EP2000011A1 - Dispositif d'utilisation d'un élément d'éclairage - Google Patents

Dispositif d'utilisation d'un élément d'éclairage

Info

Publication number
EP2000011A1
EP2000011A1 EP07711552A EP07711552A EP2000011A1 EP 2000011 A1 EP2000011 A1 EP 2000011A1 EP 07711552 A EP07711552 A EP 07711552A EP 07711552 A EP07711552 A EP 07711552A EP 2000011 A1 EP2000011 A1 EP 2000011A1
Authority
EP
European Patent Office
Prior art keywords
reference value
operating device
measurement signal
operating
memory
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
EP07711552A
Other languages
German (de)
English (en)
Other versions
EP2000011B1 (fr
Inventor
Stefan Zudrell-Koch
Günter MARENT
Horst Knoedgen
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.)
Tridonic GmbH and Co KG
Original Assignee
Tridonicatco GmbH and Co KG
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 Tridonicatco GmbH and Co KG filed Critical Tridonicatco GmbH and Co KG
Priority to EP10196385.8A priority Critical patent/EP2315506B1/fr
Publication of EP2000011A1 publication Critical patent/EP2000011A1/fr
Application granted granted Critical
Publication of EP2000011B1 publication Critical patent/EP2000011B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/382—Controlling the intensity of light during the transitional start-up phase

