EP1555858B1 - Central power supply for lamp operation devices containing a central PFC/rectification device - Google Patents

Central power supply for lamp operation devices containing a central PFC/rectification device Download PDF

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Publication number
EP1555858B1
EP1555858B1 EP04028277A EP04028277A EP1555858B1 EP 1555858 B1 EP1555858 B1 EP 1555858B1 EP 04028277 A EP04028277 A EP 04028277A EP 04028277 A EP04028277 A EP 04028277A EP 1555858 B1 EP1555858 B1 EP 1555858B1
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EP
European Patent Office
Prior art keywords
output circuit
voltage
central
rectifier unit
central rectifier
Prior art date
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Application number
EP04028277A
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German (de)
French (fr)
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EP1555858A2 (en
EP1555858A3 (en
Inventor
Alexander Barth
Günter MARENT
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Tridonic GmbH and Co KG
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Tridonic GmbH and Co KG
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Priority to PL04028277T priority Critical patent/PL1555858T3/en
Priority to EP11162425.0A priority patent/EP2365737B1/en
Publication of EP1555858A2 publication Critical patent/EP1555858A2/en
Publication of EP1555858A3 publication Critical patent/EP1555858A3/en
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Publication of EP1555858B1 publication Critical patent/EP1555858B1/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
    • H05B41/282—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
    • H05B41/285—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2851—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
    • H05B41/24—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency
    • H05B41/245—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency for a plurality of lamps
    • 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

