EP2408273A1 - Procédé et dispositif destinés à atténuer un moyen d'éclairage à l'aide d'un microcontrôleur - Google Patents

Procédé et dispositif destinés à atténuer un moyen d'éclairage à l'aide d'un microcontrôleur Download PDF

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Publication number
EP2408273A1
EP2408273A1 EP11174209A EP11174209A EP2408273A1 EP 2408273 A1 EP2408273 A1 EP 2408273A1 EP 11174209 A EP11174209 A EP 11174209A EP 11174209 A EP11174209 A EP 11174209A EP 2408273 A1 EP2408273 A1 EP 2408273A1
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EP
European Patent Office
Prior art keywords
dimming
input signal
duty cycle
change
voltage threshold
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.)
Ceased
Application number
EP11174209A
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German (de)
English (en)
Inventor
Markus Cernek
Peter Braunschmid
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.)
Vossloh Schwabe Deutschland GmbH
Vossloh Schwabe GmbH
Original Assignee
Vossloh Schwabe Deutschland GmbH
Vossloh Schwabe GmbH
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 Vossloh Schwabe Deutschland GmbH, Vossloh Schwabe GmbH filed Critical Vossloh Schwabe Deutschland GmbH
Publication of EP2408273A1 publication Critical patent/EP2408273A1/fr
Ceased 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
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations

