EP2116108B1 - Ballast électronique pour une lampe - Google Patents

Ballast électronique pour une lampe Download PDF

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Publication number
EP2116108B1
EP2116108B1 EP08707292.2A EP08707292A EP2116108B1 EP 2116108 B1 EP2116108 B1 EP 2116108B1 EP 08707292 A EP08707292 A EP 08707292A EP 2116108 B1 EP2116108 B1 EP 2116108B1
Authority
EP
European Patent Office
Prior art keywords
lamp
electronic ballast
dimming value
input
setting
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.)
Not-in-force
Application number
EP08707292.2A
Other languages
German (de)
English (en)
Other versions
EP2116108A2 (fr
Inventor
Michael Hani
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.)
Osram GmbH
Original Assignee
Osram 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 Osram GmbH filed Critical Osram GmbH
Publication of EP2116108A2 publication Critical patent/EP2116108A2/fr
Application granted granted Critical
Publication of EP2116108B1 publication Critical patent/EP2116108B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20—Responsive to malfunctions or to light source life; for protection
    • H05B47/21—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in parallel
    • H05B47/22—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in parallel with communication between the lamps and a central unit

Definitions

  • the invention relates to an electronic ballast for a lamp.
  • the electronic ballast is to allow the lamp to be dimmed due to an external control. For this purpose, it must have a dimming value control input and be provided with means for setting a dimming value of the lamp (for the supply of the same with voltage or current).
  • the electronic ballast according to another aspect of the invention should also be able to detect a lamp failure and communicate it to the outside. For this purpose, it must include means for detecting a lamp fault (ie detecting whether the lamp is faulty or not) and a lamp fault detection input.
  • a lamp fault ie detecting whether the lamp is faulty or not
  • one and the same electronic ballast combines the mentioned characteristics of lamp dimming capability and lamp fault detection both.
  • a setting of the dimming value takes place via a unidirectional dimming interface, for example a 1... 10 V interface.
  • the dimming value is determined by the magnitude of a voltage applied between two dimming value control inputs of the interface or the level of a current flowing across the interface.
  • DALI devices As an alternative to the unidirectional dimming interface, DALI devices (where DALI stands for “Digital Addressable Lighting Interface”) have bidirectional dimming interfaces that typically operate digitally. Accordingly, a dimming value control input must be given a binary number for controlling the dimming value, for example, a "0" for an off lamp and the numbers 1 to 254 dimming values, which determine the brightness of the lamp.
  • a circuit arrangement is known that includes a microchip that can be driven with simple signal switches, and then switch or dim a load due to the switch inputs.
  • the object of the present invention is to provide an electronic ballast for a lamp, the use of which does not require the provision of a complex control unit.
  • the electronic ballast according to claim 1 comprises, at a position downstream of the dimming value control input, means for detecting a signal output state in which the signal level of a signal supplied to the dimming value control input exceeds a (first) predetermined threshold and / or in which it has a (second) predetermined threshold falls below, and it further comprises means for measuring the duration of each detected signal output state.
  • the means for setting a dimming value of the lamp are then designed according to the invention to set the dimming value on the basis of the measured duration of the signal output state.
  • the lamp error detection input is designed to serve for the passage of electrical current. Further, means for setting a transmission condition coupled to the means for detecting the lamp failure are provided depending on whether or not the lamp failure has been detected.
  • An electronic ballast thus does not operate with digital signals, by means of which a control device is notified of the detection of a lamp fault. Rather, only a corresponding voltage must be applied (for example between lamp error detection input and ground).
  • the means for setting a transmission condition then release the conduction, or not, depending on the occurrence of a lamp failure. If a plurality of such electronic ballasts are connected in parallel to a voltage source, a central control unit can measure the flowing electric current and determine, based on the current intensity, how many of the electronic ballasts make it possible to pass through and how many Not. This can be used to determine how many electronic ballasts have detected a lamp failure.
  • the passage of power in the event of a lamp failure is possible and usually prevents the lamp is working properly, prevented. But it can also be reversed, the passage normally provided for error-free operation of the lamp and be suppressed in the event of a lamp failure.
  • the electronic ballast according to the first aspect with the single dimming value control input and the electronic ballast according to the second aspect of the invention with the single lamp error detection input is thus common that the provision of a small number of inputs is made possible. Furthermore, both aspects have in common that the respectively required control devices can be of simple construction.
  • the dimming value control input and the lamp error detection input are exactly the same input.
  • a measure must be taken as the functionalities can be separated from each other. This happens because the means of detecting a Signaling state and the means for setting a transmission condition are coupled together. Beyond previous situations of preventing the passage of current mentioned in the claims 2 and 3, it is then provided that the means for adjusting prevent the passage of current regardless of the occurrence of a lamp failure as long as the signal output state is detected.
  • An in Fig. 1 shown non-inventive electronic ballast 20, also referred to as operating device, has two inputs for the power supply on, which are denoted by 1 and 2, and a ground terminal, which is denoted by 4.
