EP2263421B1 - Recognition of the configuration of a connection of an illumination means operating device - Google Patents

Recognition of the configuration of a connection of an illumination means operating device Download PDF

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Publication number
EP2263421B1
EP2263421B1 EP09726705.8A EP09726705A EP2263421B1 EP 2263421 B1 EP2263421 B1 EP 2263421B1 EP 09726705 A EP09726705 A EP 09726705A EP 2263421 B1 EP2263421 B1 EP 2263421B1
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EP
European Patent Office
Prior art keywords
voltage
connection
mains voltage
operating device
mains
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EP09726705.8A
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German (de)
French (fr)
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EP2263421A1 (en
Inventor
Eduardo Pereira
Martin Huber
Michael Zimmermann
Frank Horn
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Tridonic AG
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Tridonic AG
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Publication of EP2263421A1 publication Critical patent/EP2263421A1/en
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    • 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
    • H05B41/2983—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against abnormal power supply 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

  • the present invention relates to control gear or electronic ballasts that can operate different bulbs such as gas discharge lamps or LEDs.
  • the invention relates to such an operating device, in which the user can perform a specification with respect to the type, in particular the wattage (power class) of the lamp to be operated by occupying one of two inputs, in particular by connecting a mains voltage.
  • the operating device must recognize the assignment, in particular with mains voltage and selects depending on operating parameters for a connected light source.
  • Such operating devices are often called multi-lamp devices.
  • the patent US2002 / 0180378A1 discloses an operating device which has, in addition to the mains voltage connection, an additional control connection for selectively occupying the mains voltage. By means of a galvanically isolated detection of an applied mains voltage at the control connection, the operating device can select operating parameters for the light sources.
  • Electronic ballasts for gas discharge lamps can also have at least two different terminals on the input side for connecting a mains voltage (one per selectable lamp type), so that the user can specify the lamp type to be operated or the wattage to be operated via the mains voltage connection.
  • a mains voltage one per selectable lamp type
  • the invention has for its object to provide a technique for detecting the occupation of a terminal of a control gear for lighting.
  • an electronic ballast for operating a light source, in particular a gas discharge lamp has at least two voltage connections for connecting a mains voltage.
  • the ballast has a transformer whose primary winding is connected to one of the voltage terminals. A saturation or at least an impedance change of this primary winding occurs accordingly when the mains voltage is applied to this voltage terminal. In contrast, a saturation or impedance change of this primary winding does not occur if no mains voltage is present at the voltage connection.
  • the ballast has a circuit for detecting the saturation or an impedance change of this primary winding. According to the general idea of the invention, the application of a mains voltage is carried out with potential separation.
  • the detection of the saturation or an impedance change of the primary winding can be done by evaluating the impedance of the secondary winding of the transformer, in particular by a control unit.
  • the secondary winding can be supplied with a reference voltage.
  • a power source can be used in series with the Secondary winding can be selectively turned on, and in particular selectively turned on and off.
  • a control unit can evaluate the voltage or current profile of the secondary winding.
  • the evaluation of the impedance of the secondary winding can be carried out during at least one half-wave of the mains voltage or during two or more half-cycles of the mains voltage.
  • connection of the mains voltage to the first or second voltage connection can represent a first or second logic state.
  • connection of the mains voltage to the first and second voltage connection may indicate a first or second lamp type.
  • the electronic ballast may have a memory unit for storing the determined logic state or lamp type.
  • a circuit arrangement for detecting the connection of a voltage to a voltage terminal has two connections for connecting a transformer.
  • the primary winding of the transformer is connected to the power connection.
  • a saturation or impedance change of this primary winding only occurs when the voltage is applied to the voltage connection.
  • the circuit arrangement has means for detecting the saturation or impedance change of the primary winding.
  • the circuit arrangement can preferably be designed in the form of an ASIC (application-specific integrated circuit).
  • ASIC application-specific integrated circuit
  • An inventive ballast preferably has two different terminals on the input side for connecting the mains voltage, so that the user can specify the wattage to be operated via the mains voltage connection.
  • a transformer is provided, whose primary winding is connected to a mains voltage connection.
  • the transformer is designed to saturate the primary winding.
  • the impedance of the secondary winding of the transformer is assessed. There are several methods for this.
  • the decisive factor is the evaluation of a parameter that depends on the impedance of the secondary winding of the transformer.
  • the evaluation can be integrated into an ASIC.
  • the secondary winding is supplied with a reference voltage.
  • a switch is selectively closed via a predetermined signal from the ASIC to the resulting voltage or current waveform evaluate. After a single decision as to which terminal is connected, the switch on the secondary side is opened. The decision regarding the wattage selected by the user via the power terminals can be saved.
  • the evaluation of the impedance on the secondary side must be sufficiently long to ensure that the evaluation is not carried out in the area of the zero crossing of the mains voltage. Preferably, for example, a period of several half-waves is evaluated.
  • the galvanic isolation between the mains voltage and the means for evaluating whether there is a mains voltage is provided by the transformer.
  • existing elementary blocks or units of an ASIC, such as comparator or power source, can be used.
  • the invention also relates to a method for detecting the occupation of a connection of a control device for lighting devices with mains voltage, wherein the terminal is connected to a coil which is saturated when the mains voltage is applied, and it is detected under galvanic separation whether the coil is saturated.
  • Yet another aspect of the invention relates to a control unit for an operating device for lighting, in particular integrated circuit such as an ASIC or microprocessor.
  • FIG. 1 schematically a first embodiment of the present invention is shown.
  • Fig. 1 shows an electronic ballast 1 with two inputs or mains voltage terminals 2, 3 for a mains voltage of usually 50Hz.
  • the two connection configurations for the mains voltage correspond to a respective lamp type whose external preselection is recognized by the ballast 1 according to the invention.
  • the individual lamp types may differ in particular by different operating parameters or by lamp-specific parameters, and, for example, lamp current, lamp voltage, filament voltage, filament current, ignition voltage, preheating time, etc.
