DE69312867T2 - Verbesserungen in einem elektrischen Gerät - Google Patents

Verbesserungen in einem elektrischen Gerät

Info

Publication number
DE69312867T2
DE69312867T2 DE69312867T DE69312867T DE69312867T2 DE 69312867 T2 DE69312867 T2 DE 69312867T2 DE 69312867 T DE69312867 T DE 69312867T DE 69312867 T DE69312867 T DE 69312867T DE 69312867 T2 DE69312867 T2 DE 69312867T2
Authority
DE
Germany
Prior art keywords
electrical device
electrical
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 - Fee Related
Application number
DE69312867T
Other languages
English (en)
Other versions
DE69312867D1 (de
Inventor
Phillip J Rimmer
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.)
Tunewell Technology Ltd
Original Assignee
Tunewell Technology Ltd
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 Tunewell Technology Ltd filed Critical Tunewell Technology Ltd
Publication of DE69312867D1 publication Critical patent/DE69312867D1/de
Application granted granted Critical
Publication of DE69312867T2 publication Critical patent/DE69312867T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H05B41/288—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 without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
    • H05B41/292—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2921—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S315/00—Electric lamp and discharge devices: systems
    • Y10S315/07—Starting and control circuits for gas discharge lamp using transistors
DE69312867T 1992-11-09 1993-11-09 Verbesserungen in einem elektrischen Gerät Expired - Fee Related DE69312867T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929223440A GB9223440D0 (en) 1992-11-09 1992-11-09 Improvements in or relating to an electrical arrangement
US07/973,381 US5394065A (en) 1992-11-09 1992-11-09 Circuit for supplying current to a discharge tube

Publications (2)

Publication Number Publication Date
DE69312867D1 DE69312867D1 (de) 1997-09-11
DE69312867T2 true DE69312867T2 (de) 1998-03-12

Family

ID=26301937

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69312867T Expired - Fee Related DE69312867T2 (de) 1992-11-09 1993-11-09 Verbesserungen in einem elektrischen Gerät

Country Status (5)

Country Link
US (1) US5394065A (de)
EP (1) EP0597661B1 (de)
DE (1) DE69312867T2 (de)
ES (1) ES2108833T3 (de)
GB (1) GB9223440D0 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5489825A (en) * 1992-11-09 1996-02-06 Tunewell Technology Limited Transformer
US5703438A (en) * 1996-01-22 1997-12-30 Valmont Industries, Inc. Line current filter for less than 10% total harmonic distortion
US5814938A (en) * 1996-08-05 1998-09-29 Transfotec International Cold cathode tube power supply
GB2356499B (en) * 1996-11-19 2001-07-11 Micro Tech Ltd Lamp driver circuit and method
GB9701687D0 (en) * 1997-01-28 1997-03-19 Tunewell Technology Ltd Improvements in or relating to an a.c. current distribution system
US6111732A (en) * 1998-04-23 2000-08-29 Transfotec International Ltee Apparatus and method for detecting ground fault
US7187139B2 (en) 2003-09-09 2007-03-06 Microsemi Corporation Split phase inverters for CCFL backlight system
ATE458382T1 (de) 2003-10-06 2010-03-15 Microsemi Corp Stromteilungsschema und einrichtung für mehrfach- ccf-lampenbetrieb
US7468722B2 (en) 2004-02-09 2008-12-23 Microsemi Corporation Method and apparatus to control display brightness with ambient light correction
US7112929B2 (en) 2004-04-01 2006-09-26 Microsemi Corporation Full-bridge and half-bridge compatible driver timing schedule for direct drive backlight system
US7755595B2 (en) 2004-06-07 2010-07-13 Microsemi Corporation Dual-slope brightness control for transflective displays
US7569998B2 (en) 2006-07-06 2009-08-04 Microsemi Corporation Striking and open lamp regulation for CCFL controller
TW200939886A (en) 2008-02-05 2009-09-16 Microsemi Corp Balancing arrangement with reduced amount of balancing transformers
US8093839B2 (en) 2008-11-20 2012-01-10 Microsemi Corporation Method and apparatus for driving CCFL at low burst duty cycle rates
US9030119B2 (en) 2010-07-19 2015-05-12 Microsemi Corporation LED string driver arrangement with non-dissipative current balancer
US8754581B2 (en) 2011-05-03 2014-06-17 Microsemi Corporation High efficiency LED driving method for odd number of LED strings
CN103477712B (zh) 2011-05-03 2015-04-08 美高森美公司 高效led驱动方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1612387A (en) * 1924-11-25 1926-12-28 Raymond R Machlett Ionic-discharge lamp and process of manufacturing same
US2313961A (en) * 1941-10-25 1943-03-16 Westinghouse Electric & Mfg Co Electric discharge lamp circuit
US4859914A (en) * 1985-07-25 1989-08-22 Summa Frank A High frequency energy saving ballast
ES2075136T3 (es) * 1989-07-10 1995-10-01 Philips Electronics Na Disposicion de circuito.
US5019751A (en) * 1989-09-15 1991-05-28 Hubbell Incorporated End-of-life lamp starter disabling circuit
US5173643A (en) * 1990-06-25 1992-12-22 Lutron Electronics Co., Inc. Circuit for dimming compact fluorescent lamps

Also Published As

Publication number Publication date
DE69312867D1 (de) 1997-09-11
ES2108833T3 (es) 1998-01-01
EP0597661B1 (de) 1997-08-06
GB9223440D0 (en) 1992-12-23
EP0597661A1 (de) 1994-05-18
US5394065A (en) 1995-02-28

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee