DE29609839U1 - Fluorescent ballast - Google Patents

Fluorescent ballast

Info

Publication number
DE29609839U1
DE29609839U1 DE29609839U DE29609839U DE29609839U1 DE 29609839 U1 DE29609839 U1 DE 29609839U1 DE 29609839 U DE29609839 U DE 29609839U DE 29609839 U DE29609839 U DE 29609839U DE 29609839 U1 DE29609839 U1 DE 29609839U1
Authority
DE
Germany
Prior art keywords
fluorescent ballast
ballast
fluorescent
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
DE29609839U
Other languages
German (de)
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.)
Trilux GmbH and Co KG
Original Assignee
Trilux Lenze GmbH and 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 Trilux Lenze GmbH and Co KG filed Critical Trilux Lenze GmbH and Co KG
Priority to DE29609839U priority Critical patent/DE29609839U1/en
Publication of DE29609839U1 publication Critical patent/DE29609839U1/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
    • 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
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H05B41/3927—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by pulse width modulation
DE29609839U 1996-06-04 1996-06-04 Fluorescent ballast Expired - Lifetime DE29609839U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29609839U DE29609839U1 (en) 1996-06-04 1996-06-04 Fluorescent ballast

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29609839U DE29609839U1 (en) 1996-06-04 1996-06-04 Fluorescent ballast

Publications (1)

Publication Number Publication Date
DE29609839U1 true DE29609839U1 (en) 1996-08-22

Family

ID=8024743

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29609839U Expired - Lifetime DE29609839U1 (en) 1996-06-04 1996-06-04 Fluorescent ballast

Country Status (1)

Country Link
DE (1) DE29609839U1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3805159A1 (en) * 1988-02-16 1989-08-24 Semperlux Gmbh Electronic ballast device
EP0439240A2 (en) * 1990-01-20 1991-07-31 SEMPERLUX GmbH, LICHTTECHNISCHES WERK Electronic ballast
DE4219958C1 (en) * 1992-06-18 1993-06-24 Trilux-Lenze Gmbh + Co Kg, 5760 Arnsberg, De Ballast circuit for discharge lamp - uses phase gate control to short out electrodes for interval in each half cycle, depending on brightness
DE4228641A1 (en) * 1992-08-28 1994-03-03 Tridonic Bauelemente Gmbh Dorn Ballast for a gas discharge lamp with an inverter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3805159A1 (en) * 1988-02-16 1989-08-24 Semperlux Gmbh Electronic ballast device
EP0439240A2 (en) * 1990-01-20 1991-07-31 SEMPERLUX GmbH, LICHTTECHNISCHES WERK Electronic ballast
DE4219958C1 (en) * 1992-06-18 1993-06-24 Trilux-Lenze Gmbh + Co Kg, 5760 Arnsberg, De Ballast circuit for discharge lamp - uses phase gate control to short out electrodes for interval in each half cycle, depending on brightness
DE4228641A1 (en) * 1992-08-28 1994-03-03 Tridonic Bauelemente Gmbh Dorn Ballast for a gas discharge lamp with an inverter

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 19961002

R163 Identified publications notified

Effective date: 19961018

R150 Term of protection extended to 6 years

Effective date: 19991026

R079 Amendment of ipc main class

Free format text: PREVIOUS MAIN CLASS: H05B0041392000

Ipc: H05B0041320000

R157 Lapse of ip right after 6 years

Effective date: 20021231