WO2010031103A2 - Dispositif pour faire fonctionner des del - Google Patents

Dispositif pour faire fonctionner des del Download PDF

Info

Publication number
WO2010031103A2
WO2010031103A2 PCT/AT2009/000368 AT2009000368W WO2010031103A2 WO 2010031103 A2 WO2010031103 A2 WO 2010031103A2 AT 2009000368 W AT2009000368 W AT 2009000368W WO 2010031103 A2 WO2010031103 A2 WO 2010031103A2
Authority
WO
WIPO (PCT)
Prior art keywords
memory
led
operating leds
led module
leds
Prior art date
Application number
PCT/AT2009/000368
Other languages
German (de)
English (en)
Other versions
WO2010031103A3 (fr
Inventor
Michael Zimmermann
Eduardo Pereira
Original Assignee
Tridonicatco Gmbh & Co Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tridonicatco Gmbh & Co Kg filed Critical Tridonicatco Gmbh & Co Kg
Priority to CN2009801371237A priority Critical patent/CN102160462B/zh
Priority to DE112009002327T priority patent/DE112009002327A5/de
Priority to EP09741180.5A priority patent/EP2335454B1/fr
Publication of WO2010031103A2 publication Critical patent/WO2010031103A2/fr
Publication of WO2010031103A3 publication Critical patent/WO2010031103A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • H05B45/14—Controlling the intensity of the light using electrical feedback from LEDs or from LED modules
    • 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

