EP1740020A2 - Circuit et méthode pour alimenter au moins une Del et au moins une lampe à décharge - Google Patents

Circuit et méthode pour alimenter au moins une Del et au moins une lampe à décharge Download PDF

Info

Publication number
EP1740020A2
EP1740020A2 EP06013145A EP06013145A EP1740020A2 EP 1740020 A2 EP1740020 A2 EP 1740020A2 EP 06013145 A EP06013145 A EP 06013145A EP 06013145 A EP06013145 A EP 06013145A EP 1740020 A2 EP1740020 A2 EP 1740020A2
Authority
EP
European Patent Office
Prior art keywords
led
supply unit
circuit arrangement
electric lamp
arrangement according
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.)
Withdrawn
Application number
EP06013145A
Other languages
German (de)
English (en)
Other versions
EP1740020A3 (fr
Inventor
Olaf Busse
Markus Heckmann
Reinhard Lecheler
Alfons Lechner
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP1740020A2 publication Critical patent/EP1740020A2/fr
Publication of EP1740020A3 publication Critical patent/EP1740020A3/fr
Withdrawn legal-status Critical Current

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
    • H05B35/00—Electric light sources using a combination of different types of light generation

Definitions

  • the present invention relates to a circuit arrangement for operating at least one LED (light-emitting diode) and at least one electric lamp having at least a first and a second coil, comprising a first terminal for the first filament and a second terminal for the second filament of the electric lamp, and a lamp supply unit for supplying the electric lamp with power. It also relates to a corresponding operating method for at least one LED and at least one electric lamp to such a circuit arrangement.
  • both electric lamps for example fluorescent lamps
  • LEDs are operated in a lighting unit.
  • two ballasts are used in the prior art, namely a ballast for the LEDs and a second for the fluorescent lamps.
  • both ballasts are connected by the manufacturer of such a lighting unit via corresponding lines to the mains connection of the lighting unit.
  • a disadvantage of this known solution is the costs incurred by the manufacturer of such a lighting unit cabling and the costs incurred by the two ballasts of such lighting unit space.
  • the object of the present invention is therefore to further develop the circuit arrangement mentioned at the outset or the operating method mentioned at the outset in such a way that a reduction in the cabling effort and a reduction in the space required by the unit (s) used to drive the electric lamp (s) or the light-emitting diode (s) is made possible.
  • the present invention is based on the recognition that the disadvantages of the prior art can be overcome if the at least one electric lamp and the at least one LED are operated with one and the same ballast. Because this only requires a ballast to be connected to the power supply. On the other hand, such a ballast requires less space than the two ballasts that were necessary in the prior art approach, especially when certain assemblies are used both for the operation of the at least one electric lamp and for the operation of the at least one LED.
  • the LEDs can also be used to determine whether the electric lamp is intact. Namely, only when the electric lamp is intact, does a current flow take place to the second terminal for the second filament of the electric lamp, i. the sum of the currents to the second coil is not equal to zero, so that the at least one LED only lights up when the electric lamp is not defective.
  • a preferred embodiment is characterized in that the LED supply unit has an input and an output, wherein the input and the output are galvanically isolated from each other in terms of their potentials.
  • the potential separation ensures that no direct current is transferred from the input of the LED supply unit to the output of the LED supply unit.
  • the LED supply unit comprises a transformer whose primary side is coupled to the second terminal.
  • an alternating current with a constant amplitude and consequently also on the secondary side flows through the primary side of the transformer of the transformer.
  • the amplitude of the alternating current can be set on the secondary side.
  • the current through the LED determines the color and brightness of the light emitted by the LED.
  • the secondary side of the transformer is preferably connected in parallel with a capacitor.
  • the LED supply unit may comprise a capacitive coupling-out device which is coupled to the second connection.
  • the light-emitting diodes are preferably operated via two capacitors in parallel with a coupling capacitor, which is required for the operation of the electric lamp.
  • the current through the LEDs is less than or equal to the current through the electric lamp.
  • the capacitive coupling-out device likewise ensures that no direct current is transmitted from the input to the output of the LED supply unit.
