EP0174415A1 - Système d'alimentation en parallèle de lampes au néon, fluorescentes et similaires - Google Patents

Système d'alimentation en parallèle de lampes au néon, fluorescentes et similaires Download PDF

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Publication number
EP0174415A1
EP0174415A1 EP84830299A EP84830299A EP0174415A1 EP 0174415 A1 EP0174415 A1 EP 0174415A1 EP 84830299 A EP84830299 A EP 84830299A EP 84830299 A EP84830299 A EP 84830299A EP 0174415 A1 EP0174415 A1 EP 0174415A1
Authority
EP
European Patent Office
Prior art keywords
lamps
lighting
tubes
similar
neon
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.)
Withdrawn
Application number
EP84830299A
Other languages
German (de)
English (en)
Inventor
Paolo Simoneschi
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.)
Sforna Pietro
Original Assignee
Sforna Pietro
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 Sforna Pietro filed Critical Sforna Pietro
Publication of EP0174415A1 publication Critical patent/EP0174415A1/fr
Withdrawn legal-status Critical Current

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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
    • H05B41/36—Controlling

Definitions

  • the present invention concerns a system for the lighting of neon lamps, fluorescent lamps and further applications, characterized in the parallel arrangement of the components.
  • intensities of 25 m A for lamps (tubes) of 12 and 15 mm are used, 50 m A for lamps (tubes) of 15 and 20 mm, and 100 m A for diameters of 20 and 22 mm.
  • Said transformers are planned according to the length of the lamp (tube) in reason of 500 Volt for each linear meter of length of said lamp (tube), with tension jumps of 500 Volt, from 1000 to 10.000 Volt, so as to request the realisation of 57 different transformers, corresponding to 11 different tensions multiplied by three used intensities.
  • Said request implies a large number of different transformers and this causes a situation of difficult finding and choice
  • the lighting of 18-19 meters of a 25 mm lamp (tube) implies the use of a 9000 V transformer for 100 m A on the secondary and consequently a high danger condition for the installer and for normal use.
  • transformers of said last kind are little protected by security systems actually known like fuses, automatic switsches and similar, in consideration of the fact that they must also bear short circuits.
  • a further disadvantage of said transformers is that they heat up very much, due to the fact that they always work at nominal current and it may happen that they burn, even if the realization criteria are good and improved.
  • lamps up to three meters length are used; therefore, if one transformer shall light an 18 m lamp (tube), six lamps (tubes) in series will be used and, as it is known, if one element out of the whole series brakes, the whole system stops working and this means that a technician urgently must be called.
  • the system according to the present invention consists in a transformer for elevating the net tension up to 1200 Volt, with a current intensity corresponding to the absorption requests, wherein the lamps (tubes) to be lit are connected in parallel with one electrode directly to one end of the high-tension, while between the other electrode of each lamp (tube) and the other end an element is placed having the function of limiting the current's intensity to the value requested for the lighting of each lamp (tube) leaving the remaining intensity at disposal.
  • Said limiter element consists in a wire resistance of minimum cost, perfectly functioning in the presence of alternate current frequencies of 50 Hz.
  • said limiter element consists, according to the present invention, in condensers C, the capacitive reactance 1 ⁇ C thereof proving to be appropriate for determining the lighting of neon lamps (tubes), according to the aim set forth.
  • a main feature of the present invention consists - in the variant with resistance limiters - in a small metal tongue placed outside each lamp (tube), applied to the glass thereof, which tongue allows to solve the problem of the prime as it is able to make the inner gas sensitive to the overtensions carried by the glass.
  • the system comprises lamps (tubes) 1, 2, 3, ..., N arranged in parallel, each provided with the own limiter L at the ends of transformer T and a protection fuse F fed by the net. Tongue M is liable with the electrode of resistance R.
  • exchanges for light-games may light the neon lamps (tubes) directly without any external transformer.

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  • Circuit Arrangements For Discharge Lamps (AREA)
EP84830299A 1984-06-29 1984-11-06 Système d'alimentation en parallèle de lampes au néon, fluorescentes et similaires Withdrawn EP0174415A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT4848384 1984-06-29
IT8448483A IT1213282B (it) 1984-06-29 1984-06-29 Impianto in parallelo per l'accensione di tubi al neon,lampade fluorescenti e simili

Publications (1)

Publication Number Publication Date
EP0174415A1 true EP0174415A1 (fr) 1986-03-19

Family

ID=11266828

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84830299A Withdrawn EP0174415A1 (fr) 1984-06-29 1984-11-06 Système d'alimentation en parallèle de lampes au néon, fluorescentes et similaires

Country Status (2)

Country Link
EP (1) EP0174415A1 (fr)
IT (1) IT1213282B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0598487A2 (fr) * 1992-10-08 1994-05-25 Everbrite Inc. Système modulaire pour enseigne au néon avec tension réduite
EP0653903A2 (fr) * 1993-11-15 1995-05-17 Meggitt (U.K.) Limited Méthode et appareil pour tube fluorescent

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE629684C (de) * 1932-01-16 1936-05-08 Osram G M B H Komm Ges Einrichtung zur Zuendung einer elektrischen Gas- oder Dampfentladungsroehre
US2086668A (en) * 1933-09-23 1937-07-13 Victor Beecroft North Apparatus for operating electric luminous tubes
DE1147694B (de) * 1960-08-19 1963-04-25 Siemens Ag Schaltungsanordnung zum Betrieb von helligkeitsgesteuerten Leuchtstoff-lampen mit Phasenanschnittssteuerung
GB936285A (en) * 1960-06-27 1963-09-11 Triflux Soc Power supply device and/or circuit for gas-discharge lamps and the like

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE629684C (de) * 1932-01-16 1936-05-08 Osram G M B H Komm Ges Einrichtung zur Zuendung einer elektrischen Gas- oder Dampfentladungsroehre
US2086668A (en) * 1933-09-23 1937-07-13 Victor Beecroft North Apparatus for operating electric luminous tubes
GB936285A (en) * 1960-06-27 1963-09-11 Triflux Soc Power supply device and/or circuit for gas-discharge lamps and the like
DE1147694B (de) * 1960-08-19 1963-04-25 Siemens Ag Schaltungsanordnung zum Betrieb von helligkeitsgesteuerten Leuchtstoff-lampen mit Phasenanschnittssteuerung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0598487A2 (fr) * 1992-10-08 1994-05-25 Everbrite Inc. Système modulaire pour enseigne au néon avec tension réduite
EP0598487A3 (fr) * 1992-10-08 1995-01-18 Everbrite Inc Système modulaire pour enseigne au néon avec tension réduite.
EP0653903A2 (fr) * 1993-11-15 1995-05-17 Meggitt (U.K.) Limited Méthode et appareil pour tube fluorescent
EP0653903A3 (fr) * 1993-11-15 1996-12-04 Meggitt Uk Ltd Méthode et appareil pour tube fluorescent.

Also Published As

Publication number Publication date
IT1213282B (it) 1989-12-14
IT8448483A0 (it) 1984-06-29

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Inventor name: SIMONESCHI, PAOLO