Definitions

  • the present invention relates to the control of lamp operating devices from a central unit.
  • the light source is a gas discharge lamp 5, which is controlled by an electric ballast (ECG) 1 as a control gear.
  • ECG electric ballast
  • this electronic ballast 1 has a rectifier with power factor correction circuit (PFC, Power Factor Correction) 2, an electrolyte storage capacitor 4 and an RF inverter 3, which in turn via its output circuit 6, the gas discharge lamp 5 drives.
  • the DC voltage (bus voltage) is therefore only present within the ECG.
  • an emergency lighting control 7 may be provided.
  • the rectifier 2 in the electronic ballast 1 is usually supplied with alternating voltage 9, for example mains voltage.
  • each lamp operating device ECG 1
  • PFC circuit is known to reduce spurious harmonics in the input current.
  • these locally provided in each ECG 1 inverter with PFC 2 represents a significant cost factor, which severely limits the trend towards extremely low-cost electronic ballasts.
  • an illumination system includes an AC / DC power converter that is integrated with an AC lighting circuit and transmits a DC current through power distribution lines to various illumination positions.
  • DC-powered resonant inverter operating circuits are provided and connected to the DC power where light is needed.
  • the AC / DC power converter does not have a low voltage output.
  • ballast which has a rectifier for supplied AC voltages, wherein the DC bus voltage generated thereby is converted by an inverter into an AC voltage for supplying a light source.
  • the publication EP 1 244 337 A1 describes a lighting system having a plurality of light emitting sockets, which are connected by an electrical line. Each of the sockets has a light source associated with a power supply unit. Via the electrical line, the power supply units are also connected to a power supply module and to other electrical components of a power supply circuit that is common to all lighting sockets.
  • a ballast for operating electric lamps with an inverter, a DC supply circuit for the inverter, a load circuit connected to the inverter for supplying power to one or more electric lamps, a microcontroller for monitoring and controlling the operation of the ballast and a voltage supply device for the microcontroller.
  • the voltage supply device is designed as a DC-DC converter. This ensures a voltage supply of the microcontroller even in stand-by operation of the ballast with disabled inverter.
  • a switch regulator for use in a switchable current source which detects fault operation by observing warranted feedback signals during a period of time. If a feedback signal is asserted for a period of time, the switchable current source operates in normal operation. If a feedback signal is not asserted for a period of time, the switchable current source will go into fault mode. If an error is detected, a gate drive signal is asserted by the switching regulator for a period of time before a restart is attempted.
  • an electronic ballast for gas discharge lamps which has an input circuit part for generating a DC link voltage from a supply voltage with an supplied from the DC link voltage oscillator circuit part for generating an alternating signal which can be supplied to the gas discharge lamps. Furthermore, the ballast has a bistable switch-off holding circuit part, which in its first or second stable state supplies the oscillator circuit part with a switch-off signal and thereby releases or switches off the oscillator circuit part.
  • a first signal derived from the alternating signal controls the cut-off holding circuit part from its first to its second stable state when it exceeds a predetermined value and generates the switch-off signal.
  • Another signal derived from the DC link voltage generates the switch-off signal when the DC link voltage exceeds a predetermined maximum value.
  • the starting point and object of the present invention is to propose a drive for light source operating devices, which enables a more cost-effective production of operating devices.
  • the central point of the invention is that the unit rectifier / PFC is no longer provided locally in each operating device, but centrally for several operating devices.
  • the connection between this center and the individual operating devices is carried out according to the invention via a DC output circuit.
  • a system for the central power supply of operating devices (operating means) for lighting means has a central rectifier unit with an input side terminal for AC voltage and multiple DC output circuits, including a low-voltage output circuit. Furthermore, several operating devices are provided for lamps, which are supplied via the DC output circuits with voltage.
  • the central rectifier unit has a circuit for regulating the voltage, the current and / or the power of the DC output circuits.
  • the central rectifier unit for example, have a circuit for limiting the current of the DC output circuit.
  • the central rectifier unit can be designed to switch off the DC output circuit as soon as the (monitored) voltage of the DC output circuit falls below a predetermined value.
  • the central rectifier unit may have a monitoring unit for the state of the DC output circuit.
  • the monitoring unit can evaluate previously defined changes in the state of the DC output circuit as failures of the connected operating devices for lighting devices and / or as defined feedback signals of a control gear.
  • the central rectifier unit can have a signal interface via which information about future load changes, in particular load jumps in the DC output circuit, can be fed to it in advance.
  • parameters of the central rectifier unit may be adjusted.
  • the central rectifier unit can be constructed, for example, in the form of modules connected in parallel, with modules being switched on or off depending on the information regarding future load changes.
  • the central rectifier unit may transition the DC output circuit to a standby state in which the bus voltage is reduced.
  • the reduced bus voltage can advantageously be chosen such that it is sufficient to supply logic components, such as Asics, in a control gear for lighting.
  • the central rectifier unit may further comprise a power factor correction unit.
  • a method for the central power supply of operating devices for lighting means is provided.
  • a central rectifier unit regulates the voltage, the current and / or the power in a DC output circuit.
  • the central rectifier unit is supplied at an input side terminal AC voltage, which is rectified provided on a plurality of DC output circuits, including a low-voltage supply circuit.
  • Several operating devices for light sources are supplied with voltage via the DC output circuits.
  • a method for central power supply of operating devices for lighting means wherein a central rectifier unit be supplied in advance information about future load changes, in particular load jumps in the DC output circuit, so that the central rectifier unit in advance can adjust to such expected load changes.
  • a central unit comprising, for example, a rectifier 2 and optionally also a power factor correction circuit (PFC) 10, is jointly provided for a plurality of lamp operating devices 1, 1 ', 1 "
  • the central unit 2, 10 can also be spatially separated from the operating devices and, for example, be arranged centrally for a room, a floor or even a building in a control cabinet, etc.
