EP1400156B1 - Betriebsgerät für leuchtstoffröhren mit eingebauter kühlstelle - Google Patents

Betriebsgerät für leuchtstoffröhren mit eingebauter kühlstelle Download PDF

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Publication number
EP1400156B1
EP1400156B1 EP01274324A EP01274324A EP1400156B1 EP 1400156 B1 EP1400156 B1 EP 1400156B1 EP 01274324 A EP01274324 A EP 01274324A EP 01274324 A EP01274324 A EP 01274324A EP 1400156 B1 EP1400156 B1 EP 1400156B1
Authority
EP
European Patent Office
Prior art keywords
temperature
cooling point
fluorescent tube
heating coil
ballast
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 - Lifetime
Application number
EP01274324A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1400156A1 (de
Inventor
Wilhelm Wilken
Jürgen Schneider
Ewald Ehmen
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 EUROPE Ltd
NEOSAVE EUROP Ltd
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 EUROPE Ltd, NEOSAVE EUROP Ltd filed Critical NEOSAVE EUROPE Ltd
Publication of EP1400156A1 publication Critical patent/EP1400156A1/de
Application granted granted Critical
Publication of EP1400156B1 publication Critical patent/EP1400156B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H05B41/3927—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by pulse width modulation
    • 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

  • This invention enters an electronic control gear according to the preamble of claim 1.
  • the mercury vapor pressure increases exponentially with temperature.
  • the luminous flux of the fluorescent tube initially increases with the mercury vapor pressure and the temperature, because with increasing pressure, more mercury atoms are available for generating light.
  • the self-absorption losses increase with temperature, resulting in a luminous flux drop. In between there is an optimal operating temperature.
  • the new T5 fluorescent tubes 14 to 35 W and 24 to 80 W are equipped with a cooling point behind a heating coil, namely the heating coil on the stamped side of the fluorescent tube, so that they allow control of the mercury vapor pressure by heating this coil and thus the cooling point.
  • T5 fluorescent tubes are designed to reach their optimum operating temperature of 35 ° without coil heating at an ambient temperature in the luminaire of 25 °. Especially T5 fluorescent tubes are particularly sensitive to temperature fluctuations and react with high luminous flux drop, if the optimum operating temperature is not met, so the mercury vapor pressure is not optimally adjusted. The operating temperature is met when new T5 fluorescent lamps are used with newer non-dimmable control gear, also known as electronic prescalers (ECGs).
  • ECGs electronic prescalers
  • the temperature of the fluorescent tube decreases due to the lower lamp power.
  • the ambient temperature of the fluorescent tubes ie the temperature in the luminaires
  • the luminous flux decreases in addition.
  • some dimmable electronic ballasts heat the heating filament of the fluorescent lamps with a dimming independent Wendel carvingstrom. This ensures that with an electrical dimming by pulse width modulation to 10%, the luminous flux also drops to 10% of the maximum luminous flux. Due to the dimming independent WendelMapstroms reach lamps undamped operating temperatures of about 45 ° C. As stated above, when the operating temperature is too high, the self-absorption losses increase. Therefore, these ECGs deliver worse maximum luminous flux values than non-dimmable ECGs.
  • Neither dimmable nor dimmable T5 lamps on the market are capable of maintaining optimum lamp temperature at different ambient temperatures.
  • An advantage of a measurement of the temperature of the cooling point or a temperature in the vicinity of the cooling point and a heating of the coil on the cooling side, so that the measured temperature remains constant, is that thereby an optimal mercury vapor pressure is maintained regardless of the dimming of the lamp and ambient temperature fluctuations becomes.
