EP1555859B1 - Commande des dispositifsd'éclairage par des signaux modulés sur bus à courant continu - Google Patents

Commande des dispositifsd'éclairage par des signaux modulés sur bus à courant continu Download PDF

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Publication number
EP1555859B1
EP1555859B1 EP04027898.8A EP04027898A EP1555859B1 EP 1555859 B1 EP1555859 B1 EP 1555859B1 EP 04027898 A EP04027898 A EP 04027898A EP 1555859 B1 EP1555859 B1 EP 1555859B1
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EP
European Patent Office
Prior art keywords
power line
output circuit
lamp
rectifier
operating
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.)
Not-in-force
Application number
EP04027898.8A
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German (de)
English (en)
Other versions
EP1555859A1 (fr
Inventor
Dietmar Klien
Siegfried Luger
Falk Richter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tridonic GmbH and Co KG
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Tridonic GmbH and Co KG
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
Priority to EP10182692.3A priority Critical patent/EP2288238B1/fr
Publication of EP1555859A1 publication Critical patent/EP1555859A1/fr
Application granted granted Critical
Publication of EP1555859B1 publication Critical patent/EP1555859B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/24—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency
    • H05B41/245—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency for a plurality of lamps
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/175—Controlling the light source by remote control
    • H05B47/185—Controlling the light source by remote control via power line carrier transmission
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/175—Controlling the light source by remote control
    • H05B47/198—Grouping of control procedures or address assignation to light sources