  • the various light-emitting devices operating devices 1, 1 ', 1 a variety of light sources, such as a gas discharge lamp 5, light emitting diodes 5', etc. Actuate the bulbs themselves can be operated with DC or AC voltage, wherein in the latter case, an inverter is provided in the associated operating device.
  • a light sensor 5 or a motion detector (not shown) may be connected to a DC output circuit 11 of the central unit.
  • the operating devices 1, 1', 1" are designed differently.
  • the corresponding operating device 3 For example, designed as an electronic ballast (ECG), inter alia, with an inverter.
  • ECG electronic ballast
  • the operating devices can also be referred to as "output converters”.
  • Fig. 1 shown schematically may be designed bus-like an output circuit 11, so that starting from this central common bus 11, the various operating devices 1, 1 ', 1 "are supplied via stubs 13, 13', 13".
  • individual output circuits 12 may be provided for individual operating devices or jointly supplied groups of operating devices.
  • This DC output circuit has the advantage of being less susceptible to parasitic effects than corresponding AC circuits.
  • the central unit is provided for a plurality of operating devices in common, wherein the central unit is connected to the operating devices by means of at least one DC output circuit.
  • At least one PFC 10 can supply an example, by means of a transformer or the like. Potential-separated output circuit.
  • FIG. 3 a central control unit 31 is shown, which has a plurality of rectifier / PFC modules 36, which are arranged parallel to each other. Furthermore, a monitoring / control unit 393 is provided in the central rectifier unit 31.
  • the central rectifier unit 31 is supplied with an AC voltage 35, in particular a mains voltage.
  • the rectifier unit 31 has in the embodiment of Fig. 3 a plurality of DC output circuits, namely a high-voltage output circuit 39, a low-voltage output circuit 392 and a non-voltage-carrying terminal 34 which is connected to ground. Via the mentioned DC output circuits 39, 392 and 34, connected operating devices 32 for lighting means 33 can be supplied.
  • ECGs electronic ballasts
  • inverters DC / AC provided with which gas discharge lamps 33 can be controlled in a conventional manner.
  • the low-voltage supply of logic components in the operating devices 32 such as provided by Asics.
  • the low-voltage output circuit 302 can also be used for signal transmission (for example in the form of a digital bus) from the central unit 31 to the connected operating devices 32 and possibly vice versa (bidirectional bus).
  • the central rectifier unit 31 at least with respect to the DC output circuit 39, so a purely power-supplying DC output circuit without control function, the voltage U, the current I and / or the power P monitored by the monitoring / control circuit 393.
  • the monitoring / control circuit 31 may have the function of a current limiting of the DC output circuit 39. It should be noted that in certain cases, the low-voltage output circuit 392 can serve for power supply. This is for example advantageously the case with the driving of LEDs. In this case, the voltage monitoring / control function, current and / or power can also be applied to these output circuits.
  • the monitoring / control unit 393 may have a function that the DC output circuit is turned off if the voltage of the corresponding DC output circuit is below a predetermined value.
  • a state change may indicate an error state of at least one connected operating device 32.
  • state changes of the DC output circuit 39 or 392 defined in advance with the operating devices 32 can also be arranged in the sense of a signal feedback from an operating device 32 to the central unit 31.
  • the change in state of an output circuit then represents a return channel of a signal bus.
  • Such a change in state of the DC output circuit can be triggered selectively, for example, by a switchable load circuit in at least one of the resources.
  • the central unit 31 can for example also put a DC output circuit (for example 39) in a standby state, in which the bus voltage is significantly lowered.
  • a DC output circuit for example 39
  • the lowered bus voltage can be chosen such that they are still sufficient to supply power to logic components (for example Asics) in a connected operating device.
  • a connected operating device 32 can be placed in a standby state in which the control logic is still actively supplied with power, the current bus voltage but not to control, for example, a connected gas discharge lamp 33 would be sufficient.
  • the lowering of the bus voltage has the advantage that, in the event that, starting from a high bus voltage of, for example, 400 volts at the DC output circuit 39, a low-voltage supply voltage of, for example, 12 volts for logic components is obtained, which in the generation of low-voltage Voltage supply occurring (resistive) losses are significantly reduced.
  • FIG. 4 Now, a particularly advantageous procedure will be explained, as it can be achieved with the present invention.
  • the central unit 41 is shown with only one rectifier / power factor correction module 46, it should be understood that here too the parallel modular structure is as shown in FIG Fig. 3 known, can be used.
  • the current, voltage and / or power of the DC output circuit 44 for connected equipment 42 for connected lamps 43 is monitored and regulated. According to the invention thereby sudden load changes, in particular load jumps in the DC output circuit 44, that is, the corresponding change in state of the operating means 42 with connected bulbs 43, only executed if in advance an information (S1 in Fig. 4 ) was transmitted to the central unit 41.
  • parameters of the central processing unit 41 can be adjusted so that it adjusts to the expected future load in the DC output circuit 44.
  • This setting can be used in the transmission of the embodiment of Fig. 3 according to the procedure Fig. 4 consist in that parallel-connected modules in the central unit 41 on or off.
  • the values for the regulated parameter power, current or voltage can be set in advance in anticipation of a power jump in the DC output circuit.
  • control signals for changing the state of a luminous means 43 are transmitted from a digital or analog bus 491 or from a pushbutton or switch command 492 to a powerline modulation unit 48.
  • This modulation unit 48 thus modulates control signals to the DC output circuit 44.
  • the powerline control command transmission of course, the connected equipment 42 has a powerline demodulator 493 to read over the bus 44 transmitted commands can.
  • a user gives a power change for a lighting means 43 by means of the switch or push button 492 and / or via the digital or
  • the powerline modulator 48 generates a preliminary message to the central unit 41, which thus detects it by reading the powerline message from the DC output circuit 44. Subsequently, the parameter adaptation takes place in the central unit 41. Finally, the central unit 41 confirms to the powerline modulator 48 that the adaptation has been carried out. Only then does the powerline modulator 48 transmit the actual control command in a step S3 via the DC bus 44 or a separate control line to the operating means 42 to be controlled.

