EP2452543B1 - Procédé pour faire fonctionner des lampes à décharge de gaz à des températures extérieures basses et appareil de fonctionnement conçu à cet effet - Google Patents

Procédé pour faire fonctionner des lampes à décharge de gaz à des températures extérieures basses et appareil de fonctionnement conçu à cet effet Download PDF

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Publication number
EP2452543B1
EP2452543B1 EP10728238.6A EP10728238A EP2452543B1 EP 2452543 B1 EP2452543 B1 EP 2452543B1 EP 10728238 A EP10728238 A EP 10728238A EP 2452543 B1 EP2452543 B1 EP 2452543B1
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EP
European Patent Office
Prior art keywords
lamp
current
characteristic
gas discharge
limit curve
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EP10728238.6A
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German (de)
English (en)
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EP2452543A1 (fr
Inventor
Dirk FLAX
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Tridonic GmbH and Co KG
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Tridonic GmbH and Co KG
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    • 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
    • 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

Definitions

  • the present invention relates to the operation of gas discharge lamps, especially at low outside temperatures.
  • the US 6,163,114 discloses an operating circuit for a low-pressure discharge lamp, wherein the lamp current is regulated as a function of the lamp temperature or the luminous flux.
  • the US 6,166,491 A discloses a lighting device that regulates the power for a discharge lamp according to the temperature detected by a lamp sensor.
  • the lamp sensor detects the temperature around the discharge lamp.
  • the discharge lamp has an arc tube and an outer bulb, between which an airtight space is defined. Therefore, even at low temperatures, the lamp can be operated without a reduction in brightness. In addition, the lamp brightness increases quickly.
  • the DE 100 58 529 A1 discloses a driving method for a light source in which the light source temperature is determined.
  • the light source temperature is determined.
  • the light source current is determined as a function of a characteristic, so that a constant brightness of the gas discharge light source for a predetermined temperature range is ensured.
  • the EP 1 732 363 A2 relates to a method of operating a lighting system comprising an electric lamp and an electronic ballast.
  • the operation of the electric lamp is adjusted by the electronic ballast.
  • a measurement process characterizing an ambient temperature of the electric lamp is carried out in which at least one measured value is generated, which is compared with a threshold value. If the measured value deviates from the threshold value, an electric power of the electric lamp is changed.
  • a lighting system is described.
  • the invention has therefore set itself the task of providing a solution to the above-mentioned problems.
  • the basic idea of the invention is the measurement of a size which is correlated to low temperatures.
  • the invention thus proposes a method for operating gas discharge lamps, which has a temperature-dependent characteristic current / voltage characteristic U (I). exhibit.
  • I temperature-dependent characteristic current / voltage characteristic
  • the predetermined maximum value of the lamp burning voltage or its gradient amount is current-dependent.
  • the predetermined maximum value can therefore be defined by a limit characteristic G '(I).
  • the limit characteristic G '(I) preferably represents an adaptive threshold as a function of the current with consideration of the lamp characteristic. This can be designed so that a characteristic characteristic U (I) of a gas discharge lamp at room temperature is not limited by this.
  • the limit characteristic G '(I) can act as an active threshold at least for values I ⁇ I S and in the region of the point P S (I S , U S ).
  • the point P S (I S , U S ) is preferably the intersection of characteristic lamp characteristics U (I) different outside temperatures.
  • the limit characteristic G '(I) and / or the limit characteristic G "(I) may depend on the temperature detected directly or indirectly.
  • the minimum value is preferably current-dependent. It can be formed by a limit characteristic G "(I).
  • the limit characteristic G "(I) can therefore represent an adaptive threshold as a function of the current with consideration of the lamp characteristic. This is preferably designed so that a characteristic curve U (I) of a gas discharge lamp at room temperature is not limited by these.
  • the limit characteristic G "(I) can act as an active threshold for at least a limited range of the values I> I S and in the region of the point PS (IS, US).
  • the point PS (IS, US) is preferably the point of intersection of characteristic lamp characteristics U (I) of different outside temperatures.
  • the invention also relates to a method of operating gas discharge lamps having a temperature-dependent characteristic current / voltage characteristic U (I).
  • I temperature-dependent characteristic current / voltage characteristic
  • the point P S (I S , U S ) is preferably the intersection of characteristic lamp characteristics U (I) different outside temperatures.
  • I L can be a current value I L > I S.
