EP3666042B1 - Dispositif et procédé servant à limiter de manière dynamique la surcharge pour des systèmes à del multicanaux à température de couleur variable - Google Patents

Dispositif et procédé servant à limiter de manière dynamique la surcharge pour des systèmes à del multicanaux à température de couleur variable Download PDF

Info

Publication number
EP3666042B1
EP3666042B1 EP18768863.5A EP18768863A EP3666042B1 EP 3666042 B1 EP3666042 B1 EP 3666042B1 EP 18768863 A EP18768863 A EP 18768863A EP 3666042 B1 EP3666042 B1 EP 3666042B1
Authority
EP
European Patent Office
Prior art keywords
channel
led
output channels
led output
current
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
EP18768863.5A
Other languages
German (de)
English (en)
Other versions
EP3666042A1 (fr
Inventor
Christian Nesensohn
Sascha GSTIR
Clemens KUCERA
Frank Lochmann
Patrick MARTE
Markus Mayrhofer
Harald Netzer
Oliver Wynnyczenko
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
Original Assignee
Tridonic GmbH and 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 Tridonic GmbH and Co KG filed Critical Tridonic GmbH and Co KG
Publication of EP3666042A1 publication Critical patent/EP3666042A1/fr
Application granted granted Critical
Publication of EP3666042B1 publication Critical patent/EP3666042B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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]
    • H05B45/20—Controlling the colour of the light
    • H05B45/24—Controlling the colour 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]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective 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]
    • H05B45/10—Controlling the intensity of the light
    • H05B45/14—Controlling the intensity of the light using electrical feedback from LEDs or from LED modules