  • the best and most reliable way to set the optimum vapor pressure is to measure the temperature of the aluminum lamp cap above the cooling point, the temperature of which determines the mercury vapor pressure in the lamp.
  • control according to the invention advantageously sets the maximum light output at all ambient temperatures and degrees of dimming within the scope of the lamp-physical possibilities.
  • Fig. 1 shows an inventive operating device. It preferably drives a T5 fluorescent tube 12. This contains the heating coils 13 and 14, wherein the cooling point is arranged behind the coil 13.
  • the operating device comprises a line filter 1, a rectifier bridge circuit 2, an RF generator 3 (HF: high frequency), a pulse width modulator 4, a FET power amplifier 5, a safety cutoff and burnout control module 6, a low voltage power supply 9, a filament heater controller 10, a filament heater 11, a dimming factor stabilizer 8 and a temperature sensor 15.
  • the line filter 1 can be, for example, by the in Fig. 2 shown provided with a core double throttles 25 and 26 and the capacitors 27 and 28 can be realized.
  • a further throttle 24 and a further capacitor 21 may be provided in the line filter 1.
  • the rectifier bridge 2 preferably consists of four diodes 31, 32, 33 and 34.
  • capacitors 29 and 30 may be provided.
  • the rectifier bridge circuit 2 includes one or more electrolytic capacitors 35 and 36 for reducing the ripple of the rectified voltage.
  • the high-frequency generator 3 is realized by the integrated circuit 43 in conjunction with resistors 50 and 52 and capacitors 51 and 42.
  • the FET power amplifier 5 (FET: Field Effect Transistor) preferably consists of FETs 38 and 40. Furthermore, the resistors 39 and 41 may be provided which protect the integrated circuit 43 from excessive currents when the FETs 38 and 40 are turned on and off. Further, the FET power amplifier 5 includes a capacitor 37 for suppressing the DC component and for supplying a reactor 63 with an output voltage charged with an impedance to the fluorescent tube. The driving of the fluorescent tube with an impedance-loaded voltage is necessary because the fluorescent tube has a negative differential resistance, so that in the typical operating range, despite increasing voltage, the current increases.
  • the reason for the use of high frequency is that with increasing frequency coils with lower inductance produce sufficient reactance. Consequently, as the frequency increases, the size of the inductor 63 decreases.
  • One electrode of the capacitor 37 is connected to both FETs, the other to one terminal of the inductor 63. Between the other terminal of the inductor 63 and an operating voltage of the FET power amplifier, the burning voltage 16 for the fluorescent tube are tapped.
  • the assembly 6, which realizes the safety shutdown and the internal voltage control, is realized in the preferred embodiment by resistors 48, 58, 66, Tyristor 54, capacitors 57 and 59 and diodes 53, 55, 56 and 60.
  • resistor 66 and diodes 53 and 55 provide for a shutdown of the operating device, if too high a voltage is supplied by the network, which can lead to the destruction of the operating device and / or the fluorescent tube.
  • resistors 58, 61, 62, diodes 56, 60 and capacitors 57 and 59 practice the burning voltage.
  • the power amplifier As long as the fluorescent tube has not yet ignited, the power amplifier generates a burning voltage of about 800 V between the two due to the resonant circuit formed by capacitors 37 and 65 and coil 63 Spiraling the fluorescent tube. After ignition of the fluorescent tube breaks this voltage by damping the resonant circuit through the fluorescent tube to about 200 to 300 V together.
  • the combustion voltage control in module 6 switches off the pulse width modulator and thus also the power amplifier, if the ignition voltage does not collapse within 0.5 to 1 s after switching on the burning voltage to 200 to 300 V, ie the fluorescent tube has not ignited.
