EP2625930B1 - Appareil de commande à température critique réglable - Google Patents

Appareil de commande à température critique réglable Download PDF

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Publication number
EP2625930B1
EP2625930B1 EP11763885.8A EP11763885A EP2625930B1 EP 2625930 B1 EP2625930 B1 EP 2625930B1 EP 11763885 A EP11763885 A EP 11763885A EP 2625930 B1 EP2625930 B1 EP 2625930B1
Authority
EP
European Patent Office
Prior art keywords
operating device
temperature
critical temperature
control unit
control circuit
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.)
Active
Application number
EP11763885.8A
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German (de)
English (en)
Other versions
EP2625930A1 (fr
Inventor
Simon Maier
Jürgen FINK
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.)
Tridonic GmbH and Co KG
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Tridonic GmbH and Co KG
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Publication date
Application filed by Tridonic GmbH and Co KG filed Critical Tridonic GmbH and Co KG
Publication of EP2625930A1 publication Critical patent/EP2625930A1/fr
Application granted granted Critical
Publication of EP2625930B1 publication Critical patent/EP2625930B1/fr
Active 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
    • H05B41/26—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
    • H05B41/282—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
    • H05B41/285—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2851—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • H05B41/2856—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against internal abnormal circuit 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • H05B45/56—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving measures to prevent abnormal temperature of the LEDs
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/175—Controlling the light source by remote control

