AU459680B2 - Lamp ballast apparatus - Google Patents

Lamp ballast apparatus

Info

Publication number
AU459680B2
AU459680B2 AU57437/73A AU5743773A AU459680B2 AU 459680 B2 AU459680 B2 AU 459680B2 AU 57437/73 A AU57437/73 A AU 57437/73A AU 5743773 A AU5743773 A AU 5743773A AU 459680 B2 AU459680 B2 AU 459680B2
Authority
AU
Australia
Prior art keywords
lamp ballast
ballast apparatus
lamp
ballast
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
Application number
AU57437/73A
Other versions
AU5743773A (en
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of AU5743773A publication Critical patent/AU5743773A/en
Application granted granted Critical
Publication of AU459680B2 publication Critical patent/AU459680B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/08—High-leakage transformers or inductances
    • H01F38/10—Ballasts, e.g. for discharge 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
    • H05B41/391—Controlling the intensity of light continuously using saturable magnetic devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
AU57437/73A 1972-07-28 1973-06-27 Lamp ballast apparatus Expired AU459680B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27594772A 1972-07-28 1972-07-28

Publications (2)

Publication Number Publication Date
AU5743773A AU5743773A (en) 1975-01-09
AU459680B2 true AU459680B2 (en) 1975-04-10

Family

ID=23054476

Family Applications (1)

Application Number Title Priority Date Filing Date
AU57437/73A Expired AU459680B2 (en) 1972-07-28 1973-06-27 Lamp ballast apparatus

Country Status (4)

Country Link
US (1) US3772565A (en)
AU (1) AU459680B2 (en)
ES (1) ES417279A1 (en)
GB (1) GB1428708A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3873910A (en) * 1973-10-18 1975-03-25 Gen Electric Ballast control device
US4016452A (en) * 1975-01-14 1977-04-05 General Electric Company Lamp ballast circuit
GB2140229A (en) * 1983-05-17 1984-11-21 Emi Plc Thorn Discharge lamp start and supply circuit
US4591763A (en) * 1983-07-14 1986-05-27 Wanasz Michael J Electric generator system for portable floodlighting equipment
US5406175A (en) * 1993-10-26 1995-04-11 General Electric Company Lead ballast circuit with power regulation for a gas discharge lamp
DE19530746A1 (en) * 1995-08-22 1997-02-27 Bosch Gmbh Robert Circuit arrangement for operating a high-pressure gas discharge lamp with alternating current
US6225757B1 (en) 2000-05-19 2001-05-01 Magnetek Corp. Combination MH/HPS ballast
JP4433320B2 (en) * 2007-03-09 2010-03-17 ソニー株式会社 Projector and control method thereof
JP5136824B2 (en) * 2007-03-09 2013-02-06 ソニー株式会社 Projector and control method thereof
JP2008224870A (en) * 2007-03-09 2008-09-25 Sony Corp Projector and its control method
US8016433B2 (en) * 2007-03-09 2011-09-13 Sony Corporation Projector and control method thereof
JP5109527B2 (en) * 2007-08-03 2012-12-26 ソニー株式会社 Image forming apparatus, control method therefor, and program
US7847664B2 (en) * 2009-05-06 2010-12-07 Verde Power Supply, Inc. Electromagnetic apparatus using shared flux in a multi-load parallel magnetic circuit and method of operation
US9425644B1 (en) 2015-06-03 2016-08-23 Thor Charger Company Method and apparatus for charging an electrically chargeable device utilizing resonating magnetic oscillations in the apparatus
JP7333322B2 (en) 2017-09-01 2023-08-24 トレストト プロプライエタリー リミテッド Lighting control circuit, lighting equipment and method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2578395A (en) * 1947-09-25 1951-12-11 Gen Electric Electrical ballast
US2470460A (en) * 1948-06-05 1949-05-17 Hanovia Chemical & Mfg Co Wattage controlling system
US3061759A (en) * 1951-06-27 1962-10-30 Advance Transformer Co Circuit for starting and operating discharge tubes
US2930998A (en) * 1956-02-09 1960-03-29 Ward Leonard Electric Co Fluorescent lamp dimming ballast
US3059143A (en) * 1960-05-09 1962-10-16 Basic Products Corp Ballast for discharge devices
US3684921A (en) * 1970-08-31 1972-08-15 Luis F De Leon Illuminating apparatus and ballast circuit
US3679931A (en) * 1970-09-16 1972-07-25 Gen Electric Apparatus for operating electric discharge lamps and auxiliary lighting lamps

Also Published As

Publication number Publication date
ES417279A1 (en) 1976-03-16
US3772565A (en) 1973-11-13
AU5743773A (en) 1975-01-09
GB1428708A (en) 1976-03-17

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