GB774477A - Improvements in or relating to means for igniting an electric discharge tube fed from a source of radio-frequency excitation - Google Patents
Improvements in or relating to means for igniting an electric discharge tube fed from a source of radio-frequency excitationInfo
- Publication number
- GB774477A GB774477A GB3171055A GB3171055A GB774477A GB 774477 A GB774477 A GB 774477A GB 3171055 A GB3171055 A GB 3171055A GB 3171055 A GB3171055 A GB 3171055A GB 774477 A GB774477 A GB 774477A
- Authority
- GB
- United Kingdom
- Prior art keywords
- discharge
- source
- tube
- circuit
- igniting
- 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
- H05B41/24—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
774,477. Supply systems for space discharge tubes. TOUVET, G. Jan. 12, 1951, No. 31710/55. Divided out of 774,471. Class 38 (4). In a circuit embodying a source of R.F. voltage applied to a luminescent discharge tube 1 in which the discharge passes between internal electrodes which are heated by the discharge without preheating, starting of the discharge when the tube is cold is facilitated by the provision of an anti-resonant circuit 18 shunted across the tube, the circuit 18 offering a high impedance at the frequency of the voltage source and being disconnected automatically as soon as the tube becomes operative. As shown, the circuit 18 is disconnected by the contacts of a relay 19 whose coil is energized by the lamp discharge current. Specification 774,475 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3171055A GB774477A (en) | 1951-01-12 | 1951-01-12 | Improvements in or relating to means for igniting an electric discharge tube fed from a source of radio-frequency excitation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3171055A GB774477A (en) | 1951-01-12 | 1951-01-12 | Improvements in or relating to means for igniting an electric discharge tube fed from a source of radio-frequency excitation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB774477A true GB774477A (en) | 1957-05-08 |
Family
ID=10327246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3171055A Expired GB774477A (en) | 1951-01-12 | 1951-01-12 | Improvements in or relating to means for igniting an electric discharge tube fed from a source of radio-frequency excitation |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB774477A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2346273A (en) * | 1999-01-20 | 2000-08-02 | Nordson Corp | Discharge lamp ignitor circuit |
-
1951
- 1951-01-12 GB GB3171055A patent/GB774477A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2346273A (en) * | 1999-01-20 | 2000-08-02 | Nordson Corp | Discharge lamp ignitor circuit |
| GB2346273B (en) * | 1999-01-20 | 2003-10-29 | Nordson Corp | Power supply including a lamp ignitor circuit |
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