WO2012164588A1 - Dispositif électronique à rendement élevé conçu pour la mise en marche et l'alimentation électrique de lampes - Google Patents

Dispositif électronique à rendement élevé conçu pour la mise en marche et l'alimentation électrique de lampes Download PDF

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Publication number
WO2012164588A1
WO2012164588A1 PCT/IT2011/000182 IT2011000182W WO2012164588A1 WO 2012164588 A1 WO2012164588 A1 WO 2012164588A1 IT 2011000182 W IT2011000182 W IT 2011000182W WO 2012164588 A1 WO2012164588 A1 WO 2012164588A1
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WO
WIPO (PCT)
Prior art keywords
capacitor
bridge
series
rectifier
output
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.)
Ceased
Application number
PCT/IT2011/000182
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English (en)
Inventor
Giacomo Carlucci
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.)
GIACOMO Srl
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GIACOMO Srl
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 GIACOMO Srl filed Critical GIACOMO Srl
Priority to PCT/IT2011/000182 priority Critical patent/WO2012164588A1/fr
Publication of WO2012164588A1 publication Critical patent/WO2012164588A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • H05B41/16—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
    • H05B41/18—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 a 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
    • H05B41/02—Details
    • H05B41/04—Starting switches
    • H05B41/048—Starting switches using electromagnetic relays