Definitions

  • the invention relates to a device for operating LEDs according to the preamble of patent claim 1 and a method for operating LEDs according to the preamble of patent claim 27.
  • Such devices are used in lighting systems to achieve a colored or flat lighting of rooms, paths or escape routes. Usually, the bulbs are driven by operating devices and activated as needed. For such illumination, organic or inorganic light emitting diodes (LED) are used as the light source.
  • LED organic or inorganic light emitting diodes
  • light-emitting diodes are also increasingly being used as the light source.
  • the efficiency and luminous efficacy of light-emitting diodes is being increased more and more so that they are already being used in various general lighting applications.
  • light emitting diodes are point sources of light and emit highly concentrated light.
  • the solution according to the invention for a device for operating LEDs is based on the idea that an LED module controlled by the driver module is present with at least one LED, and a memory for storing information about the LED.
  • the memory can be contained either in the driver module or in the LED module and the information can be changed in the memory. In this way it is possible to achieve a very consistent and uniform illumination of a surface by a light source with LEDs.
  • Fig. 1 shows a device for operating LED according to the prior art
  • FIGS. 2 to 3c show an embodiment of a device according to the invention
  • FIGS. 4 to 5 show an embodiment of an application by a user of the invention
  • Fig. 1 shows the prior art.
  • This device has a driver module 1, and an LED module 5, controlled by the driver module 1, with at least one LED.
  • the LED of the LED module 5 can be selectively controlled via the various An Kunststoffauche- (via the wiring 4).
  • the invention is based on a
  • This device has a driver module 1, and an LED module 5 controlled by the driver module 1 with at least one LED, with a memory for storing information about the LED module 5, wherein the memory is either in the driver module 1 or may be contained in the LED module 5 and the information can be changed in the memory.
  • the memory is preferably designed so that it is non-volatile, that is, it is retained even when a switch-off or failure of the supply voltage.
  • a flash memory can be used.
  • the memory may be included in a driver module 1.
  • the driver module 1 has connections 2 and 3 to which one or more LEDs on a (preferably common) LED module 5 are located via the wiring 4.
  • the LED module 5 may be, for example, a circuit board or a base support, on which one or more LEDs are arranged.
  • the LEDs can be embodied, for example, as a wired LED, as an SMD LED or as a COB LED (chip-on-board LED).
  • the LED module 5 may also have means for ' heat dissipation or cooling.
  • the LEDs can also be selectively controlled via individually controllable channels (via the wiring 4).
  • the individually controllable LED can be selectively controlled on an LED module 5 (for example, turned on, turned off and changed in their brightness).
  • the information in the memory can be changed based on a calibration measurement.
  • the information in the memory can be changed by a correction factor.
  • the information in memory may be modified by a correction factor determined based on a calibration measurement.
  • the correction factor can be changed by a user, for example via a specification via an interface 7.
  • the interface 7 can use both a wired and a wireless transmission.
  • the change of the correction factor for example by a user, may be due to a calibration measurement. This calibration measurement may be performed by a measurement with a sensor 6 (as later described with reference to FIGS. 4 and 5) or only via the user's visual perception.
  • the correction factor may be dependent on the aging or the operating time of the LED module 5.
  • the correction factor may be dependent on the temperature of the LED module 5.
  • the temperature of the LED module 5 can be determined directly via a temperature measurement with a temperature measuring element or indirectly, for example via the evaluation of the characteristic curve of the LED.
  • a sensor 6 can be used, which is introduced into the lighting system for the calibration measurement.
  • the correction factor may be dependent on a color measurement.
  • the color measurement can be done by means of an RGB color measurement, for example a CCD sensor. In this case, the sensor 6 would be an RGB color sensor.
  • the determination of the correction factor can be repeated at regular intervals.
  • the memory can be read out by the driver module via a (preferably digital) interface 7.
  • the memory can be located on the LED module 5 and read when replacing the LED module 5 by the user.
  • the memory may be located on the LED module 5 and read out before replacement of the LED module 5 by the driver module 1 due to a signaling by the user.
  • the memory can also be arranged in a calibration device or on the driver module 1.
  • Information about the type of LED, the wavelength, the color location and / or the intensity of the LED can be stored in the memory. Furthermore, other operating parameters such as the required setpoint operating current through the LED or the maximum permissible current through the LED or also the maximum permissible voltage through the LED can be stored as information in the memory.
  • the signaling for reading the memory on the LED module 5 can be done by the user by a switching sequence on the supply voltage, a digital control command or by other signaling.
  • the information read out can be stored in the memory of the new LED module 5.
  • the driver module 1 can forward the information stored in the memory via a (preferably digital) interface 7 to other driver modules.
  • one or more LED modules 5 can be switched off.
  • 5 individually controllable channels can be selectively switched off within an LED module, so that the individually controllable LED on an LED module 5 can be selectively switched off.
  • only one LED module 5 or only one channel of an LED module 5 can be switched on in each case.
  • the color measurement can be carried out with a sensor 6 (for example an RGB color sensor, preferably a CCD sensor).
  • the sensor ⁇ can also be formed by a plurality of photodiodes, each having a color filter •), so that the photodiodes can be excited only by certain wavelengths or ' wavelength ranges.
  • the sensor 6 may be placed so that it can receive a part of the light emitted by the LED modules 5.
  • the sensor 6 may be placed so that it is shielded from ambient light and can only receive light emitted by the LED modules 5.
  • This partitioning can be done by a cover that is specially designed for the calibration measurement.
  • the sensor 6 may be located.
  • the sensor 6 can also be placed on the reflector 10 of the LED lamp.
  • the sensor 6 may be placed so as to directly or indirectly receive the light of the LED of the LED module 5.
  • the color location and / or the intensity of the LED can be stored so that this information can be stored in the memory.
  • the individual LED modules 5 can be switched on and calibrated one after the other.
  • the calibration can be used to determine the colors of the connected LED modules 5.
  • the individual colors or color locations and / or the intensities of the respectively driven LEDs are determined.
  • An LED module 5 can have different LEDs, which can preferably be controlled independently of each other (selectively) via individual channels. These different LEDs may differ, for example , in terms of their wavelength, color location and / or intensity. From the combination of the individual calibration measurements, which are carried out in succession, the assignment of the colors and the mixture of the individual LEDs required for the output of a desired color by the LED illumination can be determined.
  • LED module 5 may be present, wherein the memory may be contained either in the driver module 1 or in the LED module 5 and the information in the memory can be changed.
  • the driver module 1 may include a switching regulator, for example an AC-DC converter or DC-DC converter.
  • the driver module 1 can be connected to a supply voltage 8 (for example AC mains voltage).
  • the driver module 1 can be a PFC
  • the PFC can be formed for example by a boost converter, buck-boost converter, a flyback converter or by a Valley FiIl circuit.
  • the driver module 1 may have a potential separation. This isolation can be done for example via a transformer.
  • the driver module 1 may include, for example, a flyback converter, a forward converter or a half-bridge converter with transformer.
  • the driver module 1 has a PFC, it can be implemented as a so-called single-stage topology, for example by a flyback converter operating in the so-called borderline mode or else by a so-called two-stage topology, for example by a boost converter with a subsequent half-bridge topology. Converter with transformer, be executed.
  • the driver module 1 may have means for controlling the current through one or more LEDs of the LED module 5, the voltage across the LED of the LED module 5 or also the LED of the LED module 5 supplied power.
  • the detection of the current by one or more LEDs of the LED module 5 and / or the voltage across the LED of the LED module 5 can be done by means of resistors or by other sensor means such as a current orchroresüberwachungstransformators.
  • the operation of the LEDs can be such that an LED module 5 is controlled by at least one LED from a driver module .1, and a memory for storing information about the LED module 5 is present, with information stored in memory or can be changed.
  • the information in the memory can be changed based on a calibration measurement.
  • the information in the memory can be changed by a correction factor.
  • the memory may be arranged on the LED module 5, in a calibration device or on the driver module 1.
  • the calibrator can also be connected to the Be interface 7 connected control device, which sends the data of the memory to the driver module 1 at each start of the device for operating LEDs. In this case, it can be dispensed with that in each LED module 5 or each driver module 1, a memory must be present.
  • the data of the sensor 6 are read out and the determined data for this channel (or the driven LED) is stored.
  • the controlled channel (or the activated LED) is set back to the low intensity value and in the next step another channel (another LED) is driven to the maximum brightness (or to a predefined high brightness value).
  • the data of the sensor 6 are read out again and the determined data for the corresponding channel (or the driven LED) is stored. These steps are repeated until all channels (or LED) have been activated and their corresponding sensor data has been read out and stored.
  • the calibration measurement may be due to a signaling that a calibration measurement is to be performed (for example, by a signaling that a calibration measurement is to be performed (for example, by a signaling that a calibration measurement is to be performed (for example, by a signaling that a calibration measurement is to be performed (for example, by a signaling that a calibration measurement is to be performed (for example, by a signaling that a calibration measurement is to be performed (for example, by a
  • Age determination command it is also possible to initiate the calibration measurement on the basis of a sequence of a counter, for example as a function of the operating time of the LED module 5 or depending on a given date.
  • all the LEDs of an LED module 5 are set to a low intensity value.
  • This low intensity value may also be the off state, but it may also be a negligible intensity value.
  • At least one channel is driven to the maximum brightness (or to a predefined high brightness value). Now the data of the sensor 6 are read out and the determined data for this channel (or the driven LED) is stored.
  • the controlled channel or the activated LED
  • another channel is driven to the maximum brightness (or to a predefined high brightness value). Now the data of the sensor 6 are read out again and the determined data for the corresponding channel (or the driven LED) is stored.
  • an age determination of the LED of an LED module 5 can be performed by comparison with previously stored data.
  • the previously stored data may be data stored by the LED manufacturer (in memory) or also data from a previous calibration measurement.
  • the data obtained can also be determined by the existing
  • Interface 7 or by an optical or acoustic visualization are transmitted to the user.
  • an optical or acoustic visualization for example, flashing the LED of an LED module 5
  • a replacement required in the near future can be displayed optically.
  • the expected replacement or maintenance date can also be transmitted.
  • an LED module 5 is driven by at least one LED from a driver module 1, and a memory for storing information about the LED module 5 is present, wherein information is stored or modified in the memory can.
  • the information in the memory can be changed based on a calibration measurement.
  • the information in the memory can be changed by a correction factor.
  • the method for carrying out the calibration measurement can be carried out according to the steps described with reference to FIGS. 4 and 5.