  • so-called X or Y capacitors come into consideration for the capacitive coupling-out device.
  • a voltage limiting device in particular a Zener diode, is preferably connected in parallel with the at least one LED. This protects the at least one light-emitting diode from overloading, since in most light-emitting diodes the recorded power increases with the operating voltage. In particular in the case of a plurality of LEDs connected in series, this can prevent application errors of a circuit arrangement according to the invention.
  • the total number can be limited without overloading the circuit arrangement of operable LEDs and / or the entire power that can be converted in the LEDs.
  • the LED supply unit further comprises a rectifier which is designed to be connected to the output of the LED supply unit, i. H. at the terminal, where the at least one LED is connected to the LED supply unit to provide a rectified signal.
  • a rectifier which is designed to be connected to the output of the LED supply unit, i. H. at the terminal, where the at least one LED is connected to the LED supply unit to provide a rectified signal.
  • the second filament of the electric lamp is preferably the cold filament.
  • the input of the LED supply unit between the second terminal for the electric lamp and a reference potential, in particular ground, is coupled.
  • a smoothing inductor can be serially inserted in the current path of the LEDs.
  • FIG. 1 shows a schematic representation of a first embodiment of a circuit arrangement according to the invention, wherein for reasons of clarity, only the relevant in terms of the invention components are shown.
  • a so-called intermediate circuit voltage U zw is applied, which, as is well known, is generated from the mains voltage and usually is on the order of 400V.
  • a half-bridge circuit is used as the bridge circuit.
  • the invention may be practiced using a full bridge circuit or even conventional ballasts, ie, ballasts without bridge circuit, realized.
  • the switches S1 and S2 are driven in a known manner for the realization of an inverter. Between the two switches S1, S2, a center M of the bridge circuit is defined.
  • the bridge center M is connected via a coupling capacitor C1 and an inductance L1 with an electric lamp LP, in particular a fluorescent lamp.
  • the circuit arrangement comprises a first terminal A1 for a first filament W1 and a second terminal A2 for a second filament W2 of the lamp LP.
  • the filament W1 is the hot filament
  • the filament W2 is the cold filament of the lamp LP.
  • the LED supply unit 10 Connected to the second terminal A2 for the second filament W2 of the electric lamp is an LED supply unit 10, which is designed to supply the at least one LED with energy.
  • the LED supply unit 10 comprises a transformer Tr with a transmission ratio U, whose primary side, between the terminal A2 of the electric lamp LP and the ground potential is coupled.
  • the secondary side of the transformer Tr is a capacitor C3 connected in parallel, which allows the Eiri ein the current through the at least one LED regardless of the turn ratio Ü of the transformer Tr.
  • the capacitor C3 is coupled to the input of a rectifier comprising the diodes D1 to D4, the output of the rectifier being coupled to the LED.
  • a voltage limiting device in the present case a Zener diode Z1 is arranged parallel to the LED.
  • FIG. 2 shows a schematic representation of the relevant components of a second exemplary embodiment of a circuit arrangement according to the invention, the same reference numerals already introduced with reference to FIG. 1 being used for components which correspond to those of FIG.
  • the LED supply unit 10 comprises a capacitive decoupling device that is coupled to the second terminal A2 of the lamp LP.
  • This second extraction device comprises two capacitors C5, C6, which are operated in parallel with a coupling capacitor C4 for the lamp LP.
  • a current flows through the capacitor C5, the diode D1, the LED, the diode D4 and the capacitor C6.
  • a current flows through the capacitor C6, the diode D2, the LED, the diode D3 and the capacitor C5.
  • FIG 3 shows a schematic representation of the relevant components of a third embodiment of a circuit arrangement according to the invention, again for components which correspond to those of Figure 1, the same reference numerals already introduced with reference to Figure 1 are used.
  • the inductance L1 in the supply line of the electric lamp LP, the primary winding of a transformer, the two secondary windings L21 and L22 for the purpose of preheating the lamp together with the capacitors C7 and C8 serially to the respective terminals A1, A2 are arranged for the lamp LP.
  • the primary side of the transformer Tr has a first and a second winding, the first winding with the first lead of the terminal A2 and the second winding with the second lead of the Terminal A2 is coupled.