  • the predetermined minimum value of the lamp burning voltage can be current-dependent. It can be defined by a limit characteristic G '' (I).
  • the limit characteristic G "(I) preferably represents an adaptive threshold as a function of the current with consideration of the lamp characteristic. This can be designed so that a characteristic curve U (I) of a gas discharge lamp at room temperature is not limited by these.
  • the predetermined maximum value of the lamp burning voltage or its gradient amount is preferably current-dependent.
  • the predetermined maximum value of the lamp burning voltage can be defined by a limiting characteristic G '(I).
  • the limit characteristic G '(I) can thus represent an adaptive threshold as a function of the current with consideration of the lamp characteristic.
  • this is designed so that a characteristic curve U (I) of a gas discharge lamp at room temperature is not limited by these.
  • the limit characteristic G '(I) can act as an active threshold at least for values I ⁇ I S and in the region of the point P S (I S , U S ).
  • the point P S (I S , U S ) is preferably the intersection of characteristic lamp characteristics U (I) different outside temperatures.
  • the invention further relates to a method for operating gas discharge lamps having a temperature-dependent characteristic current / voltage characteristic U (I).
  • this procedure represents a limit characteristic G (I) for values I ⁇ I S an upper threshold and for values I> I S a lower threshold.
  • the point P S (I S , U S ) is the intersection of characteristic lamp characteristics U (I) different outside temperatures.
  • Exceeding the threshold for values I ⁇ I S by the lamp burning voltage or falling below the threshold for values I> I S by the lamp burning voltage is now prevented by increasing the lamp current.
  • a falling below the limit characteristic G can be prevented by the lamp burning voltage by the lamp current is increased.
  • the limit characteristic G (I) preferably represents an adaptive threshold as a function of the current with consideration of the lamp characteristic. This is preferably also designed so that a characteristic characteristic U (I) of a gas discharge lamp at room temperature is not limited by this.
  • the limit characteristic G (I) can be designed so that the lamp characteristic U 22 (I) of a gas discharge lamp at 22 ° C outside temperature at no adjustable lamp current value exceeds the threshold of the limit characteristic G (I).
  • the limit characteristic G (I) can furthermore be designed so that the lamp characteristic U 10 (I) of a gas discharge lamp at 10 ° C. outside temperature for I ⁇ I S is at least partially above the limit characteristic G (I), and thus an impermissible in this range Has borderline injury.
  • the limit characteristic curve of G (I) can be designed so that the lamp characteristic V -15 (I) of a gas discharge lamp at - 15 ° C external temperature for I ⁇ I S at least partially above and I> I S at least partially below the limiting characteristic curve G ( I) and thus has in two areas inadmissible border violations.
  • a measurement can be made that can at least decide whether very high outside temperatures, for example 35 ° C, or very low outside temperatures, for example -10 ° C, are present.
  • an increase in the lamp current takes place only when there are no very high outside temperatures.
  • control circuit preferably an integrated circuit, which is designed to carry out one of the methods according to the invention.
  • the invention also relates to a control device for gas discharge lamps, which has such a control circuit.
  • the invention relates to a luminaire which has the operating device described above and at least one connected gas discharge lamp.
  • the invention in a final aspect, relates to a dimmable operating device for operating at least one gas discharge lamp.
  • the operating device in this case has a drive circuit for driving the at least one gas discharge lamp, wherein the drive circuit sets an operating point P A (I A , U A ) on the at least one gas discharge lamp, which corresponds to a dimming level.
  • the control circuit preferably an integrated circuit, for controlling the control, wherein the control circuit detects the lamp burning voltage U.
  • the control circuit enforces an increase in the dimming level when the operating point P A (I A , U A ) is outside an allowable range, which is limited by at least one limit characteristic G (I / U).
  • the operating device may also have a memory which has stored at least some points of the limit characteristic G (I / U).
  • the control circuit preferably increases the lamp current I to increase the dimming level.
  • the operating device may have at least one temperature sensor. This one preferably takes one Measurement, which leads to at least a rough determination of the temperature at the at least one gas discharge lamp, for example, with an inaccuracy of +/- 20 ° C.
  • Fig. 1 shows a current-voltage diagram with characteristics of a gas discharge lamp at different outdoor temperatures, more precisely at 22 ° C, at 10 ° C and at -15 ° C. Under ambient temperature is the ambient temperature of the gas discharge lamp understood. 22 ° C is about the usual temperature in a room dar. 10 ° C and -15 ° C, however, are temperatures that can occur when used outdoors.