Definitions

  • the invention relates to a device for operating lamps, such as fluorescent lamps, gas discharge lamps, light-emitting diodes (LEDs), organic light-emitting diodes (OLEDs), halogen lamps, etc.
  • the present invention relates to an operating device which sets or adjusts at least one parameter influencing the temperature development in the operating device regulates, and which changes this parameter to regulate the temperature development.
  • Operating devices for illuminants are known from the prior art, which essentially consist of a current transformer and a control unit.
  • the control unit supplies the current transformer with control signals in such a way that the current transformer provides a desired output power or a desired output current for the lamps from an input voltage. It is already known to change this output power for the purpose of controlling the light emission.
  • the WO2008116496 A1 discloses an operating device according to the preamble of claim 1.
  • the object of the invention is now to give the user of an operating device the possibility of being able to influence the service life of the device, this action being suitable, for example, for increasing this service life.
  • the aim of the task is to create a possibility for changing and adapting the service life of an operating device, in particular for lamps.
  • This object is achieved according to the invention by the features of the independent claims.
  • the dependent claims further develop the central idea of the invention in a particularly advantageous manner.
  • an operating device for at least one illuminant comprising a control circuit which adjusts or regulates at least one parameter influencing the temperature development in the operating device and which detects a temperature in the operating device or in its surroundings, and one with the control circuit connected or integrated in this memory, in which at least one critical temperature can be stored, the control circuit changing the parameter for reducing the temperature development when the critical temperature is exceeded, the value of the critical temperature being adjustable by a manual or data-technical interface on the operating device.
  • the manual interface for setting the value for the critical temperature can be designed in the form of at least one control element that can be set by a user.
  • the advantage of this embodiment is that a user can set the critical temperature directly on the operating device. He can thus set the service life without much effort.
  • a potentiometer in particular a rotary or sliding potentiometer, can be provided as a means for selecting a value for the critical temperature. It is advantageous in this embodiment that a potentiometer is an inexpensive option for setting a critical temperature. This also allows the user to select a value from a variety of individual values. It can also set a specific value from a whole continuous range of temperature values.
  • the data-technical interface of the operating device can be such a communication interface that signals for setting a critical temperature can be transmitted to the control unit via this interface.
  • the operating device can have a temperature sensor for detecting the temperature in the operating device or in its vicinity.
  • the device itself can advantageously detect an internal temperature or a surrounding temperature corresponding to the internal temperature.
  • the operating device can have an input for receiving data from an external temperature sensor, this external temperature sensor being designed to detect the temperature in the operating device or in its surroundings.
  • This external temperature sensor being designed to detect the temperature in the operating device or in its surroundings.
  • the complexity or the size of the operating device can advantageously be reduced as a result.
  • an external temperature sensor it is also possible for an external temperature sensor to be used by several neighboring operating devices.
  • the internal temperature sensor of an operating device can also be used as an external temperature sensor of another operating device, which overall reduces the costs.
  • control unit can switch to a protection mode for reducing the temperature of the operating device.
  • the control unit can be designed to set or regulate a parameter influencing the temperature development in the operating device, for example to reduce the power / current supplied to the lamp or the voltage made available to the lamp or to switch off the lamp.
  • the parameter influencing the temperature development in the operating device can be, for example, the duty cycle or the switching frequency of the converter for the operation of a lamp.
  • the duty cycle can be reduced or the switching frequency of the converter increased. This process can be carried out on the basis of a temperature measurement without measures such as active cooling having to be taken from the outside. It is advantageous that the lamp is not switched off completely, but is only dimmed. This also prevents possible flickering of the lamp, for example, by quickly switching the lamp off and on again.
  • control unit can report this event.
  • An advantage of this embodiment is that the user is informed of this event and possibly takes suitable measures. Accordingly, he can then decide whether another operating device would not be more suitable for a particular luminaire, for example, because the temperature is too high.
  • the control unit can reach or exceed the set critical temperature via an optical Report the display or an acoustic signal to the user. It is advantageous that the user can recognize this in the vicinity of the lamp and possibly take a suitable measure.
  • Reaching or exceeding the set critical temperature can be stored in the storage unit or reported via the communication interface.
  • the advantage of saving is that every exceeding of the critical temperature can be documented. The life cycle and possibly the theoretical remaining service life of the control gear can thus be determined. The period of time during which the critical temperature has been exceeded can also be stored.
  • the advantage of a message via the communication interface is, for example, that the critical temperature can be monitored centrally in a lighting system. In this case, the messages sent via the communication interface may also be saved centrally.
  • the setting or selection of a value of the critical temperature can be documented or reported using the manual or data interface. This can be done by storing it in the storage unit or by reporting via the communication interface.
  • An advantage of this embodiment is that it can be traced whether the lifespan of the operating device has now been increased or decreased.
  • an operating device for at least one illuminant, having a storage unit for storing at least two different values for a critical temperature of the operating device, means for selecting a value for the critical temperature, and a control unit for controlling the electrical energy transmitted to the illuminant, which is designed to monitor the temperature of the operating device and with the selected critical temperature to compare.
  • an electronic ballast comprising an operating device described above is provided.
  • a luminaire having an operating device described above and connected lighting means.
  • the invention clearly relates to an operating device 1 in the form of, for example, an electronic ballast.
  • the control gear 1 can also be equipped with a microcontroller as control circuit 5.
  • the operating device 1 is usually operated via line voltage lines 2 with line voltage V AC .
  • V AC line voltage
  • a DC voltage can also be provided, which is provided, for example, by a battery.
  • this voltage is usually rectified by an input block 16 and, if necessary, filtered.
