EP1992203B1 - Ballasst électronique et procédé de fonctionnement d'une lampe électrique - Google Patents

Ballasst électronique et procédé de fonctionnement d'une lampe électrique Download PDF

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Publication number
EP1992203B1
EP1992203B1 EP07726624A EP07726624A EP1992203B1 EP 1992203 B1 EP1992203 B1 EP 1992203B1 EP 07726624 A EP07726624 A EP 07726624A EP 07726624 A EP07726624 A EP 07726624A EP 1992203 B1 EP1992203 B1 EP 1992203B1
Authority
EP
European Patent Office
Prior art keywords
lamp
electronic ballast
electrical
filaments
resonant circuit
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
EP07726624A
Other languages
German (de)
English (en)
Other versions
EP1992203A1 (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

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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
    • H05B41/26—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 comprises 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. For this purpose, it is necessary that a query is performed, which can detect 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 can help detect if an electric lamp is working properly is used in a lamp, not always guaranteed reliable.
  • an electronic ballast has a heating device for heating the lamp reversal in the form of a transformer coil heating, the DC starting path must be decoupled from the heating winding by means of diodes or capacitors.
  • the ballast comprises a heating device for heating the lamp filaments, wherein the heating device also comprises a resonant circuit.
  • the heating device By means of an evaluation unit measured values can be evaluated and depending on the lamp are turned on.
  • a solution according to electronic ballast is designed for operation of an electric lamp.
  • the electric lamp has a first and a second lamp filament.
  • 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 designed such that, depending on the measured value can be seen, how many lamp filaments of the electric lamp are properly contacted with the electronic ballast. Depending on this detected number of electrical lamp is switched on by the electronic ballast.
  • the electronic ballast allows in a simple and low-cost manner reliable detection of whether an electric lamp is properly inserted in a lamp.
  • the electronic ballast can be realized with virtually no additional circuitry and yet 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 contact.
  • the electronic ballast is preferably formed without a DC signal path for lamp filament scanning of the electric 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 lamp filaments of the electric lamp. This allows a much more reliable statement as to whether the electric lamp is properly in one Lamp is used and thereby a safe starting of the electric lamp can be made possible by the electronic ballast.
  • the evaluation unit is designed such that when adjusting the resonance values of the operating parameters of the resonant circuit, a measured value of the electrical parameter can be detected and depending on a comparison of the measured value with a predefinable threshold measured value, the number of connected lamp filaments can be determined.
  • the threshold value corresponds to a theoretical value of an electrical parameter in the case of resonance of the resonant circuit and depending on the deviation of the measured value from this threshold value it can be detected whether none, one or both lamp filaments of the electric lamp are electrically connected and the electric lamp 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 in a circuit region of the electronic ballast can be detected in a simple and low-effort manner, wherein this circuit region of the electronic ballast is formed anyway. An additional circuit complexity is therefore no longer necessary.
  • a separate measuring path is formed, which is electrically connected to the resonant circuit.
  • the number of detected lamp filaments is equal to the total number of lamp filaments of the electric lamp.
  • the electronic ballast is designed only for the operation of a single lamp type of an electric lamp. This makes it possible to precisely specify a threshold measured value and, depending on this, to reliably recognize the extent to which a measured measured value deviates therefrom, as a result of which the reliable statement about the number of connected lamp filaments can also be ensured.
  • an electric lamp is operated by means of an electronic ballast, wherein the electric lamp has a first and a second lamp filament and the electronic ballast comprises a heating device with a resonant circuit for heating the lamp filaments.
  • the electronic ballast comprises a heating device with a resonant circuit for heating the lamp filaments.
  • At predefinable settings of operating conditions of the resonant circuit, in particular resonance conditions of the resonant circuit, at least one value of an electrical parameter is measured and evaluated by an evaluation unit of the electronic ballast. Depending on this measured value, it is recognized how many lamp filaments of the electric lamp with the electronic ballast electrically contacted or connected to the electronic ballast and depending on this detected number, the electric lamp is turned on or off by the electronic ballast.
  • the solution according to the method allows a low-cost querying 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 electrical parameter is detected and determines the number of connected lamp filaments depending on a comparison of this measured value of a predetermined threshold value.
  • the electric lamp is turned on by the electronic ballast when the number of detected 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 take place.
  • the magnitude of the resonant resonant circuit's resonant circuit can be used to distinguish how many of the lamp filaments of the electric lamp are connected to the electronic ballast are. Only when it is detected that all lamp filaments of the electric lamp are properly connected, 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 concept is particularly suitable for electronic ballasts where a relatively inexpensive processor is used.
  • 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 electronic ballast 1 is designed to operate and set a single lamp type of an electric lamp 2.
  • the electric lamp 2 has a first lamp filament 21 and a second lamp 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 formed without a DC start-up path for scanning the lamp filaments 21 and 22.
  • 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 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 heating transformer is formed by the resistor 51 of the resonant circuit, wherein, depending on the settings of the operating conditions of the resonant circuit, a corresponding energy is generated in the secondary circuit of the heating transformer.
  • 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 designed to evaluate at least one measured value of an electrical parameter at specifiable 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.
  • the evaluation unit 11 Depending on the detected measured value, which is evaluated by the evaluation unit 11, it can be seen how many lamp filaments 21 and 22 of the electric lamp 2 are properly contacted with the electronic ballast 1. Depending on this detected number of properly contacted lamp filaments 21 and 22, the electric lamp 2 can be started by the electronic ballast 1.
  • FIG. 2 is a flowchart shown in a simple manner, in which according to a step S1, a query of the lamp filaments 21 and 22 of the electric lamp 2 is started.
  • the resonant frequency of the resonant circuit 5 is set in the exemplary embodiment and then a measured value of an electrical parameter, in the exemplary embodiment an electrical 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 resonant voltage in the resonant case of the resonant circuit 5, if all lamp filaments 21 and 22 are properly contacted and thus the electric lamp 2 is ready for operation is inserted into 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 measured value, it is recognized 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 is not properly inserted in the Lamp is used. 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 filament 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.
  • both lamp filaments 21 and 22 are electrically contacted with the electronic ballast 1 and the electric lamp 2 is used to perform a safe operation in the lamp.
  • the electronic ballast 1 is then started and the electric lamp 2 is turned on by the electronic ballast 1.
  • the measured values are preferably rectified average values of a plurality of measured values.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Claims (10)

