EP0330118A2 - Circuit pour alimenter une lampe à décharge à basse pression - Google Patents

Circuit pour alimenter une lampe à décharge à basse pression Download PDF

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Publication number
EP0330118A2
EP0330118A2 EP89102899A EP89102899A EP0330118A2 EP 0330118 A2 EP0330118 A2 EP 0330118A2 EP 89102899 A EP89102899 A EP 89102899A EP 89102899 A EP89102899 A EP 89102899A EP 0330118 A2 EP0330118 A2 EP 0330118A2
Authority
EP
European Patent Office
Prior art keywords
circuit
electrode
push
pressure discharge
discharge lamp
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Withdrawn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
EP89102899A
Other languages
German (de)
English (en)
Other versions
EP0330118A3 (fr
Inventor
Anton Zuchtriegel
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 EP0330118A2 publication Critical patent/EP0330118A2/fr
Publication of EP0330118A3 publication Critical patent/EP0330118A3/fr
Withdrawn legal-status Critical Current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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S315/00—Electric lamp and discharge devices: systems
    • Y10S315/05—Starting and operating circuit for fluorescent lamp

Definitions

  • the invention relates to a circuit arrangement for high-frequency operation of a low-pressure discharge lamp in accordance with the preamble of claim 1.
  • the object of the invention is to achieve a further simplification of the circuit arrangement with regard to the reclosure after the low-pressure discharge lamp has been replaced.
  • the new connection of the electrode does not direct the direct current from the power supply unit directly to the push-pull generator, but first flows through an electrode coil of the lamp, which can be arranged either between the positive or the negative poles of the circuit.
  • the circuit is therefore interrupted if there is no lamp in the socket or if there is a filament break in the designated filament.
  • the push-pull oscillator is thus de-energized and the shutdown circuit is not active, i.e. no power loss is consumed in the holding circuit. If an intact lamp is then plugged in, the corresponding filament of the lamp closes the circuit.
  • the required DC operating voltage can build up on the push-pull generator because the shutdown circuit is deactivated. The low-pressure discharge lamp is thus started again automatically.
  • attaching the electrode between the mains rectifier and push-pull generator offers the possibility of achieving increased preheating of the filament by means of the direct current flow.
  • a diode is connected in parallel with the electrode filament arranged between the mains rectifier and the push-pull generator. As a result, the preheating current on this coil is reduced to half the value.
  • the block diagram in FIG. 1 shows the basic structure of a circuit arrangement according to the invention for a low-pressure discharge lamp LP.
  • the circuit arrangement includes a high-frequency filter 1, a mains rectifier 2 and a push-pull frequency generator 3 with a series resonance circuit and a shutdown device.
  • the lamp LP has two electrodes E1 and E2, the two connections of the electrode E1 being connected to the push-pull generator 3.
  • the electrode E2 is connected with its one connection to the positive pole of the mains rectifier 2 and with its other connection to the input of the push-pull frequency generator 3.
  • a harmonic filter 4 is featured see that is connected between the positive pole of the rectifier 2 and the corresponding connection of the electrode E2.
  • FIG. 2 shows the exact circuit diagram of a circuit arrangement with a reclosing device according to the invention for operating a low-pressure discharge lamp.
  • a block of a current-compensated filter choke FD and a filter capacitor C1 are connected in parallel to the input of the line rectifier GL in each supply line.
  • the line rectifier GL follows this high-frequency filter and, in parallel, the push-pull frequency generator.
  • the self-regulating push-pull frequency generator consists of the two transistors T1, T2 with the same polarity and the reverse current diodes D3, D4, the series resistors R5 to R8, the control transformer and the starting generator with the resistors R4, R9, the starting capacitor C3, the diode D1 and the diac DC.
  • the control transformer works on the feedback principle and consists of the primary winding RK1.1 and the two secondary windings RK1.2 and RK1.3.
  • the lamp LP is connected by a connection of the electrode E1 to the center tap M1 between the two transistors T1, T2 and by a connection of the other electrode E2 to the positive pole of the mains rectifier GL.
  • a series resonance circuit comprising resonance inductance L1, coupling capacitor C7 and resonance capacitor C8 is provided, the resonance inductance L1 and the coupling capacitor C7 between the primary winding RK1.1 of the control transformer and the corresponding connection of the electrode E1 and the resonance capacitor C8 between the connections on the heating circuit side Electrodes E1 and E2 are switched.
  • a smoothing capacitor C2 In addition to the switching paths of the transistors T1, T2 there is a smoothing capacitor C2.
  • the circuit arrangement also has an active harmonic filter.
  • the filter consists of two diodes D5, D6 connected in series and in the forward DC direction to the positive pole of the power rectifier GL, the center tap M2 between the two diodes D5, D6 being connected via a capacitor C4 to the center tap M1 between the two transistors T1, T2.
  • the harmonic filter also contains two further diodes D7, D8 connected in series and in the forward DC direction, the center tap M3 between these two diodes D7, D8 via a capacitor C5 also with the center tap M1 between the two transistors T1, T2 and a capacitor C6 to the tap M4 between the resonance inductor L1 and the coupling capacitor C7.
  • the capacitor C6 also serves as a resonance capacitor if the heating current through the PTC thermistor KL has been reduced after the electrodes have been preheated.
  • the capacitors of the harmonic filter continuously pump energy into the smoothing capacitor C2, so that a sinusoidal mains current consumption is guaranteed. More detailed information on the mode of operation of the harmonic filter can be found in DE-OS 36 23 749.
  • the circuit arrangement therefore additionally has a switch-off device with trigger control.
  • This consists of a series connection of a diode D2, a resistor R2 and a thyristor TH, which connects the base of the transistor T1 to the negative pole of the mains rectifier GL.
  • the center tap M5 is connected between the resistor R2 and the thyristor TH via a resistor R1 to the positive pole of the smoothing capacitor C2.
  • the trigger control consists of the two Zener diodes DZ1, DZ2, which connect the gate of the thyristor TH to the positive pole of the smoothing capacitor C2, and of the resistor R3, which connects the gate of the thyristor TH to its cathode.
  • the two Zener diodes DZ1 and DZ2 become conductive with the same total breakdown voltage and thus trigger the turn-off thyristor TH.
  • the control energy is thus withdrawn from the base of the transistor T1 by dissipation to the negative pole of the mains rectifier GL; the transistor is blocked and the resonance circuit of inductance L1, capacitor C7 and capacitor C8 is de-energized.
  • the thyristor TH is kept in the conductive state, so that any renewed use of vibrations is prevented.
  • the diode D2 blocks the AC voltage from the anode circuit of the thyristor TH.
  • the electrode E2 is arranged between the diode D6 and D8 of the harmonic filter and the positive input of the transistor T1 of the push-pull generator.
  • the two current connections of the electrode E2 are also bridged by a diode D9 in the direct current blocking direction.
  • the electrodes are preheated by the construction of the circuit arrangement. However, this preheating is uneven, since the electrode E2 is inserted between the power supply and generator part, and this electrode is preheated due to the direct current flow. With the help of the diode, the preheating current of the preheating circuit on this coil is reduced to half the value, so that both electrodes are subjected to approximately the same load.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
EP19890102899 1988-02-22 1989-02-20 Circuit pour alimenter une lampe à décharge à basse pression Withdrawn EP0330118A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3805510A DE3805510A1 (de) 1988-02-22 1988-02-22 Schaltungsanordnung zum betrieb einer niederdruckentladungslampe
DE3805510 1988-02-22

Publications (2)

Publication Number Publication Date
EP0330118A2 true EP0330118A2 (fr) 1989-08-30
EP0330118A3 EP0330118A3 (fr) 1991-02-27

Family

ID=6347917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890102899 Withdrawn EP0330118A3 (fr) 1988-02-22 1989-02-20 Circuit pour alimenter une lampe à décharge à basse pression

Country Status (4)

Country Link
US (1) US4949013A (fr)
EP (1) EP0330118A3 (fr)
DE (1) DE3805510A1 (fr)
FI (1) FI885273A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2700434A1 (fr) * 1993-01-12 1994-07-13 De Mere Henri Edouard Courier Ballast électronique perfectionné.
FR2738444A1 (fr) * 1995-09-06 1997-03-07 Lor Hak Ballast electronique auto-oscillant a transformateur unique special et protection contre les allumages sans charge
EP0707437A3 (fr) * 1994-10-12 1997-12-03 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Circuit pour alimenter une ou plusieurs lampes à décharge
WO1999034649A1 (fr) * 1997-12-23 1999-07-08 Tridonic Bauelemente Gmbh Procede de detection de changement de lampe et ballast electronique destine au fonctionnement de lampes a decharge a l'aide d'un tel procede de detection de changement de lampe
EP1356713A2 (fr) * 2001-02-02 2003-10-29 Mass Technology (H.K.) Ltd. Ballast electronique modifie pour lampe fluorescente

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5051661A (en) * 1989-01-09 1991-09-24 Lee Sang Woo Protective circuit for fluorescent lamp stabilizer
IL93265A0 (en) * 1990-02-04 1990-11-29 Gaash Lighting Ind Electronic ballast for gas discharge lamp
DE4010435A1 (de) * 1990-03-31 1991-10-02 Trilux Lenze Gmbh & Co Kg Vorschaltgeraet fuer eine leuchtstofflampe
DE4121009C2 (de) * 1991-06-21 1994-01-13 Prolux Maschinenbau Gmbh Schaltungsanordnung zum Betrieb einer Entladungslampe
DE4120649A1 (de) * 1991-06-22 1992-12-24 Vossloh Schwabe Gmbh Ueberspannungsgeschuetztes vorschaltgeraet
DE4140557A1 (de) * 1991-12-09 1993-06-17 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum betrieb einer oder mehrerer niederdruckentladungslampen
US5424611A (en) * 1993-12-22 1995-06-13 At&T Corp. Method for pre-heating a gas-discharge lamp
US5424613A (en) * 1993-12-22 1995-06-13 At&T Corp. Method of operating a gas-discharge lamp and protecting same from overload
DE4410492A1 (de) * 1994-03-25 1995-09-28 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum Betrieb von Niederdruckentladungslampen
TW296894U (en) * 1995-11-21 1997-01-21 Philips Electronics Nv Circuit arrangement
GB9622768D0 (en) * 1996-11-01 1997-01-08 Lab Craft Limited Fluorescent lamp failure warning device
US5998941A (en) * 1997-08-21 1999-12-07 Parra; Jorge M. Low-voltage high-efficiency fluorescent signage, particularly exit sign
US6034485A (en) * 1997-11-05 2000-03-07 Parra; Jorge M. Low-voltage non-thermionic ballast-free energy-efficient light-producing gas discharge system and method
US6300722B1 (en) 1997-11-05 2001-10-09 Jorge M. Parra Non-thermionic ballast-free energy-efficient light-producing gas discharge system and method
DE19821351A1 (de) * 1998-05-13 1999-11-18 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum Betreiben elektrischer Lampen
US6465971B1 (en) 1999-06-02 2002-10-15 Jorge M. Parra Plastic “trofer” and fluorescent lighting system
US6411041B1 (en) 1999-06-02 2002-06-25 Jorge M. Parra Non-thermionic fluorescent lamps and lighting systems
DE10046443A1 (de) * 2000-09-18 2002-03-28 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Elektronische Schaltung zur Detektion des Wandelbruchs bei Gasentladungslampen
TW319487U (en) 2000-09-27 1997-11-01 Patent Treuhand Ges Fuer Elek Sche Gluhlampen Mbh Co Ltd Operating device for electrical lamps
US6731075B2 (en) * 2001-11-02 2004-05-04 Ampr Llc Method and apparatus for lighting a discharge lamp
US6936973B2 (en) * 2002-05-31 2005-08-30 Jorge M. Parra, Sr. Self-oscillating constant-current gas discharge device lamp driver and method
US6750619B2 (en) 2002-10-04 2004-06-15 Bruce Industries, Inc. Electronic ballast with filament detection
US6819063B2 (en) * 2002-12-13 2004-11-16 Bruce Industries, Inc. Sensing voltage for fluorescent lamp protection
DE102004001618A1 (de) * 2004-01-09 2005-08-11 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Schaltungsanordnung zum Betrieb von Lichtquellen
DE102004001617A1 (de) * 2004-01-09 2005-08-11 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Schaltungsanordnung zum Betrieb von Lichtquellen
DE102004045514A1 (de) * 2004-09-20 2006-03-30 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Schaltungsanordnung zum Betrieb mindestens einer Lichtquelle
DE102006052024A1 (de) * 2006-11-03 2008-05-08 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Schaltungsanordnung für Niederdruckentladungslampen
CN103491694B (zh) * 2013-08-27 2016-03-09 钟海停 荧光灯节能专用模块

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982000561A1 (fr) * 1980-08-05 1982-02-18 Kerscher M Installation pour la mise en marche d'une lampe a decharge avec electrodes chauffees
EP0056889A1 (fr) * 1981-01-26 1982-08-04 Top-Ping Hwang Source de tension simplifiée pour lampes fluorescentes
EP0198632A2 (fr) * 1985-04-04 1986-10-22 Chwee Tor Lee Ballast électronique pour lampe fluorescente
EP0239793A1 (fr) * 1986-03-14 1987-10-07 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Disposition de circuit pour la mise en oeuvre de lampes à décharge basse pression
EP0276460A1 (fr) * 1987-01-08 1988-08-03 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Disposition de circuit pour mettre en oeuvre une lampe à décharge basse pression

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982000561A1 (fr) * 1980-08-05 1982-02-18 Kerscher M Installation pour la mise en marche d'une lampe a decharge avec electrodes chauffees
EP0056889A1 (fr) * 1981-01-26 1982-08-04 Top-Ping Hwang Source de tension simplifiée pour lampes fluorescentes
EP0198632A2 (fr) * 1985-04-04 1986-10-22 Chwee Tor Lee Ballast électronique pour lampe fluorescente
EP0239793A1 (fr) * 1986-03-14 1987-10-07 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Disposition de circuit pour la mise en oeuvre de lampes à décharge basse pression
EP0276460A1 (fr) * 1987-01-08 1988-08-03 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Disposition de circuit pour mettre en oeuvre une lampe à décharge basse pression

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2700434A1 (fr) * 1993-01-12 1994-07-13 De Mere Henri Edouard Courier Ballast électronique perfectionné.
EP0707437A3 (fr) * 1994-10-12 1997-12-03 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Circuit pour alimenter une ou plusieurs lampes à décharge
FR2738444A1 (fr) * 1995-09-06 1997-03-07 Lor Hak Ballast electronique auto-oscillant a transformateur unique special et protection contre les allumages sans charge
WO1999034649A1 (fr) * 1997-12-23 1999-07-08 Tridonic Bauelemente Gmbh Procede de detection de changement de lampe et ballast electronique destine au fonctionnement de lampes a decharge a l'aide d'un tel procede de detection de changement de lampe
EP1356713A2 (fr) * 2001-02-02 2003-10-29 Mass Technology (H.K.) Ltd. Ballast electronique modifie pour lampe fluorescente

Also Published As

Publication number Publication date
FI885273A (fi) 1989-08-23
EP0330118A3 (fr) 1991-02-27
FI885273A0 (fi) 1988-11-15
US4949013A (en) 1990-08-14
DE3805510A1 (de) 1989-08-31

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