EP2522199B1 - Procédé combiné pour faire fonctionner un élément luminescent électrique et circuit d'exploitation - Google Patents

Procédé combiné pour faire fonctionner un élément luminescent électrique et circuit d'exploitation Download PDF

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Publication number
EP2522199B1
EP2522199B1 EP11700393.9A EP11700393A EP2522199B1 EP 2522199 B1 EP2522199 B1 EP 2522199B1 EP 11700393 A EP11700393 A EP 11700393A EP 2522199 B1 EP2522199 B1 EP 2522199B1
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European Patent Office
Prior art keywords
pulse
led
modulated current
led module
dimming
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EP11700393.9A
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German (de)
English (en)
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EP2522199A2 (fr
Inventor
Michael Zimmermann
Reinhold Juen
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Tridonic GmbH and Co KG
Tridonic AG
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Tridonic GmbH and Co KG
Tridonic AG
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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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H05B45/22—Controlling the colour of the light using optical feedback
    • 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]
    • H05B45/20—Controlling the colour of the light
    • 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]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • 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]
    • H05B45/40—Details of LED load circuits
    • H05B45/44—Details of LED load circuits with an active control inside an LED matrix
    • H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines

Definitions

  • the present invention generally relates to lamp operating devices or systems and methods by means of which light sources such as light emitting diodes (LEDs) can be operated.
  • LEDs light emitting diodes
  • a particular field of application of the present invention is street lighting.
  • street lighting there is generally the problem that, due to different regulations regarding the distribution of light intensity at the bottom, the manufacturer of street lamps has to make very many different adjustments with regard to the light sources.
  • mechanical adjustments are currently being made, for example between the reflector and the light source, in particular the high-pressure lamp.
  • An LED street lamp has advantages in this regard in that at least two different LED module chains can be provided, and the light intensity distribution adjusting on the floor can be set by selectively dimming the at least two different LED light chain modules.
  • the light intensity distribution adjusting on the floor can be set by selectively dimming the at least two different LED light chain modules.
  • LED street lights are operated via a pulse-modulated control of the LEDs, for example a PWM (Pulse Width Modulation) control.
  • PWM Pulse Width Modulation
  • this calibration takes place at the factory by reducing the maximum value of the duty cycle of the PWM control to less than 100%. In other words, for calibration, the maximum on-time of the pulse modulated current to supply the LEDs is below 100%.
  • a problem that occurs is that when delivering such LED street lights typically one of the two LED chains is limited to maximum operation, which is below the maximum possible 100% duty cycle. In operation, when the street lamp is now dimmed to a low brightness, it is known that there may be a critical flicker in the generated light or critical stroboscopic effects.
  • the wavelength and color of the LEDs can be kept constant in the wide upper dimming range above 10%.
  • the LEDs are switched off thanks to amplitude dimming without the flickering or stroboscopic effects caused by PWM modulation in this area.
  • both techniques are used in such a way that the dimming behavior is between 2% and 10% continuously and without noticeable step changes.
  • a backlight for LCD displays is known, on the one hand to adjust the current within a PWM pulse to achieve a color balance of different LEDs and on the other hand to control the overall brightness of the so-called LED backlight by adjusting the duty cycles of the PWM signal.
  • the invention is based on the object to improve a method and system for lighting described above.
  • the invention is based on the object that an LED-based lighting means, in particular LED street lights, can be configured such that negative effects such as flickering of the generated light or stroboscopic effects are as much as possible mitigated and to enable a uniform power consumption.
