ZA754375B - Multiple output level power supply apparatus for thermionic device - Google Patents

Multiple output level power supply apparatus for thermionic device

Info

Publication number
ZA754375B
ZA754375B ZA00754375A ZA754375A ZA754375B ZA 754375 B ZA754375 B ZA 754375B ZA 00754375 A ZA00754375 A ZA 00754375A ZA 754375 A ZA754375 A ZA 754375A ZA 754375 B ZA754375 B ZA 754375B
Authority
ZA
South Africa
Prior art keywords
power supply
supply apparatus
output level
multiple output
level power
Prior art date
Application number
ZA00754375A
Inventor
J Crawford
F Abrahams
Original Assignee
Advance Transformer 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 Advance Transformer Co filed Critical Advance Transformer Co
Publication of ZA754375B publication Critical patent/ZA754375B/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
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/40—Controlling the intensity of light discontinuously
    • 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
    • Y10S315/04—Dimming circuit for fluorescent lamps
ZA00754375A 1974-08-05 1975-07-08 Multiple output level power supply apparatus for thermionic device ZA754375B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US494413A US3911320A (en) 1974-08-05 1974-08-05 Multiple lighting level ballast for fluorescent lamps

Publications (1)

Publication Number Publication Date
ZA754375B true ZA754375B (en) 1976-08-25

Family

ID=23964372

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00754375A ZA754375B (en) 1974-08-05 1975-07-08 Multiple output level power supply apparatus for thermionic device

Country Status (3)

Country Link
US (1) US3911320A (en)
CA (1) CA1046165A (en)
ZA (1) ZA754375B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3996495A (en) * 1975-07-25 1976-12-07 North American Philips Corporation High efficiency ballast system for electric discharge lamps
US4097783A (en) * 1976-09-13 1978-06-27 Ppg Industries, Inc. Ultraviolet light processor
US4256993A (en) * 1979-06-04 1981-03-17 Westinghouse Electric Corp. Energy saving device for rapid-start fluorescent lamp system
US4417181A (en) * 1979-07-06 1983-11-22 Sonelt Corporation Electronic ballast
US4388564A (en) * 1981-03-09 1983-06-14 General Electric Company Energy saving fluorescent lamp circuit
US4517498A (en) * 1982-02-22 1985-05-14 Advance Transformer Co. Sequence start lamp ballast with current spike suppression means
US4559479A (en) * 1983-06-20 1985-12-17 Emerson Electric Co. Starting and dimming circuit for fluorescent lamps
JPS6116899U (en) * 1984-07-04 1986-01-31 能幸 眞田 fluorescent lamp device
JPS6116900U (en) * 1984-07-04 1986-01-31 能幸 眞田 fluorescent lamp device
US4686427A (en) * 1985-08-13 1987-08-11 Magnetek, Inc. Fluorescent lamp dimming switch
US4994718A (en) * 1989-02-07 1991-02-19 Musco Corporation Method and means for dimming ballasted lamps
US5184113A (en) * 1990-10-01 1993-02-02 Greg Baron Electrical field display/signal device
US5204587A (en) * 1991-02-19 1993-04-20 Magnetek, Inc. Fluorescent lamp power control

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3323013A (en) * 1964-11-30 1967-05-30 Gen Electric Systems and ballast apparatus for operating fluorescent lamps at preselected levels of illumination

Also Published As

Publication number Publication date
CA1046165A (en) 1979-01-09
US3911320A (en) 1975-10-07

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