Definitions

  • the present invention relates to the control of a plurality of illuminant operating devices from a central unit.
  • the light source is a gas discharge lamp 5, which is controlled by an electric ballast (ECG) 1 as a control gear.
  • ECG electric ballast
  • this electronic ballast 1 has a rectifier with power factor correction circuit (PFC, Power Factor Correction) 2, an electrolyte storage capacitor 4 and an RF inverter 3, which in turn via its output circuit 6, the gas discharge lamp 5 drives.
  • the DC voltage (bus voltage) is therefore only present within the ECG.
  • an emergency lighting control 7 may be provided.
  • the rectifier 2 in the electronic ballast 1 is usually supplied with alternating voltage 9, for example mains voltage.
  • WO 94/27419 and US 5,245,253 disclose a system and method for power distribution on gas discharge lamps.
  • a DC voltage network is described, which is fed by a central rectifier.
  • Several light source control gear are connected to the DC power supply.
  • a dimming circuit is disclosed which may be connected to the plurality of lighting devices.
  • US 2003/222603 A1 describes a control system and method for independently controlling branches of a lighting system. In particular, it is proposed to use a power line communication.
  • US 5,539,388 discloses to transmit high-frequency digital control signals by means of power line communication.
  • the starting point for the present invention is to propose control for illuminant operating devices, which enables more cost-effective production of operating devices.
  • the central point of the invention is that the unit rectifier / PFC is no longer provided locally in each operating device, but centrally for several operating devices.
  • the connection between this center and the individual operating devices is carried out according to the invention via a DC output circuit.
  • the present invention deals with the aspect of how operating devices can be supplied in a simple manner via the DC output circuit not only with the required operating power, but also with control signals.
  • a method for controlling lighting device operating devices by means of a central rectifier / PFC unit, which supplies a plurality of light source operating devices by means of at least one DC output circuit.
  • the DC supply voltage is modulated in a powerline technology high-frequency digital control signals, which are read by powerline demodulators in the operating devices and evaluated to control the associated light source, wherein in the DC output circuit or in the rectifier / PFC unit a powerline Modulator modulated on the DC output circuit modulated control signals.
  • powerline is to be understood in the broadest sense as a signal transmission via a power supply. Fundamentals of powerline technology can be found, for example, in the book “Powerline Communications” by Klaus Dorstedt, Verlag Prentice Hall, June 2001.
  • a power-line modulator for modulating supplied control signals to the DC output circuit can in the DC output circuit or be provided in the central rectifier / PFC unit.
  • a switch-off command are transmitted, whereupon this switches off the associated lamp via a powerline control command.
  • the gas discharge lamp can be switched off by switching off the inverter in the electronic ballast.
  • the powerline modulator may be preceded by a switch, wherein the powerline modulator issues a turn-off command to the DC output circuit in the form of a powerline command when the upstream switch is moved to its off position.
  • This conversion of the switch position into a digital control command has the advantage that it avoids the problems of the formation of a spark gap when opening the switch, which are common in high-voltage DC switches.
  • signals can also be transmitted bidirectionally in accordance with the powerline technology, so that signals can also be transmitted from one operating device to the central rectifier / PFC unit.
  • the corresponding operating device has a powerline modulator.
  • the powerline modulator can be provided separately (external) to the central rectifier / PFC unit and transmit signals regarding the operating state of a luminous means or the associated equipment to the rectifier / PFC unit.
  • the control commands may be individually addressable to operating devices and / or groups of operating devices in that the commands have an address header or an individual output circuit is assigned to the operating device (s) to be addressed. In the latter case, the addressing thus takes place by responding to that output circuit to which the device to be addressed is assigned.
  • Individual light sources and / or groups of light sources can thus be individually started and / or dimmed by means of the powerline control commands.
  • the powerline control commands can be modulated with an amplitude of less than 10%, in particular less than 5% of the DC voltage.
  • the requirements in the Powerline DC bus can be defined without regard to the requirements of network operators, so that the strict Restrictions on the powerline technology, as they prevail in public networks, must not be met. Namely, any high, high-frequency signal levels (modulation levels) in the DC bus cause no harm to the AC power supply.
  • an illumination system including a control system and light emitting devices.
  • This control system comprises a central rectifier / PFC unit, hereinafter referred to as "central unit”.
  • This central unit supplies by means of at least one DC output circuit several light source control gear.
  • the control system is adapted to choirmodulieren the DC supply voltage in a powerline high-frequency digital control signals, the operating devices each having a powerline demodulator, which reads the high-frequency digital control signals and evaluates the control of the operating devices associated bulbs, wherein in the DC Output circuit or in the rectifier / PFC unit, a powerline modulator is provided which modulates the supplied control signals.
