EP1202612A3 - Lighting system with improved preheating of discharge lamps - Google Patents

Lighting system with improved preheating of discharge lamps Download PDF

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Publication number
EP1202612A3
EP1202612A3 EP01123438A EP01123438A EP1202612A3 EP 1202612 A3 EP1202612 A3 EP 1202612A3 EP 01123438 A EP01123438 A EP 01123438A EP 01123438 A EP01123438 A EP 01123438A EP 1202612 A3 EP1202612 A3 EP 1202612A3
Authority
EP
European Patent Office
Prior art keywords
lighting system
preheating
discharge lamps
frequency
improved preheating
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
EP01123438A
Other languages
German (de)
French (fr)
Other versions
EP1202612B1 (en
EP1202612A2 (en
Inventor
Alfons Lechner
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 EP1202612A2 publication Critical patent/EP1202612A2/en
Publication of EP1202612A3 publication Critical patent/EP1202612A3/en
Application granted granted Critical
Publication of EP1202612B1 publication Critical patent/EP1202612B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

Bei einem Beleuchtungssystem, das ein elektronisches Betriebsgerät und eine Gasentladungslampe mit Wendeln enthält, ist jeweils ein Wendelanschluss mit einem Impedanznetzwerk verbunden. Das Impedanznetzwerk hat eine Impedanzfunktion mit einer Nullstelle bei der Frequenz f1. Zur Vorheizung gibt das elektronische Betriebsgerät eine Spannung ab, deren Frequenz nahe der Frequenz f1 liegt. Damit wird erreicht, dass während der Vorheizung die Spannung über der Lampe unterhalb der Nichtzündspannung liegt.

Figure 00000001
In the case of a lighting system which contains an electronic control gear and a gas discharge lamp with filaments, one filament connection is connected to an impedance network. The impedance network has an impedance function with a zero at frequency f1. For preheating, the electronic operating device outputs a voltage whose frequency is close to the frequency f1. This ensures that the voltage across the lamp is below the non-ignition voltage during preheating.
Figure 00000001
EP01123438A 2000-10-30 2001-09-28 Lighting system with improved preheating of discharge lamps Expired - Lifetime EP1202612B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10053803A DE10053803A1 (en) 2000-10-30 2000-10-30 Lighting system with gentle preheating of gas discharge lamps
DE10053803 2000-10-30

Publications (3)

Publication Number Publication Date
EP1202612A2 EP1202612A2 (en) 2002-05-02
EP1202612A3 true EP1202612A3 (en) 2003-11-19
EP1202612B1 EP1202612B1 (en) 2005-06-29

Family

ID=7661581

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01123438A Expired - Lifetime EP1202612B1 (en) 2000-10-30 2001-09-28 Lighting system with improved preheating of discharge lamps

Country Status (5)

Country Link
US (1) US6788001B2 (en)
EP (1) EP1202612B1 (en)
AT (1) ATE298970T1 (en)
CA (1) CA2360052A1 (en)
DE (2) DE10053803A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7592753B2 (en) * 1999-06-21 2009-09-22 Access Business Group International Llc Inductively-powered gas discharge lamp circuit
DE102004037382A1 (en) * 2004-04-02 2005-10-20 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Ballast for at least one lamp
US7821208B2 (en) * 2007-01-08 2010-10-26 Access Business Group International Llc Inductively-powered gas discharge lamp circuit
EP2138017B1 (en) * 2007-04-23 2011-06-15 Osram Gesellschaft mit beschränkter Haftung Circuit arrangement for operating a vacuum gas discharge lamp
US20090066486A1 (en) * 2007-09-11 2009-03-12 Omni Control Systems, Inc. Modular signal device for a room occupancy management system and a method for using same
US8641256B2 (en) 2007-11-06 2014-02-04 Sanken Electric Co., Ltd. Semiconductor light emitting device, composite light emitting device with arrangement of semiconductor light emitting devices, and planar light source using composite light emitting device
WO2009089918A1 (en) * 2008-01-18 2009-07-23 Osram Gesellschaft mit beschränkter Haftung Electronic ballast and method for operating at least one gas discharge lamp
TWI405501B (en) * 2008-04-21 2013-08-11 Delta Electronics Inc Ballast being capable of saving the use of internal connection terminals
US8217583B2 (en) * 2010-07-21 2012-07-10 Grenergy Opto, Inc. Gas-discharge lamp controller utilizing a novel reheating frequency generation mechanism

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5319284A (en) * 1993-07-30 1994-06-07 Lee Sang Woo Electronic ballast circuit for discharge lamp
EP0602719A1 (en) * 1992-12-16 1994-06-22 Koninklijke Philips Electronics N.V. High frequency inverter for a discharge lamp with preheatable electrodes
EP0848581A1 (en) * 1996-12-12 1998-06-17 Oy Helvar Cathode filament heating circuit for a low-pressure discharge lamp
US5920155A (en) * 1996-10-28 1999-07-06 Matsushita Electric Works, Ltd. Electronic ballast for discharge lamps

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3619716A (en) * 1969-07-23 1971-11-09 Lutron Electronics Co High-frequency fluorescent tube lighting circuit and ac driving circuit therefor
US3869639A (en) * 1973-08-24 1975-03-04 Gen Electric Emergency lighting system using dim to bright flashing operation
US4238708A (en) * 1975-01-09 1980-12-09 New Nippon Electric Company, Ltd. Discharge lamp operating system
US4350935A (en) * 1980-03-28 1982-09-21 Lutron Electronics Co., Inc. Gas discharge lamp control
US5404082A (en) * 1993-04-23 1995-04-04 North American Philips Corporation High frequency inverter with power-line-controlled frequency modulation
US5424614A (en) * 1994-03-03 1995-06-13 Usi Lighting, Inc. Modified half-bridge parallel-loaded series resonant converter topology for electronic ballast

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0602719A1 (en) * 1992-12-16 1994-06-22 Koninklijke Philips Electronics N.V. High frequency inverter for a discharge lamp with preheatable electrodes
US5319284A (en) * 1993-07-30 1994-06-07 Lee Sang Woo Electronic ballast circuit for discharge lamp
US5920155A (en) * 1996-10-28 1999-07-06 Matsushita Electric Works, Ltd. Electronic ballast for discharge lamps
EP0848581A1 (en) * 1996-12-12 1998-06-17 Oy Helvar Cathode filament heating circuit for a low-pressure discharge lamp

Also Published As

Publication number Publication date
US20020050797A1 (en) 2002-05-02
US6788001B2 (en) 2004-09-07
ATE298970T1 (en) 2005-07-15
DE10053803A1 (en) 2002-05-08
CA2360052A1 (en) 2002-04-30
EP1202612B1 (en) 2005-06-29
DE50106617D1 (en) 2005-08-04
EP1202612A2 (en) 2002-05-02

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