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
EP06013145A 2005-06-28 2006-06-26 Circuit et méthode pour alimenter au moins une Del et au moins une lampe à décharge Withdrawn EP1740020A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005030115A DE102005030115A1 (de) 2005-06-28 2005-06-28 Schaltungsanordnung und Verfahren zum Betrieb mindestens einer LED und mindestens einer elektrischen Lampe

Publications (2)

Publication Number Publication Date
EP1740020A2 true EP1740020A2 (fr) 2007-01-03
EP1740020A3 EP1740020A3 (fr) 2007-02-28

Family

ID=37071356

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06013145A Withdrawn EP1740020A3 (fr) 2005-06-28 2006-06-26 Circuit et méthode pour alimenter au moins une Del et au moins une lampe à décharge

Country Status (5)

Country Link
US (1) US20060290299A1 (fr)
EP (1) EP1740020A3 (fr)
CN (1) CN1968560A (fr)
CA (1) CA2550952A1 (fr)
DE (1) DE102005030115A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007066252A1 (fr) * 2005-12-09 2007-06-14 Koninklijke Philips Electronics N.V. Procédé d'attaque d'une lampe hybride et ensemble lampe hybride
WO2009033471A2 (fr) * 2007-09-12 2009-03-19 P.E.R. Flucht- Und Rettungsleitsysteme Gmbh Procédé et système d'éclairage de secours
WO2010086573A1 (fr) * 2009-02-02 2010-08-05 Sfidi Systeme d'eclairage electrique securise
EP2362717A3 (fr) * 2010-02-22 2017-01-11 Panasonic Intellectual Property Management Co., Ltd. Dispositif d'éclairage et accessoire d'éclairage correspondant

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8264159B2 (en) * 2007-06-29 2012-09-11 Osram Ag Circuit arrangement and method for operating at least one LED and at least one fluorescent lamp
US7759880B2 (en) * 2008-02-12 2010-07-20 General Electric Company Combined ballast for fluorescent lamp and light emitting diode and method of driving same
DE102010011157A1 (de) 2010-03-12 2011-09-15 Vossloh-Schwabe Deutschland Gmbh Betriebsgerät für eine Entladungslampe
DE102010029100A1 (de) 2010-05-19 2011-11-24 Osram Gesellschaft mit beschränkter Haftung Schaltungsanordnung zum Betreiben mindestens einer Entladungslampe und mindestens einer LED
CN102740534A (zh) * 2011-04-02 2012-10-17 欧司朗股份有限公司 用于驱动荧光灯和发光二极管的电路
CN103260288B (zh) * 2012-02-15 2017-06-06 欧司朗股份有限公司 发光二极管驱动装置及使用该装置的发光二极管灯

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1076476A2 (fr) * 1999-08-11 2001-02-14 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Dispositif pour alimenter au moins une diode électroluminescente
DE10013207A1 (de) * 2000-03-17 2001-09-20 Tridonic Bauelemente Ansteuerung von Leuchtdioden (LED`s)
WO2004097866A1 (fr) * 2003-05-02 2004-11-11 George Alan Limpkin Appareil destine a fournir de l'energie a une charge et systeme associe

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4218627A (en) * 1978-09-01 1980-08-19 Polaroid Corporation Electrical mean square voltage sensor
NL8900609A (nl) * 1989-03-14 1990-10-01 Nedap Nv Stuurschakeling.
DE19520999A1 (de) * 1995-06-08 1996-12-12 Siemens Ag Schaltungsanordnung zur Wendelvorheizung von Leuchtstofflampen
DE19708792A1 (de) * 1997-03-04 1998-09-10 Tridonic Bauelemente Verfahren und Vorrichtung zum Erfassen des in einer Gasentladungslampe auftretenden Gleichrichteffekts
US6150771A (en) * 1997-06-11 2000-11-21 Precision Solar Controls Inc. Circuit for interfacing between a conventional traffic signal conflict monitor and light emitting diodes replacing a conventional incandescent bulb in the signal
DE19923945A1 (de) * 1999-05-25 2000-12-28 Tridonic Bauelemente Elektronisches Vorschaltgerät für mindestens eine Niederdruck-Entladungslampe
US6791275B2 (en) * 2002-08-05 2004-09-14 Robertson Worldwide, Inc. Low pressure gas discharge lamp ballast with on-off indicator
DE10345610A1 (de) * 2003-09-29 2005-05-12 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zum Betreiben mindestens einer Niederdruckentladungslampe
US7187132B2 (en) * 2004-12-27 2007-03-06 Osram Sylvania, Inc. Ballast with filament heating control circuit
US7604370B2 (en) * 2005-02-08 2009-10-20 Versalite Associates Versatile lighting device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1076476A2 (fr) * 1999-08-11 2001-02-14 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Dispositif pour alimenter au moins une diode électroluminescente
DE10013207A1 (de) * 2000-03-17 2001-09-20 Tridonic Bauelemente Ansteuerung von Leuchtdioden (LED`s)
WO2004097866A1 (fr) * 2003-05-02 2004-11-11 George Alan Limpkin Appareil destine a fournir de l'energie a une charge et systeme associe