  • a powerline modulator may be provided in the DC output circuit itself or in the central unit.
  • the powerline demodulator in an operating device can be designed to initiate a switch-off command, which it receives via the DC output circuit, the switching off of the respective associated light source.
  • a central processing unit comprising, for example, a rectifier 2 and a power factor correction circuit (PFC) 10 is provided for a plurality of illuminant operating devices 1, 1 ', 1 " also spatially separated from the control gear and can, for example, be centrally located for a room, a floor or even a building in a cabinet, etc.
  • PFC power factor correction circuit
  • the various light-emitting devices operating devices 1, 1 ', 1 a variety of light sources, such as a gas discharge lamp 5, LEDs 5', etc. control ..
  • the bulbs can therefore be operated with DC or AC voltage, in Last case in the zugehärigen operating device, an inverter is provided.
  • the operating devices 1, 1', 1" are designed differently.
  • the corresponding operating device 3 is, for example, designed as a ballast with an inverter.
  • the operating devices can also be referred to as "output converters".
  • an output circuit 11 can be bus-shaped, so that the various operating devices 1, 1 ', 1 "are supplied via stubs 13, 13', 13 '' starting from this central common bus 11.
  • individual ones can be supplied Operating devices or jointly supplied groups of operating devices individual output circuits 12 may be provided.
  • This DC output circuit has the advantage that it is less susceptible to parasitic effects than corresponding AC circuits.
  • Emergency lighting control units 7 or further control units 8 can be connected to the DC output circuit 11 or 12, and these devices can also read signals from the connected operating devices from the DC bus if they have a powerline demodulator.
  • the central unit is provided jointly for a plurality of operating devices, wherein the central unit with the Operating equipment is connected by means of at least one DC output circuit.
  • the voltage on the output circuit 11 may be for example 400 volts.
  • Fig. 1 For example, as can be seen, the DC output circuit 11 is strictly disconnected from the power supply voltage 9, as explained in detail below, a powerline modulation may be provided for the DC output circuit 11 that does not suffer from those restrictions normally prevailing in mains power supplies.
  • Fig. 3 a technique is shown, as by means of the DC bus in a simple manner, the operating devices 1 not only supplied with voltage, but also can be controlled.
  • powerline control signals are high-frequency modulated onto the DC bus 11.
  • the stroke of the modulation can be, for example, 10 volts at 400 volts DC voltage.
  • the modulation swing is small compared to the level of the DC voltage and bpsw. is less than 10% and preferably less than 5% of the DC voltage level.
  • Doe modulation frequency may be, for example, in the MHz range.
  • a power-line (PLC) modulator 17 is provided which modulates the control signals 23 supplied from a higher-level controller onto the DC bus 11.
  • the higher-level control can, for example, be a DALI (Digital Addressable Light Interface) controller.
  • DALI Digital Addressable Light Interface
  • control signals 23 may be complex control signals for starting, switching on and / or dimming, etc. of the lamps 14 connected to the corresponding operating device 1.
  • the PLC modulator 17 but also a simple, manually operable button or switch 18th so that the transfer of this switch 18 to the off position is implemented by the PLC modulator 17 into a powerline drive signal for the DC bus 11.
  • This powerline control signal is then read out by a PLC modulator 15, evaluated and transferred to a local control unit 16 in the operating device 1.
  • the local control unit 16 ensures that the read-out powerline control signals are converted into a corresponding operating state control signal for the connected lighting means 14.
  • a light source can be switched on, switched off and / or dimmed or queried states of a control gear from the central unit (master / slave principle).
  • the brightness control may be in a gas discharge lamp, for example by adjusting the frequency of the inverter in an electronic ballast (ECG).
  • a powerline control command with an address header may be provided so that the PLC demodulator 15 and the connected local control unit 16 detect can, whether the respective powerline control command for the associated control gear 1 is determined.
  • the operating device is assigned in advance an address which is stored in the operating device and which is known to the unit sending the control command.
  • the central unit 20 or the associated PLC modulator 17 can thereby address an operating device 1 with a powerline control command that a DC bus line 11 assigned to this operating device 1 is used for the transmission of the corresponding powerline control command.
  • the central processing unit 20 may have a plurality of output circuits 11, 12 (see Fig. 1 ), so as to different operating devices or groups to control differently on operating devices (for example, start, switch off, dimming the associated bulbs).
  • a sub-unit 20 may be provided, which may include the PLC modulator 17.
  • an AC voltage (AC intermediate voltage) rectified by the central unit can be present between the subunit 20 and the central unit.
  • the communication on the DC bus 11 is bidirectional. This means that not only can powerline control commands be transmitted from a control center 19 to local operating devices 1, but, for example, error messages and / or status signals from local operating devices can also be reported back to the control center 19.
  • the corresponding operating device 1 of course not only a PLC demodulator 15, but also a PLC modulator (not shown in figures) for the modulation of the feedback signals on the DC bus 11.

