FR2437139A1 - Gradateur a onde rectangulaire ayant une frequence fixe et un cycle d'utilisation variable, pour lampe a decharge dans un gaz, d'intensite elevee - Google Patents

Gradateur a onde rectangulaire ayant une frequence fixe et un cycle d'utilisation variable, pour lampe a decharge dans un gaz, d'intensite elevee

Info

Publication number
FR2437139A1
FR2437139A1 FR7923873A FR7923873A FR2437139A1 FR 2437139 A1 FR2437139 A1 FR 2437139A1 FR 7923873 A FR7923873 A FR 7923873A FR 7923873 A FR7923873 A FR 7923873A FR 2437139 A1 FR2437139 A1 FR 2437139A1
Authority
FR
France
Prior art keywords
gas discharge
rectangular wave
high intensity
discharge lamp
fixed frequency
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.)
Withdrawn
Application number
FR7923873A
Other languages
English (en)
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.)
Esquire Inc
Original Assignee
Esquire 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 Esquire Inc filed Critical Esquire Inc
Publication of FR2437139A1 publication Critical patent/FR2437139A1/fr
Withdrawn legal-status Critical Current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
    • H05B41/3927—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by pulse width modulation
    • H05B41/3928—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by pulse width modulation for high-pressure lamps, e.g. high-intensity discharge lamps, high-pressure mercury or sodium lamps
    • 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
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/288—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
    • H05B41/2885—Static converters especially adapted therefor; Control thereof
    • H05B41/2887—Static converters especially adapted therefor; Control thereof characterised by a controllable bridge in the final stage
    • H05B41/2888—Static converters especially adapted therefor; Control thereof characterised by a controllable bridge in the final stage the bridge being commutated at low frequency, e.g. 1kHz
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • 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

Abstract

L'INVENTION CONCERNE UN GRADATEUR DE LAMPE. ELLE SE CARACTERISE EN CE QU'UNE PREMIERE PAIRE DE TRANSISTORS 16, 18 INVERSE LA POLARITE A BASSE FREQUENCE TANDIS QU'UN TRANSISTOR 28, 30 ASSOCIE A CHACUN DES PREMIERS TRANSISTORS EST COMMANDE A HAUTE FREQUENCE PAR UN PILOTE 120 FOURNISSANT UNE ONDE RECTANGULAIRE A FRONT REGULIER ET A QUEUE DEPENDANT DU REGLAGE VOULU. APPLICATION : LAMPES A DECHARGE DANS UN GAZ, D'INTENSITE ELEVEE.
FR7923873A 1978-09-22 1979-09-20 Gradateur a onde rectangulaire ayant une frequence fixe et un cycle d'utilisation variable, pour lampe a decharge dans un gaz, d'intensite elevee Withdrawn FR2437139A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/944,730 US4170747A (en) 1978-09-22 1978-09-22 Fixed frequency, variable duty cycle, square wave dimmer for high intensity gaseous discharge lamp

Publications (1)

Publication Number Publication Date
FR2437139A1 true FR2437139A1 (fr) 1980-04-18

Family

ID=25481964

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7923873A Withdrawn FR2437139A1 (fr) 1978-09-22 1979-09-20 Gradateur a onde rectangulaire ayant une frequence fixe et un cycle d'utilisation variable, pour lampe a decharge dans un gaz, d'intensite elevee

Country Status (10)

Country Link
US (1) US4170747A (fr)
AU (1) AU524575B2 (fr)
BE (1) BE878926A (fr)
CA (1) CA1087242A (fr)
DE (1) DE2936088A1 (fr)
ES (1) ES8102765A1 (fr)
FR (1) FR2437139A1 (fr)
GB (1) GB2030800B (fr)
IT (1) IT7949915A0 (fr)
MX (1) MX147020A (fr)

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US3816794A (en) * 1972-03-28 1974-06-11 Esquire Inc High intensity, gas discharge lamp dimmer system
US3969652A (en) * 1974-01-04 1976-07-13 General Electric Company Electronic ballast for gaseous discharge lamps
US3999100A (en) * 1975-05-19 1976-12-21 Morton B. Leskin Lamp power supply using a switching regulator and commutator

Also Published As

Publication number Publication date
ES484036A0 (es) 1980-09-01
GB2030800B (en) 1982-11-10
MX147020A (es) 1982-09-22
IT7949915A0 (it) 1979-08-01
ES8102765A1 (es) 1980-09-01
AU5081279A (en) 1980-03-27
BE878926A (fr) 1980-01-16
GB2030800A (en) 1980-04-10
AU524575B2 (en) 1982-09-23
DE2936088A1 (de) 1980-04-03
CA1087242A (fr) 1980-10-07
US4170747A (en) 1979-10-09

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