  • the electronic ballast 1 is designed to match the operating parameters with the lamp type having a first power rating of 70W or a second power rating of 35W.
  • the primary winding W of a transformer T is connected in series with one of the two mains voltage terminals 2, 3 or Terminals connected.
  • the transformer T is a current transformer (CT) which is a special transformer for measuring large alternating currents.
  • the transformer T thus has a primary winding W, which measures the current through the branch of the corresponding mains voltage connection 2, 3. This current is inversely proportional to the ratio primary and secondary winding W, W 'reduced and measured in the circuit of the secondary winding W', wherein the transformer T provides for galvanic isolation.
  • a resistor R is provided in parallel to the secondary winding W 'of the transformer T.
  • the voltage of this resistor W ' is detected by a control unit 12 by two lines 13, 14.
  • this control unit 12 can close a mains supply of the ballast 1 via the terminal 3 and accordingly to a lamp power of 35W. Conversely, closed by the control unit 12 to a lamp power of 70W.
  • Ballast 1 the mains voltage connected to one of the two mains voltage terminals 2, 3 is fed to an electromagnetic filter 4 (in English EMI, for "electro-magnetic-interference").
  • This in Fig. 1 Ballast 1 shown further includes a bridge rectifier 5, which is the electromagnetic Filter rectifies filtered 4 mains voltage, and a DC voltage intermediate circuit 6 supplies.
  • the intermediate circuit 6 is followed by a half-bridge inverter 7, which contains two alternately clocked switch (not shown). These switches are turned on and off by the control unit 12.
  • the inverter 7 is followed by a resonant circuit 8, which is known to consist of a choke and a capacitor (not shown).
  • the inverter 7 acts as a driver circuit for the lamp and can alternatively be designed as a full-bridge inverter or other switching regulator.
  • the lamp 11 e.g. a gas discharge lamp such as in particular a low pressure or a high pressure discharge lamp (also called HID lamps, from the English term “high intensity discharge”) or one or more LEDs is connected in parallel to the capacitor of the resonant circuit 8 via outputs 9, 10 of the ballast 1.
  • the circuit parts 4 to 8 are common and known in ballasts.
  • FIG. 2 schematically another embodiment of the present invention is shown.
  • the electronic ballast 21 is in turn provided with two terminal configurations 2, 3 and a neutral conductor 22. Depending on whether the mains voltage is connected to the first or the second mains voltage connection 2, 3, the ballast 21 is set to the lamp power 70W or 35W.
  • a saturable transformer 23 is provided in series with the second power supply terminal 3, and the primary winding 24 of the transformer 23 is connected to the second power supply terminal 3.
  • the transformer 23 is optionally designed to saturate the primary winding 24.
  • the impedance of the primary winding changes.
  • the application of a mains voltage is carried out with potential separation, to which the person skilled in the fundamentally different possibilities (optocouplers, etc.) are known.
  • a test signal generator 26 is designed to be able to generate an active signal in the circle of the secondary winding 25 of the transformer 23.
  • a detection circuit 27 is provided for detecting whether a current at the mains voltage terminal 3 is present.
  • the test signal generator 26 and the detection circuit 27 are controlled by a controller 28.
  • the load 29 operated by the electronic ballast 21 may preferably be a gas discharge lamp 11, such as a low pressure or high pressure discharge lamp.
  • FIG Fig. 3 A particular form of this embodiment 21 is shown in FIG Fig. 3 shown.
  • the electronic ballast 31 has correspondingly two connection configurations 2, 3 and a transformer 23 with a primary winding, which is saturated when a power supply to the terminal 3 is connected.
  • the secondary winding 25 of the transformer 23 is connected in parallel with a diode D1, this parallel circuit in turn in series between a voltage Vo of, for example, 3.3V and the generator 26th
  • the generator 26 has a transistor 32 which is controlled on the base side by a voltage Vg and by a pulse generator 33, respectively.
  • a voltage Vg When the transistor 32 is conductive, there is a large current on the collector-emitter path. This current flows from the voltage point Vo via the secondary winding 25, the transistor 32 and a resistor R1 to the ground.
  • the voltage point Vg is connected to the transistor 32 through a resistor R2.
  • Two diodes D2, D3 are connected between the base of transistor 32 and ground.
  • the type of lamp can be recognized by the ballast 31, i. as can be distinguished between a connection of the mains voltage to the terminal 2 or to the terminal 3.
  • the transformer 23 and its primary winding 24 are saturated.
  • the voltage of the secondary winding 25 breaks down after reaching saturation to zero, so that at the voltage point Vc, the voltage Vo is measured.
  • the transformer can only saturate when the primary current is one exceeds certain height. This height, which may depend in particular on the core cross-section of the transformer 23, the core material or the number of turns, is chosen here such that when the mains voltage is applied, the transformer 23 actually saturates.
  • control unit 12 can close to the rated power of 70W to then operate the connected lamp 11 as a 70W lamp.
  • control unit can store this information in a memory 38.
  • Fig. 4 an alternative embodiment of the present invention is shown.
  • a ballast 41 according to this embodiment is different from that in FIG Fig. 3 shown form merely by generating 26 the active signal and by the current detection 47.
  • the parallel to the diode D1 connected secondary winding 25 of the transformer 23 is connected on the one hand with a reference voltage Vref of, for example 3.3V and on the other hand with a positive input Vc of a comparator 42.
  • This output voltage Vout is supplied to the control unit 12, which can thus close at a 35W rated power.
  • the control unit 12 has an output 48 for controlling a switch 45 arranged in series with a current source 43.
  • the series connection of switch 45 and current source 43 is connected between ground and the connection point between secondary winding 25, diode D1 and comparator 42.
  • Various circuits and preferably the diode D1, the switch 45, the current source 43, the comparator 42 and the control unit 12 can be in an ASIC 44 and in a Application-specific Integrated Circuit integrated.

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  • Circuit Arrangements For Discharge Lamps (AREA)

Description

Die vorliegende Erfindung bezieht sich auf Betriebsgeräte oder elektronische Vorschaltgeräte, die unterschiedliche Leuchtmittel wie beispielsweise Gasentladungslampen oder LEDs betreiben können. Die Erfindung betrifft insbesondere ein derartiges Betriebsgerät, bei dem der Benutzer eine Vorgabe bzgl. des Typs, insbesondere der Wattage (Leistungsklasse) des zu betreibenden Leuchtmittels ausführen kann, indem er einen von zwei Eingängen insbesondere durch Anschluss einer Netzspannung belegt. Das Betriebsgerät muss die Belegung insbesondere mit Netzspannung erkennen und wählt davon abhängig Betriebsparameter für ein angeschlossenes Leuchtmittel.The present invention relates to control gear or electronic ballasts that can operate different bulbs such as gas discharge lamps or LEDs. In particular, the invention relates to such an operating device, in which the user can perform a specification with respect to the type, in particular the wattage (power class) of the lamp to be operated by occupying one of two inputs, in particular by connecting a mains voltage. The operating device must recognize the assignment, in particular with mains voltage and selects depending on operating parameters for a connected light source.

