CH612304A5 - - Google Patents
Info
- Publication number
- CH612304A5 CH612304A5 CH479477A CH479477A CH612304A5 CH 612304 A5 CH612304 A5 CH 612304A5 CH 479477 A CH479477 A CH 479477A CH 479477 A CH479477 A CH 479477A CH 612304 A5 CH612304 A5 CH 612304A5
- Authority
- CH
- Switzerland
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
- H05B41/2325—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 provided with pre-heating electrodes
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- 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 |
|---|---|---|---|
| AT321376A AT345930B (de) | 1976-04-30 | 1976-04-30 | Schaltung fuer leuchtstofflampen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH612304A5 true CH612304A5 (it) | 1979-07-13 |
Family
ID=3547107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH479477A CH612304A5 (it) | 1976-04-30 | 1977-04-19 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4143302A (it) |
| AT (1) | AT345930B (it) |
| CH (1) | CH612304A5 (it) |
| DE (1) | DE2718683A1 (it) |
| GB (1) | GB1565883A (it) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1121148B (it) * | 1979-06-26 | 1986-03-26 | Siliani Pier | Circuito d accensione per tubi fluorescenti e simili con riscaldamento preliminare dei filamenti |
| US5087861A (en) * | 1989-09-01 | 1992-02-11 | Deltove Limited | Discharge lamp life and lamp lumen life-extender module, circuitry, and methodology |
| US5118994A (en) * | 1990-05-25 | 1992-06-02 | Gte Laboratories Incorporated | Method and circuit for improved hid lamp maintenance |
| US5440204A (en) * | 1993-06-14 | 1995-08-08 | Intermatic Incorporated | Gas discharge lamp lighting system with phase synchronized gating of d.c. electrode voltage |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL158054B (nl) * | 1968-11-20 | 1978-09-15 | Auco Nv | Van twee aansluitorganen voorziene hulpinrichting voor het ontsteken van een gasontladingsbuis. |
| AT308905B (de) * | 1970-04-09 | 1973-07-25 | Ernst Voegeli | Vorschaltgerät für geheizte Gasentladungsröhren |
| DE2360263C3 (de) * | 1972-12-15 | 1981-11-05 | Naamloze Vennootschap Philips' Gloeilampenfabrieken, Eindhoven | Schaltungsanordnung zum Zünden einer Gas- und /oder Dampfentladungslampe |
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1976
- 1976-04-30 AT AT321376A patent/AT345930B/de not_active IP Right Cessation
-
1977
- 1977-04-19 CH CH479477A patent/CH612304A5/xx not_active IP Right Cessation
- 1977-04-26 GB GB17341/77A patent/GB1565883A/en not_active Expired
- 1977-04-27 DE DE19772718683 patent/DE2718683A1/de not_active Withdrawn
- 1977-04-29 US US05/792,215 patent/US4143302A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE2718683A1 (de) | 1977-11-10 |
| GB1565883A (en) | 1980-04-23 |
| US4143302A (en) | 1979-03-06 |
| AT345930B (de) | 1978-10-10 |
| ATA321376A (de) | 1978-02-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |