EP0185357B1 - 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
EP0185357B1
EP0185357B1 EP85116092A EP85116092A EP0185357B1 EP 0185357 B1 EP0185357 B1 EP 0185357B1 EP 85116092 A EP85116092 A EP 85116092A EP 85116092 A EP85116092 A EP 85116092A EP 0185357 B1 EP0185357 B1 EP 0185357B1
Authority
EP
European Patent Office
Prior art keywords
voltage
lamp current
lamp
reduction
current
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 - Lifetime
Application number
EP85116092A
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German (de)
English (en)
Other versions
EP0185357A1 (fr
Inventor
Volker Dipl.-Ing. Schaft
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Individual
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Individual
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Publication date
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Publication of EP0185357A1 publication Critical patent/EP0185357A1/fr
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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 high-pressure vapor discharge lamps, in particular high-pressure metal-vapor lamps such as mercury-vapor lamps.
  • Mercury vapor lamps not only serve as light sources for the illumination of industrial plants, streets and / or sports facilities (floodlights), but are also used as UV lamps in technological processes.
  • UV-reactive inks and varnishes are increasingly used in the printing industry. These paints and varnishes dry extremely quickly when irradiated with UV light and also allow Linaus to manipulate the surface quality (e.g. printing low-quality paper and cardboard with UV varnishes can create the impression of high-quality special material).
  • Mercury vapor lamps like all vapor discharge lamps, have the disadvantage that each time they are switched off, they have to cool until all the metal vapor has condensed, and that when the lamp is switched on, an ignition process takes place 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 which generates the radiation will collapse due to excessive cooling of the radiation source, the effects of which are tantamount to switching off the radiation source.
  • the object of the invention is to provide a control method for the operation of high-pressure vapor discharge lamps and thus the luminous flux emitted by these lamps, with which the lamp current can be reduced quickly, a safe operation of the lamp is made possible both below the nominal load range and without delay Switching the same from the partial load range to full load is ensured at all times.
  • This object is achieved according to the invention by changing the lamp current and monitoring the lamp voltage with the method steps of claim 1, by reducing the lamp current when the nominal voltage is present, preferably to a value not below 15% of the nominal current, during or after the lamp current is withdrawn from it Resulting decrease in voltage, subsequent constant voltage curve is registered, the lamp current is increased to the nominal strength when the constant voltage curve begins and then the lamp current is reduced again when the nominal voltage is reached.
  • a high pressure vapor discharge lamp for example a mercury vapor lamp
  • the maximum current of which is limited by a conventional ballast in the nominal range current I N and voltage U N are essentially constant quantities.
  • the current I to be supplied to the lamp is reduced at time A, which can occur suddenly, the voltage U applied to the lamp poles also gradually decreases.
  • the lamp cools down so that the vapors of the metallic charge carrier (eg mercury) begin to condense when the dew point is reached. With the onset of metal vapor condensation, the voltage U does not change as long as there are no more metal vapors in the lamp space and the arc discharge of the lamp is maintained.
  • the metallic charge carrier eg mercury

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Claims (4)

1. Procédé pour le réglage du flux lumineux de lampes à décharge à vapeur à haute pression, en particulier de lampes à vapeur métallique à haute pression, par modification du courant de la lampe, selon lequel la tension est surveillée, et qui comprend les opérations suivantes:
a) réduction du courant (I) de la lampe alors que la tension nominale (UN) est appliquée,
b) enregistrement, pendant ou après la réduction du courant (I) de la lampe, d'un tracé de tension constante (UK) succédant à la baisse de tension résultant de ladite réduction,
c) élévation du courant (I) de la lampe à la valeur nominale (IN) à l'établissement du tracé de tension constante (UK),
d) réduction à nouveau du courant (i) de la lampe à l'atteinte de la tension nominale (UN),
2. Procédé pour le réglage du flux lumineux de lampes à décharge à vapeur à haute pression, en particulier de lampes à vapeur métallique à haute pression, par modification du courant de la lampe, selon lequel la tension est surveillée, et qui comprend les opérations suivantes:
a) réduction du courant (I) de la lampe,
b) enregistrement, pendant ou après la réduction du courant (I) de la lampe, d'un tracé de tension constante (UK) succédant à la baisse de tension résultant de ladite réduction,
c) élévation du courant (I) de la lampe à l'établissement du tracé de tension constante (UK),
d) réduction du courant (I) de la lampe à l'atteinte d'une tension prédéterminée (U,) dont la grandeur est comprise entre la tension nominale (UN) et la valeur de la tension (UK) constante, et élévation du courant de la lampe dès que cette tension prédéterminée (Ui) est franchie par décroissance.
3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le courant (I) de la lampe est réduit à une valeur non inférieure à 15% du courant nominal (IN).
4. Procédé selon l'une des revendications précédentes, caractérisé en ce que la réduction et/ou l'élévation du courant (I) de la lampe s'effectuent de manière subite.
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 EP0185357A1 (fr) 1986-06-25
EP0185357B1 true 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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3989976A (en) * 1975-10-07 1976-11-02 Westinghouse Electric Corporation Solid-state hid lamp dimmer

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
US4162429A (en) * 1977-03-11 1979-07-24 Westinghouse Electric Corp. Ballast circuit for accurately regulating HID lamp wattage
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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3989976A (en) * 1975-10-07 1976-11-02 Westinghouse Electric Corporation Solid-state hid lamp dimmer

Also Published As

Publication number Publication date
EP0185357A1 (fr) 1986-06-25
DE3505182C2 (de) 1986-10-16
DE3505182A1 (de) 1986-06-26
US4733136A (en) 1988-03-22

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