  • Outputs 21, 22, 26 and 27 lead to the light source, for example to a lamp to be driven by the electronic ballast.
  • the electronic ballast makes it possible not only to turn the light only on or off, but also to dim, so operate with less than maximum light value.
  • the way in which the electronic ballast is now informed how strong the lamp is to be dimmed is now a special feature of the electronic ballast according to the invention.
  • the electronic ballast comprises a single dimming input, which is denoted in the present case with 6 and is marked for explanation with the letters "DIM".
  • the light value setting is now carried out by applying a specific level to the input 6 for a predetermined duration.
  • a unit 10 in the electronic ballast detects whether there is a so-called signal output state, ie whether the level at the input 6 has exceeded a predetermined limit or not.
  • a measuring unit 12 detects how long the signal transmission state exists. Subordinate to the measuring unit is a unit 14, which now performs the appropriate control at the outputs 21, 22, 26 and / or 27, which lead to the bulb.
  • the unit 14 detects the value measured by the unit 12 concerning the duration of the signal output state and interprets this as a dimming value. Accordingly, the light source is controlled by this unit 14.
  • a unit 18 is coupled to the unit 16.
  • the unit 18 controls a connection between an input 7 and one of the terminals 1 and 2, preferably that which is connected to the neutral.
  • the input 7 is used to report a bulb failure to an external controller and is therefore also marked with "LF" for bulbs (or even lamp errors).
  • Characteristic of the electronic ballast according to the invention is that a current can flow through the input 7. It is now envisaged that this current will flow just when a lighting failure has occurred, and not flow precisely when the lighting means is intact.
  • the unit 18 connected between the input 7 and the input 1 or 2 serves to set a transmission condition depending on whether the unit 16 has detected a lamp failure or not.
  • Fig. 2 illustrates how a plurality of non-inventive operating devices 20 in the manner of in Fig. 1 shown not in accordance with the invention operating device can be connected in an array.
  • Each operating device 20 is associated with a lamp 22 as a light source. It is a control unit 24 provided for all operating devices. There is the coupling to a conventional power supply with three phase conductors L1 to L3, the neutral N and the ground PE. All operating devices are with the neutral conductor N and connected to the earth PE. The operating devices are alternately connected to the different phase conductors L1, L2 and L3, so that not one of the phases is too heavily loaded.
  • the control unit 24 is connected by way of example to the phase conductor L1, in addition to the connection to the neutral conductor N and the earth PE.
  • Additional lines DIM are provided for setting the light value and LF for detecting the illuminant error.
  • controls 26 are coupled.
  • the control unit 24 is optionally also coupled to an upstream building management control 28.
  • the dimming input DIM input 6 off Fig. 1
  • the operating elements 26 may comprise, for example, conventional pushbuttons as known for dimming value presetting and which the operator must press for a predetermined period of time.
  • the operating devices (electronic ballasts) 20 may be designed so that the respective units 14 are already active as long as the level is detected, so that the operator almost directly by pressing a button 26 causes the dimming of the light source 22 on one of the operating devices 20.
  • the control unit is also connected to a separate conductor LF for detecting the illuminant error. Through this conductor electricity should be able to flow.
  • the individual operating devices 20 allow, as explained above, the passage of current through the input 7 (LF) in the event that a bulb error has occurred.
  • the controller 24 should now be designed to measure how high the over the line LF is flowing electricity.
  • Each of the operating devices 20, which has a lighting failure, draws a predetermined amount of current. From the total amperage can thus be concluded that the number of operating devices, which have detected a bulb error.
  • a single input in the present case the input 7, serves both for setting the light value and for detecting the illuminant error.
  • This input is accordingly labeled "DIM + LF".
  • the electronic ballast 20 ' is basically constructed in the same way as above to the operating device 20 Fig. 1 are explained, ie, the units 10, 12 and 14 are now downstream of the input of the DIM + LF, as well as the unit 16 coupled to the unit 18. So there are no conflicts between the functions of adjusting the dimming value and the notification of the illuminant error are the units 10 and 18 are coupled together. If the unit 10 detects that there is a signal output state, the light value specification is given precedence over the notification of the illuminant error, and the unit 18 inhibits the flow of current via the input 7.
  • FIG Fig. 4 An arrangement of a plurality of such operating devices 20 'according to the invention is shown in FIG Fig. 4 shown. Since the inputs DIM + LF of the operating device 20 are combined at the operating device 20 'to the input DIM + LF are, there is only a single line DIM + LF, which is connected to these inputs, and the control unit 24 is also changed to the control unit 24 ', which has only a single output DIM + LF to the line DIM + LF. Incidentally, the operating devices 20 'are connected in the same way to the conductors as the operating devices 20 are made Fig. 2 ,
  • the invention provides, on the one hand, an easy way to specify the dimming value, namely simple pushbuttons 26, the unit 10 only having to differentiate between two states, namely the signal output state and the non-signal output state, the unit 12 then the duration of the existence of the signal output state must measure, in which case the dimming value for the unit 14 is specified.
  • the detection of the illuminant error is no longer via digital signals as in the prior art, but via a flowing stream, the control units 24 and 24 'can easily measure. It merely has to be ensured that a unit 18 determines the conduction condition for the current as a function of a luminous means error determined by the unit 16.