Definitions

  • the present invention relates to a method for operating a lighting device, on a
  • Control unit for carrying out such a method and to control gear for lighting.
  • the invention can be used, for example, for the control of gas discharge lamps, so that in the following, for reasons of simplification, the invention will be described with reference to electronic ballasts (ECGs) for gas discharge lamps. Meanwhile, the invention can equally be applied to the electronic control of other lighting means such as high-pressure lamps, light-emitting diodes, etc.
  • An integrated digital control circuit for power electronics is known, for example, from US Pat. No. 6,946,984 B2.
  • the circuit has been simplified in that various analog input signals are multiplexed by an A / D converter (English Analog-to-Digital Converter, ADC) and then processed digitally.
  • a / D converter English Analog-to-Digital Converter, ADC
  • the invention thus provides a method for operating an operating device for lighting means, in particular an electronic ballast for gas discharge lamps.
  • the light source is driven by the output of drive signals from a digital control circuit.
  • At least one analog measuring signal is fed back to the digital control circuit, where it is processed in terms of control technology, ie for the generation of drive signals dependent on the measuring signals.
  • this at least one analog measurement signal in the digital control circuit is compared with an adjustable reference value.
  • the adjustable reference value is from a central control unit of the digital control circuit specified.
  • the reference value can be fed via a D / A converter directly to a comparator, at the other input, the analog measurement signal is applied.
  • the comparator thus performs an A / D conversion, so that the output signal of the comparator can be further processed digitally.
  • the reference value can also be stored in a memory via a D / A converter, the contents of the memory being fed to a comparator, to whose other input the analog measuring signal is applied. Again, the output of the comparator is a signal that can be further processed digitally.
  • An analog memory such as a switched capacitor can be used.
  • the reference value may depend on the current operating state of the operating device and / or the current phase position of the at least one measuring signal. Also via the phase signals of the measuring signals, for example via the ratio of the phases of the lamp current and the lamp voltage, statements about the current operating state of, for example, a connected gas discharge lamp can be made.
  • a sequence control with respect to the operating states of the operating device can be implemented.
  • the central control unit can select one of several feedback measurement signals via a multiplexer, the selected measurement signal then being compared with the reference value for further evaluation.
  • the reference value can be stored from the central control unit in an external or internal memory.
  • a control unit for a lighting device which is equipped to carry out a method as stated above.
  • This control unit can be designed as a microcontroller, wired logic or as programmable logic.
  • the invention also relates to control gear for lighting, in particular electronic ballasts for gas discharge lamps and also to lights that have a light source and a control gear of this type.
  • FIG. 2 shows a sequence control, the sequence controller starting output signals depending on the current operating state and possibly also depending on a defined state within an operating state.
  • ECG electronic ballast
  • PFC Power Factor Correction
  • the PFC circuit 13 has a charging coil 15, a controllable switch 14 (for example a FET) and a diode 16.
  • a controllable switch 14 for example a FET
  • a storage capacitor 17 is charged to a substantially constant bus voltage U bus , which is usually greater than the rectified supply voltage U DC .
  • the bus DC voltage U bus is converted, for example, via an inverter 20 with controllable switches (eg FETs) 22, 23 into a high-frequency supply voltage U AC for a load circuit 18, the operating means such as the gas discharge lamp shown schematically as a variable ohmic resistance 19 includes.
  • the switch 14 of the PFC circuit 13 and the switches 22, 23 of the inverter 20 are driven by a digital control circuit 1 (which is usually provided driver circuits are not shown for ease of illustration).
  • This digital control circuit 1 thus controls the operation of the connected lamps 19.
  • the digital control circuit 1 are signals from the range of resources (such as lamp voltage, lamp current), the load circuit and the various stages of the supply voltage (U D c / Ubus, etc.) and possibly other operating parameters of the PFC circuit 13 (for example, current through the charging coil 15) is supplied.
  • the multiplicity of the returned measuring signals is designated schematically by Sl, S2, S3... Sn.
  • Control unit 2 software and / or hardware implemented control algorithm to determine the control signals 21 and output.
  • the central control unit 2 selects, for example, via multiplexer 5, 10, which of the plurality of returned analog measuring signals is to be evaluated at a defined time or during a defined period of time.
  • the central control unit controls two multiplexers 5, 10, to whose input in each case the plurality of different analog measurement signals Sl, S2, S3 ... Sn is applied.
  • the output of the multiplexers 5, 10 is in each case connected to at least one comparator 4, 12.
  • the output of the comparators 4, 12 represents a digital signal which is supplied to the central control unit 2.
  • the digital control unit 2 can then process the supplied digitized signal using defined control and regulating algorithms. As a result, it is then possible to output drive signals for different operating parameters of the supply circuit for the lighting means or the load circuit or the lighting means themselves.
  • the switches 20, 21 and 22 in the form of a pulse width modulation (PWM) 9 are driven.
  • the central digital control unit 2 the adjustable Reference value for the comparators 4, 12 pretends.
  • the digital control unit 2 outputs digital values which are converted via a digital / analog converter 3 and then either directly supplied to the second input of a comparator 4. This corresponds to a rapid dynamic change of the reference value of the comparator 4, at whose other input the analog measuring signal S1, S2, S3... Sn which is currently selected via the multiplexer channel selection is present.
  • the output signal of the D / A converter 3 can also be supplied to an analog memory such as a switchable capacitor 11, where the stored value of the analog Measurement signal thus exists as a kind of static reference value and thus "static" as a reference value for the comparator 12 is present over a longer period.
  • an analog memory such as a switchable capacitor 11
  • the dynamic comparator 4 is provided with fast variable input signal only once.
  • control unit 2 is preferably kept flexible by its operations, parameters of the control algorithm, the channel selection for the multiplexer 5, 10, etc. can be changed from the outside by appropriate default values in an internal or external memory 6, 7 stored or by a Bus line (not shown) to be supplied.
  • the digital values currently output by the control unit 2 for setting the reference value of the various comparators 4, 12 may in particular depend on the current state of the lighting means, whereby main states of the operating means 19 may again be subdivided into sub-states. This is shown schematically in FIG.
  • the reference value for the comparator may be different for the various sub-states within a main operating state of the lighting means. Within a main operating state, different reference values can therefore be output for the comparator.
  • the main operating states start (startup), preheat (preheat), ignition (ignition), normal lamp operation (run), as well as an error state (error).
  • start start
  • preheat preheat
  • ignition ignition
  • run normal lamp operation
  • error error
  • the flow control as implemented in the central control unit 2, can be sub-states D1, D2, D3, D4 exhibit.
  • a first phase and thus a first sub-state, may be the range of the peak value of a periodic signal.
  • Another sub-state could be the phase range in the range of the zero crossing of the same measurement signal. Since different requirements exist with regard to the control in the different phases mentioned (time constants, resolution, etc.), different reference values for the comparator can be output in the different phases.
  • the periodicity of the measurement signal may possibly be known, since certain measurement signals (lamp current, etc.) typical in the illuminant region have a periodicity which depends on control signals (control of an inverter of an electronic ballast, etc.) of the control unit itself.
  • a measurement in the manner of sub-sampling in such a way that, in a first period, an evaluation of a first phase (For example, the range of the peak value of the measurement signal) and in another period a different phase (eg zero crossing) is evaluated.
  • a first phase For example, the range of the peak value of the measurement signal
  • a different phase eg zero crossing
  • different periods of a measurement signal can represent sub-states in which different reference values are specified.
  • the central control unit 2 can make the following output signals depending on the current main operating state and optionally the current sub-operating state:
  • control circuit can be designed as an ASIC, microcontroller, wired logic or as programmable logic as well as hybrid embodiments thereof. List of reference numerals;