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Dc-Dc Converters (AREA)
  • Rectifiers (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

The system has a central rectifier unit (31) with an input side connection for alternating voltage (35) and at least one d.c. output stage (39, 392) and several operating devices (32) for light sources supplied with voltage via the d.c. output stages, whereby the central rectifier unit has a circuit (392, 36) for regulating the voltage, the current and/or the power of the output stage : Independent claims are also included for the following: (A) a method for the central voltage supply of operating devices for light sources (B) and a computer software product for supporting the inventive method.

Description

Die vorliegende Erfindung bezieht sich auf die Steuerung von Leuchtmittel-Betriebsgeräten ausgehend von einer zentralen Einheit.The present invention relates to the control of lamp operating devices from a central unit.

Dabei geht die Erfindung von einem in Fig. 2 schematisch dargestellten System aus. In diesem Beispiel ist das Leuchtmittel eine Gasentladungslampe 5, die von einem elektrischen Vorschaltgerät (EVG) 1 als Betriebsgerät angesteuert wird. In üblicher Weise weist dieses EVG 1 einen Gleichrichter mit Leistungsfaktor-Korrekturschaltung (PFC, Power Factor Correction) 2, einen Elektrolyt-Speicherkondensator 4 sowie einen HF-Wechselrichter 3 auf, der wiederum mittels über seinen Ausgangskreis 6 die Gasentladungslampe 5 ansteuert. Die Gleichspannung (Busspannung) liegt somit nur innerhalb des EVGs vor.The invention of a in Fig. 2 schematically illustrated system. In this example, the light source is a gas discharge lamp 5, which is controlled by an electric ballast (ECG) 1 as a control gear. In the usual way, this electronic ballast 1 has a rectifier with power factor correction circuit (PFC, Power Factor Correction) 2, an electrolyte storage capacitor 4 and an RF inverter 3, which in turn via its output circuit 6, the gas discharge lamp 5 drives. The DC voltage (bus voltage) is therefore only present within the ECG.

Zusätzlich kann eine Notbeleuchtungssteuerung 7 vorgesehen sein.In addition, an emergency lighting control 7 may be provided.

Der Gleichrichter 2 in dem EVG 1 wird üblicherweise mit Wechselspannung 9, beispielsweise Netzspannung, versorgt.The rectifier 2 in the electronic ballast 1 is usually supplied with alternating voltage 9, for example mains voltage.