  • Fig.1 can be seen that for current values I> I S, the voltage decreases with increasing current. In this area, the characteristics are therefore decreasing.
  • the voltage is at very low temperatures, for example at -15 ° C lower than at higher, such as 10 ° C.
  • Dimming of the gas discharge lamp via an adjustment of the lamp current. For a low dimming level so the lamp current is reduced, increased for a high lamp current. This means that a low dimming level on a characteristic of Fig.1 further to the left, a higher one to the right.
  • an inadmissibly high lamp burning voltage can now be avoided by increasing the dimming level.
  • the operating point P A is also pushed further to the right on a characteristic curve.
  • an operating point can thereby reach an impermissible range by setting the dimming to a level that is too low, in particular at low outside temperatures.
  • an operating point it is also possible for an operating point to fall within an inadmissible range due to the outside temperature dropping while the dimming level remains constant.
  • the maximum allowable lamp voltage can be a constant in the simplest embodiment, ie a horizontal straight line from the diagram Fig.1 , for example at 300V.
  • this threshold is active only in the region I ⁇ I S and in the region of the point P S (I S , U S ), ie only in this region Area is limiting. Alternatively, however, this threshold can also apply to all current values, ie to be independent of the current value.
  • Fig. 2 shows, another lower limit characteristic G '' restrict a minimum allowable lamp voltage to a predetermined value.
  • the limit characteristics G 'and G “have a shape which is adapted to the shape of the lamp characteristic.
  • these are preferably designed so that a characteristic curve U (I) of a gas discharge lamp at room temperature is not limited by these.
  • a possible example of a conceivable embodiment is the characteristic G out Fig. 3 for the ranges I ⁇ I S for G 'and I> I S for G''.
  • the method has at least in the region of the intersection point P S two limit characteristic curves G 'and G ", since the critical point can shift.
  • the limit characteristic G ' represents an upper threshold. This is located preferably above the lamp characteristic at room temperature.
  • a temperature measurement is preferably carried out in the method according to the invention. However, this only has to determine whether the outside temperature is very high or very low.
  • the limit characteristic G It is thus possible to make the activation of the lower limit, ie the limit characteristic G ", flexible. At very high temperatures, the limit should be disabled, while being active at very low temperatures. Due to the fact that the burning voltage is constant over a wide range (0 ° C - + 40 ° C) at high dimming levels, the accuracy of the temperature measurement need not be high. If, for example, an inaccuracy of the measurement of + -20 ° C is given and now the threshold is set to 20 ° C, the result is a range of 0 ° C to 40 ° C by the possibility of activating the lower threshold. Since there is no response in this range, the method only restricts the adjustable dimming levels below 0 ° C. If, on the other hand, one had limited the mechanism of the temperature-dependent dimming level, then one would possibly restrict the dimming range in the normal temperature range undesirably.
  • a measurement as a rough estimate can also be made in the area of the operating device, for example in the area of the control circuit.
  • the maximum permissible lamp voltage is a current-dependent limit characteristic G (I), in Figure 3 marked as "limit".
  • G (I) is as in Figure 3 shown, a first rising and then falling again with increasing current value curve. This takes into account the fact that at normal room temperatures, for example at 22 ° C, the lamp burning voltage has exactly this course, ie starting from an extremely low dimming level first rises a little, then drop again, for example in a range of 5% dimming level.
  • the limit characteristic is thus an adaptive threshold as a function of the current with consideration of the lamp characteristic.
  • the limit characteristic may be formed as a threshold using a lamp voltage signal weighted with the lamp characteristic at nominal ambient temperature.
  • the limit characteristic is preferably a continuous function which always leads to the same reaction (independent of the current).
  • a defined range between reaction and reserve for the reaction is constant over the entire dimming range.
  • the resulting limit characteristic G (I) can be multiplied by a defined negative slope function. This achieves an ever-decreasing function for all currents and temperatures. By adjusting the slope and the reference value, the minimum, temperature-dependent lamp current can now be set.
  • the method may also include the lamp impedance as a measure.
  • the threshold formed by the limit characteristic represents an upper threshold in a range I A ⁇ I S. In a range I A > I S , it represents a lower threshold.
