EP0866646A3 - Process and circuit for operating at least one discharge lamp - Google Patents

Process and circuit for operating at least one discharge lamp Download PDF

Info

Publication number
EP0866646A3
EP0866646A3 EP98103764A EP98103764A EP0866646A3 EP 0866646 A3 EP0866646 A3 EP 0866646A3 EP 98103764 A EP98103764 A EP 98103764A EP 98103764 A EP98103764 A EP 98103764A EP 0866646 A3 EP0866646 A3 EP 0866646A3
Authority
EP
European Patent Office
Prior art keywords
discharge lamp
voltage
circuit
light
switched
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Withdrawn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
EP98103764A
Other languages
German (de)
French (fr)
Other versions
EP0866646A2 (en
Inventor
Bernhard Ertl
Günther Hirschmann
Thomas Dr. Reiners
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 EP0866646A2 publication Critical patent/EP0866646A2/en
Publication of EP0866646A3 publication Critical patent/EP0866646A3/en
Withdrawn legal-status Critical Current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
    • H05B41/36—Controlling
    • 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
    • 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
    • H05B41/40—Controlling the intensity of light discontinuously
    • H05B41/42—Controlling the intensity of light discontinuously in two steps only

Abstract

Das erfindungsgemäße Betriebsverfahren für die mindestens eine Entladungslampe zeichnet sich dadurch aus, daß die Entladungslampe (LP), vorzugsweise eine Neongasentladungslampe, zur Erzeugung eines Schlußlichtes mit einer ersten, geringeren elektrischen Leistung und zur Erzeugung eines Signallichtes, vorzugsweise eines Bremslichtes, mit einer zweiten, höheren elektrischen Leistung betrieben wird. Realisiert wird dieses Betriebsverfahren mittels eines Spannungswandlers (T1, T2), der die Kfz-Bordnetzspannung in eine mittelfrequente Wechselspannung hochtransformiert. Die Ausregelung von Bordnetzspannungsänderungen und die Leistungsregelung der Lampe erfolgen durch die Methode der Pulsweiten-Modulation. Zu diesem Zweck weist die erfindungsgemäße Schaltungsanordnung einen Regelkreis mit einer Ansteuerungsvorrichtung (IC) für den Spannungswandler (T1, T2), einem Operationsverstärker (OP), einen mittels eines elektronischen Schalters (T3) zwischen zwei Einstellungen umschaltbaren Spannungsteiler (R21, R20) auf. Zum Wechsel zwischen dem Schlußlicht- und dem Signallichtbetrieb wird der im Regelkreis wirksame Spannungsteilerwiderstand mittels des elektronischen Schalters (T3) umgeschaltet.

Figure 00000001
The operating method according to the invention for the at least one discharge lamp is characterized in that the discharge lamp (LP), preferably a neon gas discharge lamp, for generating a tail light with a first, lower electrical power and for generating a signal light, preferably a brake light, with a second, higher one electrical power is operated. This operating method is implemented by means of a voltage converter (T1, T2), which transforms the vehicle electrical system voltage into a medium-frequency AC voltage. The regulation of vehicle electrical system voltage changes and the power regulation of the lamp are carried out by the method of pulse width modulation. For this purpose, the circuit arrangement according to the invention has a control circuit with a control device (IC) for the voltage converter (T1, T2), an operational amplifier (OP), and a voltage divider (R21, R20) which can be switched between two settings by means of an electronic switch (T3). To switch between tail light and signal light operation, the voltage divider resistor in the control loop is switched by means of the electronic switch (T3).
Figure 00000001
EP98103764A 1997-03-18 1998-03-04 Process and circuit for operating at least one discharge lamp Withdrawn EP0866646A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19711183A DE19711183A1 (en) 1997-03-18 1997-03-18 Method and circuit arrangement for operating at least one discharge lamp
DE19711183 1997-03-18

Publications (2)

Publication Number Publication Date
EP0866646A2 EP0866646A2 (en) 1998-09-23
EP0866646A3 true EP0866646A3 (en) 2000-05-31

Family

ID=7823738

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98103764A Withdrawn EP0866646A3 (en) 1997-03-18 1998-03-04 Process and circuit for operating at least one discharge lamp

Country Status (6)