Definitions

  • the invention relates to a device and a method in the area of a preferably two-channel LED module, in which both channels can be controlled separately from one another in order to achieve color temperature dimming.
  • Previously known devices for two-channel color temperature dimming are mostly LED systems which usually have a group of cold white and a group of warm white LED elements on a common chip, i.e. are applied to a single substrate.
  • Such a device is, for example, in US2012038286 disclosed.
  • the device includes, among other things, a current driver that generates a first and a second driver current.
  • the first drive current causes a first group of LED chips to light up with a first color temperature and brightness (intensity).
  • the second drive current causes a second group of LED chips to light up with a second color temperature and second brightness.
  • the LED groups or elements of different colors can also be arranged mixed on the substrate.
  • said device and the method implemented by it involves separately controlling both drive currents, so that a user-desired light results with a selected color temperature at a selected intensity.
  • the driver circuit of this device has, among other things, a controller, a memory and, in addition to the current driver, also a data bus and a sensor interface, which has several CPUs, processors, gates, arrays, hardware logic and memory documents, such a device also has a Computer program product provided by which the method of color dimming is implemented.
  • the driver circuit of this device has circuitry configured to generate drive currents (first and second drive currents) capable of driving both the first and second groups of LEDs from their respective “off” states to to the state of their maximum intensity.
  • the driver circuit currently sets the levels of the first and second drive currents based on user input (via an interactive display, keyboard, rotary or slider control, etc.) and/or based on sensor-based feedback, which is why this circuit does not actually represent a controller, but a rule.
  • the resulting light emitted by the entire LED system is ultimately a combination of the color temperature and the intensity of the light at that color temperature.
  • the LED system is not only limited to two groups of LED chips, but can have any number of LED groups, each with its own individual color temperature and brightness behavior. A corresponding number of drive currents (depending on the encapsulation) is necessary, which must be made available by the driver circuit.
  • the controller In order to generate currents for different intensities and color temperatures of specific LED groups, the controller either accesses a memory stored drive current tables or calculates the required values for the respective drive currents using algebraic equations.
  • the mixed color temperature (T mix ) resulting from the superimposition of the light of two LED groups can be determined according to the following equation: where L K represents the intensity of the cold white light and L W that of the warm white light, and T K and T W represent the respective color temperatures that may be measured by sensors.
  • the difference in color temperature between the two groups of LED chips should advantageously be at least 300 Kelvin.
  • the values of the two drive currents (I K and I W ) for the two groups of LED chips (cold white and warm white) also result algebraically with W as an efficacy constant (units in lumens per ampere) of the warm white group of LED chips and K as an efficacy constant of the cool white group of LED chips with a total light output L and an average color temperature (overall color temperature) T.
  • the above equations enable the controller to calculate all drive currents in order to achieve a desired (physically possible) color temperature with an equally desired brightness (intensity) and to feed the resulting parameters to the drive current table (color temperature, two intensity levels) in order to complete them.
  • the drive current tables stored in the memory during device manufacture are accessible to the controller or the corresponding modules of the driver circuit via the data bus.
  • the drive current tables are stored by the processor by acquiring information from another device, e.g., over a network connection.
  • the drive currents are set to constant currents at predetermined voltage levels.
  • current amplitudes of the drive currents are defined by (activating), which are pulsed at a selectable pulse rate.
  • the corresponding drivers receive drive current parameters (e.g. from the controller or regulator) and use them to generate the corresponding drive currents.
  • Device indicators which measure the color temperature and intensity of the light currently being emitted by the light source, provide feedback for the driver circuitry and are part of the basis for the overall control.
  • the change in the intensity and/or the color temperature of the light emitted by a light source is generally referred to as "dimming".
  • dimming with, for example, only two LED groups with different color temperatures (e.g. cold white and warm white) and intensity is very complex.
  • the luminous flux of a white LED (measured in lumens, Im) is proportional to its drive current, with the constant of proportionality being dependent on color temperature, all other factors being assumed being equal.
  • an LED configured as a 6000K cool-white source produces light at a rate of 100 lumens per amp, while a 3000K warm-white source produces light at only a 70 lumen rate generated per ampere. This inequality must be taken into account when dimming (especially when calculating the drive currents).
  • the dimmer can thus reduce the AC power to produce an AC voltage that results in a reduced (second) drive current.
  • analog dimming is an advantage, since several PWM dimming signals generate so-called beat frequencies, i.e. they can cause beats that cause flickering or audible noise.
  • Analog dimming can be easily implemented with a buck converter.
  • a suitable integrated circuit IC
  • Jon Kraft Convert a Buck Regulator into a Smart LED Driver, Including Dimming; www.analog.com/en/analog-dialogue/articles/convert-a-buck-regulator.html
  • a data sheet from Texas Instruments proposes dimming with the TPS92075 integrated circuit.
  • a buck converter is a form of switching DC-DC converter and is used to transfer electrical energy between an input and an output side of galvanically isolated DC voltages.
  • the output voltage U a is always smaller than the absolute value of the input voltage U e .
  • FIG 1 a simple variant of a buck converter 1 is shown.
  • a switch 2 is regularly switched on and off by a controller (not shown). A few hundred to several million switching cycles per second usually take place, which is why this switch 2 usually represents a transistor.
  • Both the coil 4 (choke) and the electrolytic capacitor 6 (ELKO) serve as energy stores and allow the load 7 to be supplied in the phases in which the switch 2 is open.
  • the load current flows through the coil 4 and through the consumer 7, here an LED.
  • the diode 3 blocks.
  • the energy stored in the coil is dissipated: the current continues to flow through the load 7 (LED) and through the resistor 5, but now out of the capacitor 6 through the diode 3.
  • the switching cycle of the switch 2 can either be set in such a way that the coil current never stops flowing (non-intermittent operation) since the switch 2 is already closed again before the entire energy stored in the coil 4 has been completely dissipated.