  • This line voltage V AC rectified by the input block 16 is made available to a converter 4 or voltage converter, which in turn converts the line voltage V AC into an output voltage v suitable for the operation of a lamp 6.
  • a control circuit 5 serves to control or regulate the converter 4 in order to output a desired output voltage v.
  • the control circuit 5 is preferably also supplied by the mains voltage V AC .
  • the converter 4 controlled by the control unit 5 is used to supply the illuminant 6 with preferably variable electrical energy.
  • the converter 4 usually comprises at least two switches 15 or circuit breakers which can be controlled by the control circuit 5.
  • the frequency of the output voltage v is varied, among other things, by appropriate and known control of the switches 15.
  • the switching frequency of the switches 15 can be changed in particular to control the brightness of the illuminant 6.
  • One or more lamps 6 can be controlled by the operating device 1.
  • the illuminants that can be used in the circuit arrangement shown can be, for example, fluorescent lamps, gas discharge lamps, light-emitting diodes (LEDs), organic light-emitting diodes (OLEDs), or halogen lamps. If a plurality of lamps 6 are controlled by the operating device 1, they can be connected in series and / or in parallel.
  • the operating device comprises an internal temperature sensor 12 and / or an input 14 for connecting an external temperature sensor 13.
  • the control circuit 5 connected to the temperature sensor 12 and to the input 14 can thus directly measure the temperature in the operating device 1 or in its vicinity.
  • control circuit 5 can determine the temperature indirectly by internal measurements of electrical parameters such as voltages, currents, resistances, etc. This type of temperature determination is known per se.
  • the control circuit 5 can, for example, receive the lamp voltage of the lamp as a feedback signal via a corresponding measuring point. Furthermore, the control circuit 5 can measure the lamp current of the lamp 6 via a corresponding low-resistance electrical measuring resistor (“shunt”).
  • the ambient temperature of the illuminant 6 and thus of the operating device 1 can thereby be obtained. This can preferably be done using the characteristic curve of the lamp. In fact, the current-voltage diagram of a lamp is usually dependent on its ambient temperature.
  • the characteristic curves of the lamp 6 can thus be stored in a memory 7, so that when measuring electrical lamp parameters such as lamp current or lamp voltage, the control circuit 5 can determine the ambient temperature of the lamp and thus the ambient temperature of the operating device 1.
  • the temperature measurement can be determined by a microcontroller, for example, when the operating device is designed.
  • the temperature Tc critical for the operation of the operating device 1 can be set by a user from outside, for example via a bus signal or manually.
  • the critical temperature is to be understood as the temperature of the operating device 1 above which the operating device 1 takes one or more protective measures. These protective measures are used to set or regulate a parameter influencing the temperature development in the operating device 1. As already explained, a temperature T in the operating device 1 or in its surroundings is also detected. These protective measures can be, for example: switching off the lamp 6, reducing the power transmitted to the lamp 6, optical 10 or acoustic 11 display, outputting the storage of a message in the memory 7, automatic feedback via a communication channel 3.
  • the optical 10 or the acoustic The display can consist, for example, of a red LED when the critical temperature Tc is exceeded switch on or generate an acoustic signal via a loudspeaker.
  • the reduction in the power p or current i supplied to the illuminant 6 or the voltage v made available, or else the visual display 10 or acoustic display 11 can be achieved by changing the duty cycle or the switching frequency of the converter 4.
  • a data technology interface or communication interface 9 is provided on the operating device 1, which is connected to the control circuit 5 and to which the communication channel 3 can be connected.
  • the communication interface 9 can preferably be designed as a digital interface, in particular according to the DALI (Digital Addressable Lighting Interface) standard.
  • the operating device 1 can report via this communication interface 9 that the set critical temperature Tc has been reached or exceeded, for example, by a central control unit 17 connected to the communication channel 3.
  • the critical temperature Tc is preferably stored in the memory 7, wherein the memory can alternatively also be arranged outside the operating device 1.
  • This critical temperature Tc can according to the embodiment of the Fig. 1 manually set or changed by a user.
  • an operating element 8 is provided in the operating device 1.
  • the control element 8 can also be arranged outside the operating device 1.
  • a control element can be a potentiometer, or more complex control elements such as a keyboard.
  • this critical temperature Tc can be set or changed via the communication channel 3, for example by the central control unit 17.
  • a changeable critical temperature Tc is stored in the memory 7, but rather a life table.
  • a lifetime table according to the invention is in Fig. 2 shown, and defines a life expectancy for the operating device 1 as a function of the critical temperature Tc.
  • three different critical temperature values are given as well as the corresponding service life, which should not be expected if the respective critical temperature is not exceeded.
  • the manufacturer of the operating device 1 thus transfers this life table to the user, in which the expected average life times for the temperatures are stored within the permissible range for the critical temperature.
  • the user can then select a value for the critical temperature Tc defined in the life table. This selection can also be made via a command sent via communication channel 3.
  • temperature levels can be provided, which can be set with one another or also differently, the protective measures being more stringent the higher the level of critical temperature reached.
  • a pure documentation of the exceeding can take place, at a further temperature level a reduction in output, and at an even higher level of the critical temperature then a complete or partial shutdown process.
  • an adaptive critical temperature can also be provided, i.e. the history of temperature overruns and the extent of the overshoot can be adaptively converted into a changed determination of the critical temperature Tc.
  • the release of a higher critical temperature can be checked by the manufacturer by the manufacturer either providing codes that can be transmitted via the communication interface or by providing hardware by means of which the higher critical temperature can be selected.
  • a user of an operating device 1 can set his own critical temperature and, in combination with the stored life table, can select or determine the desired life himself.
  • the service life can be increased by lowering the critical temperature.
  • the reaction of the device when the critical temperature is exceeded can be different.
  • the control circuit can regulate the output power p or the output current i or also the voltage v provided by the operating device (ie with a feedback signal) or control it. Alternatively or additionally, it can generate visual or acoustic signaling in the event of overtemperature, so that the user himself should take a countermeasure. Furthermore, the exceeding can be logged in such a way that, for example, the number of times is stored in the memory 7 or how high the set critical temperature was exceeded.