Country Link
US (1) US6411040B1 (en)
EP (1) EP0866646A3 (en)
JP (1) JPH10270190A (en)
CA (1) CA2232328A1 (en)
DE (1) DE19711183A1 (en)
HU (1) HU219249B (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6204614B1 (en) 1999-05-07 2001-03-20 Philips Electronics North America Corporation Bi-level output electronic high intensity discharge (HID) ballast system
FR2806247B1 (en) * 2000-03-10 2002-05-31 Renault METHOD FOR CONTROLLING A DEVICE FOR SUPPLYING A DISCHARGE LAMP
IT249530Y1 (en) * 2000-06-02 2003-05-19 Fioravanti Srl LIGHTING DEVICE FOR MOTOR VEHICLES.
US6784867B1 (en) * 2000-11-16 2004-08-31 Koninklijke Philips Electronics N.V. Voltage-fed push LLC resonant LCD backlighting inverter circuit
DE10160790A1 (en) * 2001-01-12 2002-08-08 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Circuit for switching on sub-circuitry, e.g. for lamp starter circuit, has additional diode connected in series and in same orientation as two diodes
US6570344B2 (en) * 2001-05-07 2003-05-27 O2Micro International Limited Lamp grounding and leakage current detection system
JP4279033B2 (en) * 2003-04-07 2009-06-17 三菱電機株式会社 Discharge lamp lighting device for in-vehicle headlights
US7218063B2 (en) * 2005-05-27 2007-05-15 Osram Sylvania, Inc. Two light level ballast
DE102006059389A1 (en) * 2006-12-15 2008-06-19 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Half-night circuit interface for an electronic ballast
JP2008275978A (en) * 2007-05-01 2008-11-13 Funai Electric Co Ltd Liquid crystal display and liquid crystal television
US8604709B2 (en) 2007-07-31 2013-12-10 Lsi Industries, Inc. Methods and systems for controlling electrical power to DC loads
US8903577B2 (en) 2009-10-30 2014-12-02 Lsi Industries, Inc. Traction system for electrically powered vehicles
US7598683B1 (en) 2007-07-31 2009-10-06 Lsi Industries, Inc. Control of light intensity using pulses of a fixed duration and frequency
US7446488B1 (en) 2007-08-29 2008-11-04 Osram Sylvania Metal halide lamp ballast controlled by remote enable switched bias supply
US20090200964A1 (en) * 2008-02-08 2009-08-13 King Ray J Methods And Apparatus For Dimmable Ballasts With A High Power Factor
US20090200952A1 (en) * 2008-02-08 2009-08-13 Purespectrum, Inc. Methods and apparatus for dimming light sources
US20090200953A1 (en) * 2008-02-08 2009-08-13 Ray James King Methods and apparatus for a high power factor ballast having high efficiency during normal operation and during dimming
US20090200951A1 (en) * 2008-02-08 2009-08-13 Purespectrum, Inc. Methods and Apparatus for Dimming Light Sources
DE102008016752A1 (en) * 2008-03-31 2009-10-01 Tridonicatco Schweiz Ag Detection of the occupation of a connection of a control gear for lamps
US20100225239A1 (en) * 2009-03-04 2010-09-09 Purespectrum, Inc. Methods and apparatus for a high power factor, high efficiency, dimmable, rapid starting cold cathode lighting ballast
US20100176733A1 (en) * 2009-01-14 2010-07-15 Purespectrum, Inc. Automated Dimming Methods and Systems For Lighting
DE102010043725A1 (en) * 2010-11-10 2012-05-10 Osram Ag Method for operating a high-pressure discharge lamp and device for operating a high-pressure discharge lamp

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2059693A (en) * 1979-10-05 1981-04-23 Werner K H J Vehicle power supplies
EP0449667A2 (en) * 1990-03-30 1991-10-02 Bertonee Inc Digital controller for gas discharge tube
EP0488002A1 (en) * 1990-11-29 1992-06-03 Holzer, Walter, Senator h.c. Dr.h.c.Ing. Process and device for operating discharge lamps through electronic ballasts
JPH06283282A (en) * 1993-03-26 1994-10-07 Matsushita Electric Works Ltd Vehicular headlamp lighting device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4322715A (en) * 1980-06-05 1982-03-30 Moon Charles G Automotive light circuit
US5491387A (en) * 1992-06-29 1996-02-13 Kansei Corporation Discharge lamp lighting circuit for increasing electric power fed in initial lighting of the lamp
US5523655A (en) * 1994-08-31 1996-06-04 Osram Sylvania Inc. Neon fluorescent lamp and method of operating