Gleichzeitig ist es bekannt, das EVG 1 über eine Digital- oder Analogbussteuerung 8 anzusteuern, um somit die Lampe 5 zu starten, zu dimmen oder auszuschalten. Festzuhalten ist, dass bei diesem Stand der Technik in jedem Lampenbetriebsgerät (EVG 1) ein eigener Gleichrichter 2 mit PFC-Schaltung vorgesehen ist. Eine derartige PFC-Schaltung verringert bekanntlich störende Oberwellen im Eingangsstrom. Andererseits stellen diese lokal in jedem EVG 1 vorgesehenen Wechselrichter mit PFC 2 einen beträchtlichen Kostenfaktor dar, der den Trend zu äußerst kostengünstig gefertigten EVG's stark eingrenzt.At the same time, it is known to control the electronic ballast 1 via a digital or analog bus control 8, in order thus to start, dim or switch off the lamp 5. It should be noted that in this prior art in each lamp operating device (ECG 1) a separate rectifier 2 is provided with PFC circuit. Such a PFC circuit is known to reduce spurious harmonics in the input current. On the other hand, these locally provided in each ECG 1 inverter with PFC 2 represents a significant cost factor, which severely limits the trend towards extremely low-cost electronic ballasts.

Aus der Druckschrift WO 94/27419 ist ein Beleuchtungssystem bekannt, das einen AC/DC-Leistungswandler aufweist, der in eine AC-Beleuchtungsschaltung eingebunden ist und einen DC-Strom durch Stromverteilungsleitungen zu verschiedenen Beleuchtungspositionen überträgt. Mit DC-Strom betriebene Resonanzinverterbetriebschaltungen werden bereit gestellt und sind mit dem DC-Strom dort verbunden wo Licht benötigt wird. Der AC/DC-Leistungswandler hat keinen Niederspannungsausgang.From the publication WO 94/27419 For example, an illumination system is known that includes an AC / DC power converter that is integrated with an AC lighting circuit and transmits a DC current through power distribution lines to various illumination positions. DC-powered resonant inverter operating circuits are provided and connected to the DC power where light is needed. The AC / DC power converter does not have a low voltage output.

Aus der Druckschrift US 6,534,933 B2 ist ein Vorschaltgerät bekannt, das einen Gleichrichter für zugeführte AC-Spannungen aufweist, wobei die dadurch erzeugte DC-Busspannung durch einen Wechselrichter in eine Wechselspannung zur Versorgung eines Leuchtmittels umgesetzt wird.From the publication US 6,534,933 B2 a ballast is known which has a rectifier for supplied AC voltages, wherein the DC bus voltage generated thereby is converted by an inverter into an AC voltage for supplying a light source.

Die Druckschrift EP 1 244 337 A1 beschreibt ein Beleuchtungssystem mit einer Vielzahl Leuchtmittelfassungen, die durch eine elektrische Leitung verbunden sind. Jede der Fassungen weist ein Leuchtmittel auf, das mit einer Stromversorgungseinheit assoziiert ist. Über die elektrische Leitung sind die Stromversorgungseinheiten ebenfalls mit einem Stromversorgungsmodul und mit anderen elektrischen Komponenten einer Stromversorgungsschaltung verbunden, die allen Beleuchtungsfassungen gemein ist.The publication EP 1 244 337 A1 describes a lighting system having a plurality of light emitting sockets, which are connected by an electrical line. Each of the sockets has a light source associated with a power supply unit. Via the electrical line, the power supply units are also connected to a power supply module and to other electrical components of a power supply circuit that is common to all lighting sockets.

