WO2007104666A1 - Ballast régulé pour une lampe - Google Patents

Ballast régulé pour une lampe Download PDF

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Publication number
WO2007104666A1
WO2007104666A1 PCT/EP2007/052054 EP2007052054W WO2007104666A1 WO 2007104666 A1 WO2007104666 A1 WO 2007104666A1 EP 2007052054 W EP2007052054 W EP 2007052054W WO 2007104666 A1 WO2007104666 A1 WO 2007104666A1
Authority
WO
WIPO (PCT)
Prior art keywords
lamp
converter
control
current
voltage
Prior art date
Application number
PCT/EP2007/052054
Other languages
German (de)
English (en)
Inventor
Olaf Busse
Original Assignee
Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH
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 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH filed Critical Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH
Publication of WO2007104666A1 publication Critical patent/WO2007104666A1/fr

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
    • H05B41/39—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
    • H05B41/3925—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by frequency variation
    • 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
    • H05B41/298—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2981—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • 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 relates to an electronic Vorschaltge ⁇ advises for a lamp with a control circuit for controlling the lamp operation and a corresponding Radiofah ⁇ ren.
  • Lamp current regulations are known, but also power regulations.
  • lamps of various types in particular discharge lamps ⁇ , especially low-pressure discharge lamps, through influencing on a forced control of a converter in the ballast, for example, regulated to a rated lamp current.
  • a transducer such as a transistor half bridge ⁇ to change and thus to work in different proximity to the natural frequency of the lamp containing the load and the resonant circuit.
  • the present invention is based on the technical problem of specifying a regulated electronic ballast for a lamp and a corresponding operating method with improved control options.
  • the invention relates to an electronic on ⁇ switching device for a lamp with a converter for generating a supply power for the lamp, a controller for forced control of the converter, means for measuring a lamp operating variable and a regulating scarf ⁇ processing for controlling the lamp operation to the Lampenbe ⁇ drive size, which is adapted to influence the control of the converter, characterized by a one ⁇ device for measuring the lamp voltage as a further Lamp operating variable, wherein the control circuit is adapted to determine from a determined for the control circuit lamp operating variable and the lamp voltage, a third lamp operating variable,
  • the ballast according to the invention is characterized in that a lamp voltage measuring device is present. This makes it possible to determine driven from the measured lamp voltage together with the for the control circuit is measured anyway lamp current or the lamp power is measured anyway for the other size count ⁇ .
  • the ballast can be used for example as a uniform ballast both for applications in which a current control is preferred, as well as for those in which a power control is preferred.
  • Another way to take advantage of the invention can consist in each third erstoff ⁇ te size for certain monitoring tasks heranzuzie ⁇ hen, thus in particular in the simplest case with a LAM penstromregelung a power limit or at a lamp power control a current limiting effetzumate- ren ,
  • an intermediate circuit voltage measuring device is provided.
  • This can be particularly advantageously combined with ei ⁇ ner power factor correction circuit, such as a high-setting divider or a SEPIC converter, apply for an intermediate circuit voltage measurement is necessary in any case and for very different reasons than necessary with regard to the regulation of the lamp operation or beneficial is.
  • the DC link voltage together with a determination of the current absorbed by the converter, can be used to determine the power.
  • the current is directly determined by one of the switching transistors of the converter, in particular one of the switching transistors of a half-bridge converter.
  • a measuring resistor for example via an AC element made.
  • Micro- controller is, therefore, approximately a programmable digital circuit Steue ⁇ employed. This microcontroller can take over the functions of the control and the control circuit, and also control an optional power factor correction circuit.
  • the microcontroller or even a different realization of the ballast control may have a functionality to detect the type to be powered lamp on ⁇ . For example, can via spiral resistors discharge lamps or other ways an assignment of a connected lamp are made to specific lamp types or type classes, then the advantages that switching device in the operation on the lamp type one ⁇ ask. In particular, it is possible to regulate certain current values or power values, or else to choose between a current control or a power control.