  • the shape of the limit characteristic G ensures that the adjustable dimming range is not restricted at standard room temperatures, such as 22 ° C. It is thus raised for any adjustable dimming level by the process of the set dimming level.
  • the characteristic curve for 10 ° C is too high for small current values above the limit characteristic G and thus too high. At 10 ° C, dimming levels below the critical current value are not allowed.
  • the characteristic for -15 ° C is too high for small current values I A ⁇ I S above the limit characteristic G and thus too high. For at least some current values I A > I S , the characteristic below the limit characteristic G is unduly low. At -15 ° C, therefore, no dimming levels below preferably 0.3A are allowed.
  • a temperature measurement is again carried out in the method according to the invention. So it is possible to make the activation of the lower limit, ie the limit characteristic G for I A > I S , flexible. At very high temperatures, the limit should be disabled, while being active at very low temperatures.
  • FIG. 4 shows a flowchart of a first method according to the invention.
  • a set dimming level is read in step S102.
  • the current value I A corresponding to the dimming level is detected. This is set in S104 on the gas discharge lamp. This results in the operating point P A (I A , U A ) at the gas discharge lamp.
  • S105 it is determined whether the set current value I A is larger or smaller than the current value I S at which the lamp characteristics intersect for different temperatures.
  • the lamp burning voltage U (I A ) is impermissibly small, ie, whether it is smaller than the limit value G (I A ) for this current. If the latter is not true, obviously there is no particularly high or very low outside temperature and the process can be terminated. However, if the lamp burning voltage U (I A ) is impermissibly small, then S107 determined whether the outside temperature is high, for example, around 40 ° C. If this is correct, the procedure can also be terminated. However, if this is not true, it is therefore an extremely low outside temperature. In this case, the dimming level is raised. This is done in order to increase the low light output caused by the cold, which is no longer in correct proportion to the set dimming level. It is freely selectable by how much the dimming level is raised, but preferably only by a small step.
  • the lamp burn voltage U (I A ) is unacceptably high, ie, whether it is greater than the limit value G (I A ) for this current. If the latter is not true, obviously there is no particularly low outside temperature and the process can be terminated. However, if the lamp burning voltage U (I A ) is unacceptably high, it is therefore a low outside temperature. In this case, the dimming level is raised. This is done in order to stabilize the unstable operating point caused by the cold. In addition, an unacceptably high lamp voltage is thereby avoided. Preferably, the dimming level is again increased by only a small step.
  • step S109 is jumped back to the beginning. So is constantly monitored and regulated by. In addition, it is possible that the set operating point, if it is in an impermissible range, gradually approaches an allowable range.
  • a second method according to the invention is explained. This offers a further possibility which can be used in addition to or as an alternative to the above method.
  • the gradients of the lamp voltage are determined via the lamp current.
  • Fig. 5 shows a current-voltage diagram with characteristics of a gas discharge lamp at different outside temperatures. Above all, the two characteristics at 10 ° C and at -15 ° C are of interest.
  • the second method now provides for determining the gradient characteristics, ie the first derivative, of at least part of the characteristic curves. These are in Figure 6 shown. It can be seen that the slope of the low current characteristic curves assumes negative values at low temperatures. A characteristic curve at room temperature, on the other hand, has for small current values a positive to slightly negative slope, or an absolute low slope.
  • the method can be carried out, for example, in an active dimming operation or in another specifically instructed lamp current change.
  • Fig. 7 shows a flowchart of the second method according to the invention.
  • the characteristic U (I) in the range around operating point P A is determined in step S202.
  • the gradient for the operating point P A can be determined in S203. If this gradient is greater than the critical threshold value, it jumps back to the start. If the latter does not apply, the dimming level is raised at least by a small step. Afterwards you will jump back to the start.
  • a threshold but one that is dependent on the current I.
  • an adaptive threshold can be advantageously used, which is adapted to the gradient characteristic of a gas discharge lamp at room temperature.
  • this is to be interpreted as that in the above-mentioned cases, in particular those of the description Fig.1-4 The dimming level is raised.
  • Fig. 8 shows a schematic embodiment of an operating device 1 according to the invention in a lamp 9, which is preferably an electronic ballast.
  • the operating device has a drive circuit 2. This is to one Supply current, preferably connected to conventional mains power. In addition, it controls one or more gas discharge lamps 3.
  • the gas discharge lamps can be connected in series and / or in parallel.