Derartige Betriebsgeräte werden oft auch Multilampen-Geräte genannt.Such operating devices are often called multi-lamp devices.

Die Patentschrift US2002/0180378A1 offenbart ein Betriebsgerät, das neben dem Netzspannungsanschluss einen zusätzlichen Steueranschluss zur wahlweisen Belegung mit der Netzspannung aufweist. Durch eine galvanisch getrennte Erkennung einer anliegenden Netzspannung am Steueranschluss kann das Betriebsgerät Betriebsparamter für die Leuchtmittel wählen.The patent US2002 / 0180378A1 discloses an operating device which has, in addition to the mains voltage connection, an additional control connection for selectively occupying the mains voltage. By means of a galvanically isolated detection of an applied mains voltage at the control connection, the operating device can select operating parameters for the light sources.

Elektronischen Vorschaltgeräte für Gasentladungslampen können dabei eingangsseitig zum Anschluss einer Netzspannung auch wenigstens zwei unterschiedliche Klemmen aufweisen (je eine pro wählbaren Lampentyp), sodass der Benutzer über den Netzspannungsanschluss den zu betreibenden Lampentyp bzw. die zu betreibende Wattage vorgeben kann.Electronic ballasts for gas discharge lamps can also have at least two different terminals on the input side for connecting a mains voltage (one per selectable lamp type), so that the user can specify the lamp type to be operated or the wattage to be operated via the mains voltage connection.

Der Erfindung liegt die Aufgabe zugrunde, eine Technik zur Erkennung der Belegung eines Anschlusses eines Betriebsgeräts für Leuchtmittel bereitzustellen.The invention has for its object to provide a technique for detecting the occupation of a terminal of a control gear for lighting.

Die Aufgabe ist durch die kennzeichnenden Merkmale der Ansprüche gelöst, wobei sich die Kombination der Ansprüche als besonders vorteilhafte Lösung der Aufgabenstellung auszeichnet.The object is solved by the characterizing features of the claims, wherein the combination of the claims is characterized as a particularly advantageous solution to the problem.

Gemäß einem ersten Aspekt der vorliegenden Erfindung ist ein elektronisches Vorschaltgerät zum Betreiben eines Leuchtmittels, insbesondere einer Gasentladungslampe, vorgesehen. Das Vorschaltgerät weist mindestens zwei Spannungsanschlüsse zum Anschluss einer Netzspannung auf. Das Vorschaltgerät weist einen Transformator auf, dessen Primärwicklung mit einem der Spannungsanschlüsse verbunden ist. Eine Sättigung oder zumindest eine Impedanzänderung dieser Primärwicklung tritt entsprechend auf, wenn die Netzspannung an diesem Spannungsanschluss anliegt. Eine Sättigung oder Impedanzänderung dieser Primärwicklung tritt dagegen nicht auf, wenn an dem Spannungsanschluss keine Netzspannung anliegt. Das Vorschaltgerät weist eine Schaltung zur Erkennung der Sättigung oder auch einer Impedanzänderung dieser Primärwicklung auf. Gemäss dem allgemeinen Gedanken der Erfindung wird das Anliegen einer Netzspannung unter Potentialtrennung durchgeführt.According to a first aspect of the present invention, an electronic ballast for operating a light source, in particular a gas discharge lamp is provided. The ballast has at least two voltage connections for connecting a mains voltage. The ballast has a transformer whose primary winding is connected to one of the voltage terminals. A saturation or at least an impedance change of this primary winding occurs accordingly when the mains voltage is applied to this voltage terminal. In contrast, a saturation or impedance change of this primary winding does not occur if no mains voltage is present at the voltage connection. The ballast has a circuit for detecting the saturation or an impedance change of this primary winding. According to the general idea of the invention, the application of a mains voltage is carried out with potential separation.

Die Erkennung der Sättigung oder einer Impedanzänderung der Primärwicklung kann durch Auswertung der Impedanz der Sekundärwicklung des Transformators, insbesondere durch eine Steuereinheit, erfolgen.The detection of the saturation or an impedance change of the primary winding can be done by evaluating the impedance of the secondary winding of the transformer, in particular by a control unit.

Die Sekundärwicklung kann mit einer Referenzspannung versorgt werden. Eine Stromquelle kann in Serie mit der Sekundärwicklung selektiv eingeschaltet werden, und insbesondere selektiv ein- und ausgeschaltet werden. Eine Steuereinheit kann den Spannungs- bzw. Stromverlauf der Sekundärwicklung auswerten.The secondary winding can be supplied with a reference voltage. A power source can be used in series with the Secondary winding can be selectively turned on, and in particular selectively turned on and off. A control unit can evaluate the voltage or current profile of the secondary winding.

Die Auswertung der Impedanz der Sekundärwicklung kann mindestens während einer Halbwelle der Netzspannung oder während zwei oder mehr Halbwellen der Netzspannung durchgeführt werden.The evaluation of the impedance of the secondary winding can be carried out during at least one half-wave of the mains voltage or during two or more half-cycles of the mains voltage.

Bei Erkennung bzw. nicht Erkennung der Sättigung oder Impedanzänderung dieser Primärwicklung kann auf das Anschließen der Netzspannung an den ersten bzw. zweiten Spannungsanschluss geschlossen werden.Upon detection or not detection of the saturation or impedance change of this primary winding can be concluded that the connection of the mains voltage to the first and second voltage connection.

Das Anschließen der Netzspannung an den ersten bzw. zweiten Spannungsanschluss kann einen ersten bzw. zweiten logischen Zustand darstellen.The connection of the mains voltage to the first or second voltage connection can represent a first or second logic state.

Das Anschließen der Netzspannung an den ersten bzw. zweiten Spannungsanschluss kann auf einen ersten bzw. zweiten Lampentyp hindeuten.The connection of the mains voltage to the first and second voltage connection may indicate a first or second lamp type.

Das elektronische Vorschaltgerät kann eine Speichereinheit zur Speicherung des ermittelten logischen Zustands bzw. Lampentyps aufweisen.The electronic ballast may have a memory unit for storing the determined logic state or lamp type.

Gemäß einem weiteren Aspekt der vorliegenden Erfindung ist eine Schaltungsanordnung zur Erfassung des Anschließens einer Spannung an einen Spannungsanschluss vorgesehen. Die Schaltungsanordnung weist zwei Anschlüsse zum Anschließen eines Transformators auf. Die Primärwicklung des Transformators ist mit dem Spannungsanschluss verbunden. Eine Sättigung oder Impedanzänderung dieser Primärwicklung tritt nur dann auf, wenn die Spannung an dem Spannungsanschluss anliegt. Die Schaltungsanordnung weist Mittel zur Erkennung der Sättigung oder Impedanzänderung der Primärwicklung auf.According to another aspect of the present invention, a circuit arrangement for detecting the connection of a voltage to a voltage terminal is provided. The circuit arrangement has two connections for connecting a transformer. The primary winding of the transformer is connected to the power connection. A saturation or impedance change of this primary winding only occurs when the voltage is applied to the voltage connection. The circuit arrangement has means for detecting the saturation or impedance change of the primary winding.

Die Schaltungsanordnung kann vorzugsweise in Form eines ASICs (Anwendungsspezifische Integrierte Schaltung) ausgestaltet sein.The circuit arrangement can preferably be designed in the form of an ASIC (application-specific integrated circuit).

Ein erfindungsgemäßes Vorschaltgerät weist vorzugsweise eingangsseitig zum Anschluss der Netzspannung zwei unterschiedliche Klemmen auf, so dass der Benutzer über den Netzspannungsanschluss die zu betreibende Wattage vorgeben kann.An inventive ballast preferably has two different terminals on the input side for connecting the mains voltage, so that the user can specify the wattage to be operated via the mains voltage connection.

Gemäß der Erfindung wird ein Transformator vorgesehen, dessen Primärwicklung mit einem Netzspannungsanschluss verbunden ist. Wenn Netzspannung anliegt, ist der Transformator so ausgelegt, dass die Primärwicklung gesättigt wird.According to the invention, a transformer is provided, whose primary winding is connected to a mains voltage connection. When mains voltage is applied, the transformer is designed to saturate the primary winding.

Um zu entscheiden, ob an der Klemme, die mit dem Transformator verbunden ist, tatsächlich Netzspannung anliegt, wird die Impedanz der Sekundärwicklung des Transformators beurteilt. Dazu gibt es verschiedene Verfahren. Ausschlaggebend ist also die Auswertung eines Parameters, der von der Impedanz der Sekundärwicklung des Transformators abhängt. Die Auswertung kann in einen ASIC integriert werden.In order to decide whether mains voltage is present at the terminal which is connected to the transformer, the impedance of the secondary winding of the transformer is assessed. There are several methods for this. The decisive factor is the evaluation of a parameter that depends on the impedance of the secondary winding of the transformer. The evaluation can be integrated into an ASIC.

Die Sekundärwicklung wird mit einer Referenzspannung versorgt. Zur Auswertung wird selektiv über ein von dem ASIC vorgegebenes Signal ein Schalter geschlossen, um den sich dann ergebenden Spannungs- oder Stromverlauf auszuwerten. Nach der einmaligen Entscheidung, welche Klemme angeschlossen ist, wird der Schalter auf der Sekundärseite geöffnet. Die Entscheidung bzgl. der vom Benutzer über die Netzklemmen gewählten Wattage kann abgespeichert werden.The secondary winding is supplied with a reference voltage. For evaluation, a switch is selectively closed via a predetermined signal from the ASIC to the resulting voltage or current waveform evaluate. After a single decision as to which terminal is connected, the switch on the secondary side is opened. The decision regarding the wattage selected by the user via the power terminals can be saved.

Die Auswertung der Impedanz auch der Sekundärseite muss ausreichend lang sein, um zu gewährleisten, dass nicht gerade im Bereich des Nulldurchgangs der Netzspannung die Auswertung erfolgt. Vorzugsweise wird beispielsweise ein Zeitraum von mehreren Halbwellen ausgewertet.The evaluation of the impedance on the secondary side must be sufficiently long to ensure that the evaluation is not carried out in the area of the zero crossing of the mains voltage. Preferably, for example, a period of several half-waves is evaluated.

Vorteilhaft bei der vorliegenden Erfindung ist insbesondere die durch den Transformator gegebene galvanische Isolierung zwischen Netzspannung und Mittel zur Auswertung ob eine Netzspannung vorliegt.In the present invention, in particular, the galvanic isolation between the mains voltage and the means for evaluating whether there is a mains voltage is provided by the transformer.

Vorteilhaft ist es auch, dass die Mittel zur Auswertung ob eine Netzspannung vorliegt bzw. zur Erkennung des Lampentyps in einem ASIC angeordnet werden können. Dadurch können bereits vorhandene elementare Blöcke bzw. Einheiten eines ASICs, wie beispielsweise Komparator oder Stromquelle, benutzt werden.It is also advantageous that the means for evaluating whether there is a mains voltage or can be arranged in an ASIC for detecting the lamp type. As a result, existing elementary blocks or units of an ASIC, such as comparator or power source, can be used.

Vorteilhaft ist es weiterhin, dass abhängig vom eingesetzten Transformator sogar kleine Ströme durch die Primärwicklung erkannt werden können.It is also advantageous that even small currents can be detected by the primary winding depending on the transformer used.

Da der Transformator bei Sättigung betrieben wird, ist es auch vorteilhaft, dass die Verluste auf Seite der Primärwicklung gering bleiben.Since the transformer is operated at saturation, it is also advantageous that the losses on the side of the primary winding remain low.

Die Erfindung bezieht sich auch ein auf Verfahren zur Erkennung der Belegung eines Anschlusses eines Betriebsgeräts für Leuchtmittel mit Netzspannung,
wobei der Anschluss mit einer Spule verbunden ist, die bei Anliegen der Netzspannung gesättigt ist, und unter galvanischer Trennung erfasst wird, ob die Spule gesättigt ist.The invention also relates to a method for detecting the occupation of a connection of a control device for lighting devices with mains voltage,
wherein the terminal is connected to a coil which is saturated when the mains voltage is applied, and it is detected under galvanic separation whether the coil is saturated.