  • the switching cycle can also be set in such a way that the current regularly drops to zero during the cycle and there are intervals with no current or no voltage (intermittent operation).
  • a controller In order to be able to precisely control both operating modes or their transition from both sides, a controller must be used when designing the circuit, through which all, at least the most important, sometimes rapidly changing parameters (inductance, switching frequency, input voltage, output voltage, flowing output current, dependency of the output voltage on the duty cycle, etc.) can be taken into account.
  • the present invention now relates to multi-channel LED modules, in particular to two-channel LED modules, which preferably have a cold white and a warm white channel, and which can be controlled separately from one another in such a way that color dimming can be achieved with simultaneous brightness dimming .
  • a high-precision control of the respective LED current is necessary, with the main difficulty being not to exceed the maximum power that an individual channel can or may produce during the dimming process, otherwise in current systems, the LED module is switched off completely before an overload occurs (system shut down).
  • Another prior art method of protecting a multi-channel dimmable system from electronic overload/overload is to place a significant power limit on each channel.
  • the pamphlet DE 10 2013 108552 A1 discloses a multi-channel LED system according to the preamble of independent claim 1.
  • the invention is therefore based on the object of providing safety measures for a color temperature and brightness dimmable two- or multi-channel system be made so that the maximum exhaustion of the color temperature and brightness range caused by dimming does not pose a risk to the technical safety of the system.
  • the basic idea of the present invention is to create a dynamic overload limitation in color temperature and/or brightness dimmable two- or multi-channel LED systems, which protects the system from exceeding the power in individual channels or in all channels and a possibly damage or even destruction to the environment is prevented.
  • a “dimmer” in the most general sense is used to control the (variable) power consumption of (electrically operated) consumers.
  • the type of dimming depends on the type of consumer or its load characteristics.
  • variable/the variable to be changed depends on several parameters that may interact in a complex manner, control may not be sufficient for the dimming process, but regulation is necessary.
  • the user has two interfaces (button with display, rotary knob, slider, etc.): one for setting the color temperature and one for setting the brightness at this selected color temperature.
  • the system has a suitable sensor system (e.g. brightness sensors, color temperature sensors, etc.) which registers any changes in the lighting conditions in the environment and allows the system to dim according to its configuration.
  • a suitable sensor system e.g. brightness sensors, color temperature sensors, etc.
  • any dimming according to the above explanations is technically not feasible because - for safety reasons - the maximum power of each channel, but also the total power of all channels of the entire system, must not be exceeded.
  • the invention now consists, inter alia, in implementing a current limitation for the second non-master channel (or for further non-master channels).
  • a two-channel system is considered below without loss of generality.
  • the "master channel” can be run with a power P_K1 in a range between minimum and maximum power, with its maximum power corresponding to the maximum power P_System of the overall system.
  • P_ K2 P _ system ⁇ P _ K 1
  • dimming ⁇ value P _ K 2 u _ K 2 ⁇ chosen electricity
  • the maximum current is thus limited to I max in order not to exceed the nominal power of the system.
  • One measure that prevents this is the inventive recalibration of the current value for the first channel (the master channel) after limiting the current value for the second channel, so that although the overall brightness of the system is reduced, the desired color coordinates of the mixed light are maintained .
  • the voltage across the second channel U_K2 (the voltage across the second LED line) is measured (in a 2-channel system) in the device (system). This measurement results in the permissible maximum current through the second channel I max , which in turn can be expressed as a dimming value.
  • the power of the first channel P_K1 must be recorded - the maximum permissible total power P_System is known - as well as the voltage across the second channel U_K2 in order to determine the information about the maximum permissible current I max in the second channel depending on this.
  • any Nth channel can be used as the master channel.
  • a measuring and control circuit for the LED current and the voltage for two LED lines contains, as well as the control circuit, which carries out an internal maximum power limitation and, depending on this, outputs a control variable that determines the LED power, in particular the clocking of a switch of a clocked LED converter, is in figure 2 shown.
  • FIG. 2 shows a dimmable 2-channel LED system.
  • the preferably software-based part (e.g. microcontroller) 8 of the system is shown, on the right side the part preferably implemented in hardware in the form of 2 LED drivers 9A, 9B for two LED lines each, for example with a cold white diode 16A in channel 1 and a warm white diode 16B in channel 2, and both driven by a converter 13A, 13B, preferably by a buck converter as in figure 1 is shown.
  • Each LED driver unit 9A, 9B also contains two resistance paths arranged parallel to one another, on which in turn the actual values of the LED-side voltage U_K1, U_K2 and/or the current LED-side current I_K1, I-K2 are measured and the measurement results 17A, 17B, 18A, 18B are supplied to a control unit 11, for example in the software part 8.
  • the control unit 11 is also supplied with the desired values 19A, 19B with regard to color temperature and brightness of both channels, e.g. However, as already mentioned, the values can be automatically recorded by an external (measuring) sensor system and also automatically forwarded to the control unit 11 .
  • the control unit 11 thus receives desired values for the mixed color of the overall LED system 21 and its brightness, as well as the actual values of currents and voltages of the respective LED sections 16A, 16B (channels). Due to the necessary limitation of the voltages or currents in the LEDs - in other words the unavoidable power limitation of each LED line 16A, 16B involved in the overall system 21 - it is not always possible to use the signals supplied by the interface 10, e.g. those desired or required by the user. to realize color-brightness pairs required by the sensor system. However, the present invention makes it possible to come as close as possible to these target values, either in terms of the color temperature or in terms of its intensity or, if necessary, by means of a compromise in the form of an acceptable intermediate value.
  • control unit 11 calculates possible setpoint values 20A, 20B from the actual values 17A, 17B, 18A, 18B and the desired setpoint values 19A, 19B, which best correspond to the preferences of the user and/or the specifications of the sensors.