Definitions

  • the present invention relates to a method and a device for dimming a luminous means, for example a gas discharge lamp or a light-emitting diode (LED).
  • a luminous means for example a gas discharge lamp or a light-emitting diode (LED).
  • LED light-emitting diode
  • Today dimmable ballasts and transformers are known, which allow dimming of light emitting diodes or gas discharge lamp.
  • the desired dimming level can be specified, for example, digitally (eg DALI standard) or analog (eg 1-10 V interface).
  • DE 60122038 T2 describes a device in which a DC voltage signal is pulse width modulated between 0 and 10 V and then via an optocoupler is transmitted. The secondary-side pulse width modulated signal is finally transmitted via an RC filter to a power factor correction device or an inverter which controls the connected lamp.
  • an unspecified dimming control is arranged on the primary side in front of the optocoupler, which generates a frequency control signal for a device for power factor correction or for an inverter.
  • the invention solves this problem with a method according to claim 1 and a device according to claim 12.
  • the DC dimming input signal is applied to a preferably programmable control unit.
  • the control unit is assigned a non-volatile memory. At least one dimming characteristic is stored in this memory.
  • the memory has a plurality of different dimming characteristics, one of the dimming characteristics being selected for dimming the lamp. To select the desired dimming characteristic, a corresponding Control element can be used.
  • a pulse-width-modulated dimming output signal is determined in the control unit. If the voltage value of the dimming input signal is at most as large as a first voltage threshold value, the control unit generates the dimming output signal with a fixed first duty cycle.
  • the control unit If the voltage value of the dimming input signal is at least as large as a second voltage threshold value, then the control unit generates the output signal with a fixed second duty cycle, which is preferably smaller than the first duty cycle. If the dimming input signal has a voltage value that lies between the first voltage threshold value and the second voltage threshold value, then the dimming output signal formed has a variable duty cycle, which depends on the voltage value of the dimming input signal and on the preset or selected dimming characteristic.
  • the first voltage value and / or the second voltage value may be variable, for example, depending on a parameter.
  • an operating state such as the temperature of the lamp is considered as a parameter.
  • the operating state and in particular the temperature can be determined based on a characterizing size such as the lamp current or the operating time since switching on or measured by a temperature sensor.
  • the measured characterizing quantity can be transmitted to the control unit via a galvanic isolating device, eg optocoupler.
  • the value of the first duty cycle is predefined depending on the first voltage value and / or the value of the second duty cycle depends on second voltage value fixed.
  • the control unit thus converts the received dimming input signal directly into a digital, pulse width modulated dimming output signal, which is then transmitted to a galvanic separation device.
  • the received dimming input signal is processed, with disturbances of the DC signal are at least partially eliminated.
  • the pulse width modulated dimming output signal then has a fixed, fixed duty cycle when the voltage value of the system input signal is at most equal to the first voltage threshold or at least the second voltage threshold. DC voltage fluctuations below the first voltage threshold value and above the second voltage threshold value therefore have no effect on the duty cycle of the dimming output signal.
  • a variable duty cycle is generated based on the dimming characteristic only when the dimming input signal has a DC voltage value between the first and second voltage thresholds.
  • an anolog-digital conversion is therefore performed on the primary side.
  • the pulse width modulation carried out depends on the region in which the DC dimming input signal is located in relation to the predefined voltage threshold values.
  • the duty cycle in the range between the first duty cycle and the second duty cycle of the dimming output signal is only changed if the change of the dimming input signal fulfills a change criterion.
  • the change criterion can be met, for example, if the change of the dimming input signal is greater than a minimum change amount. Voltage fluctuations below the minimum change amount are disregarded in determining the duty cycle of the pulse width modulated dimming output signal. Too frequent changes in brightness or flickering of the lamp can be very easily prevented in this way.
  • the change criterion may be satisfied if the rate of change of the dimming input signal is less than a predetermined rate of change threshold.
  • the change in the desired dimming level given by an operator via a dimmer does not exceed certain rates of change. For changes that are above a rate of change threshold, therefore, it can be concluded that undesired influences and disturbances of the dimming input signal. Such signal changes do not result in this way to a change in the duty cycle and therefore not to a change in the dimming level of the lamp.
  • the change criterion may also be satisfied if the change in the dimming input signal within a predetermined time window does not again assume the output value that the voltage value of the dimming input signal had at the beginning of the change of the dimming input signal. Short-term DC voltage changes of the dimming input signal, which disappear again within the specified time window, leave the current duty cycle unchanged.
  • the change criteria can be used individually or in any combination. Other change criteria may also be added. In this way, can easily be done in the programmable control unit a suppression of the DC signal.
  • the rate of change of the duty cycle of the dimming output signal is limited to a maximum value.
  • the duty cycle will not change faster even if there is a faster change in the dimming input signal.
  • brightness changes requested by a changed duty cycle can be limited to a maximum rate of change. It is also possible to set the rate of change of the duty cycle fixed or parameter-dependent.
  • the pulse width modulated dimming output signal is applied to the primary side of the galvanic isolator and causes on the secondary side of the galvanic isolator a dimming control signal which is used to control the lamp current in the lamp control circuit.
  • the control unit is completely galvanically isolated from the lamp control circuit.
  • the dimming control signal can also be forwarded as an inverted signal to the lamp circuit. An inversion can take place, for example, during the transmission through the galvanic separation device, if, for example, an opto-coupler with an inverting transistor is used.
  • the lamp current set by the lamp control circuit for the operation of the connected lamp can be controlled by a Current measuring device detected and returned to the lamp control circuit. In this way, a current control can be realized.
