EP1705964A3 - Ballast with dimmer - Google Patents

Ballast with dimmer Download PDF

Info

Publication number
EP1705964A3
EP1705964A3 EP06004878A EP06004878A EP1705964A3 EP 1705964 A3 EP1705964 A3 EP 1705964A3 EP 06004878 A EP06004878 A EP 06004878A EP 06004878 A EP06004878 A EP 06004878A EP 1705964 A3 EP1705964 A3 EP 1705964A3
Authority
EP
European Patent Office
Prior art keywords
lamp current
ballast
dimmer
lamp
undershot
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
EP06004878A
Other languages
German (de)
French (fr)
Other versions
EP1705964B1 (en
EP1705964A2 (en
Inventor
Klaus Fischer
Josef Kreittmayr
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 EP1705964A2 publication Critical patent/EP1705964A2/en
Publication of EP1705964A3 publication Critical patent/EP1705964A3/en
Application granted granted Critical
Publication of EP1705964B1 publication Critical patent/EP1705964B1/en
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H05B41/298—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2988—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the lamp against abnormal 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
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • 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
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H05B41/3927—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by pulse width modulation
    • 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
    • Y10S315/04—Dimming circuit for fluorescent lamps

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)

Abstract

Die Erfindung betrifft ein Vorschaltgerät mit Dimmvorrichtung für eine Niederdruckentladungslampe. Zur Helligkeitssteuerung wird der Gleichanteil der periodisch modulierten Einhüllenden des Lampenstromes variiert. Vorgegebene minimale Werte des Lampenstromes werden dabei nicht unterschritten. Phasen mit hohem Lampenstrom zeichnen sich durch eine steile ansteigende Flanke aus, verglichen mit einer flacheren abfallenden Flanke.

Figure imgaf001
The invention relates to a ballast with dimming device for a low-pressure discharge lamp. For brightness control, the DC component of the periodically modulated envelope of the lamp current is varied. Predetermined minimum values of the lamp current are not undershot. Phases with high lamp current are characterized by a steep rising edge, compared to a flatter falling edge.
Figure imgaf001
EP06004878.2A 2005-03-22 2006-03-09 Ballast with dimmer Ceased EP1705964B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005013309A DE102005013309A1 (en) 2005-03-22 2005-03-22 Ballast with dimming device

Publications (3)

Publication Number Publication Date
EP1705964A2 EP1705964A2 (en) 2006-09-27
EP1705964A3 true EP1705964A3 (en) 2010-01-27
EP1705964B1 EP1705964B1 (en) 2013-11-06

Family

ID=36593667

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06004878.2A Ceased EP1705964B1 (en) 2005-03-22 2006-03-09 Ballast with dimmer

Country Status (4)

Country Link
US (1) US7327099B2 (en)
EP (1) EP1705964B1 (en)
CN (1) CN1849030B (en)
DE (1) DE102005013309A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2482639C2 (en) 2007-12-14 2013-05-20 Конинклейке Филипс Электроникс Н.В. Controlled light-generating device
DE102009047289A1 (en) * 2009-11-30 2011-06-22 Osram Gesellschaft mit beschränkter Haftung, 81543 Method for setting an electronic ballast, electronic ballast and matching unit

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9000202A (en) * 1990-01-29 1991-08-16 Philips Nv Circuit arrangement for low-pressure discharge lamp - adjusts amplitude averaged over modulation period of sinusoidal modulated high-frequency current
GB2277415A (en) * 1993-04-23 1994-10-26 Matsushita Electric Works Ltd Dimming discharge lamps
EP0785702A2 (en) * 1996-01-16 1997-07-23 Osram Sylvania Inc. Methods and apparatus for operating a discharge lamp
US6198234B1 (en) * 1999-06-09 2001-03-06 Linfinity Microelectronics Dimmable backlight system
US20020060537A1 (en) * 2000-09-15 2002-05-23 Sang-Woo Lee Dual mode electronic dimmer
WO2002091806A1 (en) * 2001-05-08 2002-11-14 Koninklijke Philips Electronics N.V. Pulse-width modulation for operating high pressure lamps
JP2002334799A (en) * 2001-03-05 2002-11-22 Toshiba Lighting & Technology Corp Compact self-ballasted fluorescent lamp
US20040183472A1 (en) * 2001-05-25 2004-09-23 Takeshi Kamoi Electronic ballast for a high intensity discharge lamp

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2049790T3 (en) 1989-10-09 1994-05-01 Siemens Ag ELECTRONIC ADAPTER.
DE3943350A1 (en) 1989-12-29 1991-07-04 Zumtobel Ag Gas discharge lamp operating circuit
JP3600976B2 (en) * 1998-07-14 2004-12-15 三菱電機株式会社 Discharge lamp lighting device
US6198236B1 (en) * 1999-07-23 2001-03-06 Linear Technology Corporation Methods and apparatus for controlling the intensity of a fluorescent lamp
US6307765B1 (en) * 2000-06-22 2001-10-23 Linfinity Microelectronics Method and apparatus for controlling minimum brightness of a fluorescent lamp
US7116063B2 (en) * 2003-07-28 2006-10-03 Matsushita Electric Works, Ltd. Dimmable discharge lamp lighting device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9000202A (en) * 1990-01-29 1991-08-16 Philips Nv Circuit arrangement for low-pressure discharge lamp - adjusts amplitude averaged over modulation period of sinusoidal modulated high-frequency current
GB2277415A (en) * 1993-04-23 1994-10-26 Matsushita Electric Works Ltd Dimming discharge lamps
EP0785702A2 (en) * 1996-01-16 1997-07-23 Osram Sylvania Inc. Methods and apparatus for operating a discharge lamp
US6198234B1 (en) * 1999-06-09 2001-03-06 Linfinity Microelectronics Dimmable backlight system
US20020060537A1 (en) * 2000-09-15 2002-05-23 Sang-Woo Lee Dual mode electronic dimmer
JP2002334799A (en) * 2001-03-05 2002-11-22 Toshiba Lighting & Technology Corp Compact self-ballasted fluorescent lamp
WO2002091806A1 (en) * 2001-05-08 2002-11-14 Koninklijke Philips Electronics N.V. Pulse-width modulation for operating high pressure lamps
US20040183472A1 (en) * 2001-05-25 2004-09-23 Takeshi Kamoi Electronic ballast for a high intensity discharge lamp

Also Published As

Publication number Publication date
US20060214605A1 (en) 2006-09-28
CN1849030A (en) 2006-10-18
CN1849030B (en) 2011-05-25
EP1705964B1 (en) 2013-11-06
DE102005013309A1 (en) 2006-09-28
EP1705964A2 (en) 2006-09-27
US7327099B2 (en) 2008-02-05

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