FI20065033A0 - Electronic ballast for fluorescent lamps - Google Patents

Electronic ballast for fluorescent lamps

Info

Publication number
FI20065033A0
FI20065033A0 FI20065033A FI20065033A FI20065033A0 FI 20065033 A0 FI20065033 A0 FI 20065033A0 FI 20065033 A FI20065033 A FI 20065033A FI 20065033 A FI20065033 A FI 20065033A FI 20065033 A0 FI20065033 A0 FI 20065033A0
Authority
FI
Finland
Prior art keywords
lamp
1pri
inductor
transformer primary
electronic ballast
Prior art date
Application number
FI20065033A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20065033L (en
Inventor
Hannu Vihinen
Original Assignee
Heivar Oy Ab
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=35883931&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI20065033(A0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Heivar Oy Ab filed Critical Heivar Oy Ab
Priority to FI20065033A priority Critical patent/FI20065033L/en
Publication of FI20065033A0 publication Critical patent/FI20065033A0/en
Priority to EP07397003A priority patent/EP1811817B1/en
Priority to DE602007001900T priority patent/DE602007001900D1/en
Priority to AT07397003T priority patent/ATE439757T1/en
Publication of FI20065033L publication Critical patent/FI20065033L/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

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connecting Device With Holders (AREA)

Abstract

The invention relates to an electronic ballast for a fluorescent lamp, the lamp load circuit being connected between the inverter power switch devices (Q 1 , Q 2 ). The lamp load circuit comprises an inductor (L 1pri ) and a capacitor (C 1 ) in a series connection with the lamp. The inductor (L 1pri ) is cofunctionally complemented with a secondary inductor (L 1sec ) that is connected to the same circuit with the transformer primary winding (T 1pri ) for supplying the heating current energy from the secondary inductor (L 1sec ) to the transformer primary winding (T 1pri ). The secondary windings (T 1secA , T 1secB ) are connected to the lamp cathodes. The transformer primary circuit incorporates a control device (Q 3 ) for varying the heating current under an active control dependent on the desired lamp intensity level.
FI20065033A 2006-01-18 2006-01-18 Electronic connection device for fluorescent tubes FI20065033L (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FI20065033A FI20065033L (en) 2006-01-18 2006-01-18 Electronic connection device for fluorescent tubes
EP07397003A EP1811817B1 (en) 2006-01-18 2007-01-05 Electronic ballast for fluorescent lamp
DE602007001900T DE602007001900D1 (en) 2006-01-18 2007-01-05 Electronic ballast for a fluorescent lamp
AT07397003T ATE439757T1 (en) 2006-01-18 2007-01-05 ELECTRONIC BALLAST FOR A FLUORESCENT LAMP

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20065033A FI20065033L (en) 2006-01-18 2006-01-18 Electronic connection device for fluorescent tubes

Publications (2)

Publication Number Publication Date
FI20065033A0 true FI20065033A0 (en) 2006-01-18
FI20065033L FI20065033L (en) 2007-07-19

Family

ID=35883931

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20065033A FI20065033L (en) 2006-01-18 2006-01-18 Electronic connection device for fluorescent tubes

Country Status (4)

Country Link
EP (1) EP1811817B1 (en)
AT (1) ATE439757T1 (en)
DE (1) DE602007001900D1 (en)
FI (1) FI20065033L (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI108105B (en) 2000-09-20 2001-11-15 Helvar Oy Ab Electronic connection arrangement for a fluorescent tube
DE10252834A1 (en) 2002-11-13 2004-05-27 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Discharge lamp e.g. florescent lamp, operating device, includes decoupling device provided with current control unit for controlling filament current, and a heating transformer unit
DE102004009995A1 (en) 2004-03-01 2005-09-22 Tridonicatco Gmbh & Co. Kg Switching arrangement for operating gas-discharge lamp, has inverter attached to load circuit that is galvanically separated from intermediate circuit that exhibits capacitors for adjusting impedances of intermediate circuit

Also Published As

Publication number Publication date
ATE439757T1 (en) 2009-08-15
EP1811817A1 (en) 2007-07-25
FI20065033L (en) 2007-07-19
DE602007001900D1 (en) 2009-09-24
EP1811817B1 (en) 2009-08-12

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