Aus der Druckschrift EP 1231821 A1 ist ein Vorschaltgerät zum Betrieb von elektrischen Lampen mit einem Wechselrichter, einer Gleichspannungsversorgungsschaltung für den Wechselrichter, einem an den Wechselrichter angeschlossenen Lastkreis zur Spannungsversorgung einer oder mehrerer elektrischer Lampen, einem Mikrocontroller zur Überwachung und Steuerung des Betriebs des Vorschaltgeräts und einer Spannungsversorgungseinrichtung für den Mikrocontroller bekannt. Die Spannungsversorgungseinrichtung ist als Gleichspannungswandler ausgebildet. Dieser gewährleistet eine Spannungsversorgung des Mikrocontrollers auch im Stand-by-Betrieb des Vorschaltgerätes bei deaktiviertem Wechselrichter.From the publication EP 1231821 A1 a ballast is known for operating electric lamps with an inverter, a DC supply circuit for the inverter, a load circuit connected to the inverter for supplying power to one or more electric lamps, a microcontroller for monitoring and controlling the operation of the ballast and a voltage supply device for the microcontroller. The voltage supply device is designed as a DC-DC converter. This ensures a voltage supply of the microcontroller even in stand-by operation of the ballast with disabled inverter.

Aus der Druckschrift WO 00/72435 A1 ist ein Schaltregulator zur Verwendung in einer schaltbaren Stromquelle bekannt, der eine Fehlerbedienung durch Beobachten von zugesicherten Rückkopplungssignalen während einer Zeitspanne erkennt. Wenn ein Rückkopplungssignal für eine Zeitspanne zugesichert ist, arbeitet die schaltbare Stromquelle im Normalbetrieb. Wenn ein Rückkopplungssignal für eine Zeitspanne nicht zugesichert ist, wechselt die schaltbare Stromquelle in einen Fehlerbetrieb. Wenn ein Fehler erkannt wird, wird ein Gate-Treibersignal von dem Schaltregulator für eine Zeitspanne ausgesetzt, bevor ein Neustart versucht wird.From the publication WO 00/72435 A1 For example, a switch regulator for use in a switchable current source is known which detects fault operation by observing warranted feedback signals during a period of time. If a feedback signal is asserted for a period of time, the switchable current source operates in normal operation. If a feedback signal is not asserted for a period of time, the switchable current source will go into fault mode. If an error is detected, a gate drive signal is asserted by the switching regulator for a period of time before a restart is attempted.

Aus der Druckschrift EP 0 411 618 A3 ist ein elektronisches Vorschaltgerät für Gasentladungslampen bekannt, das einen Eingangsschaltungsteil zur Erzeugung einer Zwischenkreisgleichspannung aus einer Versorgungsspannung mit einem von der Zwischenkreisgleichspannung gespeisten Oszillatorschaltungsteil zur Erzeugung eines Wechselsignals aufweist, welches den Gasentladungslampen zuführbar ist. Weiter weist das Vorschaltgerät einen bistabilen Abschalt-Halteschaltungsteil auf, welcher in seinem ersten bzw. zweiten stabilen Zustand den Oszillatorschaltungsteil ein Abschaltsignal zuführt und das Oszillatorschaltungsteil dadurch freigibt bzw. abschaltet. Ein aus dem Wechselsignal abgeleitetes erstes Signal steuert bei Überschreiten eines vorbestimmten Wertes den Abschalt-Halteschaltungsteil von seinem ersten in seinen zweiten stabilen Zustand und erzeugt das Abschaltsignal. Ein weiteres aus der Zwischenkreis-Gleichspannung abgeleitetes Signal erzeugt das Abschaltsignal, wenn die Zwischenkreis-Gleichspannung einen vorgegebenen Maximalwert überschreitet.From the publication EP 0 411 618 A3 an electronic ballast for gas discharge lamps is known, which has an input circuit part for generating a DC link voltage from a supply voltage with an supplied from the DC link voltage oscillator circuit part for generating an alternating signal which can be supplied to the gas discharge lamps. Furthermore, the ballast has a bistable switch-off holding circuit part, which in its first or second stable state supplies the oscillator circuit part with a switch-off signal and thereby releases or switches off the oscillator circuit part. A first signal derived from the alternating signal controls the cut-off holding circuit part from its first to its second stable state when it exceeds a predetermined value and generates the switch-off signal. Another signal derived from the DC link voltage generates the switch-off signal when the DC link voltage exceeds a predetermined maximum value.

