EP1992203A1 - Ballasst électronique et procédé de fonctionnement d'une lampe électrique - Google Patents

Ballasst électronique et procédé de fonctionnement d'une lampe électrique

Info

Publication number
EP1992203A1
EP1992203A1 EP07726624A EP07726624A EP1992203A1 EP 1992203 A1 EP1992203 A1 EP 1992203A1 EP 07726624 A EP07726624 A EP 07726624A EP 07726624 A EP07726624 A EP 07726624A EP 1992203 A1 EP1992203 A1 EP 1992203A1
Authority
EP
European Patent Office
Prior art keywords
lamp
electronic ballast
filaments
electric lamp
electric
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.)
Granted
Application number
EP07726624A
Other languages
German (de)
English (en)
Other versions
EP1992203B1 (fr
Inventor
Olaf Busse
Bernhard Schemmel
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
Osram 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 Osram GmbH filed Critical Osram GmbH
Priority to PL07726624T priority Critical patent/PL1992203T3/pl
Publication of EP1992203A1 publication Critical patent/EP1992203A1/fr
Application granted granted Critical
Publication of EP1992203B1 publication Critical patent/EP1992203B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters
    • H05B41/295—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps

Definitions

  • the invention relates to an electronic ballast for an electric lamp having a first and a second lamp filament, wherein the electronic ballast ⁇ device has a heating device with a resonant circuit for heating the lamp filaments.
  • the invention also relates to a method for operating an electric lamp by means of an electronic ballast.
  • Electric lamps in particular gas discharge lamps, are adjusted and operated by means of electronic ballasts. It is essential that the electronic ballasts can only start or ignite an electric lamp when the electric lamp is properly inserted in a lamp. This requires that a query be made which indicates whether lamp filaments are properly electrically contacted.
  • a DC signal path is designed for this, which allows such a helical interrogation.
  • the helical interrogation is thus carried out exclusively by means of a DC starting path via the lamp filaments.
  • This DC start-up path generally comprises high-voltage resistors, which, however, are prone to failure. This allows the detection of whether an electric lamp ord- properly used in a lamp, not always be reliably guaranteed.
  • a solution according to electronic ballast is designed for operation of an electric lamp.
  • the e lectric lamp has a first and a second lamp ⁇ spiral.
  • the electronic ballast comprises a heating device which has a resonant circuit and which is designed for heating the lamp filaments.
  • the electronic ballast comprises an evaluation unit, which is designed to evaluate at least one measured value of an electrical parameter at specifiable and adjustable operating conditions of the resonant circuit.
  • the electronic ballast, and in particular the evaluation are so downloadedbil ⁇ det that depending on the measured value is recognizable how many lamp filaments of the electric lamp are properly contacted with the electronic ballast. Depending on this number identified the electric lamp by the electronic ballast Power ⁇ bar.
  • the electronic ballast allows in a ⁇ simple and low-cost manner reliable detection of whether an electric lamp is properly set in a light ⁇ .
  • the electronic ballast can practically ⁇ without additional circuit complexity realized ⁇ who and still allows the monitoring of all lamp filaments of an electric lamp with regard to a proper insertion of the electric lamp in the lamp and thus a proper electrical Kon ⁇ taktieren.
  • the electronic ballast is preferably formed without a DC signal path for lamp filament scanning the e- lectric lamp.
  • the circuit complexity of the electronic ballast can thereby be significantly reduced and the query of the lamp filaments can be made possible not only for a lamp filament but for all lamps ⁇ wendeln the electric lamp. This allows accommodatege a much reliable information ⁇ starting if the electric lamp properly in a -A-
  • Lamp is inserted and thereby a safe starting of the electric lamp by the electronic ballast device can be made possible.
