FI101186B1 - Electronic ballast with thermal protection circuit - Google Patents

Electronic ballast with thermal protection circuit

Info

Publication number
FI101186B1
FI101186B1 FI965024A FI965024A FI101186B1 FI 101186 B1 FI101186 B1 FI 101186B1 FI 965024 A FI965024 A FI 965024A FI 965024 A FI965024 A FI 965024A FI 101186 B1 FI101186 B1 FI 101186B1
Authority
FI
Finland
Prior art keywords
protection circuit
thermal protection
electronic ballast
ballast
electronic
Prior art date
Application number
FI965024A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI965024A0 (en
FI101186B (en
Inventor
Harri Naakka
Original Assignee
Helvar Oy
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 Helvar Oy filed Critical Helvar Oy
Priority to FI965024A priority Critical patent/FI101186B/en
Publication of FI965024A0 publication Critical patent/FI965024A0/en
Priority to EP19970660142 priority patent/EP0848580B1/en
Priority to DE1997602588 priority patent/DE69702588T2/en
Application granted granted Critical
Publication of FI101186B1 publication Critical patent/FI101186B1/en
Publication of FI101186B publication Critical patent/FI101186B/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
    • H05B41/282—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
    • H05B41/285—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2851—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • H05B41/2856—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against internal abnormal circuit 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
    • H05B41/26—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
    • H05B41/282—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
    • H05B41/285—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2851—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • H05B41/2855—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against abnormal lamp operating conditions
FI965024A 1996-12-16 1996-12-16 Electronic connection device provided with heat protection circuit FI101186B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FI965024A FI101186B (en) 1996-12-16 1996-12-16 Electronic connection device provided with heat protection circuit
EP19970660142 EP0848580B1 (en) 1996-12-16 1997-12-11 Electronic ballast provided with a thermal safety circuit
DE1997602588 DE69702588T2 (en) 1996-12-16 1997-12-11 Electronic ballast with thermal protection circuit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI965024A FI101186B (en) 1996-12-16 1996-12-16 Electronic connection device provided with heat protection circuit
FI965024 1996-12-16

Publications (3)

Publication Number Publication Date
FI965024A0 FI965024A0 (en) 1996-12-16
FI101186B1 true FI101186B1 (en) 1998-04-30
FI101186B FI101186B (en) 1998-04-30

Family

ID=8547273

Family Applications (1)

Application Number Title Priority Date Filing Date
FI965024A FI101186B (en) 1996-12-16 1996-12-16 Electronic connection device provided with heat protection circuit

Country Status (3)

Country Link
EP (1) EP0848580B1 (en)
DE (1) DE69702588T2 (en)
FI (1) FI101186B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1309255B1 (en) * 1999-05-18 2002-01-16 Cee Electra S R L ELECTRICAL LIGHT SOURCE, CONTROL AND COMMAND DEVICE
DE102005025154A1 (en) 2005-06-01 2006-12-07 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Circuit arrangement for operating a discharge lamp with temperature compensation
US7817453B2 (en) * 2007-08-27 2010-10-19 General Electric Company Thermal foldback for linear fluorescent lamp ballasts
DE102011103638A1 (en) * 2011-06-08 2012-12-13 Tridonic Gmbh & Co. Kg Method for operating an electronic ballast for a lamp and electronic ballast

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4282462A (en) * 1979-10-16 1981-08-04 General Electric Company Arc lamp lighting unit with means to prevent prolonged application of starting potentials
EP0146683B1 (en) * 1981-07-31 1987-11-19 Siemens Aktiengesellschaft Dc-ac conventer
DD264564B5 (en) * 1987-10-02 1994-04-07 Narva Gluehlampen CIRCUIT ARRANGEMENT FOR THE APPLICATION AND OPERATION OF A LOW PRESSURE DISCHARGE LAMP
DE4300399A1 (en) * 1993-01-09 1994-07-14 Hueco Gmbh Fabrik Fuer Elektro Hf operation circuit for fluorescent lamp
US5483125A (en) * 1993-12-06 1996-01-09 General Electric Company Ballast circuit for a gas discharge lamp having a cathode pre-heat arrangement

Also Published As

Publication number Publication date
DE69702588T2 (en) 2001-04-19
EP0848580B1 (en) 2000-07-19
FI965024A0 (en) 1996-12-16
FI101186B (en) 1998-04-30
DE69702588D1 (en) 2000-08-24
EP0848580A1 (en) 1998-06-17

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Legal Events

Date Code Title Description
FG Patent granted

Owner name: OY HELVAR