WO2007039010A1 - Chauffage de filament variable - Google Patents

Chauffage de filament variable Download PDF

Info

Publication number
WO2007039010A1
WO2007039010A1 PCT/EP2006/007800 EP2006007800W WO2007039010A1 WO 2007039010 A1 WO2007039010 A1 WO 2007039010A1 EP 2006007800 W EP2006007800 W EP 2006007800W WO 2007039010 A1 WO2007039010 A1 WO 2007039010A1
Authority
WO
WIPO (PCT)
Prior art keywords
heating
gas discharge
light level
dimming
operating device
Prior art date
Application number
PCT/EP2006/007800
Other languages
German (de)
English (en)
Inventor
Arthur Geller
Markus Mayrhofer
Original Assignee
Tridonicatco Gmbh & Co. Kg
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 Tridonicatco Gmbh & Co. Kg filed Critical Tridonicatco Gmbh & Co. Kg
Priority to AT06776652T priority Critical patent/ATE512568T1/de
Priority to EP06776652A priority patent/EP1932398B1/fr
Publication of WO2007039010A1 publication Critical patent/WO2007039010A1/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
    • H05B41/26—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
    • H05B41/295—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 with preheating electrodes, e.g. for fluorescent lamps

Definitions

  • the present invention relates to the control and / or regulation of the heating operation of a
  • Heating coil of a gas discharge lamp as is typically carried out by operating devices for gas discharge lamps.
  • heating parameters in particular heating current
  • These heating parameters are usually determined as a function of the lamp power of the gas discharge lamp, so that different heating parameters result for different light levels.
  • such regulations are set for static operation, in which therefore the lamp output does not change at all or only over a very long period of time.
  • the invention addresses this problem and provides a solution as to how unnecessary shortening of the service life of the heating coil during static and also during non-static dimming operation of the gas discharge lamp can be avoided.
  • a method for operating a dimmable operating device for a gas discharge lamp is proposed, wherein the gas discharge lamp has at least one heating coil.
  • a light level can be specified in the form of a dimming command. If an applied dimming command, for example, instructs a higher output of the gas discharge lamp compared to the current output of the connected gas discharge lamp, the operating device sets an increased heating current at the heating coil.
  • This increased heating current corresponds to the sum of the value, which is given for example by the lamp manufacturer for the instructed higher power of the gas discharge lamp in static operation and a correction value, which takes into account the dynamic load of the coil. Only when the increased heating current to the heating coil has then also set, is the temporal delayed the dimming command corresponding higher power of the gas discharge lamp set by the operating device. After the system has settled, it is possible to set the static heating current to the value specified by the lamp manufacturer. For energy-optimized operation of the lamp, for example, at very low light levels, a further adjustment (reduction) of the heating current is also possible at a longer stationary light level.
  • the invention further provides that the heating current is set not only dependent on the static states of the dimming operation, but also on the dynamics, ie the temporal changes of the dimming operation.
  • an operating device can set the heating current I for the heating coil as a function of the time change of the dimming value in a defined preceding time interval dt.
  • the higher the dimming dynamics the higher the heating current can be set.
  • the invention also relates to a control module for a control device for gas discharge lamps, which is designed to carry out a method of the type mentioned.
  • the invention also relates to a dimmable control device for gas discharge lamps, which has such a control module.
  • the invention also relates to a computer software program product implementing such a method when running on a computing device.
  • FIG. 1 shows schematically a system according to the present invention and for carrying out the method according to the invention
  • Fig. 2 shows timing charts for explaining the present invention.
  • an operating device which may be, for example, an electronic ballast (ECG).
  • ECG electronic ballast
  • This operating device controls the operation of a gas discharge lamp 8, which has at least one heating coil 15.
  • the operating device can be provided with an interface 2, by means of which the operating device in particular digital setpoint values for light levels can be supplied via a bus line 1, for example.
  • the operating device is basically designed to control the operation of the lamp 8 such that the actual light output of the lamp 8 substantially corresponds to an external example.
  • a dimming predetermined light level 1 wherein the supply of light level via a bus only one way Setpoint specification represents.
  • an electronic ballast control unit 3 outputs a desired light value 4 to a unit 5, which performs a lamp power / lamp current calculation and in turn drives a lamp control unit 6.
  • the unit 5 gives the lamp control unit 6 a desired value by means of which the power of the lamp 8 can be controlled.
  • this specification may be the operating frequency of a half-bridge for generating the high-frequency operating voltage for the lamp 8.
  • any other control values, such as operating voltage or operating current of the lamp 8 are conceivable.
  • Depending on the supplied control value from the unit 5 controls the lamp control 6 by means of a power amplifier 7 according to the operation of the lamp 8 at.
  • a parameter 10 is returned to the lamp control 6, wherein the parameter 10 is an indication of the current lamp power and, for example, the lamp current and / or the lamp voltage can be. In this case, so there is a lamp power control.
  • the electronic ballast controller 3 further outputs a coil heating target value 11 depending on the supplied target light level 1 to a coil heating calculation unit 12, for example, for adaptation and pilot control. Furthermore, the electronic ballast control 3 outputs an adaptation target value 9 to this unit 12, by means of which the type of adaptation and feedforward control can be influenced by the unit 12.
  • a coil heating control and / or regulating unit 13 is actuated, which outputs a control value for the coil heating 15, which is amplified by means of a power amplifier 14.
  • a parameter 16 representing the heating power can be returned from the coil 15 to the control and / or regulating unit 13.
  • This parameter of the heating power can be, for example, the heating current and / or the heating voltage.
  • the parameter 10 representing the lamp power is also fed back to the coil heating calculation, adaptation and pilot control unit 12.
  • the illustrated operating device is designed as a digitally controlled dimmable device
  • the information about the desired future light level can be made available in a comparatively simple manner for a number of independent control processes shortly before execution of the default. These control processes can be carried out, for example, temporally shortly before the activation of the lamp to the currently existing default value.
  • the filament heating i.
  • the setting of the filament heating current depends not only on the static parameters of the lamp power control, but also on the dynamics of the lamp power control, i. the dimming dynamics are executed.
  • a heating power parameter eg, the
  • WendelMapstrom or the heating voltage adapted to a value for optimal life in stationary operation, in particular lowered.
  • the heating current can be adapted, in particular raised, to that which is intended for steady-state operation and deviates from that set value for the helical heating.
  • the heating power can be temporarily increased above the nominal value ("overheating"), while at a Dimming jump from 100% to 1% light level, the heating power can be temporarily reduced below the nominal value ("underheating").
  • a continuous heating value (static or steady-state calorific value) deviating from the temporary calorific value can be set.
  • the coil heating can be adjusted to an adapted coil heating value within the limits specified by the lamp manufacturer under dynamic loading of the system, in particular over a longer period of time become.
  • the filament heating can then be operated for a short time outside of the values specified by the lamp manufacturer for faster thermal oscillation of the filament.
  • the change in the lamp current compared to the change in the filament heating can be delayed or accelerated slightly, especially in non-time critical applications.
  • the effect of the thermal time constant of the coil can be better compensated and the negative sputtering effect can be avoided with otherwise set to optimum value for the lifetime coil heating.
  • the minimized stationary auxiliary heating of the coil heating also leads to a better efficiency of the overall system luminaire. Especially at low dimming levels, ie at low lamp power and the necessary highest filament heating (to reduce cooling of the coil), this saving has a significant effect on the overall efficiency of the lamp.
  • Fig. 2 is shown by way of example (see the period of 5-15 seconds) in static dimming the heating level can be lowered.
  • the light level changes see the range of about 45 to 55 seconds
  • the heating current of the filament heater can be raised beyond the value for static operation (100% value).
  • the heating level is to be increased at lower light levels.
  • An advantageous application of the invention is, for example.
  • emergency mode being switched from a normal light level to an emergency light level.
  • the heater can be temporarily (temporarily) operated with a first lamp-optimized calorific value, before a low steady calorific value, which protects the resources (battery, etc.), is set.
  • the stationary, lower calorific value is not set in the long-term in test mode, but only in real emergency lighting mode.
  • the stationary calorific value can otherwise be "zero" in emergency lighting mode, ie it is switched off.

