GB1186891A - Starting Device for Discharge Lamp - Google Patents
Starting Device for Discharge LampInfo
- Publication number
- GB1186891A GB1186891A GB1601567A GB1601567A GB1186891A GB 1186891 A GB1186891 A GB 1186891A GB 1601567 A GB1601567 A GB 1601567A GB 1601567 A GB1601567 A GB 1601567A GB 1186891 A GB1186891 A GB 1186891A
- Authority
- GB
- United Kingdom
- Prior art keywords
- discharge lamp
- april
- capacitor
- heaters
- resistor
- 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
- H05B41/02—Details
- H05B41/04—Starting switches
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
1,186,891. Discharge lamp arrangements. MATSUSHITA DENKO K.K. 7 April, 1967 [9 April, 1966; 22 April, 1966(2) ; 29 Dec., 1966], No. 16015/67. Heading H2H. A starting device for a filamentary discharge lamp comprises a starting pulse generating circuit including a switching element having substantially symmetrical forward and reverse switching characteristics, a capacitor, and a pulse transformer arranged so that startiing pulses are generated and filament preheating current is derived either during each or alternate half cycles of an A.C. source voltage. A discharge lamp F fed through a ballast B is ignited by charging through heaters #1, f2, a capacitor C1 which is discharged each half cycle through a transformer primary winding W1 by a five layer breakdown device Q1. To adjust the heater current, a resistor R<1> with a shunting capacitor C2 and an optional diode D or other breakdown device to by-pass the induced voltage from windings W1, W2 may be serially connected. The heaters may be fed from secondary windings on a transformer connected across the mains supply Figs. 9-11 (not shown). An inductor may be substituted for the resistor R<1>. Further arrangements are described in the specification.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2255666 | 1966-04-09 | ||
| JP2574666 | 1966-04-22 | ||
| JP2574866 | 1966-04-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1186891A true GB1186891A (en) | 1970-04-08 |
Family
ID=27283889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1601567A Expired GB1186891A (en) | 1966-04-09 | 1967-04-07 | Starting Device for Discharge Lamp |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1589229B2 (en) |
| GB (1) | GB1186891A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2210520A (en) * | 1987-09-28 | 1989-06-07 | Hubbell Inc | Starting and operating circuit for a super compact fluorescent lamp |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3522475A (en) * | 1967-06-29 | 1970-08-04 | Matsushita Electric Works Ltd | Discharge lamp starting device |
-
1967
- 1967-04-07 GB GB1601567A patent/GB1186891A/en not_active Expired
- 1967-04-08 DE DE19671589229 patent/DE1589229B2/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2210520A (en) * | 1987-09-28 | 1989-06-07 | Hubbell Inc | Starting and operating circuit for a super compact fluorescent lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1589229B2 (en) | 1971-11-11 |
| DE1589229A1 (en) | 1971-02-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE | Patent expired |