  • other measured values such as the lamp voltage, the power of the lamp, the brightness of the lamp or the like can be measured and transmitted to the lamp control circuit for control.
  • a measuring device can be present, which detects a characterizing the brightness of the lamp size.
  • the dimming characteristic may be predetermined depending on the characteristic of the measuring device, so that, for example, non-linearities of the measuring device, which could lead to a deviation of the brightness of the lamp from the desired dimming level, are already taken into account on the primary side outside the lamp control circuit. This simplifies the control or regulation in the lamp control circuit.
  • FIG. 1 shows a block diagram of a device 10 for dimming a lamp 11.
  • the lamp 11 may be formed for example by a gas discharge lamp, halogen lamp or a light emitting diode (LED). If the lamp 11 is a halogen lamp, it may be preceded by a transformer.
  • the lamp 11 is connected to a lamp control circuit 12.
  • the lamp control circuit 12 controls or regulates the lamp voltage UL and / or the lamp current IL.
  • a current measuring device 13 detects the lamp current IL and transmits a corresponding current measurement signal to the lamp control circuit 12. This allows the lamp control circuit 12 to regulate the lamp current IL.
  • To the lamp control circuit 12 instead of a single lamp 11 and a plurality of lamps 11 may be connected.
  • the device 10 has a programmable control unit 17, which is formed for example by a microcontroller.
  • the control unit 17 has a DC input 18 with two input terminals, to which a dimming input signal UD is applied in the form of a DC voltage.
  • the values of the DC voltage may vary, for example, in the range of about 0 V to 11 V.
  • the control unit 17 is connected to a non-volatile memory 19, in which at least one and preferably a plurality of different dimming characteristics KL are stored.
  • one of the dimming characteristics KL is selected and used to generate a digital dimming output signal AS at an output 20 of the control unit 17.
  • the desired dimming characteristic KL can be selected via an operating element 21.
  • the operating element 21 can modify a currently used, selected characteristic curve KL in order, for example, to better adapt a stored characteristic to the current application.
  • the operating element 21 can also be set up to specify parameters of the analog-to-digital conversion and / or to change, for example, the period for the pulse width modulated dimming output DS. Modified or adapted characteristic curves and / or parameters can also be stored in the memory 19 via the operating element 21 and the control unit 17 in a modified exemplary embodiment.
  • a supply unit 22 For supplying electrical energy to the control unit 17, a supply unit 22 is provided.
  • the supply unit 22 may be formed, for example, by a capacitor power supply, a transformer or a switched-mode power supply. It is also possible to realize the supply unit 22 by a base-isolated (1.5 kV) coupling winding. In principle, other insulation classes can be realized.
  • the device 10 may be configured such that when the lamp 11 is switched off, no voltage is present at the output of the supply unit 22.
  • the control unit 17 it is also possible for the control unit 17 to be permanently supplied with electrical energy, regardless of whether the lamp 11 is switched on or off.
  • the switched-off state of the lamp 11 can be transmitted to the lamp control circuit 12 in this case via a separate control line 23, as in FIG. 1 is shown in dashed lines.
  • the dimming output signal AS is transmitted directly from the output 20 of the control unit 17 to a first galvanic separation device 24.
  • the first galvanic separation device is designed as an optocoupler.
  • another insulating component such. B. a transformer can be used.
  • the dimming output signal AS applied to the primary side 25 of the first separating device 24 is transmitted to the secondary side 26 of the first separating device 24 and is present there as a dimming control signal DS.
  • the dimming control signal DS is then supplied on the secondary side 26 to a digital-to-analog converter 27, which converts the digital dimming control signal DS into an analog lamp control signal LS, which is transmitted to the lamp control circuit 12.
  • the lamp control signal LS indicates the desired brightness of the lamp 11.
  • the lamp current IL is set as specified by the lamp control signal LS so that the desired brightness of the lamp 11 is achieved.
  • an inversion of the dimming output signal AS or the dimming control signal DS can also take place.
  • An inversion can also take place, for example, during the transmission through the galvanic isolating device, if, for example, an opto-coupler with an inverting transistor is used.
  • lamp control circuits that can more easily process a previously inverted signal to set the desired brightness.
  • the device 10 may have a separate control line 23 which transmits a signal to the lamp circuit 12 when the lamp 11 is to be completely switched off.
  • a second galvanic separation device 27 may be used to obtain a complete electrical isolation between primary side 25 and secondary side 26.
  • the second separator 27 may be designed as an optocoupler, transformer or the like.
  • the pulse width modulated dimming output signal AS is generated with the aid of the currently selected characteristic curve KL.
  • the duty cycle G of the dimming output signal AS is varied depending on the DC voltage value of the dimming input signal UD.
  • the dimming output signal AS has a constant first duty cycle G1. Voltage fluctuations and voltage changes do not lead to a change in the duty cycle G of the dimming output signal AS in this area.
  • the output signal AS has a constant second duty cycle G2.
  • the second duty G2 is smaller than the first duty G1.
  • the second duty cycle G2 is a minimum and the first duty cycle G1 is a maximum for the duty cycle G.
  • the duty cycle G is defined by the time duration t H , during which the dimming output signal AS within a period T takes its maximum value H, divided by the period duration T.
  • the duty cycle G is a measure of the desired brightness of the lamp 11.
  • the first duty cycle G1 corresponds to the minimum brightness of the lamp 11.
  • the second duty cycle G2 corresponds to the maximum brightness of the lamp 11th
  • the dimming input signal is a control signal according to the usual 1-10V standard.
  • Each input voltage between 0 and 1V corresponds to the minimum dimming level, which is realized by a lower voltage threshold U1 of 1V.
  • the first voltage threshold U1 may be variable, for example parameter-dependent.
  • an operating state of the lamp 11 such as its temperature is preferably used.
  • the temperature is preferably detected by a temperature sensor.
  • the first duty G1 is thus reduced to ensure ignition of the cold lamp 11 and to avoid extinction until the lamp 11 has a sufficiently high operating temperature.
  • the first voltage threshold is reduced again and the first duty cycle is correspondingly increased.