  1. Ballast électronique pour une lampe (2) électrique dotée d'un premier filament de lampe (21) et d'un second filament de lampe (22), qui présente un dispositif de chauffage pour le chauffage des filaments de lampe (21, 22), le dispositif de chauffage comprenant un circuit de résonance (5), et d'une unité d'analyse (11), qui est conçue pour l'analyse d'au moins une valeur mesurée d'un paramètre électrique dans le cas de réglages prédéfinissables de conditions de service du circuit de résonance (5),
    caractérisé en ce que
    en fonction de la valeur mesurée, on prévoit combien de filaments de lampes (21, 22) de la lampe (2) électrique sont mis en contact électriquement avec le ballast (1) électronique et, en fonction de ce nombre détecté, la lampe (2) électrique peut être enclenchée par le ballast (1) électronique.
  2. Ballast électronique selon la revendication 1,
    caractérisé en ce
    qu'il est conçu sans un chemin de signal DC pour interroger un filament de lampe (21, 22) de la lampe (2) électrique.
  3. Ballast électronique selon la revendication 1 ou 2,
    caractérisé en ce que
    l'unité d'analyse (11) est conçue de telle sorte que, en cas de réglage des valeurs de résonance des paramètres de service du circuit de résonance (5), une valeur mesurée du paramètre électrique peut être enregistrée et le nombre des filaments de lampe raccordés (21, 22) peut être déterminé en fonction d'une comparaison de la valeur mesurée avec une valeur mesurée de valeur seuil prédéfinissable.
  4. Ballast électronique selon l'une des revendications précédentes,
    caractérisé en ce que
    la valeur mesurée peut être déterminée par une mesure de puissance sur une résistance d'un circuit en demi-pont (7) du ballast (1) électronique.
  5. Ballast électronique selon l'une des revendications précédentes 1 à 3,
    caractérisé en ce que
    un chemin de mesure (12) séparé est conçu, lequel est relié électriquement au circuit de résonance (5).
  6. Ballast électronique selon l'une des revendications précédentes,
    caractérisé en ce que,
    pour la mise en route de la lampe (2) électronique par le ballast (1) électronique, le nombre des filaments de lampe (21, 22) détectés est identique au nombre total des filaments de lampe (21, 22) de la lampe (2) électrique.
  7. Ballast électronique selon l'une des revendications précédentes,
    caractérisé en ce
    qu'il n'est conçu que pour le fonctionnement d'un type de lampe d'une lampe (2) électrique.
  8. Procédé pour faire fonctionner une lampe (2) électrique au moyen d'un ballast (1) électronique, la lampe (2) électrique présentant un premier filament de lampe (21) et un second filament de lampe (22) et le ballast (1) électronique comprenant un dispositif de chauffage avec un circuit de résonance (1) pour le chauffage des filaments de lampe (21, 22) et au moins une valeur d'un paramètre électrique est mesurée en cas de réglages prédéfinis de conditions de service du circuit de résonance (5) et est analysée par une unité d'analyse (11) du ballast (1) électronique, caractérisé en ce que, en fonction de la valeur mesurée, on détecte combien de filaments de lampe (21, 22) de la lampe (2) électrique sont mis en contact avec le ballast (1) électronique et, en fonction de ce nombre détecté, la lampe (2) électrique est allumée par le ballast (1) électronique.
  9. Procédé selon la revendication 8,
    caractérisé en ce que,
    lors du réglage des valeurs de résonance des paramètres de service du circuit de résonance, au moins une valeur du paramètre électrique est enregistrée et le nombre des filaments de lampe (21, 22) raccordés est déterminé en fonction d'une comparaison de cette valeur avec une valeur de mesure à valeur seuil prédéfinissable.
  10. Procédé selon la revendication 8 ou 9,
    caractérisé en ce que
    la lampe (2) électrique est allumée par le ballast (1) électronique dans les cas où le nombre des filaments de lampe (21, 22) détectés est identique au nombre réel des filaments de lampe (21, 22) de la lampe (2) électrique.
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 EP1992203A1 (fr) 2008-11-19
EP1992203B1 true 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

Also Published As

Publication number Publication date
PL1992203T3 (pl) 2013-06-28
TW200742500A (en) 2007-11-01
EP1992203A1 (fr) 2008-11-19
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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