Ausgangspunkt und Aufgabe für die vorliegende Erfindung ist es dementsprechend, eine Ansteuerung für Leuchtmittel-Betriebsgeräte vorzuschlagen, die eine kostengünstigere Fertigung von Betriebsgeräten ermöglicht.Accordingly, the starting point and object of the present invention is to propose a drive for light source operating devices, which enables a more cost-effective production of operating devices.

Zentraler Punkt der Erfindung ist es dabei, dass die Einheit Gleichrichter/PFC nicht mehr lokal in jedem Betriebsgerät, sondern zentral für mehrere Betriebsgeräte vorgesehen ist. Die Verbindung zwischen dieser Zentrale und den einzelnen Betriebsgeräten erfolgt erfindungsgemäß über einen DC-Ausgangskreis.The central point of the invention is that the unit rectifier / PFC is no longer provided locally in each operating device, but centrally for several operating devices. The connection between this center and the individual operating devices is carried out according to the invention via a DC output circuit.

Gleichzeitig soll trotz der zentralen Ausgestaltung eine flexible und auf die Bedürfnisse der angeschlossenen Betriebsgeräte angepasste Versorgung ermöglicht werden.At the same time a flexible and adapted to the needs of the connected equipment supply is to be made possible despite the central design.

Die oben angeführte Aufgabe wird durch die Merkmale der unabhängigen Ansprüche gelöst. Die abhängigen Ansprüche bilden den zentralen Gedanken der Erfindung in besonders vorteilhafter Weise weiter.The above object is solved by the features of the independent claims. The dependent claims further form the central idea of the invention in a particularly advantageous manner.

Gemäß einem ersten Aspekt der vorliegenden Erfindung ist ein System zur zentralen Spannungsversorgung von Betriebsgeräten (Betriebsmitteln) für Leuchtmittel vorgesehen. Das System weist dabei eine zentrale Gleichrichter-Einheit mit einem eingangsseitigen Anschluß für Wechselspannung und mehreren DC-Ausgangskreisen auf, darunter ein Niederspannungs-Ausgangs kreis. Weiterhin sind mehrere Betriebsgeräte für Leuchtmittel vorgesehen, die über die DC-Ausgangskreise mit Spannung versorgt werden. Dabei weist die zentrale Gleichrichter-Einheit eine Schaltung zur Regelung der Spannung, des Stroms und/oder der Leistung der DC-Ausgangskreise auf.According to a first aspect of the present invention, a system for the central power supply of operating devices (operating means) for lighting means is provided. The system has a central rectifier unit with an input side terminal for AC voltage and multiple DC output circuits, including a low-voltage output circuit. Furthermore, several operating devices are provided for lamps, which are supplied via the DC output circuits with voltage. In this case, the central rectifier unit has a circuit for regulating the voltage, the current and / or the power of the DC output circuits.

Dabei kann die zentrale Gleichrichter-Einheit beispielsweise eine Schaltung zur Strombegrenzung des DC-Ausgangskreises aufweisen.In this case, the central rectifier unit, for example, have a circuit for limiting the current of the DC output circuit.

Die zentrale Gleichrichter-Einheit kann dazu ausgelegt sein, den DC-Ausgangskreis abzuschalten, sobald die (überwachte) Spannung des DC-Ausgangskreises einen vorbestimmten Wert unterschreitet.The central rectifier unit can be designed to switch off the DC output circuit as soon as the (monitored) voltage of the DC output circuit falls below a predetermined value.

Dazu kann die zentrale Gleichrichter-Einheit eine Überwachungseinheit für den Zustand des DC-Ausgangskreises aufweisen.For this purpose, the central rectifier unit may have a monitoring unit for the state of the DC output circuit.