  • a method for operating at least one light-emitting means, in particular a light-emitting diode (LED) in at least two LED modules.
  • the light emitting diode is operated by a pulse modulated current, wherein the turn off duration of the pulse modulated current from an external dimming command is controllable, and the amplitude of the pulse modulated current is adjustable only dependent on a longer-term calibration of the light output or compensation of the light output.
  • a positive edge of the pulse-modulated current (I4) for Operating a first LED module (4) of the at least two LED modules (4, 5) and a positive edge of the pulse-modulated current (I5) for operating a second LED module (5) of the at least two LED modules (4 , 5) offset in time such that a pulse of the pulse-modulated current (I4) for operating the first LED module (4) in the OFF period of the pulse modulated current (I5) for operating the second LED module (5) and the positive edge of the pulse-modulated current (I4) for operating the first LED module (4) coincides in time with a negative edge of the pulse-modulated current (I5) for operating the second LED module (5).
  • this method is capable of dimming LED modules or LED chains in each case both by pulse width modulation (PWM) as well as amplitude. Furthermore, this method is capable of converting incoming external dimming commands (from a bus such as DALI, motion sensors, daylight sensors, etc.) to PWM dimming, while amplitude dimming is used to compensate for long-term effects (local adaptation, aging effects, temperature, Temperature sensor) can be used.
  • PWM pulse width modulation
  • the switch-off duration of the pulse-modulated current may be controllable as a function of measurement data acquired externally by a sensor.
  • the amplitude of the pulse-modulated current may be adjustable to set a maximum brightness and / or to compensate for the aging of the LED.
  • a plurality of LED modules or LEDs can be operated by a plurality of LED modules.
  • Each LED module can be supplied with a pulse modulated current, with the amplitude of the pulse modulated current being individually adjustable for each LED module.
  • At least two LED modules can be operated in such a way that a single dimming command results in the simultaneous dimming of the at least two LED modules (4, 5).
  • an operating device for operating at least one luminous means, in particular a light-emitting diode (LED) in at least two LED modules.
  • the operating device has a supply input for supplying the operating device with electrical energy, a data input for receiving control or dimming commands, at least two outputs for supplying the LED modules, at least two LED module supply units for supplying the LED modules with a pulse modulated current, and a control unit for determining the turn-off duration of the pulse-modulated current in response to an external dimming command, and for determining the amplitude of the pulse-modulated current depending on a calibration of the light output or compensation of the light output of the LEDs.
  • Fig. 1 shows an inventive embodiment with reference to a street lamp 1.
  • the street lamp 1 includes a standard way a lamppost 3, which is firmly connected to the ground 12 or with a road surface.
  • a lamp 2 is mounted in the upper region of the lamppost 3.
  • the lamp 2 is anchored at the upper end of the cylindrical lamppost 3.
  • the luminaire 2 comprises at least one luminous means, for example in the form of a light-emitting diode (LED), wherein the LED can be an inorganic and an organic LED.
  • the luminaire 2 preferably comprises at least two Illuminant in the form of two LED modules 4, 5, which are each supplied via a power supply line 8 with power.
  • a control line 9 leads to the LED modules 4, 5 for external control of the operation and, for example, the brightness of the LED modules 4, 5.
  • the LED street lamp 1 is equipped with two different light cones, which can be individually mixed with each other.
  • the LED modules 4, 5 preferably produce different illuminations on the floor 12.
  • a first LED module 4 illuminates a first area 6 at the bottom and a second area 7 ', 7 "illuminate a second LED module 5.
  • Module illuminated area may consist of two sub-areas 7 ', 7 ", which are respectively positioned on both sides of the first area 6. These three areas may overlap slightly to ensure continuous lighting on the floor.