Landscapes

  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

L'invention concerne un procédé pour faire fonctionner un appareil variateur pour une lampe à décharge dotée d'au moins un filament de chauffage, ce procédé comprenant les opérations suivantes : donner un ordre de variation à l'appareil variateur qui présente une puissance supérieure de la lampe à décharge comparativement à la puissance réelle, régler un courant de chauffage supérieur sur le filament de chauffage pour la puissance supérieure de la lampe à décharge indiquée par la valeur de variation et régler la puissance supérieure de la lampe à décharge correspondant à l'ordre de variation au moyen de l'appareil variateur, le courant de chauffage ayant augmenté sur le filament de chauffage.
PCT/EP2006/007800 2005-10-06 2006-08-07 Chauffage de filament variable WO2007039010A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT06776652T ATE512568T1 (de) 2005-10-06 2006-08-07 Dynamische wendelheizung
EP06776652A EP1932398B1 (fr) 2005-10-06 2006-08-07 Chauffage de filament variable

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005047985.5 2005-10-06
DE102005047985A DE102005047985A1 (de) 2005-10-06 2005-10-06 Dynamische Wendelheizung

Publications (1)

Publication Number Publication Date
WO2007039010A1 true WO2007039010A1 (fr) 2007-04-12

Family

ID=37649514

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/007800 WO2007039010A1 (fr) 2005-10-06 2006-08-07 Chauffage de filament variable

Country Status (4)

Country Link
EP (1) EP1932398B1 (fr)
AT (1) ATE512568T1 (fr)
DE (1) DE102005047985A1 (fr)
WO (1) WO2007039010A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007047141A1 (de) 2007-10-02 2009-04-09 Tridonicatco Gmbh & Co. Kg Betriebsgerät zum Steuern des Einbrennvorganges einer Lampe

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0589081A1 (fr) * 1992-09-24 1994-03-30 Knobel Ag Lichttechnische Komponenten Circuit pour alimenter une lampe fluorescente avec mesure du courant passant par la lampe
EP0707438A2 (fr) * 1994-10-13 1996-04-17 Tridonic Bauelemente GmbH Ballast pour au moins une lampe à décharge
DE69919516T2 (de) * 1998-02-18 2005-02-03 Pls Systems Ab Verfahren zum betrieb von niederdruckentladungslampen
US20050067973A1 (en) * 2001-11-23 2005-03-31 Marcel Beij Device for heating electrodes of a discharge lamp

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0589081A1 (fr) * 1992-09-24 1994-03-30 Knobel Ag Lichttechnische Komponenten Circuit pour alimenter une lampe fluorescente avec mesure du courant passant par la lampe
EP0707438A2 (fr) * 1994-10-13 1996-04-17 Tridonic Bauelemente GmbH Ballast pour au moins une lampe à décharge
DE69919516T2 (de) * 1998-02-18 2005-02-03 Pls Systems Ab Verfahren zum betrieb von niederdruckentladungslampen
US20050067973A1 (en) * 2001-11-23 2005-03-31 Marcel Beij Device for heating electrodes of a discharge lamp

Also Published As

Publication number Publication date
EP1932398B1 (fr) 2011-06-08
DE102005047985A1 (de) 2007-04-12
ATE512568T1 (de) 2011-06-15
EP1932398A1 (fr) 2008-06-18

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