EP1945008A1 - Capteur de lampes pour un appareil de montage destiné au fonctionnement d'une lampe à décharge - Google Patents

Capteur de lampes pour un appareil de montage destiné au fonctionnement d'une lampe à décharge Download PDF

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Publication number
EP1945008A1
EP1945008A1 EP08155561A EP08155561A EP1945008A1 EP 1945008 A1 EP1945008 A1 EP 1945008A1 EP 08155561 A EP08155561 A EP 08155561A EP 08155561 A EP08155561 A EP 08155561A EP 1945008 A1 EP1945008 A1 EP 1945008A1
Authority
EP
European Patent Office
Prior art keywords
lamp
gas discharge
circuit
voltage
ballast
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
EP08155561A
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German (de)
English (en)
Other versions
EP1945008B1 (fr
Inventor
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
Original Assignee
Tridonicatco 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 Tridonicatco GmbH and Co KG filed Critical Tridonicatco GmbH and Co KG
Publication of EP1945008A1 publication Critical patent/EP1945008A1/fr
Application granted granted Critical
Publication of EP1945008B1 publication Critical patent/EP1945008B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H05B41/26—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
    • H05B41/298—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2981—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • H05B41/2985—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against abnormal lamp operating conditions
    • 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
    • H05B41/282—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
    • H05B41/285—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2851—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • H05B41/2855—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against abnormal lamp operating conditions

Definitions

  • the invention relates to a ballast for at least one gas discharge lamp.
  • the lamp electrodes are preheated before the ignition voltage is applied between them. It has been shown that the life of the lamps can be extended to a considerable extent by this measure.
  • the gas discharge lamp is usually operated on a series resonant circuit, wherein the resonant circuit capacitor is generally parallel to the discharge path of the gas discharge lamp.
  • the electrodes of the lamp are designed as heating coils, through which the current of the resonant circuit flows when the lamp is not lit.
  • the frequency is changed relative to the resonance frequency of the series resonant circuit such that the voltage across the resonant capacitor and thus across the gas discharge lamp does not cause ignition of the gas discharge lamp.
  • a substantially constant current flows through the lamp electrodes designed as helices, so that they are preheated.
  • the frequency is adjusted in the vicinity of the resonant frequency of the resonant circuit, whereby the voltage across the resonant capacitor increases so that the gas discharge lamp finally ignites.
  • the ballast should additionally have a function monitoring the status of the lamp in order to detect any malfunctions and to be able to initiate corresponding measures. These measures may include, for example, the shutdown of the high voltage part.
  • a malfunction may occur, for example, if one of the two coils or both are defective, or if the lamp has been completely removed or not (correctly) inserted into the sockets of the lamp.
  • Fig. 3 schematically shows a section of a ballast, which is designed on the one hand for detecting a lamp failure (coil breakage, non-insertion or removal of the lamp, etc.) and on the other hand for detecting the lamp voltage.
  • a lamp failure coil breakage, non-insertion or removal of the lamp, etc.
  • a lamp voltage It is denoted by the reference numeral 1 in the FIGS. 1 to 3 schematically an inverter with its two alternately clocked switches (power transistors) 17 and 18 referred to.
  • a load circuit 3 is connected, which has a series resonant circuit 22, consisting of a resonance inductor 16 (L R ) and a resonant capacitor 5 (C R ) .
  • a coupling capacitor 2 C K
  • the discharge path of the lamp 4 is connected in parallel with the resonance capacitor 5.
  • the heating coils 8 and 9 of the gas discharge lamp 4 can be seen.
  • a measuring resistor 26 (R) is connected, through which the lamp current and the Helical current flows.
  • a measuring signal 10a (S1) can be tapped which shows whether a heating current can flow through the coils 8 and 9 in the unfired condition of the lamp and if thus a lamp 4 with proper heating coils 8 and 9 is inserted in the provided sockets.
  • a voltage divider 7 is additionally connected in parallel to the gas discharge lamp 4 on the side of the coupling capacitor 2 ( C K ) of the load circuit 3.
  • This voltage divider 7 has two resistors 14 and 15 ( R 1 and R 2 ) , which are connected in series.
  • a signal 10b (S2) can be tapped, which is representative of the voltage applied across the discharge path of the gas discharge lamp 4 voltage.
  • the invention thus provides a ballast for operating a gas discharge lamp.
  • an inverter having two series-connected and connected to a DC voltage source, in push-pull transistor switch ( T 1 or T 2 ), which are connected via a coupling capacitor ( C K ) with a load circuit.
  • the load circuit as already known from the prior art, the gas discharge lamp and a series resonant circuit.
  • a sensor circuit is provided for the combined detection of a lamp failure and the voltage applied to the lamp based on a single measurement signal (S2).
  • the sensor circuit has a voltage divider which, on the one hand, is connected to the "upper" potential-carrying filament of the lamp and, on the other hand, to ground.
  • the sensor circuit 6 allows the tapping of a sensor signal (S2) for detecting a lamp failure or for detecting the lamp voltage.
  • S2 sensor signal
  • a high-resistance resistor R K may be connected in parallel to easily form a DC branch.
  • the sensor circuit may be integrated in an ASIC.
  • the heating power can be capacitively or inductively coupled into at least one filament of the gas discharge lamp.
  • a method for detecting the lamp voltage and for detecting a lamp failure in a ballast for gas discharge lamps is provided according to the invention.
  • the detection of the lamp voltage and the detection of a spiral breakage of the lamp based on a single measuring signal (S2).
  • S2 a single measuring signal
  • the filament current is monitored and during normal operation the lamp current is monitored.
  • Fig. 1 schematically an embodiment of the present invention is shown.
  • the ballast according to the invention has an inverter 1 with two series-connected, connected to a DC voltage source U bus and alternately clocked transistor switches 17 and 18 ( T 1 and T 2 ) on.
  • the switching can be effected by a control unit 23, which can be realized as an integrated circuit (IC) and in particular in an ASIC.
  • a load circuit 3 is connected, which has a series resonant circuit 22 and the lamp 4.
  • the series resonant circuit 22 consists of a resonance inductor 16 ( L R ) and a resonant capacitor 5 ( C R ).
  • the discharge path of the gas discharge lamp 4 between the two heating coils 8 and 9 is, as known, connected in parallel with the resonance capacitor 5 (C R ) .
  • a high-resistance resistor 12 ( R K ) is connected, so that bypassing the coupling capacitor 2 ( C K ) a low DC current I Dc through the upper heating coil 8 and a voltage divider explained later in detail. 7 can flow.
  • a measurement signal 10b is generated (Sensor signal S2) tapped, which after an analog-to-digital conversion of a (digital) evaluation circuit 13 can be supplied.
  • This evaluation circuit 13 can also be implemented as an integrated circuit.
  • the voltage divider 7 together with the signal tap 11 thus represents a sensor circuit 6 for detecting a lamp failure as well as for detecting the lamp voltage.
  • the evaluation circuit 13 can detect the following luminous states depending on the value of the sensor signal 10b (S2):
  • the high-resistance resistor 12 (R K ) in the parallel branch of the coupling capacitor 2 (C K ) further has the advantage that it so-called "Walmen", ie alternately bright and dark sections in the gas discharge lamp 4, by providing a can at least greatly reduce certain DC component.
  • Fig. 2 shows a further embodiment of the present invention.
  • the coupling of the heating power takes place in the heating coils 8 and 9 inductively via the two coils 19 and 20 ( L h 1 and L h 2 ) of a transformer. While a capacitive coupling of the heating power is usually preferred for non-dimmed devices, the dimmed devices, the inductive form of Schumacherseinkopplung is preferred.
  • the primary winding 21 ( L h 3 ) of a separate transformer can be used as a primary winding for the inductive heating power transmission.
  • the resonance inductance 16 ( L R ) is also shown schematically that the primary winding 21 ( L h 3 ) of a separate transformer can be used as a primary winding for the inductive heating power transmission.
  • the resonance inductance 16 ( L R ) is also shown schematically as a primary winding for the inductive coupling of the heating power into the heating coils 8 and 9 of the gas discharge lamp 4.
  • any type of coupling of the heating power in the heating coils 8 and 9 can be applied.
  • Inductance L h2 (implemented as a primary winding of a heating transformer Tr 2 ) for inductive coupling of the heating power in the second (lower) heating coil 9 of the gas discharge lamp.
  • Inductance L h3 (realized as a primary winding of a heating transformer Tr 3 ) for inductive coupling of the heating power in the heating coils of the gas discharge lamp.
  • 4 22 Series resonant circuit as part of the load circuit 3
  • Control unit (implemented as IC or ASIC) for driving the two realized as a self-locking n-channel MOSFETs T 1 and T 2 transistor switch 17 and 18th 24 Coupling capacitor C h 1 in Einkoppelzweig the first (upper) heating coil 8 of the gas discharge lamp.
  • 4 25 Coupling capacitor C h2 in Einkoppelzweig the second (lower) heating coil 9 of the gas discharge lamp.
  • 4 26 Measuring resistor R , connected in series with the second (lower) heating coil of the gas discharge lamp.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
EP08155561.7A 2002-02-18 2003-02-03 Capteur de lampes pour un appareil de montage destiné au fonctionnement d'une lampe à décharge Expired - Lifetime EP1945008B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10206731.7A DE10206731B4 (de) 2002-02-18 2002-02-18 Lampensensor für ein Vorschaltgerät zum Betrieb einer Gasentladunslampe
EP03704522A EP1477046B1 (fr) 2002-02-18 2003-02-03 Capteur de lampe pour ballast concu pour faire fonctionner une lampe a decharge gazeuse

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP03704522A Division EP1477046B1 (fr) 2002-02-18 2003-02-03 Capteur de lampe pour ballast concu pour faire fonctionner une lampe a decharge gazeuse
EP03704522.6 Division 2003-02-03

Publications (2)

Publication Number Publication Date
EP1945008A1 true EP1945008A1 (fr) 2008-07-16
EP1945008B1 EP1945008B1 (fr) 2013-09-11

Family

ID=27635102

Family Applications (2)

Application Number Title Priority Date Filing Date
EP03704522A Expired - Lifetime EP1477046B1 (fr) 2002-02-18 2003-02-03 Capteur de lampe pour ballast concu pour faire fonctionner une lampe a decharge gazeuse
EP08155561.7A Expired - Lifetime EP1945008B1 (fr) 2002-02-18 2003-02-03 Capteur de lampes pour un appareil de montage destiné au fonctionnement d'une lampe à décharge

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP03704522A Expired - Lifetime EP1477046B1 (fr) 2002-02-18 2003-02-03 Capteur de lampe pour ballast concu pour faire fonctionner une lampe a decharge gazeuse

Country Status (6)

Country Link
EP (2) EP1477046B1 (fr)
CN (1) CN1633830B (fr)
AT (1) ATE464774T1 (fr)
AU (1) AU2003206824A1 (fr)
DE (2) DE10206731B4 (fr)
WO (1) WO2003069963A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004037390B4 (de) * 2004-08-02 2008-10-23 Infineon Technologies Ag Ansteuerschaltung für eine Leuchtstofflampe mit einer Diagnoseschaltung und Verfahren zur Diagnose einer Leuchtstofflampe
DE102005018763A1 (de) * 2005-04-22 2006-10-26 Tridonicatco Gmbh & Co. Kg Betriebsgeräte mit Auswertung der Lampentemperatur bei der Lampenregelung
CN101155457B (zh) * 2006-09-29 2011-06-08 鸿富锦精密工业（深圳）有限公司 具有跳火保护功能的光源驱动装置
KR20110083823A (ko) * 2010-01-15 2011-07-21 삼성전자주식회사 아크노이즈 검출 회로, 이를 포함하는 광원 구동 장치 및 이를 이용하는 광원 구동 방법
CN106896244B (zh) * 2017-04-12 2023-10-10 江苏伊施德创新科技有限公司 老炼夹具及采用该夹具做接触状况和老炼结果测试的方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4120649A1 (de) * 1991-06-22 1992-12-24 Vossloh Schwabe Gmbh Ueberspannungsgeschuetztes vorschaltgeraet
EP0594880A1 (fr) * 1992-10-28 1994-05-04 Knobel Ag Lichttechnische Komponenten Procédé et circuit d'amorçage de lampes fluorescentes lorsque les électrodes de préchauffage ont atteint une température donnée
EP0689373A2 (fr) * 1990-12-07 1995-12-27 Tridonic Bauelemente GmbH Circuits pour commander l'intensité lumineuse et le mode de fonctionnement de lampes à décharge
EP0707437A2 (fr) * 1994-10-12 1996-04-17 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Circuit pour alimenter une ou plusieurs lampes à décharge
US5883473A (en) * 1997-12-03 1999-03-16 Motorola Inc. Electronic Ballast with inverter protection circuit
WO1999034648A1 (de) * 1997-12-23 1999-07-08 Tridonic Bauelemente Gmbh Elektronisches vorschaltgerät
EP1043918A1 (fr) * 1999-04-09 2000-10-11 Vossloh-Schwabe Elektronik GmbH Starter pour lampe à décharge avec détection d'erreur
WO2000072640A1 (fr) * 1999-05-25 2000-11-30 Tridonic Bauelemente Gmbh Ballast electronique destine a au moins une lampe a decharge basse tension
DE19934687A1 (de) * 1999-05-25 2000-12-21 Tridonic Bauelemente Elektronisches Vorschaltgerät für mindestens eine Niederdruck-Entladungslampe

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5041763A (en) * 1989-12-22 1991-08-20 Lutron Electronics Co., Inc. Circuit and method for improved dimming of gas discharge lamps
DE4301276A1 (de) * 1993-01-19 1994-07-21 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren und Stromversorgungseinheit zum stabilisierten Betrieb einer Natrium-Hochdruckentladungslampe
DE19530485A1 (de) * 1995-08-18 1997-02-20 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren und Schaltungsanordnung zum Betreiben einer elektrischen Lampe
DE19613149A1 (de) * 1996-04-03 1997-10-09 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum Betrieb elektrischer Lampen
US5808422A (en) * 1996-05-10 1998-09-15 Philips Electronics North America Lamp ballast with lamp rectification detection circuitry
CN1172412A (zh) * 1996-07-25 1998-02-04 浙江长丰电器实业公司 用于气体放电灯的电子镇流器
JP3858317B2 (ja) * 1996-11-29 2006-12-13 東芝ライテック株式会社 放電灯点灯装置及び照明装置
CN2421799Y (zh) * 2000-04-27 2001-02-28 上海市照明灯具研究所 高品质可调光电子镇流器

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0689373A2 (fr) * 1990-12-07 1995-12-27 Tridonic Bauelemente GmbH Circuits pour commander l'intensité lumineuse et le mode de fonctionnement de lampes à décharge
DE4120649A1 (de) * 1991-06-22 1992-12-24 Vossloh Schwabe Gmbh Ueberspannungsgeschuetztes vorschaltgeraet
EP0594880A1 (fr) * 1992-10-28 1994-05-04 Knobel Ag Lichttechnische Komponenten Procédé et circuit d'amorçage de lampes fluorescentes lorsque les électrodes de préchauffage ont atteint une température donnée
EP0707437A2 (fr) * 1994-10-12 1996-04-17 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Circuit pour alimenter une ou plusieurs lampes à décharge
US5883473A (en) * 1997-12-03 1999-03-16 Motorola Inc. Electronic Ballast with inverter protection circuit
WO1999034648A1 (de) * 1997-12-23 1999-07-08 Tridonic Bauelemente Gmbh Elektronisches vorschaltgerät
EP1043918A1 (fr) * 1999-04-09 2000-10-11 Vossloh-Schwabe Elektronik GmbH Starter pour lampe à décharge avec détection d'erreur
WO2000072640A1 (fr) * 1999-05-25 2000-11-30 Tridonic Bauelemente Gmbh Ballast electronique destine a au moins une lampe a decharge basse tension
DE19934687A1 (de) * 1999-05-25 2000-12-21 Tridonic Bauelemente Elektronisches Vorschaltgerät für mindestens eine Niederdruck-Entladungslampe

Also Published As

Publication number Publication date
ATE464774T1 (de) 2010-04-15
CN1633830A (zh) 2005-06-29
EP1477046B1 (fr) 2010-04-14
DE50312613D1 (de) 2010-05-27
DE10206731B4 (de) 2016-12-22
DE10206731A1 (de) 2003-08-28
EP1945008B1 (fr) 2013-09-11
WO2003069963A1 (fr) 2003-08-21
EP1477046A1 (fr) 2004-11-17
AU2003206824A1 (en) 2003-09-04
CN1633830B (zh) 2010-06-30

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