GB1017120A - Improvements in or relating to gas and/or vapour discharge lighting circuits - Google Patents
Improvements in or relating to gas and/or vapour discharge lighting circuitsInfo
- Publication number
- GB1017120A GB1017120A GB2060164A GB2060164A GB1017120A GB 1017120 A GB1017120 A GB 1017120A GB 2060164 A GB2060164 A GB 2060164A GB 2060164 A GB2060164 A GB 2060164A GB 1017120 A GB1017120 A GB 1017120A
- Authority
- GB
- United Kingdom
- Prior art keywords
- power
- lamp
- inverter
- gas
- oscillatory circuit
- 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
- 230000003534 oscillatory effect Effects 0.000 abstract 3
- 239000004065 semiconductor Substances 0.000 abstract 2
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
- H05B41/26—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC
- H05B41/28—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters
- H05B41/282—Circuit arrangements in which the lamp is fed by power derived from DC by means of a converter, e.g. by high-voltage DC using static converters with semiconductor devices
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
1,017,120. Inverting; supply systems for space discharge lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. May 19, 1964 [May 21, 1963], No. 20601/64. Headings H2F and H2H. A gas or vapour discharge lamp, or a number of such lamps in series, having two activated electrodes, are supplied from an inverter having at least one controlled semi-conductor element and an oscillatory circuit comprising inductance and capacitance wherein the ratio between the reactive power of the oscillatory circuit and the lamp power is so great that the power dissipated in the or one semi-conductor element does not exceed 150% (preferably 100%) of the power normally dissipated in that element if the lamp becomes rectifying. The inverter may be a parallel inverter with two transistors connecting the centre tapped primary of a transformer to a D.C. source and an oscillator parallel A.C. circuit connected to the secondary. The lamp has the usual ballast impedance in series with it; the power ratio should be greater than 4 and the transformer and inductor of the oscillatory circuit may have the same magnetic core.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL293072 | 1963-05-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1017120A true GB1017120A (en) | 1966-01-19 |
Family
ID=19754721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2060164A Expired GB1017120A (en) | 1963-05-21 | 1964-05-19 | Improvements in or relating to gas and/or vapour discharge lighting circuits |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1017120A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3671803A (en) * | 1970-01-28 | 1972-06-20 | Frank E Hoxsie | Portable self-starting fluorescent lamp |
-
1964
- 1964-05-19 GB GB2060164A patent/GB1017120A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3671803A (en) * | 1970-01-28 | 1972-06-20 | Frank E Hoxsie | Portable self-starting fluorescent lamp |
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