GB1178956A - Method for operating fluorescent tubes - Google Patents

Method for operating fluorescent tubes

Info

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
Application number
GB2023768A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dominitwerke GmbH
Original Assignee
Dominitwerke GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dominitwerke GmbH filed Critical Dominitwerke GmbH
Publication of GB1178956A publication Critical patent/GB1178956A/en
Expired legal-status Critical Current

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.
GB2023768A 1967-07-28 1968-04-29 Method for operating fluorescent tubes Expired GB1178956A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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