  • the value of the first duty cycle G1, G1 * is dependent on the predetermined first voltage threshold value U1, U1 *. According to the example, only two different first voltage threshold values U1, U1 * and in each case one assigned first duty cycle G1, G1 * are predetermined. The one pair of values U1 *, G1 * is used for the lamp 11 below the normal operating temperature and the other pair of values for the lamp 11 with normal operating temperature, which the lamp 11 usually has during normal operation.
  • the second voltage threshold value can be reduced to a value U2 * ⁇ U2, so that the lamp 11 is not operated at full brightness, but at least somewhat dimmed, at this excessively high operating temperature in order to avoid further heat loading.
  • the reduced second voltage threshold U2 *, a second duty cycle G2 * is permanently assigned, which is smaller than the second duty cycle used in the normal operation of the lamp 11 G2.
  • the value pair U2 *, G2 * is used for the lamp 11 above the normal operating temperature. It may be sufficient to have only two different second voltage threshold values U2, U2 * and one assigned to each second duty cycle G2, G2 * pretend.
  • the duty cycle G of the dimming output signal AS is variable and is determined depending on the DC voltage value of the dimming input signal UD and the selected dimming characteristic KL.
  • the dimming characteristic KL can have any desired course. As already mentioned, a plurality of dimming characteristics KL are preferably stored in the memory 19, so that the respectively suitable dimming characteristic KL can be used. In FIG. 2 For example, a first dimming characteristic KL1 with a linear course and a second dimming characteristic KL2 with a non-linear course are shown.
  • the dimming characteristic KL may, for example, also have a logarithmic course.
  • At least one of the stored characteristic curves takes into account the characteristics of one or more components used outside the control unit 17.
  • component-specific parameters of the lamp control circuit 12 can be taken into account.
  • a current measuring device 13 is provided, which may be realized for example by means of a current sink transformer or a shunt resistor.
  • the current-voltage characteristic of the current measuring device 13 can be taken into account in the specification of the dimming characteristic KL, so that component-related measurement errors are already compensated on the primary side by the dimming characteristic KL at least partially.
  • the device 10 may also have a device for automatic lamp type detection. With automatic lamp type recognition, the recognition device can select the dimming characteristic.
  • control signals of a so-called push interface and / or a DALI control signal can also be applied to the DC input 18 of the control unit 17 and converted into a corresponding pulse-width-modulated dimming output signal AS. In this way it is possible to use the device 10 for different dimming standards.
  • a change in the DC value of the dimming input signal UD then leads to a change in the duty cycle G of the dimming output signal AS when a predetermined change criterion is met.
  • a minimum change amount MIN is given in the preferred embodiment. Only when the change in the DC voltage value exceeds the minimum change amount MIN does a change in the duty cycle G of the dimming output signal AS take place. In this way, DC voltage fluctuations are disregarded. Flickering of the lamp 11 is avoided.
  • a rate of change threshold may be defined, with changes in dimming input signal UD taken into account only if its rate of change is less than the rate of change threshold. Disturbances of the DC dimming input signal UD with steep edges can be filtered out in this way and cause no unwanted change in the duty cycle G of the output signal AS.
  • the time duration of the changes of the dimming input signal UD can also be used as a change criterion. The change criterion can be met, for example, if the dimming input signal UD within a predetermined time window does not return to the initial value that it had at the beginning of the change. Short-term voltage changes in which the DC value before and after the change is the same, thus causing no accidental changes in the duty cycle G.
  • the rate of change of the duty cycle G is limited to a maximum value. Exceeds the rate of change UD the maximum value of the rate of change of the duty cycle G, the duty cycle G is tracked with the maximum possible Gradieten.
  • FIG. 4 is the basic operation of the device 10 and the method for dimming the lamp 11 based on an exemplary principle of the output signal UD associated duty cycle G shown.
  • the DC voltage value of the dimming input signal UD rises steeply. Because of the limitation of the rate of change of the duty cycle G, this changes less quickly.
  • the dimming input signal UD reaches a maximum. This maximum does not coincide with the minimum of the duty cycle G, which is only reached delayed by a period ⁇ t.
  • the dimming input signal UD slowly decreases. According to the selected characteristic, the duty G increases after reaching its minimum. From a third time t3, both the dimming input signal UD and the duty cycle G are approximately constant.
  • FIG. 4 It was assumed that the voltage value of the dimming input signal UD is between the first voltage threshold U1 and the second voltage threshold U2.
  • FIG. 4 linear change processes are shown. This is shown schematically by way of example only. Here you can also use non-linear gradients or graded ones Duty cycle changes take place. The exact change process depends on the selected dimming characteristic KL.
  • the invention relates to a device 10 and a method for dimming a lamp 11.
  • a dimming input signal UD is given in the form of a DC voltage.
  • a digital dimming output signal AS is generated.
  • a dimming characteristic KL is selected from a plurality of dimming characteristics or a current dimming characteristic KL is specified.
  • the dimming characteristic KL has a non-linear course over the entire voltage range of the DC voltage of the input signal UD.
  • a pulse width modulated dimming output signal AS with a fixed first duty cycle G is generated.
  • the output signal AS has a fixed second duty cycle G2.
  • a dimming output signal AS is formed, which has a duty cycle G which changes as a function of the DC voltage value.
  • the dependence of the duty cycle G on the DC voltage value of the dimming input signal UD can have an arbitrary linear or non-linear characteristic in this region.
  • the dimming output signal AS is transmitted via a first galvanic separating device 24 to the secondary side 26 of the device 10.
  • the dimming input signal UD is not only converted into a digital dimming output signal AS in a primary-side control unit 17, but at the same time there is a non-linear modification of the dimming input signal UD.
  • the invention relates to a device 10 and a method for dimming a lamp 11.
  • a dimming input signal UD is given in the form of a DC voltage.
  • a digital dimming output signal AS is generated.
  • a dimming characteristic KL is selected from a plurality of dimming characteristics.
  • a pulse-width-modulated dimming output signal AS with a fixed first duty cycle G1 is generated.
  • the output signal AS has a fixed second duty cycle G2.
  • a dimming output signal AS is formed, which has a duty cycle G which changes from the DC voltage value.
  • the dimming output signal AS is transmitted via a first galvanic separating device 24 to the secondary side 26 of the device 10.

