CA989933A - Ballast apparatus - Google Patents
Ballast apparatusInfo
- Publication number
- CA989933A CA989933A CA165,492A CA165492A CA989933A CA 989933 A CA989933 A CA 989933A CA 165492 A CA165492 A CA 165492A CA 989933 A CA989933 A CA 989933A
- Authority
- CA
- Canada
- Prior art keywords
- ballast apparatus
- 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
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
- H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
- H05B41/20—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch
- H05B41/23—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode
- H05B41/232—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for low-pressure lamps
-
- 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
- Y10S315/05—Starting and operating circuit for fluorescent lamp
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US23417672A | 1972-03-13 | 1972-03-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA989933A true CA989933A (en) | 1976-05-25 |
Family
ID=22880270
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA165,492A Expired CA989933A (en) | 1972-03-13 | 1973-02-28 | Ballast apparatus |
Country Status (2)
Country | Link |
---|---|
US (1) | US3732462A (en) |
CA (1) | CA989933A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6534929B2 (en) * | 2000-07-28 | 2003-03-18 | Koninklijke Philips Electronics N.V. | Electromagnetic ballast for sequentially starting a plurality of a gaseous discharge lamps |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2558293A (en) * | 1949-12-29 | 1951-06-26 | Advance Transformer Co | Apparatus for starting and operating gaseous discharge devices |
US2683243A (en) * | 1950-11-17 | 1954-07-06 | Advance Transformer Co | Apparatus for igniting and operating gaseous discharge devices |
US2788469A (en) * | 1951-04-26 | 1957-04-09 | Advance Transformer Co | Apparatus for igniting and operating gaseous discharge devices |
US2682014A (en) * | 1952-05-19 | 1954-06-22 | Advance Transformer Co | Apparatus for starting and operating gaseous discharge devices |
US3099773A (en) * | 1953-02-26 | 1963-07-30 | Advance Transformer Co | Apparatus for igniting and operating gaseous discharge devices |
US2965808A (en) * | 1959-07-23 | 1960-12-20 | Gen Electric | Inductive device |
US2965800A (en) * | 1959-08-17 | 1960-12-20 | Gen Electric | Ballast apparatus |
-
1972
- 1972-03-13 US US00234176A patent/US3732462A/en not_active Expired - Lifetime
-
1973
- 1973-02-28 CA CA165,492A patent/CA989933A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3732462A (en) | 1973-05-08 |
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