EP1425943A1 - Procede et dispositif destines au fonctionnement economique d'un tube fluorescent - Google Patents

Procede et dispositif destines au fonctionnement economique d'un tube fluorescent

Info

Publication number
EP1425943A1
EP1425943A1 EP02767133A EP02767133A EP1425943A1 EP 1425943 A1 EP1425943 A1 EP 1425943A1 EP 02767133 A EP02767133 A EP 02767133A EP 02767133 A EP02767133 A EP 02767133A EP 1425943 A1 EP1425943 A1 EP 1425943A1
Authority
EP
European Patent Office
Prior art keywords
filament
fluorescent tube
circuit arrangement
heating current
electronic 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.)
Granted
Application number
EP02767133A
Other languages
German (de)
English (en)
Other versions
EP1425943B1 (fr
Inventor
Ewald Ehmen
Jürgen NewTronic GmbH SCHNEIDER
Karl-Heinz NewTronic GmbH STUTZER
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.)
NeoSave Europe Ltd
Original Assignee
Neosave 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 Neosave GmbH filed Critical Neosave GmbH
Publication of EP1425943A1 publication Critical patent/EP1425943A1/fr
Application granted granted Critical
Publication of EP1425943B1 publication Critical patent/EP1425943B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H05B41/26—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
    • H05B41/295—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 and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/0075—Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources
    • F21V19/008—Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources of straight tubular light sources, e.g. straight fluorescent tubes, soffit lamps
    • F21V19/0085—Fastening of light sources or lamp holders of tubular light sources, e.g. ring-shaped fluorescent light sources of straight tubular light sources, e.g. straight fluorescent tubes, soffit lamps at least one conductive element acting as a support means, e.g. resilient contact blades, piston-like contact

Definitions

  • the invention relates to a method and a device for energy-saving operation of a fluorescent tube, in particular a T5 fluorescent tube.
  • T5 fluorescent tubes are often operated today in T8 fluorescent tube holders, so that existing lamp holders for the older T8 fluorescent tubes are used for the modern T5 fluorescent tubes.
  • a first adapter adapter is arranged at a first end of the T5 fluorescent tube and a second adapter adapter is arranged at a second end of the T5 fluorescent tube in order to compensate for a difference in length of the shorter T5 fluorescent tubes compared to the T8 fluorescent tubes.
  • An electronic ballast (EVG) is arranged on the second adapter adapter to operate the fluorescent tube in an energy-saving manner.
  • the electronic ballast generates a high-frequency voltage and controls the switching on and off of a heating current for preheating incandescent filaments arranged at the two ends of the T5 fluorescent tube before the T5 fluorescent tube is ignited and in dimming mode.
  • a heating current for preheating incandescent filaments arranged at the two ends of the T5 fluorescent tube before the T5 fluorescent tube is ignited and in dimming mode.
  • An electronic circuit arrangement arranged on the second adapter intermediate piece controls the heating power supply of the incandescent filament at the first end of the T5 fluorescent tube.
  • the TOE takes on this task.
  • the object of the invention is to provide an improved method and an improved device for energy-saving operation of a fluorescent tube, in particular a T5 fluorescent tube, which (which) enables the heating current on the filament of the fluorescent tube to be controlled independently of unfavorable environmental influences.
  • This object is achieved according to the invention by a method according to independent claims 1 and devices according to independent claims 5 and 8.
  • the invention essentially comprises monitoring an operating parameter of the incandescent filament at one end of the fluorescent tube, which is formed with respect to another end of the fluorescent tube.
  • An energy saving device (EVG) is arranged at the other end of the fluorescent tube.
  • the monitoring of the operating parameter is carried out with the aid of monitoring means of an electronic circuit arrangement, the electronic circuit arrangement controlling the switching off of the heating current for the filament at one end depending on the monitored operating parameter.
  • No signals are exchanged between the electronic circuit arrangement and the energy-saving device by means of an optical transmission link or a signal line, as is provided in the prior art.
  • conditions during operation of the fluorescent tube which can hinder the signal transmission between the energy-saving device and the electronic circuit arrangement, are prevented from influencing the automatic control.
  • This enables the fluorescent tubes to be operated reliably in an energy-saving manner even under operating conditions, which arise, for example, when moisture or dirt lead to deposits on the fluorescent tube or the associated components, which impedes optical signal transmission.
  • the times of switching on / off the heating currents at the filament as well as the duration of the application of the filament with the heating current can be timed with the heating current applied to the filament, which is connected to the Energy saving device is coupled to be synchronized.
  • the application of the two heating filaments with the respective heating current can either be shifted in time with respect to one another or can be carried out simultaneously, which is true both for switching on and switching off the heating current.
  • a frequency-dependent operating voltage on the further incandescent filament, which is not coupled to the electronic ballast, is particularly suitable as the operating parameter, which is monitored with the aid of monitoring means of the electronic circuit arrangement.
  • the frequency-dependent operating voltage can expediently be used to induce a frequency-dependent voltage in a resonant circuit, which is used as an indicator of the need to switch the heating current on and off for the incandescent filament.
  • the frequency of the burning voltage changes on the incandescent filament that is not coupled to the electronic ballast.
  • This change in frequency and the thereby induced voltage in the resonant circuit is used as a control signal for a change in the heating current applied to the filament.
  • the electronic circuit arrangement which is separate from the electronic ballast and is coupled to the filament, is designed so that the heating current at the filament is controlled automatically as a function of the monitored operating parameter.
  • the method and the device in which an operating parameter of the incandescent filament is used as the starting point for controlling the heating current applied to the incandescent filament, can expediently be used for the energy-saving operation of a T5 fluorescent tube.
  • T5 fluorescent tubes are used in a lamp holder that was originally intended for another model of fluorescent tube, for example a T8 lamp, the electronic ballast and / or the electronic circuit arrangement can be integrated into adapters that hold the T5 lamp in serve the conventional version.
  • FIG. 1 shows an arrangement for energy-saving operation of a T5 fluorescent tube in two T8 fluorescent tube holders
  • FIG. 2 shows an electronic circuit arrangement for controlling the heating current of a filament at the end of a T5 fluorescent tube facing away from the electronic ballast in the arrangement according to FIG. 1;
  • FIG. 3 shows a further arrangement for energy-saving operation of a T5 fluorescent tube in two T8 fluorescent tube holders;
  • FIG. 4 shows an electronic circuit arrangement for controlling the heating current of a filament at the end of a T5 fluorescent tube facing away from the electronic ballast in the further arrangement according to FIG. 3.
  • Figure 1 shows an arrangement for operating a modern T5 fluorescent tube 1 in a first T8 fluorescent tube holder 2 and a second T8 fluorescent tube holder 3.
  • Die first and second. T8 fluorescent tube holders 2, 3 each have two receptacles 4, 5 and 6, 7, respectively.
  • a first intermediate adapter 9 is arranged between a first end 8 of the T5 fluorescent tube 1 and the first T8 fluorescent tube holder 2.
  • a second intermediate adapter 11 is arranged between a second end 10 of the T5 fluorescent tube 1 and the second T8 fluorescent tube holder 3.
  • Pins 12 and 13 of the first intermediate adapter 9 are electrically conductively connected to the receptacles 4 and 5 of the first T8 fluorescent tube holder 2.
  • connection pins 14 and 15 of the second intermediate adapter 11 are electrically conductively connected to the receptacles 6 and 7 of the second T8 fluorescent tube holder 3.
  • An electronic ballast 16 is arranged on the second intermediate adapter 11. Two connecting cables 17 and 18 connect a first connection socket 19 and a second connection socket 20 of the electronic ballast 16 to the connection pins 14 and 15 of the second intermediate adapter 11. In this way, the electronic ballast 16 is supplied with electrical voltage.
  • the electronic ballast 16 comprises a plurality of electronic components 21, 22 and 23, the specific implementation of which can be selected by a person skilled in the art depending on the application for the energy-saving operation of the fluorescent tube for a known electronic ballast.
  • the electronic ballast 16 generates a high-frequency signal, which is forwarded via a third connection socket 24 and a fourth connection socket 25 by means of two supply lines 26 and 27 to receiving sockets 28 and 29 of the second adapter intermediate piece 11.
  • a first incandescent filament 32 is electrically conductively connected to the high-frequency signal via contact pins 30 and 31 of the second end 10 of the T5 fluorescent tube 1, which are arranged in the receiving sockets 28 and 29.
  • a second incandescent filament 33 at the first end 8 of the T5 fluorescent tube 1 is connected to an electronic circuit arrangement 38 via contact pins 34 and 35 and corresponding receptacles 36 and 37 of the first adapter intermediate piece 9.
  • the electronic circuit arrangement 38 is also connected to the connecting pins 12 and 13 of the first T8 fluorescent tube holder 2.
  • FIG. 1 shows an embodiment for the electronic circuit arrangement 38.
  • a system voltage which is present across the receptacles 4 and 5 of the T8 fluorescent tube holder 2, is supplied to the electronic circuit arrangement 38 at connecting pins 12 and 13 (cf. FIG. 1). This is usually 220V AC power supply.
  • the second filament 33 which is conductively connected to the connections 36 and 37, is supplied with heating current via two half-coils 41 and 42 wound in opposite directions. Due to the opposite winding directions of the half-coils 41 and 42, no voltage is induced in a second coil 43 by the heating current of the incandescent filament 33 (not shown in FIG. 2). Only the high-frequency lamp burning current flowing through one of the two half-coils induces a voltage in the second coil 43. The high-frequency lamp current only flows from / to one of the two connections 12 or 13. The voltage induced in the second coil 43 is rectified by means of a diode 44. The induced rectified voltage charges a charging capacitor 45. A resistor 46 and a capacitor 47 represent a filter element.
  • a voltage difference occurring between point 48 and point 49 of the circuit is given by a voltage falling across a resistor 50 and a light-sensitive photodiode 51 (identical to the light-sensitive diode 40 in FIG. 1) and depends on the light incident on the photodiode 51.
  • the voltage difference between points 48 and 49 is identical to the voltage difference between a gate and a source of a field effect transistor 52.
  • the field effect transistor 52 is a normally-off end channel field effect transistor which is mounted in a heat-conducting manner. This switches through fully at a voltage difference of approximately +5 V between the gate and source. In the switched-on state, the second filament 33 (not shown in FIG.
  • FIG. 3 shows a further arrangement for energy-saving operation of a T5 fluorescent tube, in which, in contrast to the arrangement according to FIG.
  • FIG. 4 shows an embodiment of the electronic circuit arrangement 38 provided for use in the arrangement according to FIG. 3 in detail.
  • the same reference numerals in FIGS. 4 and 2 denote the same features.
  • a capacitor 61 is arranged parallel to the second coil 43. This forms a parallel resonant circuit, which is tuned so that between a point 62 and a point 63 a maximum voltage amplitude occurs at the high frequency of the lamp current at which the T5 fluorescent tube 1 generates a maximum amount of light.
  • the frequency for operating the t5 fluorescent tube is increased further.
  • the voltage amplitude occurring between points 62 and 63 drops.
  • This voltage amplitude ⁇ influences the voltage difference between the gate and source of the field effect transistor 52.
  • the parallel resonant circuit formed by the second coil 43 and the capacitor 61 thus replaces the function of the light-sensitive photodiode 51 of the circuit according to FIG. 2.
  • the electronic circuit arrangement of FIG. 4 has diodes 64 and 65, which prevent the current from flowing back. Otherwise, the mode of operation of the electronic circuit arrangement of FIG. 4 is identical to the electronic circuit arrangement described above with reference to FIG. 2.
  • a low-frequency current (50 Hz mains current) flows through the half-coils 41 and 42 and the second filament 33, which is connected to the connections 36 and 37.
  • a high-frequency current flows through one of the two half-coils 41, 42.
  • the charging capacitor 45 is charged, and the one applied to the charging capacitor 45 Voltage is smoothed by means of resistor 46 and capacitor 47.
  • the capacitor 47 also serves to delay the time.
  • the voltage induced in the parallel resonant circuit causes a positive voltage difference between the gate and the source of the field effect transistor 52.
  • the field effect transistor 52 is turned on and short-circuits the second filament 33 (not shown in FIG. 4) between the connections 36 and 37 via the bridge rectifier 53 , In the switched-on state of the field effect transistor 52, heating current no longer flows through the second incandescent filament 33 connected to the connections 36 and 37.
  • the frequency with which the T5 fluorescent tube is operated is increased. This reduces the voltage induced in the resonant circuit. A decrease in the induced voltage also results in a reduction in the voltage difference between the gate and the source of the field effect transistor 52. If the voltage difference between the gate and source decreases, the field effect transistor 52 begins to block. In this case, the second filament 33 (not shown in FIG. 4) is no longer short-circuited via the bridge rectifier 53, so that a heating current can flow again through the second filament 33 connected to the connections 36 and 37. A resistance value which is in the order of magnitude of the resistance value of the filament can be assigned to the branch with the field effect transistor. Part of the current thus flows through the FET and part through the filament. The heating current flowing through the second filament 33 is thus inversely proportional to the current flowing through the field effect transistor 52.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Luminescent Compositions (AREA)