  • the operating device also has a control circuit 4.
  • This is preferably an integrated circuit. It can be an ASIC.
  • ASIC application-specific integrated circuit
  • any other form of integrated circuit such as a microcontroller or a hybrid solution, or a conventional circuit can be used.
  • the control circuit is connected to at least one interface 6.
  • This can be a user interface such as a display and / or a keypad. It is also conceivable that the interface establishes a connection with another system, for example a bus system. In this way, the control circuit could communicate, for example, with a central control unit connected to the bus system and / or other connected operating devices.
  • the control unit can receive set dimming commands via the interface. It is also possible that the control circuit exchanges further information or commands via the interface.
  • control unit receives as return signal the lamp burning voltage of one or more gas discharge lamps 3. It is also conceivable that the lamp current I is returned. This can be done via a measuring resistor (shunt) 5.
  • control circuit 4 controls the drive circuit 2.
  • the operating device also has a memory 7. This stores at least some points of the limit characteristic G. Preferably, it is connected to the control circuit.
  • the memory 7 has the point P S (I S , U S ) or at least the current value I S stored.
  • the point P S and the limit characteristic G are already recorded in the memory during the production of the operating device when it is established which gas discharge lamps are to be operated with the operating device. It is also possible that the memory has information of different types of gas discharge lamps.
  • the operating device may also have a temperature sensor 8. This can be used for the method described above.
  • the temperature sensor is connected to the control circuit.
  • both an internal sensor as well as alternatively or additionally an external sensor can be connected to the operating device, in particular the control circuit in the operating device.
  • the temperature can be recorded directly (temperature sensor) or indirectly (via a temperature-dependent parameter).

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  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Claims (16)

  1. Procédé pour faire fonctionner des lampes à décharge de gaz (3), qui présentent une caractéristique courant/tension (U(I)) caractéristique dépendante de la température, dans lequel pour éviter un fonctionnement instable à l'état allumé à des températures extérieures basses un dépassement d'une valeur maximale spécifiée de la tension de fonctionnement de lampe ou d'une valeur de gradient de celle-ci est empêché en augmentant le courant de lampe,
    caractérisé en ce que
    la valeur maximale spécifiée de la tension de fonctionnement de lampe ou de sa valeur de gradient est dépendante du courant et la valeur maximale spécifiée est définie par une caractéristique limite (G'(I)).
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    la caractéristique limite (G'(I)) représente un seuil adaptatif en fonction du courant avec prise en compte de la caractéristique de lampe et celle-ci est configurée de telle sorte qu'une caractéristique (U(I)) caractéristique d'une lampe à décharge de gaz n'est pas limitée par celle-ci à température ambiante.
  3. Procédé selon l'une des revendications 1 ou 2,
    caractérisé en ce que
    la caractéristique limite (G'(I)), au moins pour des valeurs I < IS est dans la zone d'un point (PS(IS, US)), fait office de seuil actif, dans lequel le point (PS(IS, US)) est le point d'intersection de caractéristiques de lampe (U(I)) caractéristiques à différentes températures extérieures.
  4. Procédé selon la revendication 1,
    caractérisé en ce que
    pour compenser une puissance d'éclairage basse à des températures extérieures basses, une descente sous une valeur minimale spécifiée de la tension de fonctionnement de lampe est empêchée pour des intensités de courant spécifiées en augmentant le courant de lampe, dans lequel une augmentation est effectuée uniquement à des températures extérieures en-dessous d'un seuil spécifié, de préférence en-dessous de 20°C.
  5. Procédé selon la revendication 4,
    caractérisé en ce que
    les intensités de courant spécifiées sont limitées à une zone des valeurs I ≈ IS à I=IL, dans lequel le point PS(IS, US) est le point d'intersection de caractéristiques de lampe (U(I)) caractéristiques à différentes températures extérieures et IL est une valeur de courant IL > IS.
  6. Procédé selon l'une des revendications 4 ou 5,
    caractérisé en ce que
    la valeur minimale spécifiée de la tension de fonctionnement de lampe est dépendante du courant et est définie par une caractéristique limite (G''(I)).
  7. Procédé selon la revendication 6,
    caractérisé en ce que
    la caractéristique limite (G''(I)) représente un seuil adaptatif en fonction du courant avec prise en compte de la caractéristique de lampe et celle-ci est configurée de sorte qu'une caractéristique U(I) caractéristique d'une lampe à décharge de gaz n'est pas limitée par celle-ci à température ambiante.