Landscapes

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

Claims (4)

  1. Système à DEL multicanal à température de couleur variable, comportant :
    - une unité de commande (8),(9A),(9B), qui est configurée pour alimenter au moins deux canaux de sortie de DEL (16A),(16B) respectivement en un courant (I_K1),(I_K2) réglé sur une valeur théorique,
    l'unité de commande (8),(9A),(9B) étant en outre configurée pour limiter la puissance maximale de chaque canal de sortie de DEL des au moins deux canaux de sortie de DEL (16A),(16B) d'une part et la puissance cumulée de tous les canaux de sortie de DEL des aux moins deux canaux de sortie de DEL (16A),(16B) d'autre part à des valeurs spécifiées et
    l'unité de commande (8),(9A),(9B) est réalisée pour réduire la valeur théorique d'un quelconque canal de sortie de DEL (16B) des au moins deux canaux de sortie de DEL (16A, 16B), quand sa puissance actuelle (P_K2) est supérieure à une puissance cumulée admissible maximale (P_System) des au moins deux canaux de sortie de DEL (16A, 16B) moins une puissance actuelle (P_K1) d'autres canaux de sortie de DEL des au moins deux canaux de sortie de DEL (16A, 16B),
    caractérisé en ce qu'une variation d'une coordonnée de couleur du système, produite par une modification de la valeur théorique du quelconque canal de sortie de DEL (16B) est compensée par un nouvel étalonnage, en ce que l'unité de commande (8),(9A),(9B) est réalisée pour réduire la valeur théorique d'un canal de sortie maître (16A) choisi parmi les au moins deux canaux de sortie de DEL (16A, 16B) de sorte que, en cas de luminosité réduite du système, une coordonnée de couleur souhaitée d'une lumière mixte soit maintenue, dans lequel le canal de sortie maître (16A) est réalisé pour être actionné jusqu'à 50 W, sans que le système ne soit éteint.
  2. Système à DEL multicanal selon la revendication 1, caractérisé en ce que les au moins deux canaux de sortie de DEL (16A),(16B) sont deux canaux de sortie de lumière blanche.
  3. Système à DEL multicanal selon la revendication 1 ou 2, caractérisé en ce que les au moins deux canaux de sortie de DEL (16A),(16B) sont un canal de sortie de lumière blanche chaude et un canal de sortie de lumière blanche froide.
  4. Procédé servant à limiter de manière dynamique la surcharge pour des systèmes à DEL multicanaux à température de couleur variable, comprenant les étapes suivantes :
    - mesure de valeurs réelles respectives d'un courant (17A, 17B) et d'une tension (18A, 18B) appliqué(e) à au moins deux canaux de sortie de DEL (16A, 16B), d'une température de couleur et d'une luminosité définies au moyen de canaux matériels de pilote (9A),(9B) associés respectivement aux canaux de sortie de DEL (16A),(16B), dans lequel en fonction du canal matériel de pilote (9A), (9B) la valeur réelle de courant respective (17A, 17B) est mesurée au niveau d'un régulateur de courant (12A, 12B) appartenant au canal matériel de pilote (9A), (9B) ;
    - alimentation de ces valeurs réelles (17A, 17B, 18A, 18B) à une unité de contrôle (11) dans une partie logicielle (8) d'une unité de commande (8),(9A),(9B) ;
    - calcul de valeurs théoriques possibles (20A, 20B) pour la température de couleur et la luminosité d'un système entier (21) à partir de valeurs théoriques (19A, 19B) livrées par une interface (10) et des valeurs réelles (18A, 18B] de la mesure de tension, ainsi que des valeurs réelles (17A, 17B) de la mesure de courant par l'unité de contrôle (11) ;
    - alimentation des valeurs théoriques possibles (20A, 20B) au régulateur de courant respectif (12A, 12B) et
    - configuration d'un convertisseur abaisseur (13A, 13B) appartenant à chaque canal matériel de pilote (9A,9B) par le régulateur de courant respectif (12A, 12B) sur la base des valeurs réelles (17A, 17B) de la mesure de courant ainsi que des valeurs théoriques possibles (20A, 20B) et ce jusqu'à ce qu'une valeur théorique possible (20B) d'un canal de sortie de DL quelconque (16B) des au moins deux canaux de sortie de DEL (16A, 16B) soit réduite, lorsque sa puissance actuelle (P_K2) est supérieure à une puissance cumulée admissible maximale (P_System) des au moins deux canaux de sortie de DEL (16A, 16B) moins une puissance actuelle (P_K1) d'autres canaux de sortie de DEL (16A) des au moins deux canaux de sortie de DEL (16A, 16B), caractérisé en ce qu'une variation d'une coordonnée de couleur du système, produite par une modification de la valeur théorique, est compensée par un nouvel étalonnage, en ce que l'unité de commande (8),(9A),(9B) réduit la valeur théorique d'un canal de sortie maître (16A) choisi parmi les au moins deux canaux de sortie de DEL (16A, 16B) de sorte que, en cas de luminosité réduite du système, une coordonnée de couleur souhaitée d'une lumière mixte soit maintenue, dans lequel le canal de sortie maître (16A) est réalisé pour être actionné jusqu'à 50 W, sans que le système ne soit éteint.
EP18768863.5A 2017-09-25 2018-09-10 Dispositif et procédé servant à limiter de manière dynamique la surcharge pour des systèmes à del multicanaux à température de couleur variable Active EP3666042B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017216902.8A DE102017216902A1 (de) 2017-09-25 2017-09-25 Vorrichtung und Verfahren zur dynamischen Überlastbegrenzung bei farbtemperaturdimmbaren Mehrkanal-LED-Systemen
PCT/EP2018/074325 WO2019057535A1 (fr) 2017-09-25 2018-09-10 Dispositif et procédé servant à limiter de manière dynamique la surcharge pour des systèmes à del multicanaux à température de couleur variable