Abstract

L'invention concerne un procédé et un dispositif destinés au fonctionnement économique d'un tube fluorescent, notamment d'un tube fluorescent T5. Dans un premier mode de fonctionnement, un premier filament boudiné situé sur une extrémité du tube fluorescent reçoit un premier courant de chauffage, et un deuxième filament boudiné situé sur une extrémité opposée du tube fluorescent reçoit un deuxième courant de chauffage. Le deuxième filament boudiné est relié à un circuit d'économie d'énergie. Dans un deuxième mode de fonctionnement, l'alimentation de courant de chauffage aux deux filaments boudinés est interrompue. Le dispositif selon l'invention comporte des éléments de contrôle compris dans un circuit électronique, destinés à contrôler un paramètre de fonctionnement du deuxième filament boudiné dans le premier et le deuxième mode de fonctionnement. Ledit circuit électronique permet de commander un intervalle d'alimentation du deuxième courant de chauffage au deuxième filament boudiné dépendant d'un intervalle d'alimentation du premier courant de chauffage au premier filament boudiné, en fonction du paramètre de fonctionnement contrôlé.
EP02767133A 2001-09-04 2002-09-03 Procede et dispositif destines au fonctionnement economique d'un tube fluorescent Expired - Lifetime EP1425943B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20114623U 2001-09-04
DE20114623U DE20114623U1 (de) 2001-09-04 2001-09-04 Distaler Adapter für T5 Leuchtstofflampen mit Nachrüst-EVG
PCT/DE2002/003244 WO2003024162A1 (fr) 2001-09-04 2002-09-03 Procede et dispositif destines au fonctionnement economique d'un tube fluorescent

Publications (2)

Publication Number Publication Date
EP1425943A1 true EP1425943A1 (fr) 2004-06-09
EP1425943B1 EP1425943B1 (fr) 2009-12-02

Family

ID=7961325

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02767133A Expired - Lifetime EP1425943B1 (fr) 2001-09-04 2002-09-03 Procede et dispositif destines au fonctionnement economique d'un tube fluorescent

Country Status (11)