  • power controls may be appropriate for such lamps, which may be identified in type with respect to their performance, whereas in other lamps, only a distinction as to the correct lamp current may be possible.
  • An example is of different lengths, but otherwise practically identical discharge lamps, which accordingly operate with identical lamp currents. ben, but depending on their length different lamp voltages and thus also show lamp performance. If an assignment to such a type class, the ballast according to the invention can then set a current control, because the true performance can not be detected.
  • the figure shows a schematic block diagram of a ballast according to the invention.
  • the block diagram shown in the figure shows on the left a block denoted by Gl, which is provided with a conventional
  • Mains voltage is supplied and rectifies this.
  • the rectified AC voltage output to the right supplies a boost converter composed of an inductance L 1, a diode D 1, a storage capacitor C 1 and a switching transistor T 3 (MOSFET).
  • the switching transistor T3 is controlled by a Rocontroller horrung ⁇ C controlled, the information about the zero crossing of the mains voltage via a to the inductance Ll of the boost converter secondary measurement ⁇ development L2 and a downstream resistor Rl receives information. Furthermore, the microcontroller .mu.C receives a measuring signal via the intermediate circuit voltage via a voltage divider circuit R2, R3, which drops across the storage capacitor Cl of the boost converter. This measuring signal is the voltage dropping across R3 against the reference potential of the circuit prevailing in the horizontal branch in the figure below.
  • the microcontroller control circuit ⁇ C controls two switching transistors Tl and T2 of a conventional half-bridge converter for the operation of the low-pressure discharge lamp L marked on the bottom right.
  • the half-bridge is driven by the intermediate circuit voltage on the storage capacitor Cl supplies and switches through an alternating switching ⁇ operation of the two transistors Tl and T2 the center tap between them between the two corresponding potentials back and forth.
  • the center tap creates the upper terminal of the lamp L, a high-frequency alternating potential at ⁇ , wherein the lower lamp terminal to Be ⁇ reference potential is.
  • a resonant capacitor C2 and egg ne lamp inductor L3 are connected in a conventional manner, the same way as a lam ⁇ penparalleler capacitor C3 to the usual Lastnikbe- circuit of low-pressure discharge lamps include.
  • the current is bridge converter through the half ⁇ for a concretely al tapped through the lower GmbHtransis- tor T2 via a shunt resistor R4 against dustspotenti ⁇ and telt time averaged via an RC averaging circuit with the capacitor C4 and the resistor R5.
  • the corresponding signal goes to the input of the microcontroller, designated "In I_out".
  • the lamp voltage via a voltage divider circuit of the resistors R6 and R7 as a voltage drop across the resistor R7 against reference potential ist ⁇ attacks, using the diodes D2 and D3 and the capaci ⁇ tors C5 determined as the peak detection and to those designated by "In V_lamp" Input of the microcontroller circuit ⁇ C given.
  • the diode D2 prevents übri ⁇ gens an overvoltage on the diode D3 when it locks.
  • the microcontroller control ⁇ C has the intermediate circuit voltage (V_bus) and that of the half-bridge voltage converter absorbed current (I_out), so that, hen beau ⁇ not further relevant here losses in the transformer, the lamp power as a product and as Lampenbe ⁇ drive size within the meaning of the claims can be determined.
  • the lamp voltage (V_lamp) is present as a further lamp operating variable, so that it is also possible to determine the lamp current as the third lamp operating variable from the power and the lamp voltage by division. It should be noted that the lamp current itself would be measured only with a little more effort or losses.
  • the microcontroller ⁇ C has thus, with the proviso that the function of the boost converter as power factor correction circuit is desired anyway, with minimal additional effort through the components R3 to R7, C4, C5, D2, D3 the current operating data of the lamp L available and can accordingly optionally perform a power control or current control, both of which can be combined with a limitation of each Weil ⁇ other lamp operating value.
  • the embodiment requires no additional Ver ⁇ stronger and leads to minimal additional component costs.
  • Components that are suitable for the microcontroller control ⁇ C often already have multiplication or division commands. If these are not given, for example, a divisional command leads only to a relatively limited additional effort of about 150 bytes of program memory.
  • microcontroller .mu.C in a manner not to be explained in detail and known per se, is able to do so by polling the filament resistors make an assignment of the type of discharge lamp L to bestimm ⁇ th type classes and to make the selection between the control types and control parameters accordingly.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

