EP0185357A1 - Méthode pour régler la puissance de lampes à décharge à vapeur - Google Patents

Méthode pour régler la puissance de lampes à décharge à vapeur Download PDF

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Publication number
EP0185357A1
EP0185357A1 EP19850116092 EP85116092A EP0185357A1 EP 0185357 A1 EP0185357 A1 EP 0185357A1 EP 19850116092 EP19850116092 EP 19850116092 EP 85116092 A EP85116092 A EP 85116092A EP 0185357 A1 EP0185357 A1 EP 0185357A1
Authority
EP
European Patent Office
Prior art keywords
voltage
lamp current
lamp
period
nominal
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
EP19850116092
Other languages
German (de)
English (en)
Other versions
EP0185357B1 (fr
Inventor
Volker Dipl.-Ing. Schaft
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0185357A1 publication Critical patent/EP0185357A1/fr
Application granted granted Critical
Publication of EP0185357B1 publication Critical patent/EP0185357B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • Y10S315/04—Dimming circuit for fluorescent 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

Definitions

  • the invention relates to a method for regulating the luminous flux of ignited vapor discharge lamps, in particular metal vapor lamps such as mercury vapor lamps.
  • Mercury vapor lamps not only serve as light sources for the lighting of industrial plants, roads and / or sports facilities (floodlights), but are also used as UV lamps in technological processes.
  • UV-reactive inks and varnishes are increasingly used. These paints and varnishes dry extremely quickly when irradiated with UV light and also allow manipulation of the surface quality (e.g. the impression of high-quality special material can be created by printing on poor quality paper and cardboard with UV varnishes).
  • the throughput of the printing material is usually not continuous, so that with the large power consumption of the dryer from approx. 10 kW to several 100 kW considerable amounts of energy can be saved if the radiation sources were switched off during the printing material breaks or at least throttled in the power consumption.
  • the reduction in output during the breaks in the substrate also extends the lifespan of the UV radiation sources.
  • Mercury vapor lamps like all vapor discharge lamps, have the disadvantage that they have to cool each time they are switched off until the entire metal vapor condenses and that an ignition process takes place during switching on, during which the condensed metal evaporates, which can take several minutes. This type of power control is unsuitable because of the considerable inertia. When such radiation sources are operated far below the nominal load range, there is a risk that the arc discharge generating the radiation will collapse due to excessive cooling of the radiation source, which is equivalent in effect to the switching off of the radiation source.
  • the object of the invention is to provide a control method for the operation of steam discharge lamps and thus de luminous flux emitted by these lamps, with which the operation of the radiation source both below the nominal load range and a instantaneous switching from the partial load range to full load is ensured at all times.
  • the lamp current is preferably reduced from the nominal intensity to a value not below 15% of the nominal current, the voltage drop is measured during and after the retraction of the lamp current, and when the constant voltage following the voltage drop period is reached, the lamp current increases the nominal strength is increased while determining the voltage rise and then the lamp current is reduced again when the nominal voltage is reached.
  • the lamp current when the period of constant voltage following the voltage drop occurs, the lamp current is not increased to the nominal intensity, but only until the voltage has risen to a predetermined value, the magnitude of which between the nominal voltage and the Voltage value of the period of constant voltage lies.
  • the lamp current is then controlled so that the predetermined voltage value is maintained during the partial load operation of the lamp.
  • a vapor discharge lamp e.g. B. a mercury vapor lamp
  • current IN and voltage U N are essentially constant quantities in the nominal range. If, in order to reduce the luminous flux output of the lamp, as shown in FIG. 1, the current I to be supplied to the lamp is reduced at time A, which can take place suddenly, the voltage U applied to the lamp poles also gradually decreases. During this process, the lamp cools down so that the vapors of the metallic charge carrier (e.g. mercury) begin to condense when the dew point is reached. With insertion of the metal Vapor condensation changes the voltage U as long as there are no more metal vapors in the lamp chamber and the arc discharge of the lamp is maintained.
  • the metallic charge carrier e.g. mercury

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
EP85116092A 1984-12-18 1985-12-17 Méthode pour régler la puissance de lampes à décharge à vapeur Expired - Lifetime EP0185357B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3446083 1984-12-18
DE3446083 1984-12-18
DE3505182A DE3505182C2 (de) 1984-12-18 1985-02-15 Verfahren zum Regeln des Lichtstroms von Hochdruck-Dampfentladungslampen
DE3505182 1985-02-15

Publications (2)

Publication Number Publication Date
EP0185357A1 true EP0185357A1 (fr) 1986-06-25
EP0185357B1 EP0185357B1 (fr) 1990-09-05

Family

ID=25827474

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85116092A Expired - Lifetime EP0185357B1 (fr) 1984-12-18 1985-12-17 Méthode pour régler la puissance de lampes à décharge à vapeur

Country Status (3)

Country Link
US (1) US4733136A (fr)
EP (1) EP0185357B1 (fr)
DE (1) DE3505182C2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2319406A (en) * 1996-11-12 1998-05-20 Uvp Inc Dimming a medium pressure arc lamp; UV lamp standby mode

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2361414A1 (de) * 1973-12-10 1975-06-19 Dieter Geyer Zuendgeraet fuer ultraviolettstrahllampen, beispielsweise quecksilberdampflampen oder metallhalogenidlampen
US4162429A (en) * 1977-03-11 1979-07-24 Westinghouse Electric Corp. Ballast circuit for accurately regulating HID lamp wattage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991344A (en) * 1975-03-18 1976-11-09 Westinghouse Electric Corporation Solid-state dimmer for dual high pressure discharge lamps
US3989976A (en) * 1975-10-07 1976-11-02 Westinghouse Electric Corporation Solid-state hid lamp dimmer
US4146819A (en) * 1977-08-29 1979-03-27 Union Carbide Corporation Method for varying voltage in a high intensity discharge mercury lamp
US4507569A (en) * 1983-12-30 1985-03-26 Conservolite, Inc. Electrical control system and driver

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2361414A1 (de) * 1973-12-10 1975-06-19 Dieter Geyer Zuendgeraet fuer ultraviolettstrahllampen, beispielsweise quecksilberdampflampen oder metallhalogenidlampen
US4162429A (en) * 1977-03-11 1979-07-24 Westinghouse Electric Corp. Ballast circuit for accurately regulating HID lamp wattage

Also Published As

Publication number Publication date
DE3505182A1 (de) 1986-06-26
US4733136A (en) 1988-03-22
EP0185357B1 (fr) 1990-09-05
DE3505182C2 (de) 1986-10-16

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