Landscapes

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

Claims (20)

  1. Procédé de commande d'appareils d'alimentation pour moyen d'éclairage au moyen d'une unité centrale redresseur/correcteur de facteur de puissance (2, 10), qui alimente plusieurs appareils d'alimentation pour moyen d'éclairage (1) au moyen d'au moins un circuit de sortie à courant continu (11),
    caractérisé en ce que des signaux de commande numériques à haute fréquence sont modulés sur la tension d'alimentation à courant continu selon une technique de courants porteurs en ligne (17), lesdits signaux de commande étant lus par des démodulateurs de courants porteurs (15) dans les appareils d'alimentation (1) et étant évalués pour la commande du moyen d'éclairage associé (5), dans lequel, dans le circuit de sortie à courant continu ou dans l'unité redresseur/correcteur de facteur de puissance (2, 10), un modulateur de courants porteurs module des signaux de commande fournis sur le circuit de sortie à courant continu.
  2. Procédé selon la revendication 1, caractérisé en ce que, pour mettre un moyen d'éclairage (5) hors circuit, une instruction de mise hors circuit est transmise au démodulateur de courants porteurs, après quoi celui-ci éteint le moyen d'éclairage associé par l'intermédiaire d'une instruction de commande sur courants porteurs correspondante.
  3. Procédé selon la revendication 2, caractérisé en ce que le moyen d'éclairage est une lampe à décharge de gaz et l'appareil d'alimentation est un ballast électronique, dans lequel la lampe à décharge de gaz est éteinte au moyen d'une mise hors circuit d'un onduleur dans le ballast.
  4. Procédé selon la revendication 2 ou 3, caractérisé en ce qu'un commutateur est connecté en amont du modulateur de courants porteurs, dans lequel le modulateur de courants porteurs délivre une instruction de mise hors circuit au circuit de sortie à courant continu lorsque le commutateur est mis dans une position de mise hors circuit.
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce que sur le circuit de sortie à courant continu des signaux sont transmis de manière bidirectionnelle selon la technique de courants porteurs en ligne, pour transmettre des signaux depuis un appareil d'alimentation jusqu'à l'unité centrale redresseur/correcteur de facteur de puissance.
  6. Procédé selon la revendication 5, caractérisé en ce que des messages d'erreur ou d'état sont transmis depuis un appareil d'alimentation jusqu'à l'unité redresseur/correcteur de facteur de puissance.
  7. Procédé selon l'une des revendications précédentes, dans lequel le modulateur de courants porteurs est distinct de l'unité centrale redresseur/correcteur de facteur de puissance et transmet des signaux relatifs à l'état de fonctionnement d'un moyen d'éclairage ou du moyen d'éclairage associé à l'unité redresseur/correcteur de facteur de puissance.
  8. Procédé selon l'une des revendications précédentes, caractérisé en ce que les instructions de commande sont adressables individuellement à des appareils d'alimentation et/ou à des groupes d'appareils d'alimentation, en ce que les instructions présentent un en-tête d'adresse ou un circuit de sortie individuel est associé respectivement à l'appareil/aux appareils de fonctionnement à adresser.
  9. Procédé selon la revendication 8, caractérisé en ce que, au moyen des instructions de commande sur courants porteurs, des moyens d'éclairage individuels et/ou des groupes de moyens d'éclairage sont démarrés individuellement et/ou leur intensité lumineuse est variée individuellement.
  10. Procédé selon l'une des revendications précédentes, caractérisé en ce que les signaux de commande sur courants porteurs sont modulés avec une amplitude inférieure à 10 %, en particulier inférieure à 5 % de la tension continue.
  11. Système d'éclairage comprenant un système de commande et des appareils d'alimentation pour moyen d'éclairage, présentant une unité centrale redresseur/correcteur de facteur de puissance, qui alimente plusieurs appareils d'alimentation pour moyen d'éclairage au moyen d'au moins un circuit de sortie à courant continu,
