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DE59510867D1 - Method and device for operating a high-pressure discharge lamp - Google Patents

Method and device for operating a high-pressure discharge lamp

Info

Publication number
DE59510867D1
DE59510867D1 DE59510867T DE59510867T DE59510867D1 DE 59510867 D1 DE59510867 D1 DE 59510867D1 DE 59510867 T DE59510867 T DE 59510867T DE 59510867 T DE59510867 T DE 59510867T DE 59510867 D1 DE59510867 D1 DE 59510867D1
Authority
DE
Germany
Prior art keywords
frequency
invertor
operating
discharge lamp
pressure discharge
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.)
Expired - Fee Related
Application number
DE59510867T
Other languages
German (de)
Inventor
Walter Peters
Dipl-Ing Scharpenberg
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.)
PRAEZISA IND ELEKTRONIK
Original Assignee
PRAEZISA IND ELEKTRONIK
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 PRAEZISA IND ELEKTRONIK filed Critical PRAEZISA IND ELEKTRONIK
Application granted granted Critical
Publication of DE59510867D1 publication Critical patent/DE59510867D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H05B41/26—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

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

The method involves using an invertor (3) supplied via a rectifier (4) from the mains (10) and working at a frequency in the 10 to 100 kHz range which is controlled by a voltage-frequency convertor (9a) with regulation and modulation amplifiers (9b,9c). Inputs to the regulation amplifier (9b) are taken from a current-measuring resistance (2) and a power-setting control (5). The output of the invertor is modulated periodically about its nominal level with a modulation frequency lying between 50 Hz and the working frequency of the invertor. A current-limiting choke (8) is interposed between the measuring resistance and the lamp.
DE59510867T 1995-05-23 1995-05-23 Method and device for operating a high-pressure discharge lamp Expired - Fee Related DE59510867D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95107865A EP0744883B1 (en) 1995-05-23 1995-05-23 Device and process for operating a high pressure discharge lamp

Publications (1)

Publication Number Publication Date
DE59510867D1 true DE59510867D1 (en) 2004-04-08

Family

ID=8219281

Family Applications (1)

Application Number Title Priority Date Filing Date
DE59510867T Expired - Fee Related DE59510867D1 (en) 1995-05-23 1995-05-23 Method and device for operating a high-pressure discharge lamp

Country Status (3)

Country Link
EP (1) EP0744883B1 (en)
AT (1) ATE261235T1 (en)
DE (1) DE59510867D1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5684367A (en) * 1996-01-16 1997-11-04 Osram Sylvania Inc. Color control and arc stabilization for high-intensity, discharge lamps
TW348363B (en) * 1996-10-21 1998-12-21 Matsushita Electric Ind Co Ltd Operating method and operating apparatus for a high pressure discharge lamp
WO1998035538A1 (en) * 1997-02-08 1998-08-13 Robert Bosch Gmbh Method for determining the resonance frequency of an electric resonant circuit
ATE318068T1 (en) * 1997-07-24 2006-03-15 Verdeyen N V F INVERTER FOR SUPPLYING A DISCHARGE LAMP WITH A SURPRISELY VARIABLE FREQUENCY
US6124683A (en) * 1999-04-14 2000-09-26 Osram Sylvania Inc. System for and method of operating a mercury free discharge lamp
US6229269B1 (en) 1999-05-21 2001-05-08 Osram Sylvania Inc. System for and method of operating a discharge lamp
FR2799062B1 (en) * 1999-09-27 2001-12-21 Valeo Vision IMPROVEMENTS IN ORDERING THE SUPPLY OF DISCHARGE LAMPS, ESPECIALLY A MOTOR VEHICLE PROJECTOR
US6498441B1 (en) * 2001-08-10 2002-12-24 Koninklijke Philips Electronics N.V. Method for coloring mixing of hid lamps operated at VHF frequencies using duty cycle modulation
US6870324B2 (en) * 2001-08-15 2005-03-22 Koninklijke Philips Electronics N.V. Method for color mixing with arc stability and straightening of HID lamps operated at high frequencies using duty cycle modulation
CN1947218A (en) * 2004-04-09 2007-04-11 皇家飞利浦电子股份有限公司 High-pressure sodium lamp
DE102005059762A1 (en) * 2005-12-14 2007-06-21 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Circuit arrangement and method for operating high-pressure gas discharge lamps

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU632094B2 (en) * 1989-03-08 1992-12-17 General Electric Company Acoustic resonance operation for xenon-metal halide lamps
EP0439861A1 (en) * 1990-01-29 1991-08-07 Koninklijke Philips Electronics N.V. Circuit arrangement
DE4234358A1 (en) * 1992-10-12 1993-02-25 Juerg Nigg Driving gas discharge or fluorescent lamp - using frequency modulated supply from DC or AC source with centre frequency between 15 and 100 kHz
US5382881A (en) * 1992-12-28 1995-01-17 North American Philips Corporation Ballast stabilization circuitry for eliminating moding or oscillation of the current envelope in gas discharge lamps and method of operating

Also Published As

Publication number Publication date
EP0744883A1 (en) 1996-11-27
ATE261235T1 (en) 2004-03-15
EP0744883B1 (en) 2004-03-03

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee