WO1994015444A1 - Ballast pour au moins une paire de lampes luminescentes a gaz fonctionnant en parallele - Google Patents

Ballast pour au moins une paire de lampes luminescentes a gaz fonctionnant en parallele Download PDF

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Publication number
WO1994015444A1
WO1994015444A1 PCT/EP1993/002995 EP9302995W WO9415444A1 WO 1994015444 A1 WO1994015444 A1 WO 1994015444A1 EP 9302995 W EP9302995 W EP 9302995W WO 9415444 A1 WO9415444 A1 WO 9415444A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas discharge
discharge lamps
connection point
choke
lamp
Prior art date
Application number
PCT/EP1993/002995
Other languages
German (de)
English (en)
Inventor
Andreas SCHÖLL
Original Assignee
Tridonic Bauelemente 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6476455&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1994015444(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Tridonic Bauelemente Gmbh filed Critical Tridonic Bauelemente Gmbh
Priority to DE59305294T priority Critical patent/DE59305294D1/de
Priority to AU53715/94A priority patent/AU5371594A/en
Priority to EP93924069A priority patent/EP0676121B1/fr
Publication of WO1994015444A1 publication Critical patent/WO1994015444A1/fr
Priority to FI952655A priority patent/FI111791B/fi
Priority to NO952517A priority patent/NO308690B1/no

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
    • H05B41/282—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
    • H05B41/2825—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 by means of a bridge converter in the final stage
    • H05B41/2827—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 by means of a bridge converter in the final stage using specially adapted components in the load circuit, e.g. feed-back transformers, piezoelectric transformers; using specially adapted load circuit configurations
    • 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
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/382—Controlling the intensity of light during the transitional start-up phase

Definitions

  • the invention relates to a ballast for at least one pair of gas discharge lamps operated in parallel according to the preamble of claim 1.
  • ballast technology So far it has been assumed in ballast technology that two separate resonant circuits are also required for 2-lamp operation. This is because it has been assumed that when a common resonant circuit is used for both lamps, after the one lamp has been ignited, the resonant circuit voltage breaks down and is no longer sufficient to ignite the second lamp. As a rule, it can be assumed that both lamps are not the same
  • the invention has for its object that known ballast
  • the ballast according to the invention works with only a single resonant circuit despite the conceptual hindrance described above.
  • the cause apparently lies in the effect of the balancing transformer.
  • the current flowing through this lamp and the associated winding of the balancing transformer causes a voltage in the other winding which is superimposed on the voltage supplied by the resonant circuit (normally the voltages are compensated for by the two windings of the balancing transformer the opposite direction).
  • the above-described superimposition of the voltages on the lamp which has not yet ignited causes the lamp to also ignite.
  • the ignition of the lamp can be controlled by monitoring the lamp current. If it is found that after the first lamp has been ignited, the second Lamp does not ignite, so as before, the frequency of the inverter can be lowered to near the resonance frequency of the resonant circuit, with the result that the ignition voltage on the second lamp, which has not yet ignited, is increased. This then usually leads to the ignition of the second lamp.
  • ballast An exemplary embodiment of a ballast according to the invention is described below with reference to the single drawing.
  • the ballast shown in the drawing has a bridge rectifier G, which is connected to the network. The one generated by the rectifier G.
  • the DC voltage is fed to an inverter W R , which has an asymmetrical output.
  • the inverter W R is supplied with a DC voltage U DC generated by the rectifier G.
  • the inverter W R contains two switch elements connected in opposite directions in a known manner. The switching frequency can be changed. In this way, the inverter WR generates one at its output
  • a series resonant circuit is connected, which consists R and a resonant capacitor CR of a choke L.
  • the alternating voltage dropping across the resonance capacitor C R is supplied to two pairs of lamps L 1 , L 2 and L 3 , L 4 to be supplied via an isolating capacitor C T.
  • the isolating capacitor C T can also be provided between the inverter WR and the reactor LR. It is drawn in dashed lines in the drawing and is drawn with C T with a dash above.
  • a first balancing transformer Tsi is provided for the first pair of lamps L 1 , L 2 , which has two windings W S 1 , W S2 acting in the opposite direction. One end of these two windings is connected to the separating capacitor C T
  • each of the two windings W S1 , W S2 is connected to an electrode of one of the two lamps L 1 , L 2 .
  • the other electrode of the two lamps L 1 , L 2 is connected to ground via a resistor R 1 , R 2 .
  • the current flowing through the lamp L 1 generates a voltage drop U L1 across the resistor R 1 , which is used as a measured variable for the lamp current.
  • a voltage UL drops 2 which is used as a measured variable for the lamp current of the lamp L2.
  • the lamps L 1 and L 2 are heated directly, the two heating filaments being connected by heating capacitors C H1 and C H2 .
  • T S2 provided with two windings W S3 , W S4 acting in opposite directions. Again, the two windings are connected at one end, and the
  • connection point of the two windings is connected via the isolating capacitor C T to the connection point of the choke L R and the resonance capacitor C R.
  • the other ends of the two windings W S3 , W S4 are each connected to one electrode of the two lamps L 3 , L 4 .
  • the other electrodes of the two lamps L 3 , L 4 are directly connected here.
  • the connection point is with a
  • the heating filaments of lamps L 3 , L 4 are heated by means of a heating transformer T H1 , T H2 .
  • a heating transformer T H1 , T H2 an input winding W H1, W H4 of the two heating transformers is supplied with a heating voltage U H.
  • the heating transformer T H1 has two output windings W H2, W H3 , one of which is connected to a heating coil of the lamp L3.
  • the heating transformer T H2 has two output windings W H5, W H6 , each of which is connected to one of the two heating filaments of the lamp L 4 .
  • the frequency of the inverter W R is chosen so that it is relatively far above the resonance frequency of the choke L R and the resonant capacitor C R formed series resonant circuit. In this case, the voltage drop across the resonant capacitor C R is relatively small, so that none of the
  • Lamp of each lamp pair first.
  • the current flowing through the lamp induces in the winding of the corresponding one associated with the other lamp
  • Balancing transformer a voltage that is the ignition voltage of the other
  • Lamp overlaid with the result that the other lamp also ignites. If the other lamp is not ignited, which can be determined for example in the case of the lamps L 1 , L 2 by the voltages U L1 , U L2 , the frequency of the
  • the resonance frequency of the series resonance circuit is approaching. In this way, the ignition of the second lamp is ultimately forced.
  • Lamp pairs only a single series resonance circuit is provided. This measure allows the ballast according to the invention to be manufactured more easily and cheaply than previously.
  • a single balancing transformer (not shown) with four windings can be provided in the present case, two of which each act in opposite directions.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)

Abstract

L'invention concerne un ballast prévu pour au moins une paire de lampes luminescentes à gaz fonctionnant en parallèle, qui comporte un redresseur de courant (G) à raccorder au réseau à courant alternatif et un onduleur (WR) intercalé à la suite du redresseur. Un circuit accepteur (LR, CR) est connecté à la sortie de l'onduleur. Un transformateur d'équilibrage (TS1) adjoint à la paire de lampes (L1, L2) comporte deux enroulements (Wst, WS2) agissant en sens contraire. Les deux enroulements sont reliés mutuellement à une extrémité. Leur point de connexion est relié à celui de la bobine d'inductance (LR) et du condensateur à résonance (CR) du circuit accepteur. Les autres extrémités des deux enroulements sont reliées à une électrode des deux lampes (L1, L2).
PCT/EP1993/002995 1992-12-23 1993-10-28 Ballast pour au moins une paire de lampes luminescentes a gaz fonctionnant en parallele WO1994015444A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE59305294T DE59305294D1 (de) 1992-12-23 1993-10-28 Vorschaltgerät für mindestens ein parallel betriebenes gasentladungslampen-paar
AU53715/94A AU5371594A (en) 1992-12-23 1993-10-28 Ballast for at least one pair of gas discharge lamps in parallel
EP93924069A EP0676121B1 (fr) 1992-12-23 1993-10-28 Ballast pour au moins une paire de lampes luminescentes a gaz fonctionnant en parallele
FI952655A FI111791B (fi) 1992-12-23 1995-05-31 Liitäntälaite vähintään yhdelle rinnankäyttöiselle kaasupurkauslamppuparille
NO952517A NO308690B1 (no) 1992-12-23 1995-06-22 Drivkretsanordning for minst ett parallelldrevet par gassutladningslamper

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4243955A DE4243955B4 (de) 1992-12-23 1992-12-23 Vorschaltgerät für mindestens ein parallel betriebenes Gasentladungslampen-Paar
DEP4243955.8 1992-12-23

Publications (1)

Publication Number Publication Date
WO1994015444A1 true WO1994015444A1 (fr) 1994-07-07

Family

ID=6476455

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1993/002995 WO1994015444A1 (fr) 1992-12-23 1993-10-28 Ballast pour au moins une paire de lampes luminescentes a gaz fonctionnant en parallele

Country Status (9)

Country Link
EP (1) EP0676121B1 (fr)
AT (1) ATE148297T1 (fr)
AU (1) AU5371594A (fr)
DE (2) DE4243955B4 (fr)
ES (1) ES2097550T3 (fr)
FI (1) FI111791B (fr)
NO (1) NO308690B1 (fr)
WO (1) WO1994015444A1 (fr)
ZA (1) ZA939579B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7309964B2 (en) 2004-10-01 2007-12-18 Au Optronics Corporation Floating drive circuit for cold cathode fluorescent lamp
CN100452940C (zh) * 2000-08-10 2009-01-14 皇家菲利浦电子有限公司 具有耦合的磁元件的多灯液晶显示后光驱动器
US9030119B2 (en) 2010-07-19 2015-05-12 Microsemi Corporation LED string driver arrangement with non-dissipative current balancer
USRE46502E1 (en) 2011-05-03 2017-08-01 Microsemi Corporation High efficiency LED driving method

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69524593T2 (de) * 1995-09-27 2002-08-08 Koninkl Philips Electronics Nv Vorschaltgerät mit Symmetriertransformator für Leuchtstofflampen
CN1085962C (zh) * 1996-06-25 2002-06-05 W·L·戈尔有限公司 柔性防水防油复合材料
DE19625389A1 (de) * 1996-06-25 1998-01-02 Gore W L & Ass Gmbh Flexibler Verbundstoff
DE19715341C1 (de) * 1997-04-12 1998-10-15 Vossloh Schwabe Gmbh Elektronisches Vorschaltgerät mit automatischem Wiederanlauf
DE19715342C1 (de) * 1997-04-12 1998-12-17 Vossloh Schwabe Gmbh Vorschaltgerät für unabhängigen Parallelbetrieb von Niederdruck-Gasentladungslampen
US6069455A (en) * 1998-04-15 2000-05-30 Electro-Mag International, Inc. Ballast having a selectively resonant circuit
DE10049842A1 (de) 2000-10-09 2002-04-11 Tridonic Bauelemente Schaltungsanordnung zum Betreiben von mehreren Gasentladungslampen
DE10134966A1 (de) * 2001-07-23 2003-02-06 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Vorschaltgerät zum Betrieb mindestens einer Niederdruckentladungslampe
DE102007054805A1 (de) * 2007-11-16 2009-05-20 Tridonicatco Schweiz Ag Schaltungsanordnung zum Betreiben von Gasentladungslampen, bspw. HID-Lampen
DE102010063867A1 (de) * 2010-12-22 2012-06-28 Tridonic Gmbh & Co Kg Zündregelung und Zünderkennung von Gasentladungslampen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3917850A1 (de) * 1988-06-02 1989-12-07 Gen Electric Transformator mit gesteuertem leck fuer fluoreszenzlampen-vorschaltgeraete mit integralen ballast-induktivitaeten
US5081401A (en) * 1990-09-10 1992-01-14 Motorola, Inc. Driver circuit for a plurality of gas discharge lamps
EP0490329A1 (fr) * 1990-12-07 1992-06-17 Tridonic Bauelemente GmbH Système de contrôle de l'intensité lumineuse et du comportement de lampes à décharge

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3412942C2 (de) * 1984-04-06 1986-02-20 Trilux-Lenze Gmbh + Co Kg, 5760 Arnsberg Elektronisches Vorschaltgerät für mehrere Leuchtstofflampen
DK339586D0 (da) * 1986-07-16 1986-07-16 Silver Gruppen Prod As Elektronisk ballast
JPH03116689A (ja) * 1989-09-29 1991-05-17 Toshiba Lighting & Technol Corp 放電灯点灯装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3917850A1 (de) * 1988-06-02 1989-12-07 Gen Electric Transformator mit gesteuertem leck fuer fluoreszenzlampen-vorschaltgeraete mit integralen ballast-induktivitaeten
US5081401A (en) * 1990-09-10 1992-01-14 Motorola, Inc. Driver circuit for a plurality of gas discharge lamps
EP0490329A1 (fr) * 1990-12-07 1992-06-17 Tridonic Bauelemente GmbH Système de contrôle de l'intensité lumineuse et du comportement de lampes à décharge

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100452940C (zh) * 2000-08-10 2009-01-14 皇家菲利浦电子有限公司 具有耦合的磁元件的多灯液晶显示后光驱动器
US7309964B2 (en) 2004-10-01 2007-12-18 Au Optronics Corporation Floating drive circuit for cold cathode fluorescent lamp
US9030119B2 (en) 2010-07-19 2015-05-12 Microsemi Corporation LED string driver arrangement with non-dissipative current balancer
USRE46502E1 (en) 2011-05-03 2017-08-01 Microsemi Corporation High efficiency LED driving method

Also Published As

Publication number Publication date
NO952517D0 (no) 1995-06-22
FI952655A0 (fi) 1995-05-31
ES2097550T3 (es) 1997-04-01
DE59305294D1 (de) 1997-03-06
FI111791B (fi) 2003-09-15
ZA939579B (en) 1994-08-11
NO308690B1 (no) 2000-10-09
FI952655A (fi) 1995-05-31
DE4243955A1 (de) 1994-06-30
ATE148297T1 (de) 1997-02-15
DE4243955B4 (de) 2010-11-18
NO952517L (no) 1995-06-22
AU5371594A (en) 1994-07-19
EP0676121B1 (fr) 1997-01-22
EP0676121A1 (fr) 1995-10-11

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