    caractérisé en ce qu'un modulateur de courants porteurs est prévu dans le circuit de sortie à courant continu, dans lequel le système de commande est conçu pour moduler des signaux de commande numériques à haute fréquence sur la tension d'alimentation continue selon une technique de courants porteurs en ligne, dans lequel les appareils d'alimentation présentent respectivement un démodulateur de courants porteurs, qui est conçu pour lire les signaux de commande numériques à haute fréquence et pour les évaluer pour commander le moyen d'éclairage associé aux appareils d'alimentation, dans lequel un modulateur de courants porteurs est prévu dans le circuit de sortie à courant continu ou dans l'unité redresseur/correcteur de facteur de puissance, ledit modulateur de courants porteurs étant conçu pour moduler des signaux de commande fournis.
  12. Système d'éclairage selon la revendication 11, caractérisé en ce que le démodulateur de courants porteurs est conçu pour, en réponse à une instruction de mise hors circuit, causer la mise hors circuit du moyen d'éclairage associé.
  13. Système d'éclairage selon la revendication 12, caractérisé en ce que le moyen d'éclairage est une lampe à décharge de gaz et l'appareil d'alimentation est un ballast électronique, dans lequel la lampe à décharge de gaz est susceptible d'être éteinte par la mise hors circuit d'un onduleur dans le ballast.
  14. Système d'éclairage selon la revendication 12 ou 13, caractérisé en ce qu'un commutateur est connecté en amont du modulateur de courants porteurs, dans lequel le modulateur de courants porteurs délivre une instruction de mise hors circuit au circuit de sortie lorsque le commutateur est mis dans une position de mise hors circuit.
  15. Système d'éclairage selon l'une des revendications 11 à 14, caractérisé en ce que le circuit de sortie à courant continu, l'unité centrale redresseur/correcteur de facteur de puissance ainsi que le démodulateur de courants porteurs sont conçus pour une transmission bidirectionnelle selon la technique de courants porteurs en ligne, pour transmettre des signaux depuis un appareil d'alimentation jusqu'à une unité centrale redresseur/correcteur de facteur de puissance.
  16. Système d'éclairage selon la revendication 15, caractérisé en ce que des messages d'erreur et/ou d'état sont aptes à être transmis depuis un appareil d'alimentation jusqu'à l'unité redresseur/correcteur de facteur de puissance.
  17. Système d'éclairage selon l'une des revendications 11 à 16, dans lequel le modulateur de courants porteurs est distinct de l'unité centrale redresseur/correcteur de facteur de puissance et est conçu pour transmettre à l'unité redresseur/correcteur de facteur de puissance des signaux relatifs à l'état de fonctionnement d'un moyen d'éclairage ou du moyen d'éclairage associé.
  18. Système d'éclairage selon l'une des revendications 11 à 17, caractérisé en ce que les instructions de commande sont adressables individuellement à des appareils d'alimentation et/ou à des groupes d'appareils d'alimentation, en ce que les instructions de commande sont munies d'un en-tête d'adresse ou en ce qu'un circuit de sortie individuel est associé à l'appareil/aux appareils d'alimentation à adresser.
  19. Système d'éclairage selon la revendication 18, caractérisé en ce que, au moyen des instructions de commande sur courants porteurs, des moyens d'éclairage individuels et/ou des groupes de moyens d'éclairage sont aptes à être démarrés individuellement et/ou leur intensité lumineuse est apte à être variée individuellement
  20. Système d'éclairage selon l'une des revendications 11 à 19, caractérisé en ce que le niveau de modulation s'élève à moins de 10 %, en particulier moins de 5 % de la tension continue.
EP04027898.8A 2004-01-14 2004-11-24 Commande des dispositifsd'éclairage par des signaux modulés sur bus à courant continu Not-in-force EP1555859B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10182692.3A EP2288238B1 (fr) 2004-01-14 2004-11-24 Commande des dispositifs d'éclairage par des signaux modulés sur bus à courant continu

