GB1178956A - Method for operating fluorescent tubes - Google Patents
Method for operating fluorescent tubesInfo
- Publication number
- GB1178956A GB1178956A GB2023768A GB2023768A GB1178956A GB 1178956 A GB1178956 A GB 1178956A GB 2023768 A GB2023768 A GB 2023768A GB 2023768 A GB2023768 A GB 2023768A GB 1178956 A GB1178956 A GB 1178956A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mains
- tube
- battery
- supply
- inverter
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
- H02J9/065—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads for lighting purposes
-
- 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
-
- 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
- H05B41/46—Circuits providing for substitution in case of failure of the lamp
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Abstract
1,178,956. Supply systems for discharge lamps. DOMINITWERKE G.m.b.H. 29 April, 1968 [28 July, 1967], No. 20237/68. Heading H2H. Fluorescent tube is connected to two supplies of different frequencies in such a way that lighting is not interrupted when one supply fails. The tube 1 is supplied from the mains 4 through a choke 2 and is also connected to a battery supply 8 by way of an inverter 12. The battery is charged from the mains through a transformer 5, bridge 6 and diode 7. During mains operation, an electronic switch 13 on the inverter is held open by a voltage appearing at the terminal 14 of the bridge 6, but when the mains voltage falls below a preset value, the switch 13 closes so that the tube 1 is supplied from the battery 8. The tube may operate with both sources connected simultaneously if the mains voltage is low but not zero. Restoration of the mains causes the switch 13 to open, disconnecting the battery supply. A resonant LC circuit 9, 10 enables the tube to be ignited when only the battery supply is available, since a high voltage will be generated across the inductor 10 when the inverter is switched on. The circuit components may be so chosen that the tube output is lower on battery operation than on mains supply.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED0053715 | 1967-07-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1178956A true GB1178956A (en) | 1970-01-28 |
Family
ID=7055199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2023768A Expired GB1178956A (en) | 1967-07-28 | 1968-04-29 | Method for operating fluorescent tubes |
Country Status (9)
Country | Link |
---|---|
BE (1) | BE714382A (en) |
CH (1) | CH477144A (en) |
DE (1) | DE1589131B2 (en) |
ES (1) | ES353276A1 (en) |
FR (1) | FR1560959A (en) |
GB (1) | GB1178956A (en) |
LU (1) | LU55985A1 (en) |
NL (1) | NL6806009A (en) |
SE (1) | SE351547B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2190551A (en) * | 1986-05-07 | 1987-11-18 | Sealand Ind Co Ltd | Standby power supply |
GB2316818A (en) * | 1996-08-28 | 1998-03-04 | Jsb Electrical Plc | Emergency luminaire power supply with reduced HF emissions |
EP1440605A1 (en) * | 2001-03-15 | 2004-07-28 | Inc. The Bodine Company | Arc maintenance device for high density discharge lamps including an adaptive waveform monitor |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2229163B2 (en) * | 1973-05-08 | 1975-08-22 | Accumulateurs Fixes | |
US4117373A (en) * | 1977-04-28 | 1978-09-26 | General Electric Company | Emergency/normal lighting circuit for a gaseous discharge lamp |
DE3513311A1 (en) * | 1985-04-13 | 1986-10-16 | Ceag Licht- Und Stromversorgungstechnik Gmbh, 4770 Soest | CIRCUIT ARRANGEMENT |
DE19516052A1 (en) * | 1995-05-04 | 1996-11-14 | Eta Plus Electronic Gmbh U Co | Method for operating a high-pressure gas discharge lamp and circuit arrangement for carrying out the method |
DE19529750B4 (en) * | 1995-08-12 | 2012-01-19 | Ceag Notlichtsysteme Gmbh | Emergency light with conventional ballast |
-
1967
- 1967-07-28 DE DE19671589131 patent/DE1589131B2/en not_active Ceased
-
1968
- 1968-04-25 CH CH613468A patent/CH477144A/en not_active IP Right Cessation
- 1968-04-26 SE SE564368A patent/SE351547B/xx unknown
- 1968-04-26 LU LU55985D patent/LU55985A1/xx unknown
- 1968-04-26 NL NL6806009A patent/NL6806009A/xx unknown
- 1968-04-26 FR FR1560959D patent/FR1560959A/fr not_active Expired
- 1968-04-27 ES ES353276A patent/ES353276A1/en not_active Expired
- 1968-04-29 BE BE714382D patent/BE714382A/xx unknown
- 1968-04-29 GB GB2023768A patent/GB1178956A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2190551A (en) * | 1986-05-07 | 1987-11-18 | Sealand Ind Co Ltd | Standby power supply |
GB2316818A (en) * | 1996-08-28 | 1998-03-04 | Jsb Electrical Plc | Emergency luminaire power supply with reduced HF emissions |
EP1440605A1 (en) * | 2001-03-15 | 2004-07-28 | Inc. The Bodine Company | Arc maintenance device for high density discharge lamps including an adaptive waveform monitor |
EP1440605A4 (en) * | 2001-03-15 | 2006-06-14 | Bodine Company Inc The | Arc maintenance device for high density discharge lamps including an adaptive waveform monitor |
Also Published As
Publication number | Publication date |
---|---|
DE1589131A1 (en) | 1970-04-09 |
SE351547B (en) | 1972-11-27 |
DE1589131B2 (en) | 1973-10-31 |
FR1560959A (en) | 1969-03-21 |
NL6806009A (en) | 1969-01-30 |
LU55985A1 (en) | 1968-07-12 |
ES353276A1 (en) | 1969-08-16 |
BE714382A (en) | 1968-09-16 |
CH477144A (en) | 1969-08-15 |
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