EP0673184A3 - Fluorescent lamp power supply and control circuit for wide range operation. - Google Patents

Fluorescent lamp power supply and control circuit for wide range operation. Download PDF

Info

Publication number
EP0673184A3
EP0673184A3 EP95103762A EP95103762A EP0673184A3 EP 0673184 A3 EP0673184 A3 EP 0673184A3 EP 95103762 A EP95103762 A EP 95103762A EP 95103762 A EP95103762 A EP 95103762A EP 0673184 A3 EP0673184 A3 EP 0673184A3
Authority
EP
European Patent Office
Prior art keywords
power supply
control circuit
wide range
fluorescent lamp
lamp power
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.)
Granted
Application number
EP95103762A
Other languages
German (de)
French (fr)
Other versions
EP0673184B1 (en
EP0673184A2 (en
Inventor
James M Williams
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.)
Linear Technology LLC
Original Assignee
Linear Technology LLC
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 Linear Technology LLC filed Critical Linear Technology LLC
Publication of EP0673184A2 publication Critical patent/EP0673184A2/en
Publication of EP0673184A3 publication Critical patent/EP0673184A3/en
Application granted granted Critical
Publication of EP0673184B1 publication Critical patent/EP0673184B1/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
    • H05B41/282—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
    • H05B41/2821—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 by means of a single-switch converter or a parallel push-pull converter in the final stage
    • H05B41/2824—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 by means of a single-switch converter or a parallel push-pull converter in the final stage using control circuits for the switching element
    • 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
    • H05B41/3925—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by frequency variation
EP19950103762 1994-03-16 1995-03-15 Fluorescent lamp power supply and control circuit for wide range operation Expired - Lifetime EP0673184B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US21386594A 1994-03-16 1994-03-16
US213865 1994-03-16

Publications (3)

Publication Number Publication Date
EP0673184A2 EP0673184A2 (en) 1995-09-20
EP0673184A3 true EP0673184A3 (en) 1996-08-28
EP0673184B1 EP0673184B1 (en) 2004-10-27

Family

ID=22796816

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19950103762 Expired - Lifetime EP0673184B1 (en) 1994-03-16 1995-03-15 Fluorescent lamp power supply and control circuit for wide range operation

Country Status (3)

Country Link
EP (1) EP0673184B1 (en)
JP (1) JPH0855691A (en)
DE (1) DE69533681D1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19733939A1 (en) * 1997-08-06 1999-02-11 Mannesmann Vdo Ag Fluorescent lamp dimming circuit
WO1998048597A1 (en) 1997-04-24 1998-10-29 Mannesmann Vdo Ag Circuitry for dimming a fluorescent lamp
US6107751A (en) * 1998-12-01 2000-08-22 Billings; Keith Current fed, parallel resonant ballast
DE10254983A1 (en) * 2002-11-26 2004-06-03 Robert Bosch Gmbh Electrical circuit for controlling several discharge tubes
CN101675714A (en) * 2007-03-08 2010-03-17 Cp环境技术有限公司 Improved lighting apparatus
CN102448235B (en) * 2010-10-13 2013-12-11 硕颉科技股份有限公司 Device and method for driving fluorescent lamp tube
ITBO20120672A1 (en) * 2012-12-17 2014-06-18 Schneider Electric Ind Italia S P A POWER OSCILLATOR CIRCUIT FOR LIGHTING SOURCES AND OTHER EQUIVALENT ELECTRIC USERS

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4920302A (en) * 1987-01-27 1990-04-24 Zenith Electronics Corporation Fluorescent lamp power supply
US5001386A (en) * 1989-12-22 1991-03-19 Lutron Electronics Co., Inc. Circuit for dimming gas discharge lamps without introducing striations

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4920302A (en) * 1987-01-27 1990-04-24 Zenith Electronics Corporation Fluorescent lamp power supply
US5001386A (en) * 1989-12-22 1991-03-19 Lutron Electronics Co., Inc. Circuit for dimming gas discharge lamps without introducing striations
US5001386B1 (en) * 1989-12-22 1996-10-15 Lutron Electronics Co Circuit for dimming gas discharge lamps without introducing striations

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WILLIAMS J: "LCD-HINTERLEUCHTUNG MIT HOHEM WIRKUNGSGRAD SCHALTREGLER-IC STEUERT GEGENTAKTWANDLER", ELEKTRONIK, vol. 42, no. 4, 23 February 1993 (1993-02-23), pages 82 - 84, XP000342592 *

Also Published As

Publication number Publication date
DE69533681D1 (en) 2004-12-02
JPH0855691A (en) 1996-02-27
EP0673184B1 (en) 2004-10-27
EP0673184A2 (en) 1995-09-20

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