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  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
EP11174209A 2010-07-16 2011-07-15 Procédé et dispositif destinés à atténuer un moyen d'éclairage à l'aide d'un microcontrôleur Ceased EP2408273A1 (fr)

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Application Number Priority Date Filing Date Title
DE201010036444 DE102010036444B4 (de) 2010-07-16 2010-07-16 Verfahren und Vorrichtung zum Dimmen eines Leuchtmittels mithilfe eines Mikrocontrollers

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2346305B1 (fr) * 2006-06-22 2018-09-26 Tridonic GmbH & Co KG Alimentation dimmable avec courbe caractéristique propre
WO2020254007A1 (fr) * 2019-06-19 2020-12-24 Ellenberger & Poensgen Gmbh Procédé pour faire fonctionner un variateur

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US9736887B2 (en) 2011-10-21 2017-08-15 Getac Technology Corporation Method and device for heating electronic component and electronic apparatus using the same
DE102012100849B4 (de) * 2012-02-01 2017-12-07 Getac Technology Corp. Verfahren und Gerät zum Aufheizen elektronischer Komponenten und elektronischer Geräte
DE102013225404A1 (de) * 2013-12-10 2015-06-11 BSH Hausgeräte GmbH Haushaltsgerät mit Halbleiterlichtquelle
CN118199613B (zh) * 2024-05-15 2024-08-09 无锡力芯微电子股份有限公司 一种关断电流为零的高速电平移位电路