Publications (2)

Publication Number Publication Date
EP3666042A1 EP3666042A1 (fr) 2020-06-17
EP3666042B1 true EP3666042B1 (fr) 2022-07-20

Family

ID=63556336

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18768863.5A Active EP3666042B1 (fr) 2017-09-25 2018-09-10 Dispositif et procédé servant à limiter de manière dynamique la surcharge pour des systèmes à del multicanaux à température de couleur variable

Country Status (4)

Country Link
EP (1) EP3666042B1 (fr)
AT (1) AT17901U1 (fr)
DE (1) DE102017216902A1 (fr)
WO (1) WO2019057535A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019118341B3 (de) * 2019-07-08 2020-07-09 Insta Gmbh Linearlichteinheit, Lichtquellenmodul für eine solche Linearlichteinheit sowie Verfahren zum Betreiben einer solchen Linearlichteinheit

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8177389B1 (en) * 2007-09-13 2012-05-15 Cypress Semiconductor Corporation Deterministically calculating dimming values for four or more light sources
US20100244711A1 (en) * 2009-03-30 2010-09-30 Richard Landry Gray Self-Calibrating White Light Emitting Diode Module
TWI419615B (zh) * 2009-08-31 2013-12-11 Young Lighting Technology Corp 照明系統及其照明控制方法
US8436549B2 (en) 2010-08-13 2013-05-07 Bridgelux, Inc. Drive circuit for a color temperature tunable LED light source
US9521721B2 (en) * 2011-09-23 2016-12-13 Martin Professional A/S Method of controling illumination device based on current-voltage model
DE102013108552B4 (de) * 2013-08-08 2016-07-21 Insta Elektro Gmbh Steuerverfahren für eine Mischlichtquelle sowie Steuervorrichtung für eine Mischlichtquelle
CN104125692A (zh) * 2014-08-11 2014-10-29 矽力杰半导体技术(杭州)有限公司 多路led恒流控制器及控制方法
EP3016478B1 (fr) * 2014-10-29 2018-10-03 Helvar Oy Ab Commande combinée de la puissance de sortie dans un pilote de DEL multicanal
US9826581B2 (en) * 2014-12-05 2017-11-21 Cree, Inc. Voltage configurable solid state lighting apparatuses, systems, and related methods