Definitions

  • the present invention relates to the lighting industry, and in particular to an novel turning on and power supplying device for fluorescent lamps, to be used as a replacement of the current starter and reactor used for such lamps.
  • the neon lamp is a type of discharge lamp constituted by a transparent glass bulb containing neon gas at low pressure.
  • the fluorescent lamps used for lighting homes and offices, are erroneously referred to as "fluorescent lights". Unlike the former, however, the properly called neon lamps emit a low intensity orange light and are used more for signaling than lighting purposes.
  • the fluorescent lamp is a particular type of discharge lamp in which the visible light emission is indirect, i.e. it's not directly emitted by the ionized gas, but from a fluorescent material (hence the name) .
  • this type of lamps are erroneously called neon lamps or neon tubes, but they do not always contain neon and in fact their functioning is mainly due to the presence of mercury vapor and fluorescent materials, and not to neon.
  • a fluorescent lamp is constituted by a glass tube, which can be linear, circular or variously shaped (in particular CFL lamps, Compact Fluorescent Lamp, which have the tube shaped so as to have a reduced size and typically they integrate the power supply electronics and are equipped with E27 base) inside which the vacuum is first applied, then a noble gas (argon, xenon, neon, or krypton) at a low pressure and a small amount of liquid mercury, which evaporates in part mixing itself with the noble gas, are introduced.
  • a noble gas argon, xenon, neon, or krypton
  • the inner surface of the tube is coated with a fluorescent material, which has the appearance of a white powder.
  • a fluorescent material which has the appearance of a white powder.
  • the electrons moving between the two electrodes excite the mercury atoms comprised in the gas, energizing them so that they emit an ultraviolet radiation.
  • the fluorescent material with which the tube is covered, hit by such radiation in turn emits visible light. Since visible light has a frequency and therefore an energy lower than the ultraviolet light, the transformation produced by the fluorescent material results in an inevitable energy loss, in the form of heat, which causes the heating of the tube.
  • a different composition of the fluorescent material allows to produce a warmer or colder light.
  • the electrodes of a fluorescent tube as opposed to an incandescent lamp cannot be directly connected to the mains because, due to its typical power-current, the lamp must be powered in current limitation. For this reason, the lamp is placed in series with a device capable of limiting the current, usually an inductor, commonly referred to as reactor, which in addition allows to generate an overvoltage that facilitates the triggering, or in very rare cases a resistor is used.
  • a device capable of limiting the current usually an inductor, commonly referred to as reactor, which in addition allows to generate an overvoltage that facilitates the triggering, or in very rare cases a resistor is used.
  • reactor a device capable of limiting the current
  • Fluorescent lamps have a life expectancy greater than incandescent lamps, but their duration may be strongly affected by the number of turning on and off, unless you use an electronic drive: each of these operations, indeed, reduces the lamp life, due to the wear experienced by the electrodes.
  • the value provided by the manufacturers is generally calculated with turning on cycles of 8 hours, ranging from 12-15000 hours of tube lamps to 5-6000 hours of compact lamps.
  • the so-called starter or igniter in the lighting technology field is a device typically used in discharge lamps in order to start the operation.
  • This device causes the heating of the lamp electrodes to a temperature of about 1200-1300° K, thus initiating the process of gas ionization. Therefore, this results in the discharge which then allows the complete ionization of the gas and the steady operation of the lamp.
  • the starter must be properly calibrated to achieve a quicker and stronger turning on. This component, even though within certain limits, however, has the ability to adapt to discharge lamps of different power.
  • a first object of the present invention is to provide a single electronic device for turning on and power supplying for both traditional fluorescent (T8/T5) and cold cathode (ANTROX or similar) lamps, which achieves the integrated dual function of igniter and power supply, without the need of involving the use of starters and/or reactors.
  • a second object of the invention is to provide an electronic device which achieves an immediate turning on of the lamp without any latency period.
  • a third -object is to provide an electronic device which acts as an igniter and power supply, which is installable also at a great distance from the lamp (100 meters) to be turned on/powered.
  • a fourth object is to provide an electronic device which allows a reduction of the electromagnetic emissions even higher than 90%.
  • a fifth object is to provide an electronic device which guarantees the absence of "flickering", i.e. the flicker or shimmer of the light emitted from the lamp.
  • a sixth object is to provide an electronic device which, with the same light output, is able to reduce the energy consumption by 40% or more.
  • a seventh object is to provide an electronic device which allows to have low replacement and/or installation costs.
  • An eighth object is to provide an electronic device which is installable on all types of fluorescent lamps on the market.
  • a ninth object is to provide an electronic device capable of simultaneously power supplying more lamps, even of different types.
  • a tenth object is to provide an electronic device capable of adjusting, in direct current, the intensity of the light emitted by the lamps to which it is connected.
  • an electronic device with a circuit comprising a diode bridge rectifier (Graetz bridge) powered in A.C., for example at 220 volts, preferably through a stabilizing inductor, wherein at DC output poles of said rectifier bridge are respectively connected in parallel: a first capacitor, an optional bulb control, a load constituted by one or more lamps of any type powerable in D.C., in their turn connected in series or in parallel, a second capacitor place in series with a relay switch, which, in their entirety, are connected in parallel to the bridge rectifier, wherein the winding of that relay is connected in series with a third capacitor, which, in their entirety, are parallel to the bridge rectifier output .
  • a diode bridge rectifier Getz bridge
  • Fig. 1 schematically shows a first embodiment of the invention
  • Figs. 2, 3 and 4 are circuit diagrams related to a second, third and fourth embodiment of the invention, respectively;
  • Figs. from 5 to 8 similar to Figs. 1-4 respectively, are related to variations for powering the lamps with or without liquid mercury;
  • Figs from 9 tol3 are circuit diagrams of further variations of the second, third and fourth embodiment, provided with means of adjusting the light intensity;
  • Figs from 14 tol9 similar to the previous Figs. 9-13, show said variations with brightness adjustment applied to cold cathode lamps.
  • Figs 20-21 relate to a fifth simplified embodiment and a variant thereof, particularly suitable for powering one or more lamps each of which has limited power, respectively.
  • an electronic igniter constituted essentially of a circuit capable of being connected in parallel to one or more lighting lamp, connectable in series and/or in parallel, is contemplated comprising, in combination:
  • a bridge diode rectifier adapted to be connected to an alternating current power supply (AC) ;
  • At least one capacitor CI connected in parallel to the direct current (DC) output of the bridge rectifier
  • the winding of said relay is connected in series with a third capacitor C3 and together are placed in parallel to DC output of the rectifier bridge;
  • an optional LC control light bulb adapted to discharge the capacitor C3 when the power is off, as well as to ensure that there is a DC voltage output of the rectifier bridge.
  • said second capacitor C2 in series with said relay serves to give the initial discharge that turns the lamp on without the use of a starter or reactor.
  • a further distinctive feature of the invention consist in the fact that by varying the values of CI and LI it is possible to vary the value of the brightness emitted by the lamp.
  • a second embodiment of the invention involves the replacement of the first capacitor CI with two in-series capacitors Cla and Clb where the part of the circuit between them is connected to the second pole of the rectifier bridge AC input.
  • a third embodiment of the invention involves the in series addition on the DC output positive branch of the bridge rectifier, downstream of the capacitor CI or the pair Cla-Clb, of a second inductor L2.
  • a fourth embodiment of the invention involves the in series addition on the DC output negative branch of the rectifier bridge, downstream of the capacitor Clb, of a third inductor L3 coupled to said second inductor L2 via a common gap; as well as the replacement of this LC control light bulb with a resistor Rl, which is also intended to discharge the capacitor C3 when the device is turned off (i.e. the power is -off) .
  • the above-mentioned embodiments of the invention can be used to light lamps of various types.
  • Figs from 5 to8 some variants of the four embodiments described above provided with said polarity switch and usable with said fluorescent lamps with or without liquid mercury, are shown.
  • the polarity switch is also adapted to cause the lamp to warm uniformly.
  • Another distinctive feature of the present invention consists in the fact that it provides the ability to adjust the brightness of the lamp(s) powered by the device itself.
  • a transistor Trl is provided in series with a capacitor C4, the base of which is connected with a cursor to a resistor R2 connected in parallel with said transistors Trl and its capacitor C4 (Fig. 8).
  • Figs from 9 to 13 relate to other variants of the embodiments already described above with reference to Figs. from 2 to 4, but provided with said light intensity adjustment means now described.
  • Figs from 14 to 19 similar to the previous Figs 9-13, show said variations with brightness adjustment applied to cold cathode lamps, connected in series between them.
  • Figs 20-21 relate to a fifth embodiment and a variant thereof, simplified compared to the previous ones, which is particularly suitable for powering one or more lamps each of which has limited power: For example, no more than 25W.
  • Said variant of the fifth embodiment is characterized by the presence of the polarity switch.
  • the relay switch is absent and the capacitor C2 is connected between the AC input of the rectifier bridge and the DC positive or negative output of the same .
  • Figs 20 and 21 a normal switch for turning the device on and off is also shown.
  • the capacitor C3 and its LC lamp or resistor Rl are entirely absent.
  • the presence of one or more reactors is also used to reduce energy consumption and to make the light output steadier.
  • the target market of the system is divided into two distinct sections: the retrofitting of existing installations, and that of new installations.
  • C4 from 0.5-1 pF up to 2-3 iF and more