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007066252A1 (fr) * 2005-12-09 2007-06-14 Koninklijke Philips Electronics N.V. Procédé d'attaque d'une lampe hybride et ensemble lampe hybride
WO2009033471A2 (fr) * 2007-09-12 2009-03-19 P.E.R. Flucht- Und Rettungsleitsysteme Gmbh Procédé et système d'éclairage de secours
WO2009033471A3 (fr) * 2007-09-12 2009-05-22 P E R Flucht Und Rettungsleits Procédé et système d'éclairage de secours
WO2010086573A1 (fr) * 2009-02-02 2010-08-05 Sfidi Systeme d'eclairage electrique securise
FR2941822A1 (fr) * 2009-02-02 2010-08-06 Sfidi Systeme d'eclairage electrique securise.
EP2362717A3 (fr) * 2010-02-22 2017-01-11 Panasonic Intellectual Property Management Co., Ltd. Dispositif d'éclairage et accessoire d'éclairage correspondant

Also Published As

Publication number Publication date
EP1740020A3 (fr) 2007-02-28
DE102005030115A1 (de) 2007-01-18
CN1968560A (zh) 2007-05-23
US20060290299A1 (en) 2006-12-28
CA2550952A1 (fr) 2006-12-28

Similar Documents

Publication Publication Date Title
EP1740020A2 (fr) Circuit et méthode pour alimenter au moins une Del et au moins une lampe à décharge
EP1755363B1 (fr) Circuit pour alimenter au moins un tube à décharge fluorescent et au moins une DEL
EP1915036B1 (fr) Appareil de montage destiné au fonctionnement d'au moins une lampe à décharge basse tension
WO2012139691A1 (fr) Moyen d'éclairage destiné à être utilisé dans des douilles classiques pour tubes fluorescents
EP0264765A2 (fr) Disposition de circuit pour la mise en oeuvre de lampe à incandescence halogène basse tension
EP1836882B1 (fr) Ballast electronique
DE102012007449A1 (de) Verfahren zum Betreiben eines LLC-Resonanzwandlers für ein Leuchtmittel, Wandler und LED-Konverter
EP1425943B1 (fr) Procede et dispositif destines au fonctionnement economique d'un tube fluorescent
DE60028180T2 (de) Betriebsvorrichtung für entladungslampe
EP1202612B1 (fr) Dispositif d'éclairage à préchauffage amélioré pour lampes à décharge
DE2901844A1 (de) Elektronisches vorschaltgeraet fuer gasentladungslampen
EP0587602B1 (fr) Dispositif pour l'exploitation d'une lampe a decharge
EP2263421B1 (fr) Reconnaissance de l'état d'une connexion d'un dispositif de commande de source(s) lumineuse(s)
DE19951114B4 (de) Lampenansteuerschaltung
DE4318995C2 (de) Geregeltes Vorschaltgerät mit selbstschwingender Halbbrückenschaltung (elektronischer Transformator)
DE19903015A1 (de) Dimmbares Vorschaltgerät für Kaltkathoden-Fluoreszenzlampen
EP0143900B1 (fr) Dispositif auxiliaire pour régulariser la luminosité de lampes fluorescentes à basse tension
DE19944575B4 (de) Beleuchtungsvorrichtung mit mindestens einer elektrodenlosen Entladungslampe
WO1993005628A1 (fr) Circuit permettant le fonctionnement sans effets stroboscopiques de lampes fluorescentes
DE10203356B4 (de) Vorschaltgerät für Kaltkathoden-Fluoreszenzlampen
EP1294215A2 (fr) Ballast pour au moins une lampe à incandescence
DE10300249B4 (de) Elektronisches Vorschaltgerät für mehrere Gasentladungslampen
DE2942468A1 (de) Schaltungsanordnung fuer den hochfrequenten betrieb einer oder mehrerer leuchtstofflampen
DE102004042596A1 (de) Distaler Adapter für T5-Leuchtstofflampen mit elektronischem Nachrüst-Vorschaltgerät
EP1424879A1 (fr) Circuit électrique pour commander plusieurs tubes à décharge

Legal Events

Date Code Title Description
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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

17P Request for examination filed

Effective date: 20070507

17Q First examination report despatched

Effective date: 20070608

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20080527