BE878926A - Gradateur a onde rectangulaire ayant une frequence fixe et un cycle d'utilisation variable, pour lampe a decharge gazeuse - Google Patents

Gradateur a onde rectangulaire ayant une frequence fixe et un cycle d'utilisation variable, pour lampe a decharge gazeuse

Info

Publication number
BE878926A
BE878926A BE0/197258A BE197258A BE878926A BE 878926 A BE878926 A BE 878926A BE 0/197258 A BE0/197258 A BE 0/197258A BE 197258 A BE197258 A BE 197258A BE 878926 A BE878926 A BE 878926A
Authority
BE
Belgium
Prior art keywords
discharge lamp
gas discharge
rectangular wave
fixed frequency
use cycle
Prior art date
Application number
BE0/197258A
Other languages
English (en)
Inventor
K Holmes
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 BE878926A publication Critical patent/BE878926A/fr

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
BE0/197258A 1978-09-22 1979-09-21 Gradateur a onde rectangulaire ayant une frequence fixe et un cycle d'utilisation variable, pour lampe a decharge gazeuse BE878926A (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
BE878926A true BE878926A (fr) 1980-01-16

Family

ID=25481964

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/197258A BE878926A (fr) 1978-09-22 1979-09-21 Gradateur a onde rectangulaire ayant une frequence fixe et un cycle d'utilisation variable, pour lampe a decharge gazeuse

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) ES484036A0 (fr)
FR (1) FR2437139A1 (fr)
GB (1) GB2030800B (fr)
IT (1) IT7949915A0 (fr)
MX (1) MX147020A (fr)

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DE3713312A1 (de) * 1987-04-18 1989-02-02 Manfred Prof Dipl Ing Fender Regelbare wechselstromquelle fuer gasentladungsstrecken zur licht- und ozonerzeugung
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DE3887441T2 (de) * 1987-10-27 1994-05-11 Matsushita Electric Works Ltd Entladungslampenbetriebsschaltung.
NL8800015A (nl) * 1988-01-06 1989-08-01 Philips Nv Elektrische inrichting voor het ontsteken en voeden van een gasontladingslamp.
EP0395159B1 (fr) * 1989-04-28 1995-03-22 Koninklijke Philips Electronics N.V. Convertisseur courant continu-courant alternatif pour l'alimentation de deux lampes à décharge dans la vapeur et / ou le gaz
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CN1457625A (zh) * 2001-02-21 2003-11-19 皇家菲利浦电子有限公司 镇流器电路装置
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CN100566499C (zh) * 2001-11-30 2009-12-02 皇家飞利浦电子股份有限公司 用于驱动气体放电灯的方法和装置
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Also Published As

Publication number Publication date
GB2030800A (en) 1980-04-10
GB2030800B (en) 1982-11-10
FR2437139A1 (fr) 1980-04-18
IT7949915A0 (it) 1979-08-01
US4170747A (en) 1979-10-09
CA1087242A (fr) 1980-10-07
DE2936088A1 (de) 1980-04-03
ES8102765A1 (es) 1980-09-01
ES484036A0 (es) 1980-09-01
AU524575B2 (en) 1982-09-23
AU5081279A (en) 1980-03-27
MX147020A (es) 1982-09-22

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: ESQUIRE INC.

Effective date: 19840921