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

L'invention concerne un dispositif électronique à rendement élevé pour la mise en marche et l'alimentation électrique de lampes, qui est pourvu d'un circuit comprenant un redresseur à pont de diodes, ou un pont de Graetz, un CA alimenté de préférence par un inducteur de stabilisation (LI), dans lequel les pôles de sortie CC dudit pont de redresseur sont connectés en parallèle, respectivement à : un premier condensateur (CI), une charge constituée par au moins une lampe pouvant être alimentée qui est connectée au pôle de sortie (A, B) du circuit qui, à leur tour, sont connectés en série et/ou en parallèle, un second condensateur (C2) placé en série avec un commutateur relais qui, dans leur totalité sont connectés en parallèle à l'entrée du redresseur à pont, le bobinage dudit relais étant connecté en série à un troisième condensateur (C3) ; ledit bobinage et ledit troisième condensateur (C3) étant connectés en parallèle, dans leur totalité, à la sortie du redresseur à pont.
PCT/IT2011/000182 2011-05-31 2011-05-31 Dispositif électronique à rendement élevé conçu pour la mise en marche et l'alimentation électrique de lampes Ceased WO2012164588A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IT2011/000182 WO2012164588A1 (fr) 2011-05-31 2011-05-31 Dispositif électronique à rendement élevé conçu pour la mise en marche et l'alimentation électrique de lampes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2011/000182 WO2012164588A1 (fr) 2011-05-31 2011-05-31 Dispositif électronique à rendement élevé conçu pour la mise en marche et l'alimentation électrique de lampes