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2059693A (en) * 1979-10-05 1981-04-23 Werner K H J Vehicle power supplies
EP0449667A2 (en) * 1990-03-30 1991-10-02 Bertonee Inc Digital controller for gas discharge tube
EP0488002A1 (en) * 1990-11-29 1992-06-03 Holzer, Walter, Senator h.c. Dr.h.c.Ing. Process and device for operating discharge lamps through electronic ballasts
JPH06283282A (en) * 1993-03-26 1994-10-07 Matsushita Electric Works Ltd Vehicular headlamp lighting device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 01 28 February 1995 (1995-02-28) *

Also Published As

Publication number Publication date
US6411040B1 (en) 2002-06-25
CA2232328A1 (en) 1998-09-18
HUP9800595A3 (en) 2000-03-28
HU219249B (en) 2001-03-28
HU9800595D0 (en) 1998-05-28
EP0866646A2 (en) 1998-09-23
JPH10270190A (en) 1998-10-09
HUP9800595A2 (en) 1998-10-28
DE19711183A1 (en) 1998-09-24

Similar Documents

Publication Publication Date Title
EP0866646A3 (en) Process and circuit for operating at least one discharge lamp
DE2906946A1 (en) AUTOMATIC MODULATION CONTROL DEVICE
DE2601922B2 (en) Electronic doorbell
ATE250320T1 (en) METHOD AND ARRANGEMENT FOR OPERATING ELECTRONIC BALLASTS FOR HIGH-INTENSITY DISCHARGE LAMPS
ATE354208T1 (en) CIRCUIT ARRANGEMENT FOR MONITORING AN ELECTRONIC SWITCH PROVIDED FOR CONTROLLING A LOAD
DE59709385D1 (en) Method and device for regulating the DC offset of a converter
DE4025939C2 (en) Circuit arrangement for starting and controlling the brightness of a fluorescent lamp during operation
EP1654523A1 (en) Device for the uv treatment of fluid streams
DE4439812A1 (en) Device for operating a gas discharge lamp
EP1202612A2 (en) Lighting system with improved preheating of discharge lamps
EP0329967A1 (en) Digital switch amplifier
EP0808084A3 (en) Safety shutdown in case of asymmetrical power consumption
EP0212740A3 (en) Apparatus for starting and operating gas discharge lamps
ATE163769T1 (en) DEVICE FOR DISPLAYING THE VOLTAGE OF A CONDUCTOR OF A HIGH VOLTAGE POWER SUPPLY SYSTEM
ATE353161T1 (en) ELECTRICAL CIRCUIT ARRANGEMENT FOR REPORTING CONDITION INFORMATION, IN PARTICULAR FOR RAILWAY MATERIAL, AND SYSTEM COMPRISING SUCH A DEVICE
EP1424880A3 (en) Device for operating discharge lamps
WO1996008123A2 (en) Electronic h.f. dimmer for high voltage and low voltage incandescent lamps
DE102006003446A1 (en) Ohm resistive load e.g. halogen lamp, energizing circuit, has voltage ripple determining device determining ripple at divider and generating signal from ripple, where signal denotes electrical power that is transferred to load
DE19909950A1 (en) Device for displaying a message with a light emitting diode
ATE267723T1 (en) SAFETY DEVICE FOR AN ELECTRICAL OVERHEAD CABLE FOR POWERING TRANSPORT VEHICLES AND METHOD FOR OPERATING THIS DEVICE
EP0793159A3 (en) Circuit for generation of a supply voltage
EP1132747A3 (en) High voltage testing device
DE306855C (en)
EP0702350A3 (en) Driving circuit for a soundpulse source
DE2941466A1 (en) INSTRUMENT SYSTEM FOR PROCESS MEASUREMENT AND CONTROL

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE DE ES FR GB IT NL SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RIC1 Information provided on ipc code assigned before grant

Free format text: 7H 05B 41/42 A, 7H 05B 41/29 B

17P Request for examination filed

Effective date: 20000801

AKX Designation fees paid

Free format text: BE DE ES FR GB IT NL SE

17Q First examination report despatched

Effective date: 20020822

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20040129