Landscapes

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

Abstract

L'invention concerne l'utilisation d'un dispositif d'utilisation d'un élément d'éclairage, notamment d'un ballast électronique de lampes à décharge gazeuse. L'élément d'éclairage est commandé par un circuit de commande numérique (1) par émission de signaux de commande. Au moins un signal de mesure analogique est ramené au circuit de commande numérique (1), comparé à une valeur de référence réglable dans le circuit de commande numérique (1), et la valeur de référence réglable est émise par une unité de commande centrale (2) du circuit de commande numérique (1). La valeur de référence dépend de l'état d'utilisation du dispositif d'utilisation et/ou de la position de phase actuelle du ou des signaux de mesure.
EP07711552A 2006-03-27 2007-02-15 Dispositif d'utilisation d'un élément d'éclairage Active EP2000011B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10196385.8A EP2315506B1 (fr) 2006-03-27 2007-02-15 Appareil de fonctionnement pour lampe

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006014062.1A DE102006014062B4 (de) 2006-03-27 2006-03-27 Betriebsgerät für Leuchtmittel
PCT/EP2007/001333 WO2007110125A1 (fr) 2006-03-27 2007-02-15 Dispositif d'utilisation d'un élément d'éclairage

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP10196385.8A Division EP2315506B1 (fr) 2006-03-27 2007-02-15 Appareil de fonctionnement pour lampe
EP10196385.8 Division-Into 2010-12-22

Publications (2)

Publication Number Publication Date
EP2000011A1 true EP2000011A1 (fr) 2008-12-10
EP2000011B1 EP2000011B1 (fr) 2012-06-27

Family

ID=37198728

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07711552A Active EP2000011B1 (fr) 2006-03-27 2007-02-15 Dispositif d'utilisation d'un élément d'éclairage
EP10196385.8A Active EP2315506B1 (fr) 2006-03-27 2007-02-15 Appareil de fonctionnement pour lampe

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP10196385.8A Active EP2315506B1 (fr) 2006-03-27 2007-02-15 Appareil de fonctionnement pour lampe

Country Status (4)

Country Link
EP (2) EP2000011B1 (fr)
CN (1) CN101411247B (fr)
DE (1) DE102006014062B4 (fr)
WO (1) WO2007110125A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8207681B2 (en) 2008-01-24 2012-06-26 Osram Ag Circuit arrangement and method for regulating the current through at least one discharge lamp

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4168453A (en) * 1977-12-28 1979-09-18 Datapower, Inc. Variable intensity control apparatus for operating a gas discharge lamp
DE4343017A1 (de) * 1993-12-16 1995-06-22 Zumtobel Licht Verfahren zum Einstellen des Summenlichts in einem Raum und Vorrichtung zur Durchführung des Verfahrens
ATE220849T1 (de) * 1997-12-23 2002-08-15 Tridonicatco Gmbh & Co Kg Elektronisches vorschaltgerät
KR100697726B1 (ko) 2000-02-10 2007-03-21 페어차일드코리아반도체 주식회사 전자식 안정기를 구비한 램프 시스템
WO2002067636A1 (fr) 2001-02-20 2002-08-29 Noontek Limited Regulateur de lampe numerique pour fonctionnement a basse frequence
EP1504530A4 (fr) 2002-04-10 2008-11-05 Systel Dev And Ind Ltd Systeme sur puce pour la commande numerique de dispositifs electroniques de puissance
WO2004030420A1 (fr) * 2002-09-25 2004-04-08 Matsushita Electric Works, Ltd. Ballast electronique pour lampe a decharge
DE102004036958A1 (de) * 2004-07-30 2006-03-23 Tridonicatco Gmbh & Co. Kg Ansteuerung von Leistungsschaltern
TWI294683B (en) * 2004-08-23 2008-03-11 Monolithic Power Systems Inc A fault protection scheme for ccfl integrated circuits
JP4581714B2 (ja) * 2005-02-01 2010-11-17 ウシオ電機株式会社 放電ランプ点灯装置
JP2006221888A (ja) * 2005-02-09 2006-08-24 Ushio Inc 放電ランプ点灯装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007110125A1 *

Also Published As

Publication number Publication date
EP2000011B1 (fr) 2012-06-27
WO2007110125A1 (fr) 2007-10-04
EP2315506B1 (fr) 2018-04-25
EP2315506A3 (fr) 2012-11-21
CN101411247A (zh) 2009-04-15
DE102006014062B4 (de) 2018-05-17
DE102006014062A1 (de) 2007-10-04
CN101411247B (zh) 2013-01-30
EP2315506A2 (fr) 2011-04-27

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