  • Fig. 2 shows a lighting system 10 with two street lamps 1, 1 ', wherein a portion of the road surface 12 is illuminated by both the one 1 and the second street lamp 1'.
  • the number of street lamps can be greater than two.
  • the illumination system 10 further comprises a data bus 11.
  • a data bus 11 is a DALI (Digital Addressable Lighting Interface) bus for Execution of the DALI protocol for the control of lighting control gear.
  • the respective control lines 9, 9 'of the street lamps 1, 1' are connected to the data bus 11, so that the light distribution or the brightness of the illumination system 10 can be controlled centrally by a control unit 14, for example.
  • the control can be performed by any unit connected to the data bus 11.
  • At least one sensor 13 may be provided.
  • the sensor 13 may be, for example, a motion sensor, a daylight sensor, or a rain sensor. It can also be a photosensor for detecting aging effects or chromaticity shifts of the LEDs.
  • the decisive factor is that the sensor is network-capable, and transmits via the data bus 11 measurement data for a specific property of the environment of the illumination system 10, such as the temperature, the brightness or a movement.
  • the central control unit 14 which in turn can send out corresponding dimming commands via the data bus 11.
  • a plurality of sensors 13 are provided, so that the outgoing control unit 14 a plurality of measurement data for Has available.
  • the sensor 13 may itself convert the measurement data into dimming commands and send out.
  • the measurement data are directly recorded by the individual street lamps 1, 1 ', evaluated, and converted into a suitable control of the LED modules 4, 5.
  • Fig. 3 shows a schematic representation of an operating device according to the invention for LEDs or an operating device for at least two LED channels.
  • the operating device 20 of the luminaire 2 comprises a control unit 21, a first module supply unit 24, a second module supply unit 25, a memory 22 and a DC power source 26.
  • the operating device has two inputs, namely a first input 28 for the power supply via the Power supply line 8 and a second input 29 for receiving data that are sent via the line 9 and the data bus 11. These data are preferably control or dimming commands for controlling the LEDs or their brightness.
  • the operating device 20 may also receive other types of data, such as measurement data from a sensor 13 or calibration data.
  • the operating device 20 is designed such that it can also send itself data such as confirmation data or status data via the line 9 in the bus 11.
  • the central unit of the operating device 20 is the control unit, which processes the data received via the second input 29 and performs corresponding control of the LED modules 4, 5.
  • the operating device 20 can control several channels independently of each other.
  • Each channel can control an LED module. These may be, for example, LED arrays with blue LEDs that emit white light using a color conversion agent. It is also possible that each channel drives a different LED color. It should be pointed out in advance that the inventive method is by no means limited to two channels. Rather, it is possible that the method involves three or more channels. For three channels it is e.g. It is conceivable that one channel controls red LEDs, one channel green LEDs and one channel blue LEDs.
  • the DC power source 26 is supplied in operation via the first input 28 from the AC mains with AC voltage. At its output, the DC power source 26 provides a constant DC current I0.
  • the DC power source 26 preferably comprises a rectifier for rectifying the mains voltage, a voltage converter for lowering the rectified mains voltage and a converter for generating the direct current I0.
  • the memory 22 contains data which are preferably used to calibrate the luminaire 2. These data can relate to the aging process of the LEDs and / or to a maximum brightness value which can not be exceeded. Preferably, such data relate to one of the LED modules 4, 5, or to all the LED modules of the luminaire.
  • the data can be stored in the memory 22 in the factory in advance get saved. However, the data can also be stored in operation via the line 9 from the control unit 21 in the memory 22.
  • control unit 21 is now able either to read the calibration data stored in the memory 22 or also to receive calibration data via the line 9 and the bus 11.
  • the control unit 21 calculates, in accordance with the calibration data, the magnitude of the current supplied to the LED module.
