ES2163903T3 - PROCEDURE FOR DETECTION OF CHANGE OF LAMPS AND ELECTRONIC REACTANCE OF POWER SUPPLY FOR THE OPERATION OF GAS DISCHARGE LAMPS WITH HELP OF A PROCEDURE OF THIS CLASS FOR THE DETECTION OF LAMP CHANGE. - Google Patents

PROCEDURE FOR DETECTION OF CHANGE OF LAMPS AND ELECTRONIC REACTANCE OF POWER SUPPLY FOR THE OPERATION OF GAS DISCHARGE LAMPS WITH HELP OF A PROCEDURE OF THIS CLASS FOR THE DETECTION OF LAMP CHANGE.

Info

Publication number
ES2163903T3
ES2163903T3 ES98962359T ES98962359T ES2163903T3 ES 2163903 T3 ES2163903 T3 ES 2163903T3 ES 98962359 T ES98962359 T ES 98962359T ES 98962359 T ES98962359 T ES 98962359T ES 2163903 T3 ES2163903 T3 ES 2163903T3
Authority
ES
Spain
Prior art keywords
procedure
detection
change
lamps
lamp
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.)
Expired - Lifetime
Application number
ES98962359T
Other languages
Spanish (es)
Inventor
Norbert Primisser
Reinhard Bockle
Stefan Koch
Stefan Rhyner
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.)
Tridonic Bauelemente GmbH
Original Assignee
Tridonic Bauelemente GmbH
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 Tridonic Bauelemente GmbH filed Critical Tridonic Bauelemente GmbH
Application granted granted Critical
Publication of ES2163903T3 publication Critical patent/ES2163903T3/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
    • 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)
  • Telephone Set Structure (AREA)

Abstract

The invention relates to a method for detecting a change of gas-discharge lamp and to an electronic lamp ballast with such a method is used. To detect a lamp change a supply voltage of a certain frequency is applied to a load circuit (E) to which at least one gas-discharge lamp (G1, G2) is connected. The transient response of the load circuit (E) is monitored which is set in line with the supply voltage of a certain frequency being applied. On the basis of the transient response it is determined whether one of the gas-discharge lamps connected to the load circuit (E) has been cut off or whether all gas-discharge lamps (G1, G2) are correctly connected to said load circuit (E).
ES98962359T 1997-12-23 1998-11-19 PROCEDURE FOR DETECTION OF CHANGE OF LAMPS AND ELECTRONIC REACTANCE OF POWER SUPPLY FOR THE OPERATION OF GAS DISCHARGE LAMPS WITH HELP OF A PROCEDURE OF THIS CLASS FOR THE DETECTION OF LAMP CHANGE. Expired - Lifetime ES2163903T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19757668 1997-12-23

Publications (1)

Publication Number Publication Date
ES2163903T3 true ES2163903T3 (en) 2002-02-01

Family

ID=7853258

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98962359T Expired - Lifetime ES2163903T3 (en) 1997-12-23 1998-11-19 PROCEDURE FOR DETECTION OF CHANGE OF LAMPS AND ELECTRONIC REACTANCE OF POWER SUPPLY FOR THE OPERATION OF GAS DISCHARGE LAMPS WITH HELP OF A PROCEDURE OF THIS CLASS FOR THE DETECTION OF LAMP CHANGE.

Country Status (7)

Country Link
EP (1) EP1040732B1 (en)
AT (1) ATE205359T1 (en)
AU (1) AU1755599A (en)
DE (1) DE59801412D1 (en)
ES (1) ES2163903T3 (en)
WO (1) WO1999034649A1 (en)
ZA (1) ZA9811776B (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH663508A5 (en) * 1983-09-06 1987-12-15 Knobel Elektro App ELECTRONIC CONTROLLER FOR FLUORESCENT LAMPS AND METHOD FOR THE OPERATION THEREOF.
DE3805510A1 (en) * 1988-02-22 1989-08-31 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh CIRCUIT ARRANGEMENT FOR OPERATING A LOW-PRESSURE DISCHARGE LAMP
US5495149A (en) * 1993-05-20 1996-02-27 Matsushita Electric Works, Ltd. Power supply
ATE194749T1 (en) * 1994-04-15 2000-07-15 Knobel Lichttech BALLAST WITH LAMP CHANGE DETECTION FOR DISCHARGE LAMPS
TW266383B (en) * 1994-07-19 1995-12-21 Siemens Ag Method of starting at least one fluorescent lamp by an electronic ballast and the electronic ballast used therefor
US5650694A (en) * 1995-03-31 1997-07-22 Philips Electronics North America Corporation Lamp controller with lamp status detection and safety circuitry

Also Published As

Publication number Publication date
EP1040732B1 (en) 2001-09-05
EP1040732A1 (en) 2000-10-04
ZA9811776B (en) 1999-07-08
AU1755599A (en) 1999-07-19
ATE205359T1 (en) 2001-09-15
DE59801412D1 (en) 2001-10-11
WO1999034649A1 (en) 1999-07-08

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