Ein weiterer Aspekt der Erfindung bezieht sich auf ein. Verfahren zur Vorgabe von Betriebsparametern für Leuchtmittel mittels Belegung eines von mehren möglichen Anschlüssen eines Betriebsgeräts für Leuchtmittel mit Netzspannung, wobei

  • der Anschluss mit einer Spule verbunden ist, die bei Anliegen der Netzspannung gesättigt ist,
  • unter galvanischer Trennung erfasst wird, ob die Spule gesättigt ist, und
  • abhängig von der Erfassung Betriebsparameter für ein angeschlossenes Leuchtmittel verwendet werden.
Another aspect of the invention relates to a. Method for specifying operating parameters for lighting means by occupying one of a plurality of possible terminals of a power supply for mains voltage lamps, wherein
  • the terminal is connected to a coil which is saturated when mains voltage is applied,
  • under galvanic isolation is detected, whether the coil is saturated, and
  • depending on the capture operating parameters used for a connected bulb.

Ein noch weiterer Aspekt der Erfindung bezieht sich auf eine Steuereinheit für ein Betriebsgerät für Leuchtmittel, insbesondere integrierte Schaltung wie bspw. ein ASIC oder Microprozessor.Yet another aspect of the invention relates to a control unit for an operating device for lighting, in particular integrated circuit such as an ASIC or microprocessor.

Weitere Merkmale, Vorteile und Eigenschaften werden nunmehr, bezugnehmend auf die Figuren der begleitenden Zeichnungen und anhand bevorzugter Ausführungsbeispiele näher beschrieben.Further features, advantages and properties will now be described in more detail, with reference to the figures of the accompanying drawings and with reference to preferred embodiments.

Dabei zeigt:

Fig. 1
schematisch ein Ausführungsbeispiel der vorliegenden Erfindung,
Fig. 2
ein weiteres Ausführungsbeispiel der vorliegenden Erfindung,
Fig. 3
eine Form des in Fig. 2 gezeigten Ausführungsbeispiels, und
Fig. 4
eine weitere Form des in Fig. 2 gezeigten Ausführungsbeispiels.
Showing:
Fig. 1
schematically an embodiment of the present invention,
Fig. 2
another embodiment of the present invention,
Fig. 3
a form of in Fig. 2 shown embodiment, and
Fig. 4
another form of in Fig. 2 shown embodiment.

In Fig. 1 ist schematisch ein erstes Ausführungsbeispiel der vorliegenden Erfindung dargestellt.In Fig. 1 schematically a first embodiment of the present invention is shown.

Fig. 1 zeigt ein elektronisches Vorschaltgerät 1 mit zwei Eingängen bzw. Netzspannungsanschlüssen 2, 3 für eine Netzspannung von üblicherweise 50Hz. Die zwei Anschlusskonfigurationen für die Netzspannung entsprechen einem jeweiligen Lampentyp, dessen externe Vorwahl vom Vorschaltgerät 1 erfindungsgemäß erkannt wird. Fig. 1 shows an electronic ballast 1 with two inputs or mains voltage terminals 2, 3 for a mains voltage of usually 50Hz. The two connection configurations for the mains voltage correspond to a respective lamp type whose external preselection is recognized by the ballast 1 according to the invention.

Die einzelnen Lampentypen können sich insbesondere durch unterschiedliche Betriebsparameter bzw. durch lampenspezifische Parameter unterscheiden, sowie zum Beispiel Lampenstrom, Lampenspannung, Wendelspannung, Wendelstrom, Zündspannung, Vorheizzeit, usw.The individual lamp types may differ in particular by different operating parameters or by lamp-specific parameters, and, for example, lamp current, lamp voltage, filament voltage, filament current, ignition voltage, preheating time, etc.

Im Ausführungsbeispiel der Fig. 1 ist das elektronische Vorschaltgerät 1 dazu ausgelegt, sich hinsichtlich der Betriebsparameter auf den Lampentyp mit einer ersten Leistung bzw. Nennleistung von 70W oder mit einer zweiten Leistung bzw. Nennleistung von 35W einzustellen.In the embodiment of Fig. 1 For example, the electronic ballast 1 is designed to match the operating parameters with the lamp type having a first power rating of 70W or a second power rating of 35W.

Die Primärwicklung W eines Transformators T ist in Serie mit einem der zwei Netzspannungsanschlüsse 2, 3 bzw. Klemmen angeschlossen. Bei dem Transformator T handelt es sich insbesondere um einen Stromwandler (im Englischen CT, für "current transformator"), der einen speziellen Transformator zum Messen großer Wechselströme darstellt.The primary winding W of a transformer T is connected in series with one of the two mains voltage terminals 2, 3 or Terminals connected. In particular, the transformer T is a current transformer (CT) which is a special transformer for measuring large alternating currents.

Der Transformator T hat also eine Primärwicklung W, die den Strom durch den Zweig des entsprechenden Netzspannungsanschlusses 2, 3 misst. Dieser Strom wird umgekehrt proportional zum Verhältnis Primär- und Sekundärwicklung W, W' verringert und im Kreis der Sekundärwicklung W' gemessen, wobei der Transformator T für eine galvanische Isolierung sorgt.The transformer T thus has a primary winding W, which measures the current through the branch of the corresponding mains voltage connection 2, 3. This current is inversely proportional to the ratio primary and secondary winding W, W 'reduced and measured in the circuit of the secondary winding W', wherein the transformer T provides for galvanic isolation.

Im Ausführungsbeispiel der Fig. 1 ist ein Widerstand R parallel zur Sekundärwicklung W' des Transformators T vorgesehen. Die Spannung dieses Widerstands W' wird von einer Steuereinheit 12 durch zwei Leitungen 13, 14 erfasst.In the embodiment of Fig. 1 a resistor R is provided in parallel to the secondary winding W 'of the transformer T. The voltage of this resistor W 'is detected by a control unit 12 by two lines 13, 14.

Erfasst diese Steuereinheit 12 über die Messung der Spannung des Widerstands W' nun einen Strom durch die Primärwicklung W, so kann diese Steuereinheit 12 auf eine Netz-Versorgung des Vorschaltgeräts 1 über den Anschluss 3 und dementsprechend auf eine Lampenleistung von 35W schließen. Umgekehrt wird von der Steuereinheit 12 auf eine Lampenleistung von 70W geschlossen.Detects this control unit 12 via the measurement of the voltage of the resistor W 'now a current through the primary winding W, then this control unit 12 can close a mains supply of the ballast 1 via the terminal 3 and accordingly to a lamp power of 35W. Conversely, closed by the control unit 12 to a lamp power of 70W.

Wie aus der Fig. 1 erkennbar wird die an einem der zwei Netzspannungsanschlüsse 2, 3 angeschlossene Netzspannung einem Elektromagnetischen Filter 4 (im Englischen EMI, für "electro-magnetic-interference") zugeführt. Das in Fig. 1 gezeigte Vorschaltgerät 1 enthält weiterhin einen Brückengleichrichter 5, der die vom Elektromagnetischen Filter 4 gefilterte Netzspannung gleichrichtet, und einem Gleichspannungszwischenkreis 6 zuführt.Like from the Fig. 1 it can be seen that the mains voltage connected to one of the two mains voltage terminals 2, 3 is fed to an electromagnetic filter 4 (in English EMI, for "electro-magnetic-interference"). This in Fig. 1 Ballast 1 shown further includes a bridge rectifier 5, which is the electromagnetic Filter rectifies filtered 4 mains voltage, and a DC voltage intermediate circuit 6 supplies.

Dem Zwischenkreis 6 ist ein HalbbrückenWechselrichter 7 nachgeschaltet, der zwei wechselweise getaktete Schalter (nicht gezeigt) enthält. Diese Schalter werden von der Steuereinheit 12 ein- und ausgeschaltet. An den Wechselrichter 7 schließt sich ein Resonanzkreis 8 an, der bekanntlich aus einer Drossel und einem Kondensator (nicht gezeigt) besteht. Der Wechselrichter 7 wirkt als Treiberschaltung für das Leuchtmittel und kann alternativ auch als Vollbrücken-Wechselrichter oder auch anderer Schaltregler ausgebildet sein.The intermediate circuit 6 is followed by a half-bridge inverter 7, which contains two alternately clocked switch (not shown). These switches are turned on and off by the control unit 12. The inverter 7 is followed by a resonant circuit 8, which is known to consist of a choke and a capacitor (not shown). The inverter 7 acts as a driver circuit for the lamp and can alternatively be designed as a full-bridge inverter or other switching regulator.

Die Lampe 11, z.B. eine Gasentladungslampe wie insbesondere eine Niederdruck oder eine Hochdruck-Entladungslampe (auch HID-Lampen genannt, vom englischen Begriff "high intensity discharge") oder eine oder mehrere LEDs, ist parallel zum Kondensator des Resonanzkreises 8 über Ausgänge 9, 10 des Vorschaltgeräts 1 geschaltet. Die Schaltungsteile 4 bis 8 sind in Vorschaltgeräten üblich und bekannt.The lamp 11, e.g. a gas discharge lamp such as in particular a low pressure or a high pressure discharge lamp (also called HID lamps, from the English term "high intensity discharge") or one or more LEDs is connected in parallel to the capacitor of the resonant circuit 8 via outputs 9, 10 of the ballast 1. The circuit parts 4 to 8 are common and known in ballasts.

In Fig. 2 ist schematisch ein weiteres Ausführungsbeispiel der vorliegenden Erfindung dargestellt.In Fig. 2 schematically another embodiment of the present invention is shown.

Das elektronische Vorschaltgerät 21 ist wiederum mit zwei Anschlusskonfigurationen 2, 3 sowie einem Nullleiter 22 versehen. Je nachdem, ob die Netzspannung am ersten oder am zweiten Netzspannungsanschluss 2, 3 angeschlossen ist, stellt sich das Vorschaltgerät 21 auf die Lampenleistung 70W bzw. 35W.The electronic ballast 21 is in turn provided with two terminal configurations 2, 3 and a neutral conductor 22. Depending on whether the mains voltage is connected to the first or the second mains voltage connection 2, 3, the ballast 21 is set to the lamp power 70W or 35W.

Ein sättigbarer Transformator 23 ist in Serie mit dem zweiten Netzspannungsanschluss 3 vorgesehen bzw. die Primärwicklung 24 des Transformators 23 ist mit dem zweiten Netzspannungsanschluss 3 verbunden. Wenn am Anschluss 3 eine Netzspannung anliegt, ist der Transformator 23 optional so ausgelegt, dass die Primärwicklung 24 gesättigt wird. Auf jeden Fall ändert sich beim Anschliessen der Netzspannung die Impedanz der Primärwicklung. Gemäss der Erfindung wird das Anliegen einer Netzspannung unter Potentialtrennung durchgeführt, wozu dem Fachmann grundsätzlich unterschiedliche Möglichkeiten (Optokoppler etc.) bekannt sind.A saturable transformer 23 is provided in series with the second power supply terminal 3, and the primary winding 24 of the transformer 23 is connected to the second power supply terminal 3. When a line voltage is applied to the terminal 3, the transformer 23 is optionally designed to saturate the primary winding 24. In any case, when connecting the mains voltage, the impedance of the primary winding changes. According to the invention, the application of a mains voltage is carried out with potential separation, to which the person skilled in the fundamentally different possibilities (optocouplers, etc.) are known.

Ein Testsignal-Generator 26 ist dazu ausgelegt, im Kreis der Sekundärwicklung 25 des Transformators 23 ein aktives Signal erzeugen zu können. Im Vorschaltgerät 21 ist auch eine Erkennungsschaltung 27 vorgesehen zum Erkennen, ob ein Strom am Netzspannungsanschluss 3 vorhanden ist. Der Testsignal-Generator 26 und die Erkennungsschaltung 27 werden von einem Kontroller 28 gesteuert.A test signal generator 26 is designed to be able to generate an active signal in the circle of the secondary winding 25 of the transformer 23. In the ballast 21, a detection circuit 27 is provided for detecting whether a current at the mains voltage terminal 3 is present. The test signal generator 26 and the detection circuit 27 are controlled by a controller 28.

Die vom elektronischen Vorschaltgerät 21 betriebene Last 29 kann vorzugsweise eine Gasentladungslampe 11 wie beispielsweise eine Niederdruck oder Hochdruck-Entladungslampe sein.The load 29 operated by the electronic ballast 21 may preferably be a gas discharge lamp 11, such as a low pressure or high pressure discharge lamp.

Eine besondere Form dieses Ausführungsbeispiel 21 wird in Fig. 3 gezeigt.A particular form of this embodiment 21 is shown in FIG Fig. 3 shown.

