ZA754375B - Multiple output level power supply apparatus for thermionic device - Google Patents
Multiple output level power supply apparatus for thermionic deviceInfo
- 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
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
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)
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)
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 |
-
1974
- 1974-08-05 US US494413A patent/US3911320A/en not_active Expired - Lifetime
-
1975
- 1975-07-07 CA CA230,961A patent/CA1046165A/en not_active Expired
- 1975-07-08 ZA ZA00754375A patent/ZA754375B/en unknown
Also Published As
Publication number | Publication date |
---|---|
CA1046165A (en) | 1979-01-09 |
US3911320A (en) | 1975-10-07 |
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