  • the evaluation unit is designed such that when adjusting the resonance values of the operating Para ⁇ meter of the resonant circuit, a measured value of the electrical parameter is detected and by a comparison of the measured value with a predetermined threshold measurement value, the number of the connected lamp filaments is dependent determined.
  • the threshold measurement value corresponds to a the ⁇ oretician value of an electrical parameter in Reso ⁇ nanzfall of the resonant circuit and as a function of of the deviation ⁇ deviation of the measured measurement value of this threshold measurement value can be detected whether none, one or both of the lamp coils of the electric lamp electrically are contacted and the electric lamp is thus properly inserted into the lamp.
  • the measured value can be determined by a power measurement on a resistor of a half-bridge circuit of the electronic ballast.
  • a measured value can be detected in a circuit portion of the electronic ballast in a simple and low-cost manner, said scarf ⁇ processing area of the electronic ballast is formed anyway. An additional circuit complexity is therefore no longer necessary.
  • the number of detected lamp filaments is preferably equal to the total number of lamp filaments of the electric lamp.
  • the electric lamp is taken by the electronic ballast only in operation when it is reliably recognized that all lamp filaments of the electric lamp are connected to the electronic ballast and the e- lectric lamp is properly inserted into the lamp.
  • the electronic Vorschaltge ⁇ adviser is designed only for the operation of a single lamp type of an electric lamp. This allows in exactly ⁇ he way to specify a threshold reading and depend gig it sure to recognize how far a measured reading deviates, whereby the definitive statement can be guaranteed on the number of connected lamp filaments.
  • an electric lamp is ben by means of an electronic ballast Betrie ⁇ , the electric lamp has a first and a second lamp filament, and the electronic switching device before ⁇ a heating device with a resonant circuit for heating the lamp filaments comprises.
  • At predetermined settings of operating conditions of the resonant circuit in particular of the resonance conditions Resonanzkrei ⁇ ses is measured at least one value of an electric parame ters ⁇ and evaluated by an evaluation unit of the electro ⁇ African ballast. Depending on this measured value, it is recognized how many lamp filaments of the electric lamp with the electronic ballast are electrically contacted or connected to the electronic ballast and depending on this detected number, the electric lamp is turned on by the electronic ballast or not.
  • the solution according to the method allows a low-cost Ab ⁇ ask the lamp filaments with regard to a safe starting of the electric lamp. By the proposed method all lamp filaments of an electric lamp can be checked with regard to a proper electrical contact.
  • a value of the electric ⁇ parameter is detected and determined depending on a comparison of this measured value of a predetermined threshold value measured value, the number of connected lamp filaments.
  • the electric lamp is then turned on by the elekt ⁇ tronic ballast, when the number of detected at ⁇ lamp filaments is equal to the actual number of lamp filaments of the electric lamp. Exactly then, the electric lamp is properly inserted into the lamp and safe operation can then he ⁇ follow.
  • the height of the resonant resonance of the resonant circuit can be used to distinguish how many of the lamp filaments of the electric lamp on the electronic Ballast connected sen are. Only when it is recognized that all lamps ⁇ helixes of the electric lamp are ⁇ duly Schlos sen, the electronic ballast starts a normal start of the electric lamp. The voltages which arise when the lamp filaments are interrogated over the electric lamp can be selected in a simple and low-effort manner such that no safety standard for operation is violated.
  • the proposed Kon ⁇ concept is particularly suitable for electronic ballasts, in which a relatively inexpensive processor is employed.
  • FIG. 1 shows a circuit arrangement of an electronic ballast with an electric lamp according to an embodiment of the invention.
  • FIG. 2 shows a flow chart of an embodiment of a method according to the invention.
  • FIG. 1 shows a circuit arrangement in which the essential circuit parts of an electronic ballast 1 and an electric lamp 2 in terms are shown on the understanding of the invention.
  • the e- lectronic ballast 1 is to operate and provide a ⁇ of a single lamp type of an electric lamp 2 is formed.
  • the electric lamp 2 has a first lamp filament 21 and a second filament 22. For proper operation, the electric lamp 2 is inserted into a lamp and the lamp filaments 21 and 22 are electrically connected to the electronic ballast 1.
  • the electronic ballast 1 is without a DC start-up path for interrogating the lamp filaments 21 and 22 is formed ⁇ .
  • the electronic ballast 1 comprises a heating device in the form of a heating transformer for preheating the lamp filaments 21 and 22.
  • This heating device comprises a lamp filament series resistor 3, which is electrically connected to the first lamp filament 21 and is formed as a winding of a heating transformer. Furthermore, the heating device comprises a lamp filament series resistor 4, which is rather electrically connected to the second lamp filament 22. In addition, the heating device has a resonant circuit 5 which comprises a resistor 51 and a capacitor 52 connected in parallel thereto.
  • the lamp filament series resistors 3 and 4 form a secondary side of the heating transformer.
  • the primary side of the filament transformer is formed by the resistor 51 of the Reso ⁇ nanz Vietnamesees, taking place depending on the Settin ⁇ gene of the operating conditions of the resonant circuit a ent ⁇ speaking energy in the secondary circuit of the heating transformer.
  • a capacitor 6, which is designed as a trapezoidal capacitor, electrically connected By this capacitor 6, a relieved switching of a half-bridge circuit 7 can be achieved.
  • a lamp inductor 8 and a resonant capacitor 9 and a coupling capacitor 10 are connected in the circuit arrangement.
  • the electronic ballast 1 comprises an evaluation unit 11, which is for evaluating at least one measured value is formed of an electrical parameter at predeterminable before ⁇ settings of operating conditions of the resonant circuit. 5
  • the evaluation unit 11 is designed to detect a measured value, which can be determined by a power measurement on a resistor 7a of the half-bridge circuit 7 of the electronic ballast 1.
  • the evaluation unit 11 is electrically connected to the resonant circuit 5 via a separate measuring path 12 and that a measured value detection can take place via this measuring path 12.
  • FIG. 2 shows in a simple manner a flow chart in which a query of the lamp filaments 21 and 22 of the electric lamp 2 is started according to a step S1.
  • the resonance frequency of the resonance circuit is set to 5, and then a measured value of an electrical parameter in the exemplary embodiment, in the execution ⁇ for example an electric voltage is measured (step S2).
  • this measured value is compared with a predetermined threshold measured value, which in the exemplary embodiment corresponds to a threshold voltage which corresponds to the resonance voltage in the resonant case of the resonant circuit 5 when all of the lamp filaments 21 and 22 are properly contacted and thus the electric current see lamp 2 is ready for use in the lamp. Depending on this comparison can then be detected whether no or one or both lamp filaments 21 and 22 are connected to the electronic ballast 1 properly.
  • the measured value measured is smaller than the threshold value measured value, then it is detected that no or only one of the lamp filaments 21 or 22 is connected to the electronic ballast 1 and thus the electric lamp 2 not properly inserted into the light ⁇ is set. With such a result of the comparison of the measured values, it is recognized that the electric lamp must therefore not be started.
  • step S2 There is then a further query of the lamp filaments 21 and 22 and a new detection of a measured value according to the step S2.
  • This loop is run through until the measured measured value exceeds the threshold measured value in comparison with step S3.
  • pauses between the cycles are provided.
  • the electronic ballast device 1 is then started and the electric lamp 2 is switched on by the electronic ballast 1.
  • the measured values are preferably rectified With ⁇ mean values of a plurality of measured values.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