  8. Procédé pour faire fonctionner des lampes à décharge de gaz (3), selon l'une des revendications précédentes, caractérisé en ce que
    - une caractéristique limite (G(I)) représente pour des valeurs I < IS un seuil supérieur et pour des valeurs I > IS un seuil inférieur, dans lequel le point PS(IS, US) est le point d'intersection de caractéristiques de lampe (U(I)) caractéristiques à différentes températures extérieures et,
    - un dépassement du seuil pour des valeurs I < IS par la tension de fonctionnement de lampe ou une descente sous le seuil pour des valeurs I > IS par la tension de fonctionnement de lampe est empêché au moyen d'une augmentation du courant de lampe.
  9. Procédé selon la revendication 8,
    caractérisé en ce que
    pour éviter un fonctionnement instable à l'état allumé à des températures extérieures basses un dépassement d'une valeur maximale autorisée, qui est définie par la caractéristique limite (G(I)), de la tension de fonctionnement de lampe ou d'une valeur de gradient de celle-ci est empêché en augmentant le courant de lampe, et/ou
    en ce que
    pour compenser une puissance d'éclairage basse à des températures extérieures basses une descente sous la caractéristique limite (G(I)) par la tension de fonctionnement de lampe est empêchée en augmentant le courant de lampe.
  10. Procédé selon l'une des revendications 8 ou 9, caractérisé en ce que
    la caractéristique limite (G(I)) représente un seuil adaptatif en fonction du courant avec prise en compte de la caractéristique de lampe, et celle-ci est configurée de telle sorte qu'une caractéristique (U(I)) caractéristique d'une lampe à décharge de gaz n'est pas limitée par celle-ci à température ambiante.
  11. Procédé selon l'une des revendications 8 à 10,
    caractérisé en ce que
    la caractéristique limite (G(I)) est configurée de telle sorte qu'une caractéristique de lampe (U22(I)) d'une lampe à décharge de gaz ne dépasse le seuil de la caractéristique limite G(I) pour aucune valeur réglable du courant de lampe à 22°C de température extérieure, ou
    en ce que
    la caractéristique limite (G(I)) est configurée de telle sorte qu'une caractéristique de lampe (U10(I)) d'une lampe à décharge de gaz se trouve au moins partiellement au-dessus de la caractéristique limite (G(I)) pour I < IS à 10°C de température extérieure et présente ainsi dans cette zone un non-respect de limite non autorisé, ou
    en ce que
    la caractéristique limite (G(I)) est configurée de telle sorte qu'à -15°C de température extérieure une caractéristique de lampe (U-15(I)) d'une lampe à décharge de gaz se trouve au moins partiellement au-dessus de la caractéristique limite (G(I)) pour I < IS et au moins en partie en-dessous de celle-ci pour I > IS et présente ainsi des non-respects de limite non autorisés dans deux zones.
  12. Procédé selon l'une des revendications 8 à 11,
    caractérisé en ce que
    seules des valeurs de courant de lampe sont autorisées, dont les points de fonctionnement correspondants se trouvent au-dessus de toutes les non-respects de limite.
  13. Procédé selon l'une des revendications 8 à 12,
    caractérisé en ce
    qu'une mesure est effectuée, qui peut au moins décider s'il y a des températures extérieures très hautes, par exemple 35°C, ou des températures extérieures très basses, par exemple -10°C, dans lequel de préférence une augmentation du courant de lampe est effectuée uniquement s'il n'y a pas de températures extérieures très hautes.
  14. Appareil de commande à gradation (1) pour le fonctionnement d'au moins une lampe à décharge de gaz (3), présentant
    - un circuit de commande (2) pour commander ladite au moins une lampe à décharge de gaz (3), dans lequel le circuit de commande ajuste un point de fonctionnement (PA(IA, UA)) à ladite au moins une lampe à décharge de gaz (3), qui correspond à un niveau de gradation, et
    - un circuit d'asservissement (4), de préférence un circuit intégré, pour asservir la commande, dans lequel le circuit d'asservissement détecte une tension de fonctionnement de lampe (U),
    caractérisé en ce que
    le circuit d'asservissement (4) impose un hausse du niveau de gradation de préférence au moyen d'une augmentation du courant de lampe si le point de fonctionnement (PA(IA, UA)) se trouve en dehors d'une zone autorisée qui est limitée par au moins une caractéristique limite (G(I/U)).