  • Fig. 4 is a representation of a non-inventive time profile of the amplitude of the supply current for the LED modules 4, 5 shown.
  • the amplitude I0,4 of the pulse modulated current I4 for the first LED module 4 corresponds to the amplitude of the direct current I0 provided by the DC power source 26. This means that the first LED module 4 should not be calibrated, or that its maximum brightness does not have to be reduced.
  • the maximum amplitude I0.5 of the pulse-modulated current I5 for the second LED module 5 is smaller than the rated direct current I0. Accordingly, the LEDs 23 of the second LED module 5 will generate a darker light than the first LED module 4 under the same dimming conditions.
  • the first module supply unit 24 is supplied by the direct current I0 and controlled by the control unit 21.
  • the module supply unit 24 receives from the control unit 21 information regarding the maximum amplitude I0,4 of the pulse-modulated current I4, and generates a corresponding in Fig. 5 shown pulse modulated current I4, which has a maximum amplitude I0,4 and a duty cycle T1 / T0.
  • the LED module 4 is operated by this current I4, and consists of a plurality of LEDs 23, which are combined by parallel and / or series connection.
  • the construction and operation of the second module supply unit 25 and the second LED module 5 are similar to those of the first module supply unit 24 and the first LED module 4.
  • Fig. 6 is a further illustration of the time course of the modulation of the supply current I4, I5 for the LED modules 4, 5 shown.
  • the two LED modules 4, 5 and the two channels are PWM-operated in this embodiment, each with a duty cycle of 30%.
  • the maximum amplitude of the pulse modulated current I4 ', I5' of the two channels is set to the values I0,4, I0,5 according to a calibration.
  • the PWM pulses of the two channels are timed to each other such that a PWM pulse of the first channel in the PWM off period of the second channel lies. This means that the one or more LEDs connected to or driven by the first channel will light up when the one or more LEDs of the second channel are turned off.
  • the positive edge of a PWM pulse of the first channel coincides in time with the negative edge of a PWM pulse of the second channel.
  • the LED-based street lamp 1 is preconfigured by the manufacturer for local regulations such that operation in the region of 100% dimming actually achieves a 100% duty cycle of all LED modules 4, 5 corresponds.
  • FIGS. 7 and 8 refer to the operation of the LED modules 4, 5, wherein the long-term calibration of the lamp 2 requires that the maximum generated brightness of the lantern 1 and the lamp 2 permanently at 80% of the actual brightness achievable with the luminaire.
  • the duty cycle remains at 100% and the maximum amplitude of the PWM current is reduced to 80% of the rated current I0.
  • the adaptation to the local conditions is achieved according to the invention by pure amplitude dimming.
  • the effect is achieved that at 100% dimming operation optimum light quality in terms of 100% duty cycle is present.
  • the full range of PWM dimming is available since the manufacturer does not already limit the duty cycle.
  • Another advantage is that now the two or even more LED channels or LED modules 4, 5 of a single lamp 2 is no longer with different PWM values must be controlled in order to possibly make a different calibration, but can be treated as a single control channel. This is made possible by the fact that, starting now from the possibly differently set amplitude values I0,4, I0,5, the PWM duty cycles are changed simultaneously for all channels. Thus, for example, with a single DALI command the concurrent dimming of multiple channels of the same luminaire can be achieved.
  • incoming dimming commands are always converted only in one change of the duty cycle (PWM dimming), although the drive circuit can drive at least two LED module strings both by amplitude dimming and by PWM dimming.
  • the PWM dimming between 0 and 100% duty cycle is reserved for the conversion of incoming dimming commands. All other adaptation effects (aging compensation, adjustment to local regulations, etc.) are achieved by amplitude dimming. In particular with regard to the compensation of aging effects of the LEDs, it can be provided that all LED module chains in the delivered state are first operated with an amplitude value below 100% rated value I0 of the current in order to have a sufficient margin for compensating for aging effects.
  • the two different LED channels controlled by the control unit can each be the same color, in particular white.