L'invention concerne un ballast pour une lampe et un mode de fonctionnement de lampe, selon lequel une mesure de tension de lampe permet de déterminer la puissance de la lampe à partir du courant de lampe ou bien le courant de la lampe à partir de la puissance de la lampe, à des fins de régulation, y compris de limitation de la régulation.
PCT/EP2007/052054 2006-03-15 2007-03-05 Ballast régulé pour une lampe WO2007104666A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610011970 DE102006011970A1 (de) 2006-03-15 2006-03-15 Geregeltes Vorschaltgerät für eine Lampe
DE102006011970.3 2006-03-15

Publications (1)

Publication Number Publication Date
WO2007104666A1 true WO2007104666A1 (fr) 2007-09-20

Family

ID=38122358

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/052054 WO2007104666A1 (fr) 2006-03-15 2007-03-05 Ballast régulé pour une lampe

Country Status (2)

Country Link
DE (1) DE102006011970A1 (fr)
WO (1) WO2007104666A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8242702B2 (en) 2008-05-16 2012-08-14 Infineon Technologies Austria Ag Method for driving a fluorescent lamp, and lamp ballast

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008027029A1 (de) * 2008-06-06 2009-12-10 Tridonicatco Gmbh & Co. Kg Lampentyperkennung durch Leistungsfaktorkorrekturschaltung
DE102008031409A1 (de) * 2008-07-02 2010-01-07 Tridonicatco Gmbh & Co. Kg Erkennung des Typs einer an einem Betriebsgerät angeschlossenen Gasentladungslampe
DE102008047440A1 (de) * 2008-09-16 2010-03-25 Tridonicatco Gmbh & Co. Kg Bestimmung des Typs eines Leuchtmittels oder der Topologie mehrerer Leuchtmittel
WO2011070470A1 (fr) * 2009-12-08 2011-06-16 Koninklijke Philips Electronics N.V. Procede et dispositif pour exciter une lampe fluorescente
DE102011082239B3 (de) * 2011-09-07 2013-01-17 Osram Ag Elektronisches Vorschaltgerät und Verfahren zum Betreiben einer Entladungslampe

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0338109A1 (fr) * 1988-04-20 1989-10-25 Zumtobel Aktiengesellschaft Convertisseur pour lampe à décharge
EP0429402A2 (fr) * 1989-10-20 1991-05-29 MARELLI AUTRONICA S.p.A. Dispositif pour alimenter des lampes à décharge dans des véhicules à moteur
EP0461441A1 (fr) * 1990-06-06 1991-12-18 Zumtobel Aktiengesellschaft Procédé et circuit pour régler l'intensité lumineuse (atténuer) de lampes à décharge
EP0688152A1 (fr) * 1994-06-15 1995-12-20 STMicroelectronics S.A. Circuit de commande de commutation et dispositif de commande pour lampe fluorescente à basse pression
EP0774885A1 (fr) * 1995-11-07 1997-05-21 Koninklijke Philips Electronics N.V. Circuit
DE19613257A1 (de) * 1996-01-26 1997-07-31 Tridonic Bauelemente Verfahren und elektronische Steuerschaltung zum Regeln des Betriebsverhaltens von Gasentladungslampen
WO1998039950A1 (fr) * 1997-03-04 1998-09-11 Tridonic Bauelemente Gmbh Procede et dispositif pour reguler le fonctionnement des lampes a decharge gazeuse
WO2000007415A1 (fr) * 1998-07-29 2000-02-10 Koninklijke Philips Electronics N.V. Ballast electronique
WO2006056918A1 (fr) * 2004-11-24 2006-06-01 Koninklijke Philips Electronics N.V. Circuit d'attaque de lampe a decharge haute intensite avec commande de reaction de tension

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0338109A1 (fr) * 1988-04-20 1989-10-25 Zumtobel Aktiengesellschaft Convertisseur pour lampe à décharge
EP0429402A2 (fr) * 1989-10-20 1991-05-29 MARELLI AUTRONICA S.p.A. Dispositif pour alimenter des lampes à décharge dans des véhicules à moteur
EP0461441A1 (fr) * 1990-06-06 1991-12-18 Zumtobel Aktiengesellschaft Procédé et circuit pour régler l'intensité lumineuse (atténuer) de lampes à décharge
EP0688152A1 (fr) * 1994-06-15 1995-12-20 STMicroelectronics S.A. Circuit de commande de commutation et dispositif de commande pour lampe fluorescente à basse pression
EP0774885A1 (fr) * 1995-11-07 1997-05-21 Koninklijke Philips Electronics N.V. Circuit
DE19613257A1 (de) * 1996-01-26 1997-07-31 Tridonic Bauelemente Verfahren und elektronische Steuerschaltung zum Regeln des Betriebsverhaltens von Gasentladungslampen
WO1998039950A1 (fr) * 1997-03-04 1998-09-11 Tridonic Bauelemente Gmbh Procede et dispositif pour reguler le fonctionnement des lampes a decharge gazeuse
WO2000007415A1 (fr) * 1998-07-29 2000-02-10 Koninklijke Philips Electronics N.V. Ballast electronique
WO2006056918A1 (fr) * 2004-11-24 2006-06-01 Koninklijke Philips Electronics N.V. Circuit d'attaque de lampe a decharge haute intensite avec commande de reaction de tension

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8242702B2 (en) 2008-05-16 2012-08-14 Infineon Technologies Austria Ag Method for driving a fluorescent lamp, and lamp ballast

Also Published As

Publication number Publication date
DE102006011970A1 (de) 2007-09-20

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