  15. Appareil de commande à gradation (1) selon la revendication 14,
    caractérisé en ce que
    l'appareil de commande (1) présente une mémoire (7), dans laquelle sont enregistrés au moins quelques points de la caractéristique limite (G(I/U)).
  16. Appareil de commande à gradation (1) selon la revendication 14 ou 15,
    caractérisé en ce que
    l'appareil de commande (1) présente au moins un capteur de température (8), qui effectue une mesure, qui conduit au moins à une détermination approximative de la température à ladite au moins une lampe à décharge de gaz (3), par exemple avec une imprécision de +/-20°C.
EP10728238.6A 2009-07-07 2010-07-05 Procédé pour faire fonctionner des lampes à décharge de gaz à des températures extérieures basses et appareil de fonctionnement conçu à cet effet Not-in-force EP2452543B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200910032028 DE102009032028A1 (de) 2009-07-07 2009-07-07 Verfahren zum Betrieb von Gasentladungslampen bei niedrigen Außentemperaturen und dafür ausgelegtes Betriebsgerät
PCT/EP2010/059548 WO2011003855A1 (fr) 2009-07-07 2010-07-05 Procédé pour faire fonctionner des lampes à décharge de gaz à des températures extérieures basses et appareil de fonctionnement conçu à cet effet

Publications (2)

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EP2452543A1 EP2452543A1 (fr) 2012-05-16
EP2452543B1 true EP2452543B1 (fr) 2015-06-10

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EP (1) EP2452543B1 (fr)
CN (1) CN102474965B (fr)
DE (2) DE102009032028A1 (fr)
WO (1) WO2011003855A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102011085659A1 (de) * 2011-11-03 2013-05-08 Tridonic Gmbh & Co. Kg Getaktete Heizschaltung für Betriebsgeräte für Leuchtmittel
AT16238U1 (de) * 2018-02-06 2019-05-15 Tridonic Gmbh & Co Kg Verfahren zum Betrieb von Leuchtmitteln bei niedrigen Außentemperaturen

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW381409B (en) * 1996-03-14 2000-02-01 Mitsubishi Electric Corp Discharging lamp lighting device
US5850127A (en) * 1996-05-10 1998-12-15 Philips Electronics North America Corporation EBL having a feedback circuit and a method for ensuring low temperature lamp operation at low dimming levels
US6133697A (en) * 1998-05-11 2000-10-17 Mitsubishi Denki Kabushiki Kaisha Dimming apparatus for fluorescent lamps
US6166491A (en) * 1998-06-04 2000-12-26 Toshiba Lighting & Technology Corporation Lighting device and display equipment
DE19838830A1 (de) * 1998-08-26 2000-03-02 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verbesserte Anlaufschaltung für Niederdruck-Entladungslampe
DE10058529A1 (de) * 2000-11-24 2002-05-29 Bosch Gmbh Robert Ansteuerungsverfahren für eine Lichtquelle
US7061191B2 (en) * 2003-07-30 2006-06-13 Lutron Electronics Co., Inc. System and method for reducing flicker of compact gas discharge lamps at low lamp light output level
EP1732363A3 (fr) * 2005-06-09 2014-04-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Dispositif d' éclairage et méthode pour alimenter un tel dispositif
DE102005026718A1 (de) * 2005-06-09 2006-12-14 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Beleuchtungssystem und Verfahren zum Betreiben eines derartigen Beleuchtungssystems
DE102005035466A1 (de) * 2005-07-28 2007-02-01 Tridonicatco Gmbh & Co. Kg Adaptive Regelung der Leistung von Gasentladungslampen
JP4608470B2 (ja) * 2006-08-31 2011-01-12 パナソニック電工株式会社 放電灯点灯装置、及び照明装置
DE102006042954A1 (de) * 2006-09-13 2008-03-27 Tridonicatco Gmbh & Co. Kg Zündung von Gasentladungslampen unter variablen Umgebungsbedingungen

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Publication number Publication date
DE102009032028A1 (de) 2011-01-13
WO2011003855A1 (fr) 2011-01-13
DE112010002851A5 (de) 2012-06-21
CN102474965A (zh) 2012-05-23
CN102474965B (zh) 2014-12-03
EP2452543A1 (fr) 2012-05-16

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