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

Claims (10)

  1. Procédé d'exploitation d'au moins un moyen d'éclairage, sous la forme d'une diode électroluminescente, LED, (23), dans au moins deux modules à LED (4, 5), dans lesquels la diode électroluminescente (23) est exploitée par un courant modulé par impulsions (I4, I5),
    des commandes de variations externe étant converties en une variation d'un paramètre déterminant la puissance de la modulation par impulsions, comme le rapport cyclique,
    un flanc positif du courant modulé par impulsionss (I4) pour l'exploitation d'un premier module à LED (4) des au moins deux modules à LED (4, 5) étant décalé dans le temps par rapport à un flanc positif du courant modulé par impulsions (I5) pour l'exploitation d'un deuxième module à LED (5) des au moins deux modules à LED (4, 5), de façon à ce qu'une impulsion du courant modulé par impulsions (I4) pour l'exploitation du premier module à LED (4) se trouve dans la durée de désactivation du courant modulé par impulsions (I5) pour l'exploitation du deuxième module à LED (5),
    caractérisé en ce que
    un calibrage à long terme de la puissance lumineuse ou une compensation de la puissance lumineuse des LED a lieu uniquement par une variation de l'amplitude du courant modulé par impulsions et
    le flanc positif du courant modulé par impulsions (I4) pour l'exploitation du premier module à LED (4) coïncide temporellement avec un flanc négatif du courant modulé par impulsions (I5) pour l'exploitation du deuxième module à LED (5).
  2. Procédé selon la revendication 1,
    la variation du paramètre de modulation par impulsions étant commandée en fonction de données de mesure mesurées en externe par un capteur (13).
  3. Procédé selon la revendication 1 ou 2,
    l'amplitude (I0,4, I0,5) du courant modulé par impulsions (I4, I5) étant réglé en fonction d'un calibrage ou d'une compensation qui est à long terme par rapport à la fréquence des commandes de variation.
  4. Procédé selon l'une des revendications précédentes,
    l'amplitude (I0,4, I0,5) du courant modulé par impulsions (I4, I5) pouvant être réglée pour le réglage d'une luminosité maximale et/ou pour la compensation du vieillissement des LED (23).
  5. Procédé selon l'une des revendications précédentes,
    les LED (23) étant exploitées par plusieurs modules à LED (4, 5).
  6. Procédé selon la revendication 5,
    chaque module à LED (4, 5) étant alimenté par un courant modulé par impulsions (I4, I5), l'amplitude (I0,4, I0,5) du courant modulé par impulsionss (I4, I5) pouvant être réglée individuellement pour chaque module à LED (4, 5).
  7. Procédé selon l'une des revendications précédentes,
    au moins deux modules à LED (4, 5) étant exploitées de façon à ce qu'une seule commande de variation ait pour conséquence la variation synchronisée des au moins deux modules à LED (4, 5).
  8. Unité de commande intégrée, plus particulièrement ASIC, microcontrôleur ou hybride de ceux-ci, qui est conçue pour l'exécution d'un procédé selon l'une des revendications précédentes.
  9. Luminaire à LED, plus particulièrement éclairage de rue à LED, comprenant une unité de commande selon la revendication 8.
  10. Appareil d'exploitation (20) pour l'exploitation d'au moins un moyen d'éclairage, sous la forme d'une diode électroluminescente, LED, (23), dans au moins deux modules à LED (4, 5), comprenant :
    - une entrée d'alimentation (28) pour l'alimentation de l'appareil d'exploitation (20) en énergie électrique,
    - une entrée de données (29) pour la réception de commandes de contrôles ou de variation,
    - au moins deux unités d'alimentation de modules à LED (24, 25) pour l'alimentation des modules à LED (4, 5) avec un courant modulé par impulsions (I4, I5), et
    - une unité de commande pour la détermination du temps de désactivation (T2) du courant modulé par impulsions (I4, I5) en fonction d'une commande de variation externe,
    une impulsion du courant modulé par impulsions (I4) pour l'alimentation d'un premier module à LED (4) des au moins deux modules à LED (4, 5) se trouvant dans le temps de désactivation du courant modulé par impulsions (I5) pour l'alimentation d'un deuxième module à LED (5) des au moins deux modules à LED (4, 5),
    caractérisé en ce que
    l'unité de commande est conçue pour déterminer une amplitude (I0,4, I0,5) du courant modulé par impulsions uniquement pour le calibrage de la puissance lumineuse ou la compensation de la puissance lumineuse des LED et
    un flanc positif du courant modulé par impulsions (I4) pour l'alimentation du premier module à LED (4) coïncide temporellement avec un flanc négatif du courant modulé par impulsions (I5) pour l'alimentation du deuxième module à LED (5).
EP11700393.9A 2010-01-05 2011-01-05 Procédé combiné pour faire fonctionner un élément luminescent électrique et circuit d'exploitation Active EP2522199B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010000672A DE102010000672A1 (de) 2010-01-05 2010-01-05 Kombiniertes Verfahren zum Betreiben eines elektrischen Leuchtmittels sowie Betriebsschaltung
PCT/EP2011/050088 WO2011083117A2 (fr) 2010-01-05 2011-01-05 Procédé combiné pour faire fonctionner un élément luminescent électrique et circuit d'exploitation

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EP2522199A2 EP2522199A2 (fr) 2012-11-14
EP2522199B1 true EP2522199B1 (fr) 2018-03-14

