans des machines de reproduction des documents Pending FR2397768A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/814,383 US4158793A (en) 1977-07-11 1977-07-11 Gas discharge lamp control circuit

Publications (1)

Publication Number Publication Date
FR2397768A1 true FR2397768A1 (fr) 1979-02-09

Family

ID=25214904

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7820319A Pending FR2397768A1 (fr) 1977-07-11 1978-07-07 Dispositif et procede pour l'alimentation d'une lampe a decharge de gaz et leur application, notamment a des images a mise en service momentanee et repetee dans des machines de reproduction des documents

Country Status (6)

Country Link
US (1) US4158793A (fr)
JP (1) JPS5439972A (fr)
DE (1) DE2829986A1 (fr)
FR (1) FR2397768A1 (fr)
GB (1) GB2001811A (fr)
IT (1) IT1097518B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2559334A1 (fr) * 1984-02-03 1985-08-09 Ssih Equipment Sa Dispositif d'alimentation pour commander l'intensite lumineuse d'au moins une lampe a decharge et utilisation dudit dispositif

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE441563B (sv) * 1980-04-09 1985-10-14 Selfrid Gunnar Ohlund Styranordning for en omvandlare-stromventil for drift av ett gasurladdningsror fran en likstromskella
USRE32341E (en) * 1981-02-10 1987-01-27 Disco light assembly
US4399391A (en) * 1981-06-10 1983-08-16 General Electric Company Circuit for starting and operating fluorescent lamps
GB2117192B (en) * 1982-02-26 1986-01-02 Transtar Limited Lamp control circuit
GB2120869A (en) * 1982-05-04 1983-12-07 Gen Electric Controlling the output level of an electrical power supply
US5047696A (en) * 1982-12-16 1991-09-10 Nilssen Ole K Power-limited ceiling lighting system
US5479326A (en) * 1983-01-18 1995-12-26 Nilssen; Ole K. Ceiling system with readily movable lighting panels
JPS60163397A (ja) * 1984-02-03 1985-08-26 シャープ株式会社 螢光灯点灯装置
EP0176563A4 (fr) * 1984-03-28 1986-05-12 Electronic Transformer Corp Unite de charge et de commande pour une lampe a decharge electrique.
JPS6212097A (ja) * 1985-07-10 1987-01-21 株式会社日立製作所 蛍光ランプ点灯装置
US4742276A (en) * 1986-07-25 1988-05-03 The Perkin-Elmer Corporation Regulated deuterium arc supply system
US4870327A (en) * 1987-07-27 1989-09-26 Avtech Corporation High frequency, electronic fluorescent lamp ballast
US5023518A (en) * 1988-12-12 1991-06-11 Joseph A. Urda Ballast circuit for gaseous discharge lamp
US5041767A (en) * 1990-03-30 1991-08-20 Bertonee Inc. Digital controller for gas discharge tube
US5021714A (en) * 1990-05-10 1991-06-04 Valmont Industries, Inc. Circuit for starting and operating fluorescent lamps
US5173643A (en) * 1990-06-25 1992-12-22 Lutron Electronics Co., Inc. Circuit for dimming compact fluorescent lamps
DE4039498B4 (de) * 1990-07-13 2006-06-29 Lutron Electronics Co., Inc. Schaltkreis und Verfahren zum Dimmen von Gasentladungslampen
US5068577A (en) * 1990-11-19 1991-11-26 Integrated Systems Engineering, Inc. Constant current drive system for fluorescent tubes
US5386181A (en) * 1992-01-24 1995-01-31 Neon Dynamics Corporation Swept frequency switching excitation supply for gas discharge tubes
US5530321A (en) * 1995-02-21 1996-06-25 Sears; Lawrence M. Power supply for a gas discharge lamp

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1937032A1 (de) * 1968-07-23 1970-02-26 Matsushita Electric Ind Co Ltd Vorrichtung zum Aufleuchtenlassen einer Leuchtroehre
US3753040A (en) * 1971-12-10 1973-08-14 Ims Corp Fluorescent lamp strobing circuit
GB1363085A (en) * 1972-10-13 1974-08-14 Holley J E F Fluorescent tube operating circuit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2668259A (en) * 1950-02-16 1954-02-02 Raytheon Mfg Co Electrical circuit
US2697801A (en) * 1953-09-30 1954-12-21 William S H Hamilton Instant starting circuit for fluorescent lamps
US2810862A (en) * 1955-12-14 1957-10-22 Faximile Inc Fluorescent lamp control apparatus
US2961579A (en) * 1958-06-16 1960-11-22 Day Ray Products Inc Dimming circuits for fluorescent lamps
US3638070A (en) * 1969-10-17 1972-01-25 Richard W Powell Fluorescent lamp starting and control circuit
US3720861A (en) * 1970-12-21 1973-03-13 Teletype Corp Fluorescent lamp igniting circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1937032A1 (de) * 1968-07-23 1970-02-26 Matsushita Electric Ind Co Ltd Vorrichtung zum Aufleuchtenlassen einer Leuchtroehre
US3753040A (en) * 1971-12-10 1973-08-14 Ims Corp Fluorescent lamp strobing circuit
GB1363085A (en) * 1972-10-13 1974-08-14 Holley J E F Fluorescent tube operating circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2559334A1 (fr) * 1984-02-03 1985-08-09 Ssih Equipment Sa Dispositif d'alimentation pour commander l'intensite lumineuse d'au moins une lampe a decharge et utilisation dudit dispositif
EP0152026A1 (fr) * 1984-02-03 1985-08-21 Omega Electronics S.A. Dispositif d'alimentation pour commander l'intensité lumineuse d'au moins une lampe à décharge et utilisation dudit dispositif

Also Published As

Publication number Publication date
DE2829986A1 (de) 1979-02-01
IT7825500A0 (it) 1978-07-10
IT1097518B (it) 1985-08-31
GB2001811A (en) 1979-02-07
JPS5439972A (en) 1979-03-28
US4158793A (en) 1979-06-19

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