Claims (14)

  1. Appareil de commande (1) pour au moins un moyen d'éclairage (6), comprenant
    - un circuit de commande (5), qui règle ou régule au moins un paramètre influant sur l'évolution de la température dans l'appareil de commande (1) et qui mesure une température (T) dans l'appareil de commande (1) ou dans son environnement et
    - une mémoire (7), reliée avec le circuit de commande (5) ou intégrée dans celui-ci, dans laquelle au moins une température critique (Tc) est enregistrée,
    le circuit de commande (5) modifiant, lors du dépassement de la température critique (Tc), le paramètre influant sur l'évolution de la température,
    caractérisé en ce que
    l'appareil de commande est conçu de façon à ce que la valeur de la température critique (Tc) puisse être réglée grâce à une interface manuelle ou informatique de l'appareil de commande (1) par un utilisateur de l'appareil de commande,
    la température critique (Tc) étant prédéterminée avec une largeur de bande déterminée.
  2. Appareil de commande (1) selon la revendication 1,
    l'interface manuelle étant conçue pour le réglage de la valeur pour la température critique (Tc) sous la forme d'au moins un élément de commande (8) réglable par un utilisateur.
  3. Appareil de commande (1) selon la revendication 1 ou 2,
    un potentiomètre, plus particulièrement un potentiomètre rotatif ou coulissant, étant utilisé comme moyen de sélection de la valeur de la température critique (Tc).
  4. Appareil de commande (1) selon l'une des revendications précédentes,
    l'interface informatique étant une interface de communication (9) par l'intermédiaire de laquelle des signaux de réglage d'une température critique (Tc) peuvent être transmis à l'unité de commande (5).
  5. Appareil de commande (1) selon l'une des revendications précédentes,
    comprenant un capteur de température (12) pour la mesure de la température (T) dans l'appareil de commande (1) ou dans son environnement.
  6. Appareil de commande (1) selon l'une des revendications précédentes,
    comprenant une entrée (14) pour la réception de données d'un capteur de température externe (13) pour la mesure de la température (T) dans l'appareil de commande (1) ou dans son environnement.
  7. Appareil de commande (1) selon l'une des revendications précédentes,
    moyennant quoi, dès que la température (T) mesurée atteint ou dépasse la température critique (Tc) réglée, l'unité de commande (5) passe dans un mode de protection afin de réduire la température (T) de l'appareil de commande (1).
  8. Appareil de commande (1) selon la revendication 7,
    moyennant quoi, dans le mode protection, l'unité de commande (5) est conçue pour arrêter le moyen d'éclairage (6) ou pour réduire la puissance (p) ou le courant (i) introduit dans le moyen d'éclairage (6) ou la tension (v) mise à la disposition du moyen d'éclairage (6).
  9. Appareil de commande (1) selon l'une des revendications précédentes,
    moyennant quoi, dès que la température (T) mesurée atteint ou dépasse la température critique (Tc) réglée, l'unité de commande (5) signale cet événement.
  10. Appareil de commande (1) selon la revendication 9,
    l'unité de commande (5) signalant à l'utilisateur le fait que la température critique (Tc) réglée a été atteinte ou dépassée via un affichage optique (10) ou un affichage acoustique (11).
  11. Appareil de commande (1) selon la revendication 9 ou 10,
    le fait que la température critique (Tc) réglée a été atteinte ou dépassée étant enregistrée dans l'unité de mémoire (5) ou étant signalée par l'intermédiaire de l'interface de communication (9).
  12. Appareil de commande (1) selon l'une des revendications précédentes,
    le réglage d'une valeur pour la température critique (Tc) étant documenté via l'interface manuelle ou informatique dans l'unité de mémoire (5) ou signalé par l'intermédiaire de l'interface de communication (9).
  13. Ballast électronique comprenant un appareil de commande (1) selon l'une des revendications précédentes.
  14. Luminaire comprenant un appareil de commande (1) selon l'une des revendications 1 à 12 ainsi que des moyens d'éclairage (6) raccordés.
EP11763885.8A 2010-10-05 2011-09-14 Appareil de commande à température critique réglable Active EP2625930B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010041987A DE102010041987A1 (de) 2010-10-05 2010-10-05 Betriebsgerät mit einstellbarer kritischer Temperatur
PCT/EP2011/065907 WO2012045555A1 (fr) 2010-10-05 2011-09-14 Appareil de commande à température critique réglable

Publications (2)

Publication Number Publication Date
EP2625930A1 EP2625930A1 (fr) 2013-08-14
EP2625930B1 true EP2625930B1 (fr) 2020-01-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP11763885.8A Active EP2625930B1 (fr) 2010-10-05 2011-09-14 Appareil de commande à température critique réglable

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EP (1) EP2625930B1 (fr)
DE (2) DE102010041987A1 (fr)
WO (1) WO2012045555A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102011053190B4 (de) * 2011-09-01 2017-11-23 Hella Kgaa Hueck & Co. Steuergerät für Leuchten, zum Beispiel Kfz-Leuchten, insbesondere LED-Leuchten
AT14947U1 (de) * 2013-10-23 2016-09-15 Tridonic Gmbh & Co Kg Betriebsgerät und Verfahren zum Betreiben wenigstens einer Leuchtdiode
DE102019132461A1 (de) * 2019-11-29 2021-06-02 Tridonic Gmbh & Co Kg Erhöhung der Lebensdauer von Betriebsgeräten

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US5019769A (en) * 1990-09-14 1991-05-28 Finisar Corporation Semiconductor laser diode controller and laser diode biasing control method
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Also Published As

Publication number Publication date
DE112011103353A5 (de) 2013-07-25
WO2012045555A1 (fr) 2012-04-12
DE102010041987A1 (de) 2012-04-05
EP2625930A1 (fr) 2013-08-14

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