  • the ignition of the fluorescent tube is determined by measuring the drain current through a power transistor. When ignited, this current increases in the time average.
  • a resistor between the negative supply voltage and the drain in the transistor 40 are preferably connected, and the voltage drop across this transistor via the diode 60 of the combustion voltage control.
  • the mains voltage controller 7 also influences the pulse width modulator.
  • the mains voltage controller alters the pulse width modulation in such a way that the fluorescent tube glows equally bright despite fluctuations in the mains voltage. This makes sense, in particular, since the net nominal voltage varies between 220 and 240 V in individual European countries and the USA. In this way, country-specific features are compensated by the Netzwoodscontroler 7.
  • the low-voltage power supply generates a DC voltage of 15 V for the Dimm tintstabilmaschine 8 and the Wendelsammlungungs Kunststoffung 10.
  • the dimming factor stabilizer can measure a voltage or a resistance at the dimming input.
  • the WendelMapungsberichtung 10 controls the filament heater 11 when switching so that both Thompsonheirl 13 and 14 for 0.3 to 0.5 s are heated at full power, before the FET power amplifier 5, a burning voltage is applied to the fluorescent tube.
  • the preheating of the filament is referred to as a so-called warm start.
  • the warm start reduces the wear of the heating coil 13 and 14.
  • the life of a fluorescent tube without starting operations is about 20,000 operating hours. Due to frequent cold starts, ie starts without preheating the heating coils, this reduces to approximately 5,000 operating hours.
  • the heating coil 13 After starting the fluorescent tube, only the heating coil 13 is heated in a preferred embodiment.
  • the heating coil 14 is completely separated from the filament heating, so that the filament heating itself is not a short circuit for the power amplifier 5, when the power amplifier supplies a burning voltage.
  • the filament heating can be done by alternating current and be provided in the filament heating a transformer having two secondary windings, namely for each heating coil one.
  • the heating power in the heating coil is controlled by the coil heating controller 10 so that the temperature measured by the temperature sensor 15 remains constant.
  • the output signal of the temperature sensor of the coil heating control 10 is supplied.
  • the helical heater controller receives a control signal from dimming factor stabilizer 8. The latter signal provides improved control over transient dimming operations. If the dimming is suddenly ramped up or down, the temperature sensor 15 reacts only with a delay to the temperature changing in the aluminum cap with the lamp power.
  • the coil heater controller may be a PID controller. Where P is proportional, D is differential, and I is integral. In particular, the differential component for the controller is calculated from the signal obtained from the dimming factor stabilization.
  • the dimming factor stabilization affects the pulse width modulator according to the dimming.
  • heating coil 13 not only heating coil 13 but also heating coil 14 is preferably heated during operation with the same heating power.
  • This embodiment keeps the temperature in the fluorescent tube and thus the mercury vapor pressure in the optimum range, especially in the case of strong ambient temperature fluctuations.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
EP01274324A 2001-06-20 2001-11-02 Betriebsgerät für leuchtstoffröhren mit eingebauter kühlstelle Expired - Lifetime EP1400156B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10129755A DE10129755A1 (de) 2001-06-20 2001-06-20 Betriebsgerät für Leuchtstoffröhren mit eingebauter Kühlstelle
DE10129755 2001-06-20
PCT/DE2001/004138 WO2003001856A1 (de) 2001-06-20 2001-11-02 Betriebsgerät für leuchtstoffröhren mit eingebauter kühlstelle

Publications (2)

Publication Number Publication Date
EP1400156A1 EP1400156A1 (de) 2004-03-24
EP1400156B1 true EP1400156B1 (de) 2008-12-31

Family

ID=7688844

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01274324A Expired - Lifetime EP1400156B1 (de) 2001-06-20 2001-11-02 Betriebsgerät für leuchtstoffröhren mit eingebauter kühlstelle

Country Status (13)

Country Link
EP (1) EP1400156B1 (pl)
JP (1) JP2004531040A (pl)
AT (1) ATE419734T1 (pl)
CA (1) CA2451590A1 (pl)
CZ (1) CZ20033517A3 (pl)
DE (3) DE10129755A1 (pl)
ES (1) ES2320092T3 (pl)
HU (1) HUP0401456A2 (pl)
PL (1) PL204319B1 (pl)
RU (1) RU2004101293A (pl)
SK (1) SK15962003A3 (pl)
TR (1) TR200302237T1 (pl)
WO (1) WO2003001856A1 (pl)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101253600B (zh) 2005-08-31 2013-06-19 特洛伊科技有限公司 紫外射灯及放射源模组以及含有该紫外射灯的处理系统
DE102010064032A1 (de) * 2010-12-23 2012-06-28 Tridonic Gmbh & Co. Kg Geregelte Wendelheizung für Gasentladungslampen
DE102012109519B4 (de) 2012-10-08 2017-12-28 Heraeus Noblelight Gmbh Verfahren zum Betreiben einer Lampeneinheit zur Erzeugung ultravioletter Strahlung sowie geeignete Lampeneinheit dafür
DE102016120672B4 (de) 2016-10-28 2018-07-19 Heraeus Noblelight Gmbh Lampensystem mit einer Gasentladungslampe und dafür angepasstes Betriebsverfahren
EP4210086A1 (en) * 2018-01-24 2023-07-12 Xylem Europe GmbH Germicidal amalgam lamp with temperature sensor for optimized operation

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2094720A5 (pl) * 1970-06-30 1972-02-04 Fedorenko Anatoly
DE2138793A1 (de) * 1971-08-03 1973-02-22 Patra Patent Treuhand Quecksilberdampfniederdruckentladungslampe mit amalgam
US3898511A (en) * 1974-04-22 1975-08-05 Gte Sylvania Inc Fluorescent lamp containing amalgam-forming material for reducing stabilization time
DE3432675A1 (de) * 1984-09-05 1986-03-13 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 8000 München Kompakte niederdruckentladungslampe
US4827313A (en) * 1988-07-11 1989-05-02 Xerox Corporation Mechanism and method for controlling the temperature and output of an amalgam fluorescent lamp
US5173643A (en) * 1990-06-25 1992-12-22 Lutron Electronics Co., Inc. Circuit for dimming compact fluorescent lamps
US5029311A (en) * 1990-09-28 1991-07-02 Xerox Corporation Stabilized fluorescent lamp for a document scanning system
US5274305A (en) * 1991-12-04 1993-12-28 Gte Products Corporation Low pressure mercury discharge lamp with thermostatic control of mercury vapor pressure
DE69616937T2 (de) * 1995-10-16 2002-08-29 General Electric Co., Schenectady Elektronisches Vorschaltgerät mit hohem Leistungsfaktor
DE19702285A1 (de) * 1997-01-23 1998-07-30 Josef Hoffmann Stromsparende Leuchtstofflampe
JP3275797B2 (ja) * 1997-09-10 2002-04-22 松下電器産業株式会社 低圧水銀蒸気放電ランプ
US5808418A (en) * 1997-11-07 1998-09-15 Honeywell Inc. Control mechanism for regulating the temperature and output of a fluorescent lamp
US6252355B1 (en) * 1998-12-31 2001-06-26 Honeywell International Inc. Methods and apparatus for controlling the intensity and/or efficiency of a fluorescent lamp
TW453136B (en) * 1999-05-19 2001-09-01 Koninkl Philips Electronics Nv Circuit arrangement

Also Published As

Publication number Publication date
CZ20033517A3 (cs) 2004-05-12
DE10129755A1 (de) 2003-01-02
PL204319B1 (pl) 2009-12-31
RU2004101293A (ru) 2005-06-20
SK15962003A3 (en) 2004-10-05
DE20122035U1 (de) 2004-05-13
TR200302237T1 (tr) 2004-12-21
CA2451590A1 (en) 2003-01-03
ES2320092T3 (es) 2009-05-19
WO2003001856A1 (de) 2003-01-03
HUP0401456A2 (en) 2004-10-28
DE50114631D1 (de) 2009-02-12
PL374148A1 (pl) 2005-10-03
JP2004531040A (ja) 2004-10-07
EP1400156A1 (de) 2004-03-24
ATE419734T1 (de) 2009-01-15

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