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)

Claims (3)

  1. Ballast électronique (20, 20') pour une lampe (22), comprenant au moins une entrée de commande de la valeur de gradation (DIM) et comprenant des moyens (14) destinés à régler la valeur de gradation de la lampe (22),
    les moyens suivants étant installés en aval de l'entrée de commande de la valeur de gradation (DIM) :
    - moyens (10) destinés à enregistrer un état de sortie de signal, dans lequel la hauteur de signal d'un signal amené à l'entrée de commande de la valeur de gradation (DIM) dépasse une valeur limite prédéterminée et/ou dans lequel elle est inférieure à une valeur limite prédéterminée,
    - moyens (12) destinés à mesurer la durée d'un état de sortie de signal,
    les moyens (14) destinés à régler une valeur de gradation de la lampe (22) étant configurés pour régler la valeur de gradation en raison de la durée mesurée de l'état de sortie de signal,
    le ballast électronique (20, 20') présentant au moins une entrée d'enregistrement d'erreur de lampe (LF) et des moyens (16) destinés à enregistrer une erreur de lampe et caractérisé en ce que
    l'entrée d'enregistrement d'erreur de lampe (LF) est configurée pour servir à la conduction du courant électrique, et en ce que des moyens (18), couplés aux moyens (16) destinés à enregistrer l'erreur de lampe, permettant de régler une condition de conduction en fonction du fait si une erreur de lampe a été enregistrée ou non, sont fournis,
    l'entrée de commande de la valeur de gradation et l'entrée d'enregistrement d'erreur de lampe étant la même entrée (DIM + LF), les moyens (10) destinés à enregistrer un état de sortie de signal et les moyens (18) destinés au réglage interdisant la conduction de courant indépendamment de l'apparition d'une erreur de lampe tant que l'état de sortie de signal est enregistré.
  2. Ballast électronique (20) selon la revendication 1,
    caractérisé en ce que
    les moyens (18) destinés au réglage permettent la conduction en cas d'une erreur de lampe et l'interdisent au cas où la lampe fonctionne sans erreur.
  3. Ballast électronique (20, 20') selon la revendication 1,
    caractérisé en ce que
    les moyens (18) destinés au réglage permettent la conduction au cas où la lampe fonctionne sans erreur et l'interdisent en cas d'une erreur de lampe.
EP08707292.2A 2007-02-07 2008-01-25 Ballast électronique pour une lampe Not-in-force EP2116108B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007006181A DE102007006181A1 (de) 2007-02-07 2007-02-07 Elektronisches Vorschaltgerät für eine Lampe
PCT/EP2008/000583 WO2008095618A2 (fr) 2007-02-07 2008-01-25 Ballast électronique pour une lampe

Publications (2)

Publication Number Publication Date
EP2116108A2 EP2116108A2 (fr) 2009-11-11
EP2116108B1 true EP2116108B1 (fr) 2014-03-26

Family

ID=39471821

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08707292.2A Not-in-force EP2116108B1 (fr) 2007-02-07 2008-01-25 Ballast électronique pour une lampe

Country Status (6)

Country Link
US (1) US8358086B2 (fr)
EP (1) EP2116108B1 (fr)
CN (1) CN101578920B (fr)
DE (1) DE102007006181A1 (fr)
TW (1) TWI444105B (fr)
WO (1) WO2008095618A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111295008B (zh) * 2020-03-18 2021-11-23 中冶置业集团有限公司 一种安防照明控制系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19644971A1 (de) * 1996-10-29 1998-05-07 Ridi Leuchten Gmbh Einrichtung zur Konstantlichtregelung
US6249089B1 (en) * 1998-10-09 2001-06-19 Frederick Bruwer Intelligent electrical device comprising microchip
WO2003071836A1 (fr) * 2002-02-20 2003-08-28 Matsushita Electric Industrial Co., Ltd. Dispositif d'eclairage de lampe a decharge sans electrode, lampe fluorescente sans electrode de type ampoule, et dispositif d'eclairage de lampe a decharge
CN1802783A (zh) * 2003-03-18 2006-07-12 国际整流器公司 高强度放电灯的镇流器电路
KR20080011226A (ko) * 2005-05-10 2008-01-31 코닌클리즈케 필립스 일렉트로닉스 엔.브이. 범용 라인 전압 디밍 방법 및 시스템

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LUGER S ET AL: "BELEUCHTUNG WIRD BUSFAEHIG", ELEKTRONIK, IRL PRESS LIMITED, DE, vol. 41, no. 26, 22 December 1992 (1992-12-22), pages 26 - 30, XP000327405, ISSN: 0013-5658 *

Also Published As

Publication number Publication date
CN101578920B (zh) 2013-08-14
EP2116108A2 (fr) 2009-11-11
TW200845821A (en) 2008-11-16
TWI444105B (zh) 2014-07-01
CN101578920A (zh) 2009-11-11
WO2008095618A3 (fr) 2008-11-20
WO2008095618A2 (fr) 2008-08-14
US8358086B2 (en) 2013-01-22
DE102007006181A1 (de) 2008-08-14
US20100026212A1 (en) 2010-02-04

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