Das elektronische Vorschaltgerät 31 weist entsprechend zwei Anschlusskonfigurationen 2, 3 und einen Transformator 23 mit einer Primärwicklung, die bei Anschluss einer Netzvorsorgung an der Klemme 3 gesättigt wird.The electronic ballast 31 has correspondingly two connection configurations 2, 3 and a transformer 23 with a primary winding, which is saturated when a power supply to the terminal 3 is connected.

Die weiteren Schaltungen 4 bis 8 übereinstimmen mit denen der Fig. 1.The other circuits 4 to 8 coincide with those of Fig. 1 ,

Die Sekundärwicklung 25 des Transformators 23 ist mit einer Diode D1 parallel geschaltet, wobei diese Parallelschaltung wiederum in Serie zwischen einer Spannung Vo von beispielsweise 3,3V und dem Generator 26.The secondary winding 25 of the transformer 23 is connected in parallel with a diode D1, this parallel circuit in turn in series between a voltage Vo of, for example, 3.3V and the generator 26th

Der Generator 26 weist einen Transistor 32 auf, der auf der Basis-Seite von einer Spannung Vg bzw. von einem Impulsgenerator 33 gesteuert wird. Wenn der Transistor 32 leitend ist, ergibt sich einen großen Strom auf der Kollektor-Emitter-Strecke. Dieser Strom fließt vom Spannungspunkt Vo über die Sekundärwicklung 25, den Transistor 32 und einen Widerstand R1 bis zur Masse.The generator 26 has a transistor 32 which is controlled on the base side by a voltage Vg and by a pulse generator 33, respectively. When the transistor 32 is conductive, there is a large current on the collector-emitter path. This current flows from the voltage point Vo via the secondary winding 25, the transistor 32 and a resistor R1 to the ground.

Der Spannungspunkt Vg ist mit dem Transistor 32 über einen Widerstand R2 verbunden. Zwei Dioden D2, D3 sind zwischen der Basis des Transistors 32 und Masse angeschlossen.The voltage point Vg is connected to the transistor 32 through a resistor R2. Two diodes D2, D3 are connected between the base of transistor 32 and ground.

Im Folgenden wird erläutert, wie der Lampentyp vom Vorschaltgerät 31 erkannt werden kann, d.h. wie zwischen einem Anschluss der Netzspannung an die Klemme 2 oder an die Klemme 3 unterschieden werden kann.In the following it will be explained how the type of lamp can be recognized by the ballast 31, i. as can be distinguished between a connection of the mains voltage to the terminal 2 or to the terminal 3.

Falls das elektronische Vorschaltgerät 31 über den Netzspannungsanschluss 3 gespeist wird, werden der Transformator 23 und seine Primärwicklung 24 gesättigt. Infolgedessen bricht die Spannung der Sekundärwicklung 25 nach dem Erreichen der Sättigung auf Null zusammen, so dass am Spannungspunkt Vc die Spannung Vo gemessen wird.If the electronic ballast 31 is fed via the mains voltage terminal 3, the transformer 23 and its primary winding 24 are saturated. As a result, the voltage of the secondary winding 25 breaks down after reaching saturation to zero, so that at the voltage point Vc, the voltage Vo is measured.

Zu bemerken ist dabei, dass der Transformator nur in die Sättigung geraten kann, wenn der Primärstrom eine bestimmte Höhe überschreitet. Diese Höhe, die insbesondere vom Kernquerschnitt des Transformators 23, vom Kernmaterial oder von der Windungszahl abhängig sein kann, ist hier derart gewählt, dass bei Anliegen der Netzspannung der Transformator 23 tatsächlich in die Sättigung gerät.It should be noted that the transformer can only saturate when the primary current is one exceeds certain height. This height, which may depend in particular on the core cross-section of the transformer 23, the core material or the number of turns, is chosen here such that when the mains voltage is applied, the transformer 23 actually saturates.

Wenn hingegen am Netzspannungsanschluss 3 keine Netzspannung anliegt, d.h. wenn das Vorschaltgerät 31 über den anderen Netzspannungsanschluss 2 versorgt wird, gibt es primärseitig 24 keinen Strom. Eine sekundärseitig 25 induzierte Spannung kann sich dementsprechend entwickeln. Das Schließen des Transistors bzw. des Schalters 32 verursacht dann einen sekundärseitigen 25 Spannungsabfall, der am Spannungspunkt Vc gemessen werden kann.If, on the other hand, no mains voltage is present at the mains voltage connection 3, i. if the ballast 31 is supplied via the other mains voltage connection 2, there is no current on the primary side 24. A voltage induced on the secondary side can develop accordingly. The closing of the transistor or the switch 32 then causes a secondary side 25 voltage drop, which can be measured at the voltage point Vc.

Misst die Steuereinheit 12 eine Spannung Vc=Vo unter Berücksichtigung einer gewissen Toleranz, kann auf eine Lampenleistung von 35W geschlossen werden und die Lampe 11 kann mit entsprechenden Parametern betrieben werden.If the control unit 12 measures a voltage Vc = Vo taking into account a certain tolerance, it is possible to deduce a lamp power of 35 W and the lamp 11 can be operated with corresponding parameters.

Dagegen wenn eine Spannung Vc<Vo gemessen wird, kann die Steuereinheit 12 auf die Nennleistung von 70W schließen, um dann die angeschlossene Lampe 11 auch als 70W Lampe zu betreiben.On the other hand, when a voltage Vc <Vo is measured, the control unit 12 can close to the rated power of 70W to then operate the connected lamp 11 as a 70W lamp.

Sobald der Lampentyp erkannt wird, kann die Steuereinheit diese Information in einem Speicher 38 abspeichern.Once the lamp type is detected, the control unit can store this information in a memory 38.

In Fig. 4 ist eine alternative Ausführungsform der vorliegenden Erfindung gezeigt.In Fig. 4 an alternative embodiment of the present invention is shown.

Ein Vorschaltgerät 41 gemäß dieser Ausführungsform unterscheidet sich von der in Fig. 3 gezeigten Form lediglich durch das Erzeugen 26 des aktiven Signals und durch die Stromerfassung 47.A ballast 41 according to this embodiment is different from that in FIG Fig. 3 shown form merely by generating 26 the active signal and by the current detection 47.