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DE19748007A1 (de) * 1997-10-30 1999-05-12 Tridonic Bauelemente Schnittstelle für ein Lampenbetriebsgerät
US6225760B1 (en) * 1998-07-28 2001-05-01 Lutron Electronics Company, Inc. Fluorescent lamp dimmer system
EP1135005A2 (fr) * 2000-03-10 2001-09-19 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Dispositif pour commander des sources lumineuses munies d'un ballast
DE20300902U1 (de) * 2003-01-20 2004-05-19 Diehl Luftfahrt Elektronik Gmbh Steuergerät zur Ansteuerung von Lampen
DE102004020216A1 (de) * 2004-04-22 2005-11-10 Manfred Kluth Signalumsetzer
DE202006004692U1 (de) * 2005-06-03 2006-06-29 Insta Elektro Gmbh Dimmeranordnung mit mehreren Bedienstellen
DE60122038T2 (de) 2000-02-25 2007-02-15 Osram Sylvania Inc., Danvers Dimmbares Vorschaltgerät mit dualem Steuerungssignal
DE102006028670A1 (de) * 2006-06-22 2007-12-27 Tridonicatco Gmbh & Co. Kg Dimmbares Betriebsgerät mit interner Dimmkennlinie
US20080048584A1 (en) * 2003-07-30 2008-02-28 Lutron Electronics, Co., Inc. System and method for reducing flicker of compact gas discharge lamps at low lamp light output level
EP1639866B1 (fr) 2003-07-02 2008-08-20 TridonicAtco GmbH & Co. KG Interface pour appareils d'exploitation de lampes a faibles pertes en mode d'attente
US20100171435A1 (en) * 2003-11-12 2010-07-08 Venkatesh Chitta Thermal Protection For Lamp Ballasts

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Publication number Priority date Publication date Assignee Title
DE19748007A1 (de) * 1997-10-30 1999-05-12 Tridonic Bauelemente Schnittstelle für ein Lampenbetriebsgerät
US6225760B1 (en) * 1998-07-28 2001-05-01 Lutron Electronics Company, Inc. Fluorescent lamp dimmer system
DE60122038T2 (de) 2000-02-25 2007-02-15 Osram Sylvania Inc., Danvers Dimmbares Vorschaltgerät mit dualem Steuerungssignal
EP1135005A2 (fr) * 2000-03-10 2001-09-19 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Dispositif pour commander des sources lumineuses munies d'un ballast
DE20300902U1 (de) * 2003-01-20 2004-05-19 Diehl Luftfahrt Elektronik Gmbh Steuergerät zur Ansteuerung von Lampen
EP1639866B1 (fr) 2003-07-02 2008-08-20 TridonicAtco GmbH & Co. KG Interface pour appareils d'exploitation de lampes a faibles pertes en mode d'attente
US20080048584A1 (en) * 2003-07-30 2008-02-28 Lutron Electronics, Co., Inc. System and method for reducing flicker of compact gas discharge lamps at low lamp light output level
US20100171435A1 (en) * 2003-11-12 2010-07-08 Venkatesh Chitta Thermal Protection For Lamp Ballasts
DE102004020216A1 (de) * 2004-04-22 2005-11-10 Manfred Kluth Signalumsetzer
DE202006004692U1 (de) * 2005-06-03 2006-06-29 Insta Elektro Gmbh Dimmeranordnung mit mehreren Bedienstellen
DE102006028670A1 (de) * 2006-06-22 2007-12-27 Tridonicatco Gmbh & Co. Kg Dimmbares Betriebsgerät mit interner Dimmkennlinie

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2346305B1 (fr) * 2006-06-22 2018-09-26 Tridonic GmbH & Co KG Alimentation dimmable avec courbe caractéristique propre
WO2020254007A1 (fr) * 2019-06-19 2020-12-24 Ellenberger & Poensgen Gmbh Procédé pour faire fonctionner un variateur

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