Publications (1)

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WO2012164588A1 true WO2012164588A1 (fr) 2012-12-06

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Country Status (1)

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WO (1) WO2012164588A1 (fr)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB604513A (en) * 1945-03-16 1948-07-06 Gen Electric Co Ltd Improvements in and relating to circuits for electric discharge lamps
US3467886A (en) * 1966-02-24 1969-09-16 Gen Electric Ballast apparatus for starting and operating arc lamps
CH482381A (fr) * 1968-08-08 1969-11-30 Detec Sa Dispositif pour l'allumage d'un tube à décharge électrique dans un gaz
US4260932A (en) * 1978-10-12 1981-04-07 Vance Johnson Method and circuit for facilitating the starting and steady state flickerless operation of a discharge lamp
DE3116510A1 (de) * 1981-04-25 1982-11-11 Franz Josef 7062 Rudersberg Prinz Gleichspannungszuendung fuer gasentladungsroehren
EP0134044A1 (fr) * 1983-09-02 1985-03-13 Siemens Aktiengesellschaft Dispositif pour l'allumage et la mise en oeuvre d'une lampe à décharge
US4553072A (en) * 1981-11-30 1985-11-12 Ceske Vysoke Uceni Technicke V Praze Circuit connected in series with a discharge valve source
US5057752A (en) * 1987-12-18 1991-10-15 Stylux-Gesellschaft Fur Lichtelektronik M.B.H. Circuit arrangement for igniting and operating gas-discharge lamps
DE4020517A1 (de) * 1990-06-27 1992-01-02 Holzer Walter Einrichtung zur versorgung von geraeten mit gleichstrom, insbesondere zum betrieb von gasentladungslampen
US5583395A (en) * 1994-10-11 1996-12-10 Lu; Chao-Cheng Fluorescent device having a fluorescent starter which precisely controls heating time and absolute synchronism of fire point
EP0748147A2 (fr) * 1995-06-05 1996-12-11 Francisco Javier Velasco Valcke Ballast électronique pour tubes fluorescents

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB604513A (en) * 1945-03-16 1948-07-06 Gen Electric Co Ltd Improvements in and relating to circuits for electric discharge lamps
US3467886A (en) * 1966-02-24 1969-09-16 Gen Electric Ballast apparatus for starting and operating arc lamps
CH482381A (fr) * 1968-08-08 1969-11-30 Detec Sa Dispositif pour l'allumage d'un tube à décharge électrique dans un gaz
US4260932A (en) * 1978-10-12 1981-04-07 Vance Johnson Method and circuit for facilitating the starting and steady state flickerless operation of a discharge lamp
DE3116510A1 (de) * 1981-04-25 1982-11-11 Franz Josef 7062 Rudersberg Prinz Gleichspannungszuendung fuer gasentladungsroehren
US4553072A (en) * 1981-11-30 1985-11-12 Ceske Vysoke Uceni Technicke V Praze Circuit connected in series with a discharge valve source
EP0134044A1 (fr) * 1983-09-02 1985-03-13 Siemens Aktiengesellschaft Dispositif pour l'allumage et la mise en oeuvre d'une lampe à décharge
US5057752A (en) * 1987-12-18 1991-10-15 Stylux-Gesellschaft Fur Lichtelektronik M.B.H. Circuit arrangement for igniting and operating gas-discharge lamps
DE4020517A1 (de) * 1990-06-27 1992-01-02 Holzer Walter Einrichtung zur versorgung von geraeten mit gleichstrom, insbesondere zum betrieb von gasentladungslampen
US5583395A (en) * 1994-10-11 1996-12-10 Lu; Chao-Cheng Fluorescent device having a fluorescent starter which precisely controls heating time and absolute synchronism of fire point
EP0748147A2 (fr) * 1995-06-05 1996-12-11 Francisco Javier Velasco Valcke Ballast électronique pour tubes fluorescents

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