Die parallel zur Diode D1 geschaltete Sekundärwicklung 25 des Transformators 23 ist einerseits mit einer Referenzspannung Vref von beispielsweise 3,3V und andererseits mit einem positiven Eingang Vc eines Komparators 42 verbunden. Ein zweiter negativer Eingang des Komparators 42 wird auf Vref/2 gesetzt, so dass bei Anschluss einer Netzspannung an der Klemme 3 der Komparator 42 eine positive Ausgangsspannung Vout=Vc-Vref/2=Vref-Vref/2=Vref/2 erzeugt. Diese Ausgangsspannung Vout wird der Steuereinheit 12 zugeführt, die somit auf eine 35W Nennleistung schließen kann.The parallel to the diode D1 connected secondary winding 25 of the transformer 23 is connected on the one hand with a reference voltage Vref of, for example 3.3V and on the other hand with a positive input Vc of a comparator 42. A second negative input of the comparator 42 is set to Vref / 2, so that when a mains voltage is connected to the terminal 3, the comparator 42 generates a positive output voltage Vout = Vc-Vref / 2 = Vref-Vref / 2 = Vref / 2. This output voltage Vout is supplied to the control unit 12, which can thus close at a 35W rated power.

Die Steuereinheit 12 weist einen Ausgang 48 zur Steuerung eines in Serie mit einer Stromquelle 43 angeordneten Schalters 45. Die Serienschaltung von Schalter 45 und Stromquelle 43 ist zwischen Masse und dem Verbindungspunkt zwischen Sekundärwicklung 25, Diode D1 und Komparator 42 verbunden.The control unit 12 has an output 48 for controlling a switch 45 arranged in series with a current source 43. The series connection of switch 45 and current source 43 is connected between ground and the connection point between secondary winding 25, diode D1 and comparator 42.

Wird mit einem nicht gesättigten Transformator 23 der Schalter 45 von der Steuereinheit 12 eingeschaltet, so fließt wegen der Stromquelle 43 ein Strom durch die Sekundärwicklung 25, wodurch der Komparator-Eingang Vc unter dem Wert Vref/2 absinkt. Die sich ergebende negative Komparator-Ausgangsspannung Vout wird von der Steuereinheit erfasst. Somit kann wiederum auf das Vorhandensein einer 70W Lampe geschlossen werden.If the switch 45 is turned on by the control unit 12 with a non-saturated transformer 23, a current flows through the secondary winding 25 because of the current source 43, as a result of which the comparator input Vc drops below the value Vref / 2. The resulting negative comparator output voltage Vout is detected by the control unit. Thus, in turn, the presence of a 70W lamp can be concluded.

Verschiedene Schaltungen und vorzugsweise die Diode D1, der Schalter 45, die Stromquelle 43, der Komparator 42 und die Steuereinheit 12 können in einen ASIC 44 bzw. in eine Anwendungsspezifische Integrierte Schaltung integriert werden.Various circuits and preferably the diode D1, the switch 45, the current source 43, the comparator 42 and the control unit 12 can be in an ASIC 44 and in a Application-specific Integrated Circuit integrated.

Claims (5)

  1. Operating device (41) for operating light-emitting means (11), in particular a gas discharge lamp, said operating device having:
    - two voltage connections (2, 3) for connecting a mains voltage feeding the operating device and a PEN conductor connection (22),
    characterized in that the operating device further has
    - a circuit, which is designed to identify, in galvanically isolated fashion, the connection of a mains voltage to one of the two, preferably external, voltage connections in order to select operating parameters for the operation of the light-emitting means (11) depending on to which of the two voltage connections the mains voltage is connected.
  2. Operating device (41) according to Claim 1, wherein the connection of the mains voltage to the first voltage connection (3) and second voltage connection (2) represents a first and second logic state, respectively.
  3. Operating device (41) according to Claim 1 or 2, wherein the connection of the mains voltage to the first voltage connection (3) and second voltage connection (2) indicates a first and second lamp type, respectively.
  4. Operating device (41) according to Claim 2, having a memory unit (38) for storing the determined logic state or lamp type.
  5. Method for presetting operating parameters for light-emitting means by means of assigning one of two voltage connections of an operating device for light-emitting means to a mains voltage feeding the operating device, characterized in that
    - a presence of the mains voltage at one of the two voltage connections is identified with galvanic isolation, and
    - depending on to which of two voltage connections it is ascertained that the mains voltage is connected, operating parameters for a connected light-emitting means are used.
EP09726705.8A 2008-03-31 2009-03-25 Recognition of the configuration of a connection of an illumination means operating device Active EP2263421B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810016752 DE102008016752A1 (en) 2008-03-31 2008-03-31 Detection of the occupation of a connection of a control gear for lamps
PCT/EP2009/002187 WO2009121508A1 (en) 2008-03-31 2009-03-25 Detection of the assignment of a terminal of an operating device for illumination means

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DE102012008502A1 (en) * 2012-04-26 2013-10-31 Tridonic Gmbh & Co. Kg Operating device for a light bulb and method
CN108233738B (en) 2016-12-22 2020-11-17 赤多尼科两合股份有限公司 Voltage conversion device

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DE1916398U (en) * 1963-02-27 1965-05-26 Siemens Ag INVERTER EQUIPPED WITH A SWITCHING DEVICE FOR OPERATING FLUORESCENT LAMPS FROM AN AC MAINS OR FROM A DC SOURCE.
FR2070638A5 (en) * 1969-12-11 1971-09-10 Compteurs Comp D
US4314200A (en) * 1977-09-01 1982-02-02 Bbc Brown, Boveri & Company Limited Method and apparatus for detection of magnetization
JP2557527B2 (en) * 1989-07-31 1996-11-27 株式会社東芝 Light core break detector
SE468189B (en) * 1991-03-27 1992-11-16 Asea Brown Boveri METHOD FOR DETECTING Saturation with AC Transformers AND DETECTOR FOR IMPLEMENTATION OF THESE METHOD
DE19711183A1 (en) * 1997-03-18 1998-09-24 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Method and circuit arrangement for operating at least one discharge lamp
US6072284A (en) * 1998-07-20 2000-06-06 Duro-Test Corporation Three-way compact fluorescent lamp ballast and lamp holder incorporating same
DE19923945A1 (en) * 1999-05-25 2000-12-28 Tridonic Bauelemente Electronic ballast for at least one low-pressure discharge lamp
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CN101982017A (en) 2011-02-23
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CN101982017B (en) 2015-03-18
WO2009121508A1 (en) 2009-10-08

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