EP1336975A3 - Bar core transformer and lamp base comprising it - Google Patents

Bar core transformer and lamp base comprising it Download PDF

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Publication number
EP1336975A3
EP1336975A3 EP03002845A EP03002845A EP1336975A3 EP 1336975 A3 EP1336975 A3 EP 1336975A3 EP 03002845 A EP03002845 A EP 03002845A EP 03002845 A EP03002845 A EP 03002845A EP 1336975 A3 EP1336975 A3 EP 1336975A3
Authority
EP
European Patent Office
Prior art keywords
transformer
core transformer
pressure discharge
lamp base
bar core
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Withdrawn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
EP03002845A
Other languages
German (de)
French (fr)
Other versions
EP1336975A2 (en
Inventor
Matthias Burkhardt
Herbert Maurizio Cardarelli
Bernhard Röllgen
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.)
TDK Electronics AG
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Epcos AG
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, Epcos AG filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP1336975A2 publication Critical patent/EP1336975A2/en
Publication of EP1336975A3 publication Critical patent/EP1336975A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • 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
    • H05B41/02—Details
    • H05B41/04—Starting switches
    • H05B41/042—Starting switches using semiconductor devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/08—High-leakage transformers or inductances
    • H01F38/10—Ballasts, e.g. for discharge lamps

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

Die Erfindung betrifft einen Stabkerntransformator zur Verwendung als Zündtransformator in dem Sockel einer Hochdruckentladungslampe für einen Kraftfahrzeugscheinwerfer. Erfindungsgemäß besitzt der Stabkerntransformator mindestens zwei stabförmige, nebeneinander angeordnete Kerne (2, 3), auf die jeweils eine mehrlagig ausgebildete Sekundärwicklung (4, 5) gewickelt ist, wobei die Lagen (4a, 4b, 4c, 4d) bzw. (5a, 5b, 5c, 5d) parallel geschaltet und ohne Versatz übereinander angeordnet sind. Außerdem sind die Sekundärwicklungen (4, 5) elektrisch leitend miteinander verbunden, wobei ihr Gesamtwiderstand höchstens 2Ω beträgt. Der erfindungsgemäße Transformator eignet sich besonders gut als Zündtransformator für Hochdruckentladungslampen mit geringer Brennspannung, wie zum Beispiel quecksilberfreie Halogen-Metalldampf-Hochdruckentladungslampen.

Figure 00000001
The invention relates to a rod core transformer for use as an ignition transformer in the base of a high-pressure discharge lamp for a motor vehicle headlight. According to the invention, the rod core transformer has at least two rod-shaped cores (2, 3) arranged side by side, on each of which a secondary winding (4, 5) having several layers is wound, the layers (4a, 4b, 4c, 4d) and (5a, 5b , 5c, 5d) are connected in parallel and arranged one above the other without offset. In addition, the secondary windings (4, 5) are electrically conductively connected to each other, their total resistance is at most 2Ω. The transformer according to the invention is particularly suitable as ignition transformer for high-pressure discharge lamps with low burning voltage, such as mercury-free metal halide high-pressure discharge lamps.
Figure 00000001
EP03002845A 2002-02-14 2003-02-07 Bar core transformer and lamp base comprising it Withdrawn EP1336975A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10206180 2002-02-14
DE10206180A DE10206180A1 (en) 2002-02-14 2002-02-14 Rod core transformer and lamp base with rod core transformer

Publications (2)

Publication Number Publication Date
EP1336975A2 EP1336975A2 (en) 2003-08-20
EP1336975A3 true EP1336975A3 (en) 2005-01-05

Family

ID=27618699

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03002845A Withdrawn EP1336975A3 (en) 2002-02-14 2003-02-07 Bar core transformer and lamp base comprising it

Country Status (8)

Country Link
US (1) US6741156B2 (en)
EP (1) EP1336975A3 (en)
JP (1) JP2003264112A (en)
KR (1) KR20030068464A (en)
CN (1) CN1256740C (en)
CA (1) CA2418747A1 (en)
DE (1) DE10206180A1 (en)
TW (1) TWI294130B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1352547B1 (en) * 2000-12-19 2005-02-16 VOGT electronic AG Gas discharge lamp base comprising an ignition device
DE602004012416T2 (en) * 2004-10-19 2009-03-05 Osram Gesellschaft mit beschränkter Haftung Insulating arrangement for electrical components
US20060291216A1 (en) * 2005-06-14 2006-12-28 Blumel Daniel M Apparatus for reducing in size an igniter circuit and assembly
DE102005035745A1 (en) * 2005-07-29 2007-02-01 Siemens Ag Discharge lamp e.g. video and projection lamp, igniting device, has coupling unit inductively coupling primary voltage pulse in ignition circuit and including voltage transmission ratio that is selected from certain range
DE102005038043A1 (en) * 2005-08-09 2007-02-15 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Lamp base for a high-pressure discharge lamp and high-pressure discharge lamp
DE202013000831U1 (en) 2013-01-21 2013-02-14 Osram Gmbh transformer
CN113871194B (en) * 2021-09-30 2024-01-12 中国人民解放军国防科技大学 Combined insulation method of high-voltage pulse transformer and high-voltage pulse transformer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000059269A1 (en) * 1999-03-26 2000-10-05 Vogt Electronic Ag Base of an electric discharge lamp with an ignition device
EP1137017A2 (en) * 2000-03-22 2001-09-26 Minebea Co., Ltd. Inverter Transformer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03167808A (en) * 1989-11-28 1991-07-19 Victor Co Of Japan Ltd Flyback transformer
US5072158A (en) * 1990-10-16 1991-12-10 Ilc Technology, Inc. Silent lamp igniter
DE69610049T2 (en) * 1995-03-01 2001-04-12 Koninkl Philips Electronics Nv CIRCUIT ARRANGEMENT FOR IGNITING A HIGH PRESSURE GAS DISCHARGE LAMP
SE9702217L (en) * 1997-06-10 1998-12-11 Ultralux Ab Ignition transformer for gas discharge lamps
DE19962368C1 (en) * 1999-12-23 2001-09-13 Daimler Chrysler Ag Rod ignition transformer for internal combustion engines

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000059269A1 (en) * 1999-03-26 2000-10-05 Vogt Electronic Ag Base of an electric discharge lamp with an ignition device
EP1137017A2 (en) * 2000-03-22 2001-09-26 Minebea Co., Ltd. Inverter Transformer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 0154, no. 08 (E - 1123) 17 October 1991 (1991-10-17) *

Also Published As

Publication number Publication date
EP1336975A2 (en) 2003-08-20
TWI294130B (en) 2008-03-01
CN1256740C (en) 2006-05-17
DE10206180A1 (en) 2003-08-28
JP2003264112A (en) 2003-09-19
CA2418747A1 (en) 2003-08-14
TW200304661A (en) 2003-10-01
US6741156B2 (en) 2004-05-25
US20030151375A1 (en) 2003-08-14
KR20030068464A (en) 2003-08-21
CN1438661A (en) 2003-08-27

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