Also Published As

Publication number Publication date
DE102017216902A1 (de) 2019-03-28
EP3666042A1 (fr) 2020-06-17
AT17901U1 (de) 2023-07-15
WO2019057535A1 (fr) 2019-03-28

Similar Documents

Publication Publication Date Title
DE102011087387B4 (de) Mehrkanal led-treiber
DE10013215B4 (de) Ansteuerschaltung für Leuchtdioden
DE102006037342B4 (de) Schaltung für ein Kraftfahrzeug, insbesondere zur Ansteuerung einer Beleuchtungseinrichtung
DE102010008275B4 (de) Vorrichtung zur Energieversorgung von mehreren LED-Einheiten
EP2499883B1 (fr) Dispositif d'éclairage à del et procédé permettant de faire fonctionner un dispositif d'éclairage à del
DE102014117578B4 (de) Vorsteuerungsschaltung für schnelles Analogdimmen in LED-Treibern
DE102013207245B4 (de) Ansteuerung von Halbleiterleuchtelementen sowie Lampe, Leuchte oder Leuchtsystem mit einer solchen Ansteuerung
EP3973745B1 (fr) Procédé et dispositifs pour réguler la tension de sortie d'un régulateur de tension
DE102018126249B4 (de) Verfahren zum ansteuern mehrerer lichtemitierender dioden und ansteuerschaltung
DE102013113053A1 (de) Treiberschaltung mit einer Halbleiterlichtquelle sowie Verfahren zum Betrieb einer Treiberschaltung
DE102016123776A1 (de) Lichtemissionsvorrichtung und Leuchte
DE102014019434B4 (de) Schaltung mit einem Mikrocontroller zum Betrieb von LEDs und zur Berechnung der LED Junction Temperatur
EP3666042B1 (fr) Dispositif et procédé servant à limiter de manière dynamique la surcharge pour des systèmes à del multicanaux à température de couleur variable
AT16692U1 (de) LED-Modul mit veränderbarem Farbort und Beleuchtungsgerät mit einem solchen LED-Modul
DE202013004095U1 (de) LED-Beleuchtungssystem
WO2014177535A1 (fr) Procédé de modification de la localisation chromatique de la lumière visible émise par un module de del
WO2021008732A1 (fr) Circuit d'attaque pour sources lumineuses, appareil de mesure optique doté d'un circuit d'attaque pour sources lumineuses, dispositif pour vérifier des documents de valeur et procédé pour faire fonctionner une charge de sources lumineuses au moyen du circuit d'attaque pour sources lumineuses
DE102019118341B3 (de) Linearlichteinheit, Lichtquellenmodul für eine solche Linearlichteinheit sowie Verfahren zum Betreiben einer solchen Linearlichteinheit
DE102015121417A1 (de) Adaptiver DC-DC-Leuchtdiodentreiber für dynamische Lasten
EP3662570B1 (fr) Convertisseur à découpage à régulation de courant et procédé
DE10066459B4 (de) Ansteuerschaltung für Leuchtdioden
DE102007047725A1 (de) Direkte Stromlieferung mit einem induktiven Abwärts- oder Aufwärtswandler zur Anwendung auf LED-Treiber
DE102014206434A1 (de) Ansteuerung von Halbleiterleuchtelementen
AT16711U1 (de) Mehrkanal-LED-Konverter und Verfahren zu dessen Betreiben
WO2024110435A1 (fr) Dispositif d'éclairage à del

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20200310

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20210507

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 502018010201

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: H05B0033080000

Ipc: H05B0045240000

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: H05B 45/50 20200101ALI20220323BHEP

Ipc: H05B 45/24 20200101AFI20220323BHEP

INTG Intention to grant announced

Effective date: 20220412

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502018010201

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1506417

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220815

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20220720

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220720

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220720

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221121

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221020

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220720

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220720

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220720

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220720

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220720

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220720

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221120

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220720

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20221021

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502018010201

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220720

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220720

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220720

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220720

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220720

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20220930

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220720

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220720

26N No opposition filed

Effective date: 20230421

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220720

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220910

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230530

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 502018010201

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220930

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220910

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220720

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220720

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220720

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220720

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20180910

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220720

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220720

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240926

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20240924

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20240925

Year of fee payment: 7