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ATE240030T1 - ELECTRONIC BALLAST - Google Patents

ELECTRONIC BALLAST

Info

Publication number
ATE240030T1
ATE240030T1 AT98964410T AT98964410T ATE240030T1 AT E240030 T1 ATE240030 T1 AT E240030T1 AT 98964410 T AT98964410 T AT 98964410T AT 98964410 T AT98964410 T AT 98964410T AT E240030 T1 ATE240030 T1 AT E240030T1
Authority
AT
Austria
Prior art keywords
gas
voltage potential
discharge lamp
electronic
operating
Prior art date
Application number
AT98964410T
Other languages
German (de)
Inventor
Norbert Primisser
Reinhard Boeckle
Stefan Koch
Stefan Rhyner
Original Assignee
Tridonicatco Gmbh & Co Kg
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 Tridonicatco Gmbh & Co Kg filed Critical Tridonicatco Gmbh & Co Kg
Application granted granted Critical
Publication of ATE240030T1 publication Critical patent/ATE240030T1/en

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
    • H05B41/2981—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Glass Compositions (AREA)
  • Furan Compounds (AREA)
  • Discharge Heating (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Organic Insulating Materials (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The invention relates to an electronic lamp ballast for operating at least one gas-discharge lamp (G1, G2). The electronic lamp ballast comprises a control circuit (IC2), which monitors a voltage potential applied to the input connection (NP) and, depending on the value of the voltage potential, operates the gas-discharge lamp (G1, G2) with or without preheating. The voltage potential monitored by the control circuit (IC2) can in particular depend on the charge status of an energy storage circuit (R22, C17) which is charged while the gas-discharge lamp (G1, G2) is operating and is discharged at a certain time constant when the electronic lamp ballast is switched off. This allows for dynamic switching between cold-start and warm-start operations.
AT98964410T 1997-12-23 1998-11-19 ELECTRONIC BALLAST ATE240030T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19757667 1997-12-23
PCT/EP1998/007426 WO1999034648A1 (en) 1997-12-23 1998-11-19 Electronic lamp ballast

Publications (1)

Publication Number Publication Date
ATE240030T1 true ATE240030T1 (en) 2003-05-15

Family

ID=7853257

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98964410T ATE240030T1 (en) 1997-12-23 1998-11-19 ELECTRONIC BALLAST

Country Status (7)

Country Link
EP (1) EP1048190B1 (en)
AT (1) ATE240030T1 (en)
AU (1) AU1962499A (en)
DE (1) DE59808310D1 (en)
ES (1) ES2195438T3 (en)
WO (1) WO1999034648A1 (en)
ZA (1) ZA9811774B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10134566A1 (en) * 2001-07-16 2003-02-06 Tridonicatco Gmbh & Co Kg Electronic ballast with preheating mode
DE10206731B4 (en) * 2002-02-18 2016-12-22 Tridonic Gmbh & Co Kg Lamp sensor for a ballast for operating a gas discharge lamp
DE102005042527B4 (en) * 2005-09-07 2015-10-29 Osram Gmbh Circuit arrangement and method for operating a discharge lamp

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1121148B (en) * 1979-06-26 1986-03-26 Siliani Pier IGNITION CIRCUIT FOR FLUORESCENT AND SIMILAR PIPES WITH PRELIMINARY HEATING OF THE FILAMENTS
US4958108A (en) * 1989-02-14 1990-09-18 Avtech Corporation Universal fluorescent lamp ballast
US5030887A (en) * 1990-01-29 1991-07-09 Guisinger John E High frequency fluorescent lamp exciter
DE59209173D1 (en) * 1992-10-28 1998-03-05 Knobel Lichttech Method and circuit arrangement for igniting fluorescent lamps at a predetermined temperature of the lamp cathodes
NL9301694A (en) * 1993-10-01 1995-05-01 Cm Personnel Participation Bv Electronic ballast for gas discharge tubes.
US5424611A (en) * 1993-12-22 1995-06-13 At&T Corp. Method for pre-heating a gas-discharge lamp

Also Published As

Publication number Publication date
EP1048190B1 (en) 2003-05-07
WO1999034648A1 (en) 1999-07-08
ZA9811774B (en) 1999-06-29
EP1048190A1 (en) 2000-11-02
DE59808310D1 (en) 2003-06-12
ES2195438T3 (en) 2003-12-01
AU1962499A (en) 1999-07-19

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