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004002026A DE102004002026A1 (de) 2004-01-14 2004-01-14 Ansteuerung von Leuchtmittel-Betriebsgeräten über einen modulierten DC-Bus
DE102004002026 2004-01-14

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP10182692.3A Division EP2288238B1 (fr) 2004-01-14 2004-11-24 Commande des dispositifs d'éclairage par des signaux modulés sur bus à courant continu
EP10182692.3A Division-Into EP2288238B1 (fr) 2004-01-14 2004-11-24 Commande des dispositifs d'éclairage par des signaux modulés sur bus à courant continu

Publications (2)

Publication Number Publication Date
EP1555859A1 EP1555859A1 (fr) 2005-07-20
EP1555859B1 true EP1555859B1 (fr) 2014-01-22

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EP10182692.3A Not-in-force EP2288238B1 (fr) 2004-01-14 2004-11-24 Commande des dispositifs d'éclairage par des signaux modulés sur bus à courant continu
EP04027898.8A Not-in-force EP1555859B1 (fr) 2004-01-14 2004-11-24 Commande des dispositifsd'éclairage par des signaux modulés sur bus à courant continu

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Application Number Title Priority Date Filing Date
EP10182692.3A Not-in-force EP2288238B1 (fr) 2004-01-14 2004-11-24 Commande des dispositifs d'éclairage par des signaux modulés sur bus à courant continu

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Country Link
EP (2) EP2288238B1 (fr)
DE (1) DE102004002026A1 (fr)
HK (1) HK1148897A1 (fr)

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DE102015207677A1 (de) * 2015-04-27 2016-10-27 Tridonic Gmbh & Co Kg Leuchtmittel-Konverter mit Verpolschutzschaltung
DE102015211149B4 (de) * 2015-06-17 2024-09-12 Zumtobel Lighting Gmbh Intelligente Zusatzmodule für Leuchten
DE202016006286U1 (de) * 2016-10-10 2018-01-12 Tridonic Gmbh & Co. Kg Betriebsgerät für Leuchtmittel mit Ausgabe von Statusinformation insbesondere zur Fehleranalyse
DE102017202829A1 (de) * 2017-02-22 2018-08-23 Festo Ag & Co. Kg Signalvorrichtung
CN108650751A (zh) * 2018-07-23 2018-10-12 上海芯鸿电子科技有限公司 一种两线通讯的彩色led灯珠

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US3717858A (en) * 1970-08-12 1973-02-20 D Hadden Two conductor telemetering system
US4296450A (en) * 1979-10-05 1981-10-20 The United States Of America As Represented By The Secretary Of The Interior Discriminating circuit breaker protection system direct current power distribution systems
US4587436A (en) * 1980-07-28 1986-05-06 Lockheed Corporation Aircraft providing variable and constant electric power
EP0355532A2 (fr) * 1988-08-19 1990-02-28 Siemens Aktiengesellschaft Dispositif pour la transmission de données et d'une tension d'alimentation sur un bus
EP0365696A1 (fr) * 1988-10-24 1990-05-02 Siemens Aktiengesellschaft Système de transmission
US5245253A (en) * 1989-09-21 1993-09-14 Etta Industries Electronic dimming methods for solid state electronic ballasts
EP0463341A1 (fr) * 1990-06-22 1992-01-02 British Aerospace Public Limited Company Système de transmission numérique avec transmission de l'alimentation simultanée sur une seule ligne
US5289498A (en) * 1992-09-09 1994-02-22 Echelon Corporation Adaptive data recovery for spread spectrum systems
WO1994027419A1 (fr) * 1993-05-13 1994-11-24 Etta Industries, Inc. Systeme et procede d'alimentation en courant de lampe a decharge
EP1065105A1 (fr) * 1999-07-01 2001-01-03 Mannesmann VDO Aktiengesellschaft Circuit pour coupler des signaux entre des portions de cicuit avec lignes d'alimentation séparées
DE10160169A1 (de) * 2001-12-07 2003-06-26 Goodrich Hella Aerospace Ls Beleuchtungsvorrichtung für den Innenraum eines Fahrzeuges
US20030222603A1 (en) * 2002-06-03 2003-12-04 Systel Development & Industries Ltd Multiple channel ballast and networkable topology and system including power line carrier applications

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Also Published As

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EP2288238B1 (fr) 2014-10-15
DE102004002026A1 (de) 2005-08-04
EP1555859A1 (fr) 2005-07-20
EP2288238A2 (fr) 2011-02-23
HK1148897A1 (en) 2011-09-16
EP2288238A3 (fr) 2012-10-31

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