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EP (1) EP2522199B1 (fr)
DE (2) DE102010000672A1 (fr)
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Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10187942B2 (en) * 2011-12-23 2019-01-22 Cree, Inc. Methods and circuits for controlling lighting characteristics of solid state lighting devices and lighting apparatus incorporating such methods and/or circuits
EP2667687B1 (fr) 2012-05-23 2017-01-11 Vossloh-Schwabe Deutschland GmbH Dispositif de commande de fonctionnement et procédé de fonctionnement d'un agencement de moyen d'éclairage
DE102013201915A1 (de) * 2012-10-31 2014-05-15 Tridonic Jennersdorf Gmbh Verfahren und Anordnung zur Steuerung von LEDs
DE102013109866A1 (de) * 2013-09-10 2015-03-12 EBEG Elektra Bahn Elektronik GmbH & Co. KG Vorrichtung und Verfahren zur Ansteuerung und Festlegung der Helligkeit von mehreren Leucht-Dioden (LED) oder LED-Modulen
AT14309U1 (de) * 2013-12-03 2015-08-15 Tridonic Gmbh & Co Kg Treiberschaltung
DE102015205808A1 (de) * 2015-03-31 2016-10-06 Osram Gmbh Schaltungsanordnung zum Betreiben zumindest einer ersten und genau einer zweiten Kaskade von LEDs
DE202015102108U1 (de) * 2015-04-28 2016-08-01 Zumtobel Lighting Gmbh Betriebsgerät zum Betreiben mindestens einer LED und Anordnung zur Beleuchtung mit einem Betriebsgerät und mindestens einer LED
DE102015009736A1 (de) * 2015-07-28 2016-07-21 Diehl Aerospace Gmbh Leuchtmodul und Leuchtsystem
NL2016424B1 (en) 2016-03-11 2017-10-02 Eldolab Holding Bv Modular lighting application.
DE102017223741B4 (de) 2017-12-22 2024-03-28 Lear Corporation Verfahren zur Verringerung sichtbarer Flackereffekte in einer lichtemittierenden Diodenanordnung betrieben durch impulsbreitemodulierte Signale

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19748446A1 (de) * 1997-11-03 1999-05-06 Mannesmann Vdo Ag Vorrichtung zur Ansteuerung von Leuchtdioden
DE19848925B4 (de) * 1998-10-23 2010-04-29 Lumino Licht Elektronik Gmbh Verfahren und Schaltungsanordnung zur Ansteuerung von Leuchtdioden
KR100345965B1 (ko) * 2000-09-15 2002-08-01 페어차일드코리아반도체 주식회사 복합 디밍 회로
EP1220578A3 (fr) * 2000-12-21 2004-11-17 Siemens AG Österreich Procédé et dispositif pour modifier la température de couleur
US6841947B2 (en) * 2002-05-14 2005-01-11 Garmin At, Inc. Systems and methods for controlling brightness of an avionics display
DE20220356U1 (de) * 2002-06-20 2003-06-05 Insta Elektro Gmbh Beleuchtungseinrichtung
EP1445987A1 (fr) * 2003-02-04 2004-08-11 Goodrich Hella Aerospace Lighting Systems GmbH Dispositif de commande pour une lampe comportant une LED émettant une lumière d'au moins deux couleurs
DE102004023186A1 (de) * 2004-05-11 2005-12-08 Siemens Ag Verfahren zum Einstellen eines Farbortes eines von einer LED-Lichtquelle emittierten Lichts
US7088059B2 (en) * 2004-07-21 2006-08-08 Boca Flasher Modulated control circuit and method for current-limited dimming and color mixing of display and illumination systems
ES2298987T3 (es) 2005-02-02 2008-05-16 Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh Metodo y sistema para atenuar fuentes de luz.
US7696964B2 (en) * 2006-06-09 2010-04-13 Philips Lumileds Lighting Company, Llc LED backlight for LCD with color uniformity recalibration over lifetime
DE102007052854A1 (de) * 2007-11-06 2009-05-07 Münchner Hybrid Systemtechnik GmbH Verfahren und Vorrichtung zur Steuerung der Lichtabgabe einer LED-Leuchte
DE202008004790U1 (de) * 2008-04-04 2008-07-03 Semperlux Aktiengesellschaft - Lichttechnische Werke - Leuchte mit LED-Strahlern
DE102008018236A1 (de) * 2008-04-10 2009-10-15 Osram Gesellschaft mit beschränkter Haftung Schaltung zur Kompensation von thermischen Schwankungen, Leuchte, Leuchtmodul und Verfahren zu deren Betrieb
DE102008030365A1 (de) * 2008-06-26 2009-08-20 Continental Automotive Gmbh Einrichtung zur Ansteuerung von in einem Array angeordneten Einzellichtquellen
DE102009003632B4 (de) * 2009-03-17 2013-05-16 Lear Corporation Gmbh Verfahren und Schaltungsanordnung zur Ansteuerung einer Last

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DE102010000672A1 (de) 2011-07-07
DE112011100189A5 (de) 2012-10-18
WO2011083117A3 (fr) 2012-05-03
EP2522199A2 (fr) 2012-11-14

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