L'invention concerne un ballast électronique d'une lampe électrique (2) comprenant un premier (21) et un deuxième filament (22) et présentant un dispositif chauffant pour le chauffage des filaments (21, 22), le dispositif chauffant comportant un circuit résonant (5), et un ensemble d'évaluation (11) conçu pour évaluer au moins une valeur mesurée d'un paramètre électrique lors de réglages prédéterminés de conditions de fonctionnement du circuit résonant (5). On détermine, en fonction de la valeur mesurée, le nombre de filaments (21, 22) de la lampe électrique (2) en contact électrique avec le ballast électronique (1) et, en fonction du nombre déterminé, la lampe électrique (2) est mise sous tension par le ballast électronique (1). L'invention concerne également un procédé de fonctionnement d'une lampe électrique à l'aide d'un ballast électronique.
EP07726624A 2006-03-09 2007-03-05 Ballasst électronique et procédé de fonctionnement d'une lampe électrique Not-in-force EP1992203B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07726624T PL1992203T3 (pl) 2006-03-09 2007-03-05 Elektroniczny statecznik i sposób sterowania lampą elektryczną

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006010996A DE102006010996A1 (de) 2006-03-09 2006-03-09 Elektronisches Vorschaltgerät und Verfahren zum Betreiben einer elektrischen Lampe
PCT/EP2007/052030 WO2007101830A1 (fr) 2006-03-09 2007-03-05 Ballasst électronique et procédé de fonctionnement d'une lampe électrique

Publications (2)

Publication Number Publication Date
EP1992203A1 true EP1992203A1 (fr) 2008-11-19
EP1992203B1 EP1992203B1 (fr) 2012-11-28

Family

ID=38179547

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07726624A Not-in-force EP1992203B1 (fr) 2006-03-09 2007-03-05 Ballasst électronique et procédé de fonctionnement d'une lampe électrique

Country Status (8)

Country Link
US (1) US8558459B2 (fr)
EP (1) EP1992203B1 (fr)
CN (1) CN101395970B (fr)
CA (1) CA2643683A1 (fr)
DE (1) DE102006010996A1 (fr)
PL (1) PL1992203T3 (fr)
TW (1) TW200742500A (fr)
WO (1) WO2007101830A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009053617A1 (de) * 2009-11-17 2011-05-19 Osram Gesellschaft mit beschränkter Haftung Elektronisches Vorschaltgerät und Verfahren zum Betreiben mindestens einer Entladungslampe
US9363863B2 (en) 2014-06-12 2016-06-07 Biozone Scientific International, Inc. Electromagnetic radiation emitter identification apparatus and associated methods

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4140557A1 (de) * 1991-12-09 1993-06-17 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum betrieb einer oder mehrerer niederdruckentladungslampen
JPH0613187A (ja) 1992-06-26 1994-01-21 Denki Kogyo Co Ltd 放電灯点灯装置
DE19708792A1 (de) * 1997-03-04 1998-09-10 Tridonic Bauelemente Verfahren und Vorrichtung zum Erfassen des in einer Gasentladungslampe auftretenden Gleichrichteffekts
US5789866A (en) * 1997-07-11 1998-08-04 Energy Savings, Inc. Electronic ballast with reversely wound filament winding
JP2000021592A (ja) 1998-06-30 2000-01-21 Mitsubishi Electric Corp 放電灯点灯装置
TW319487U (en) * 2000-09-27 1997-11-01 Patent Treuhand Ges Fuer Elek Sche Gluhlampen Mbh Co Ltd Operating device for electrical lamps
DE10200053A1 (de) * 2002-01-02 2003-07-17 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Betriebsgerät für Entladungslampen mit Vorheizeinrichtung
US6891339B2 (en) * 2002-09-19 2005-05-10 International Rectifier Corporation Adaptive CFL control circuit
DE10345610A1 (de) * 2003-09-29 2005-05-12 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren zum Betreiben mindestens einer Niederdruckentladungslampe
JP4561350B2 (ja) * 2004-12-20 2010-10-13 東芝ライテック株式会社 放電灯点灯装置及び照明器具並びに照明システム
US7187132B2 (en) * 2004-12-27 2007-03-06 Osram Sylvania, Inc. Ballast with filament heating control circuit
DE102005013564A1 (de) * 2005-03-23 2006-09-28 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Schaltungsanordnung und Verfahren zum Betreiben mindestens einer Lampe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007101830A1 *

Also Published As

Publication number Publication date
PL1992203T3 (pl) 2013-06-28
EP1992203B1 (fr) 2012-11-28
TW200742500A (en) 2007-11-01
DE102006010996A1 (de) 2007-09-13
CN101395970B (zh) 2012-10-10
US20090096390A1 (en) 2009-04-16
WO2007101830A1 (fr) 2007-09-13
US8558459B2 (en) 2013-10-15
CA2643683A1 (fr) 2007-09-13
CN101395970A (zh) 2009-03-25

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