Landscapes

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

Abstract

L'invention concerne un dispositif servant à faire fonctionner des DEL et comprenant un module pilote (1), ainsi qu'un module de DEL (5) qui est commandé par le module pilote (1) et qui comprend au moins une DEL. Le dispositif selon l'invention comprend également une mémoire qui sert au stockage d'informations sur le module de DEL (5), qui est contenue soit dans le module pilote (1) soit dans le module de DEL (5) et dont les informations peuvent être modifiées. Les informations dans la mémoire sont modifiables sur la base d'une mesure d'étalonnage.
PCT/AT2009/000368 2008-09-22 2009-09-22 Dispositif pour faire fonctionner des del WO2010031103A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2009801371237A CN102160462B (zh) 2008-09-22 2009-09-22 Led驱动装置
DE112009002327T DE112009002327A5 (de) 2008-09-22 2009-09-22 Vorrichtung zum Betreiben von LEDs
EP09741180.5A EP2335454B1 (fr) 2008-09-22 2009-09-22 Dispositif pour faire fonctionner des del

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATGM515/2008 2008-09-22
AT5152008 2008-09-22

Publications (2)

Publication Number Publication Date
WO2010031103A2 true WO2010031103A2 (fr) 2010-03-25
WO2010031103A3 WO2010031103A3 (fr) 2010-07-15

Family

ID=42039932

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2009/000368 WO2010031103A2 (fr) 2008-09-22 2009-09-22 Dispositif pour faire fonctionner des del

