ZA835513B - Starting of discharge lamps - Google Patents
Starting of discharge lampsInfo
- Publication number
- ZA835513B ZA835513B ZA835513A ZA835513A ZA835513B ZA 835513 B ZA835513 B ZA 835513B ZA 835513 A ZA835513 A ZA 835513A ZA 835513 A ZA835513 A ZA 835513A ZA 835513 B ZA835513 B ZA 835513B
- Authority
- ZA
- South Africa
- Prior art keywords
- switch
- voltage
- voltage pulse
- starter
- discharge lamps
- 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
- H05B41/02—Details
- H05B41/04—Starting switches
- H05B41/042—Starting switches using semiconductor devices
- H05B41/044—Starting switches using semiconductor devices for lamp provided with pre-heating electrodes
- H05B41/046—Starting switches using semiconductor devices for lamp provided with pre-heating electrodes using controlled semiconductor devices
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Pyrane Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Electronic starter circuits for discharge lamps have been proposed employing the pulse producing properties of a non-linear dielectric element. This starter uses such an element (CV) which can produce a voltage pulse substantially in excess of twice the peak of the supplied voltage in response to a voltage pulse above its saturation voltage. The starter includes a semiconductor switch (S) and a diode steering circuit (D1, D2, D3) which connects the switch across the circuit input terminals (4, 6) in one polarity to pass preheating current through the lamp cathodes (2, 3) and in another part of the starting cycle connects the switch (S) in the opposite polarity in series with the non-linear dielectric element (CV) to apply an ignition voltage pulse across the lamp (1).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8222651 | 1982-08-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA835513B true ZA835513B (en) | 1984-06-27 |
Family
ID=10532143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA835513A ZA835513B (en) | 1982-08-05 | 1983-07-28 | Starting of discharge lamps |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0102183B1 (en) |
| AT (1) | ATE32823T1 (en) |
| AU (1) | AU559657B2 (en) |
| DE (1) | DE3375874D1 (en) |
| NZ (1) | NZ205154A (en) |
| ZA (1) | ZA835513B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3327189A1 (en) * | 1983-07-28 | 1985-02-07 | Diehl GmbH & Co, 8500 Nürnberg | Circuit arrangement for the starting and brightness control of fluorescent lamps |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2949074A1 (en) * | 1979-12-06 | 1981-06-11 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Voltage impulse generator for striking gas discharge lamp - uses specified lead lanthanum titanate zirconate dielectric for nonlinear capacitor |
| JPS5750797A (en) * | 1980-09-11 | 1982-03-25 | Mitsubishi Electric Corp | Device for firing discharge lamp |
-
1983
- 1983-07-22 DE DE8383304251T patent/DE3375874D1/en not_active Expired
- 1983-07-22 EP EP83304251A patent/EP0102183B1/en not_active Expired
- 1983-07-22 AT AT83304251T patent/ATE32823T1/en not_active IP Right Cessation
- 1983-07-28 ZA ZA835513A patent/ZA835513B/en unknown
- 1983-08-02 AU AU17522/83A patent/AU559657B2/en not_active Ceased
- 1983-08-04 NZ NZ205154A patent/NZ205154A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP0102183A2 (en) | 1984-03-07 |
| AU1752283A (en) | 1984-02-09 |
| EP0102183A3 (en) | 1985-01-23 |
| NZ205154A (en) | 1986-12-05 |
| AU559657B2 (en) | 1987-03-19 |
| EP0102183B1 (en) | 1988-03-02 |
| DE3375874D1 (en) | 1988-04-07 |
| ATE32823T1 (en) | 1988-03-15 |
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