Country Link
US (1) US20050030750A1 (fr)
EP (1) EP1425943B1 (fr)
JP (1) JP2005502184A (fr)
AT (1) ATE451004T1 (fr)
CA (1) CA2459226A1 (fr)
DE (4) DE20114623U1 (fr)
ES (1) ES2337885T3 (fr)
HU (1) HUP0401299A2 (fr)
PL (1) PL374155A1 (fr)
RU (1) RU2004110048A (fr)
WO (1) WO2003024162A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9015198D0 (en) 1990-07-10 1990-08-29 Brien Caroline J O Binding substance
HK1052834A2 (en) * 2002-08-23 2003-09-05 Kam Kwan Chan New type of fluorescent lamp (tube)
US8721127B2 (en) * 2003-03-21 2014-05-13 Randal D. Walton Lighting apparatus with reflector rotatably coupled to an adapter
DE102005030007B4 (de) * 2005-06-18 2013-05-29 Kk Elektrotechnik Gmbh Verfahren zum Vorheizen einer Anzahl von Heizwendeln
GB2440973B (en) * 2006-08-15 2011-08-10 Roland Terry Kenyon A lighting device
US20070159826A1 (en) * 2006-01-10 2007-07-12 Li Donglin Adapter set for fluorescent tubes
DE202006010842U1 (de) * 2006-07-12 2006-09-28 Lehmann, Oskar Vorschaltgerät
US7936129B2 (en) * 2007-04-05 2011-05-03 Eco Lighting Llc Lighting conversion system
DE202007006644U1 (de) * 2007-05-10 2008-09-18 Lauterjung, Pascal P. Adapter-System für eine Gasentladungslampe
DE102007034695A1 (de) * 2007-07-10 2009-01-22 Kk Elektrotechnik Gmbh Schaltungsanordnung zum Betreiben einer Leuchtstofflampe
US8783897B2 (en) * 2011-03-22 2014-07-22 T1 Lighting Technology Co., Ltd. Lamp module with electronic connector adapter
AT511911B1 (de) * 2011-08-19 2013-12-15 Zellinger Rudolf System zur ansteuerung und zum betrieb von leuchtstofflampen

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Publication number Priority date Publication date Assignee Title
DE3910738A1 (de) * 1989-04-03 1990-10-04 Zumtobel Ag Vorschaltgeraet fuer eine direkt geheizte entladungslampe
US5111115A (en) * 1990-02-05 1992-05-05 Electronic & Transformer Engineering Limited Fluorescent lamp controller
EP0602719B1 (fr) * 1992-12-16 1998-10-21 Koninklijke Philips Electronics N.V. Onduleur haute fréquence pour alimenter une lampe à décharge munie d'électrodes de préchauffage
DE4303595A1 (de) * 1993-02-08 1994-08-11 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum Betrieb einer Leuchtstofflampe
US5627434A (en) * 1993-10-26 1997-05-06 Canon Kabushiki Kaisha Apparatus for operating a fluorescent lamp of an image forming apparatus
GB2328319B (en) * 1994-06-22 1999-06-02 British Aerospace A frequency selective surface
US6208316B1 (en) * 1995-10-02 2001-03-27 Matra Marconi Space Uk Limited Frequency selective surface devices for separating multiple frequencies
US6456015B1 (en) * 1996-10-16 2002-09-24 Tapeswitch Corporation Inductive-resistive fluorescent apparatus and method
EP1095541B1 (fr) * 1998-10-01 2002-07-17 Future New Developments Limited Configuration de circuit destinee au fonctionnement a faible consommation d'energie d'un tube fluorescent
US6232931B1 (en) * 1999-02-19 2001-05-15 The United States Of America As Represented By The Secretary Of The Navy Opto-electronically controlled frequency selective surface
DE10038218A1 (de) * 2000-06-30 2002-01-10 Reinig Werner Vorrichtung zum energiesparenden Betreiben einer Leuchtstofflampe

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Also Published As

Publication number Publication date
US20050030750A1 (en) 2005-02-10
DE20220659U1 (de) 2003-12-18
PL374155A1 (en) 2005-10-03
JP2005502184A (ja) 2005-01-20
HUP0401299A2 (hu) 2005-03-29
ES2337885T3 (es) 2010-04-30
DE50214049D1 (de) 2010-01-14
DE20114623U1 (de) 2004-02-12
RU2004110048A (ru) 2005-02-27
WO2003024162A1 (fr) 2003-03-20
EP1425943B1 (fr) 2009-12-02
DE10294173D2 (de) 2005-06-02
CA2459226A1 (fr) 2003-03-20
ATE451004T1 (de) 2009-12-15

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