Country Status (4)

Country Link
EP (1) EP2335454B1 (fr)
CN (1) CN102160462B (fr)
DE (1) DE112009002327A5 (fr)
WO (1) WO2010031103A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2005929C2 (en) * 2010-12-28 2012-07-02 Eldolab Holding Bv Led driver, lighting device and led based lighting application.
DE102011103907A1 (de) * 2011-02-17 2012-08-23 Siteco Beleuchtungstechnik Gmbh LED-Leuchte
NL2009458C2 (en) * 2012-09-13 2014-03-18 Eldolab Holding Bv Led fixture and led lighting arrangement comprising such led fixture.
WO2017041123A1 (fr) * 2015-09-07 2017-03-16 Materials Center Leoben Forschung Gmbh Procédé et dispositif pour la surveillance d'un module semi-conducteur

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2409291A (en) * 2003-12-18 2005-06-22 Agilent Technologies Inc Control of light source using reference light source
US7161313B2 (en) * 1997-08-26 2007-01-09 Color Kinetics Incorporated Light emitting diode based products
WO2007148250A1 (fr) * 2006-06-20 2007-12-27 Koninklijke Philips Electronics N.V. SystÈme d'Éclairage comprenANT une pluralitÉ de sources de lumiÈre
EP1901587A2 (fr) * 2006-09-13 2008-03-19 Honeywell International, Inc. Système et procédé de compensation de luminosité de diodes DEL

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7161313B2 (en) * 1997-08-26 2007-01-09 Color Kinetics Incorporated Light emitting diode based products
GB2409291A (en) * 2003-12-18 2005-06-22 Agilent Technologies Inc Control of light source using reference light source
WO2007148250A1 (fr) * 2006-06-20 2007-12-27 Koninklijke Philips Electronics N.V. SystÈme d'Éclairage comprenANT une pluralitÉ de sources de lumiÈre
EP1901587A2 (fr) * 2006-09-13 2008-03-19 Honeywell International, Inc. Système et procédé de compensation de luminosité de diodes DEL

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2005929C2 (en) * 2010-12-28 2012-07-02 Eldolab Holding Bv Led driver, lighting device and led based lighting application.
WO2012091561A1 (fr) * 2010-12-28 2012-07-05 Eldolab Holding B.V. Dispositif de commande de diodes électroluminescentes, dispositif d'éclairage et application d'éclairage à base de diodes électroluminescentes
CN103392379A (zh) * 2010-12-28 2013-11-13 艾德拉博支持有限公司 Led驱动器、照明设备和基于led的照明应用
US9357594B2 (en) 2010-12-28 2016-05-31 Eldolab Holding B.V. LED driver, lighting device and LED based lighting application
US9578711B2 (en) 2010-12-28 2017-02-21 Eldolab Holding B.V. LED driver, lighting device and LED based lighting application
EP3544385A1 (fr) * 2010-12-28 2019-09-25 EldoLAB Holding B.V. Circuit d'attaque de del, dispositif d'éclairage, application d'éclairage à base de del et procédé de commande d'un circuit d'attaque de del
DE102011103907A1 (de) * 2011-02-17 2012-08-23 Siteco Beleuchtungstechnik Gmbh LED-Leuchte
WO2014038944A3 (fr) * 2012-09-10 2014-07-17 Eldolab Holding B.V. Appareil d'éclairage à diodes électroluminescentes et système d'éclairage à diodes électroluminescentes qui comprend un tel appareil d'éclairage à diodes électroluminescentes
US9629221B2 (en) 2012-09-10 2017-04-18 Eldolab Holding B.V. LED fixture and LED lighting arrangement comprising such LED fixture
US10237952B2 (en) 2012-09-10 2019-03-19 Eldolab Holding B.V. LED fixture and LED lighting arrangement comprising such LED fixture
NL2009458C2 (en) * 2012-09-13 2014-03-18 Eldolab Holding Bv Led fixture and led lighting arrangement comprising such led fixture.
WO2017041123A1 (fr) * 2015-09-07 2017-03-16 Materials Center Leoben Forschung Gmbh Procédé et dispositif pour la surveillance d'un module semi-conducteur

Also Published As

Publication number Publication date
CN102160462A (zh) 2011-08-17
EP2335454B1 (fr) 2013-09-04
WO2010031103A3 (fr) 2010-07-15
CN102160462B (zh) 2013-12-04
EP2335454A2 (fr) 2011-06-22
DE112009002327A5 (de) 2011-09-29

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