FR2454248A1 - Circuit d'entretien de l'arc d'une lampe a decharge - Google Patents

Circuit d'entretien de l'arc d'une lampe a decharge

Info

Publication number
FR2454248A1
FR2454248A1 FR8007920A FR8007920A FR2454248A1 FR 2454248 A1 FR2454248 A1 FR 2454248A1 FR 8007920 A FR8007920 A FR 8007920A FR 8007920 A FR8007920 A FR 8007920A FR 2454248 A1 FR2454248 A1 FR 2454248A1
Authority
FR
France
Prior art keywords
arc
value
circuit
current
given
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.)
Granted
Application number
FR8007920A
Other languages
English (en)
Other versions
FR2454248B1 (fr
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of FR2454248A1 publication Critical patent/FR2454248A1/fr
Application granted granted Critical
Publication of FR2454248B1 publication Critical patent/FR2454248B1/fr
Granted 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
    • 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
    • H05B41/2881—Load circuits; Control thereof
    • 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
    • H05B41/292—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2928—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the lamp against abnormal operating conditions
    • 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

Abstract

CIRCUIT MAINTENANT LE COURANT D'AIR A UNE VALEUR DE "SECURITE". IL COMPREND UN CIRCUIT D'AMORCAGE 36, 51 POUR ENGENDRER UNE TENSION PULSEE, DES MOYENS 81 POUR ACTIVER CE CIRCUIT CHAQUE FOIS QUE LE COURANT D'ARC DANS CETTE LAMPE A ARC TOMBE A UNE PREMIERE VALEUR DONNEE INFERIEURE A LA VALEUR DE FONCTIONNEMENT NORMALE ET SUPERIEURE A ZERO, DES MOYENS POUR APPLIQUER CETTE TENSION PULSEE A LA LAMPE A ARC POUR MAINTENIR L'ARC ET ACCROITRE LE COURANT D'ARC, ET DES MOYENS 28 POUR RENDRE INACTIF CE CIRCUIT LORSQUE LE COURANT D'ARC S'ACCROIT JUSQU'A UNE SECONDE VALEUR DONNEE, CETTE SECONDE VALEUR DONNEE DU COURANT D'ARC ETANT SUPERIEURE A LA PREMIERE VALEUR DONNEE. APPLICATION AUX LAMPES A ARC A HAUTE INTENSITE ET HAUTE PRESSION.
FR8007920A 1979-04-12 1980-04-09 Circuit d'entretien de l'arc d'une lampe a decharge Granted FR2454248A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2932079A 1979-04-12 1979-04-12

Publications (2)

Publication Number Publication Date
FR2454248A1 true FR2454248A1 (fr) 1980-11-07
FR2454248B1 FR2454248B1 (fr) 1984-10-19

Family

ID=21848430

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8007920A Granted FR2454248A1 (fr) 1979-04-12 1980-04-09 Circuit d'entretien de l'arc d'une lampe a decharge

Country Status (5)

Country Link
JP (1) JPS55139798A (fr)
DE (1) DE3013803A1 (fr)
FR (1) FR2454248A1 (fr)
GB (1) GB2049317B (fr)
NL (1) NL8002141A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI65524C (fi) * 1982-04-21 1984-05-10 Helvar Oy Foerfarande och anordning foer matning av hoegfrekvent vaexelstroem till en fluorescenslampa

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3644818A (en) * 1971-03-10 1972-02-22 Gte Sylvania Inc Electronic flashlamp power supply
GB1529824A (en) * 1975-10-24 1978-10-25 Gen Electric Ballast circuit for gaseous discharge lamps

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3644818A (en) * 1971-03-10 1972-02-22 Gte Sylvania Inc Electronic flashlamp power supply
GB1529824A (en) * 1975-10-24 1978-10-25 Gen Electric Ballast circuit for gaseous discharge lamps

Also Published As

Publication number Publication date
GB2049317A (en) 1980-12-17
DE3013803A1 (de) 1980-10-30
FR2454248B1 (fr) 1984-10-19
JPS55139798A (en) 1980-10-31
NL8002141A (nl) 1980-10-14
GB2049317B (en) 1983-04-27

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Legal Events

Date Code Title Description
ST Notification of lapse