Die Überwachungseinheit kann vorab definierte Änderungen des Zustands des DC-Ausgangskreises als Störungen der angeschlossenen Betriebsgeräte für Leuchtmittel und/oder als definierte Rückmeldungssignale eines Betriebsgeräts auswerten.The monitoring unit can evaluate previously defined changes in the state of the DC output circuit as failures of the connected operating devices for lighting devices and / or as defined feedback signals of a control gear.

Die zentrale Gleichrichter-Einheit kann eine Signal-Schnittstelle aufweisen, über die ihr vorab Informationen über zukünftige Laständerungen, insbesondere Lastsprünge im DC-Ausgangskreis zuführbar sind.The central rectifier unit can have a signal interface via which information about future load changes, in particular load jumps in the DC output circuit, can be fed to it in advance.

Als Antwort auf derartige Informationen bezüglich zukünftiger Laständerungen im DC-Ausgangskreis können Parameter der zentralen Gleichrichter-Einheit eingestellt werden.In response to such information regarding future load changes in the DC output circuit, parameters of the central rectifier unit may be adjusted.

Die zentrale Gleichrichter-Einheit kann beispielsweise in Form parallel geschalteter Module aufgebaut sein, wobei abhängig von den Informationen bezüglich zukünftiger Laständerungen Module zu- bzw. abgeschaltet werden.The central rectifier unit can be constructed, for example, in the form of modules connected in parallel, with modules being switched on or off depending on the information regarding future load changes.

Die zentrale Gleichrichter-Einheit kann den DC-Ausgangskreis in ein Standby-Zustand überführen, in dem die Busspannung verringert ist.The central rectifier unit may transition the DC output circuit to a standby state in which the bus voltage is reduced.

Dabei kann die verringerte Busspannung vorteilhafterweise derart gewählt sein, daß sie zur Versorgung von Logikbauteilen, wie beispielsweise Asics, in einem Betriebsgerät für Leuchtmittel ausreicht.In this case, the reduced bus voltage can advantageously be chosen such that it is sufficient to supply logic components, such as Asics, in a control gear for lighting.

Ergänzend kann die zentrale Gleichrichter-Einheit weiterhin eine Leistungsfaktor-Korrektureinheit aufweisen.In addition, the central rectifier unit may further comprise a power factor correction unit.

Gemäß einem weiteren Aspekt der vorliegenden Erfindung ist ein Verfahren zur zentralen Spannungsversorgung von Betriebsgeräten für Leuchtmittel vorgesehen. Dabei regelt eine zentrale Gleichrichter-Einheit die Spannung, den Strom und/oder die Leistung in einem DC-AUsgangskreis. Der zentralen Gleichrichtereinheit wird an einem eingangsseitigen Anschluss Wechselspannung zugeführt, die gleichgerichtet an mehreren DC-Ausgangskreisen bereitgestellt wird, darunter ein Niederspannungs-Versorgungskreis. Mehrere Betriebsgeräte für Leuchtmittel, werden über die DC-Ausgangskreise mit Spannung versorgt.According to a further aspect of the present invention, a method for the central power supply of operating devices for lighting means is provided. A central rectifier unit regulates the voltage, the current and / or the power in a DC output circuit. The central rectifier unit is supplied at an input side terminal AC voltage, which is rectified provided on a plurality of DC output circuits, including a low-voltage supply circuit. Several operating devices for light sources are supplied with voltage via the DC output circuits.

Gemäß einem noch weiteren Aspekt der vorliegenden Erfindung ist ein Verfahren zur zentralen Spannungsversorgung von Betriebsgeräten für Leuchtmittel vorgesehen, wobei einer zentralen Gleichrichter-Einheit vorab Informationen über zukünftige Laständerungen, insbesondere Lastsprünge im DC-Ausgangskreis zugeführt werden, so daß sich die zentrale Gleichrichter-Einheit vorab auf derartige zu erwartende Laständerungen einstellen kann.According to yet another aspect of the present invention, a method for central power supply of operating devices for lighting means is provided, wherein a central rectifier unit be supplied in advance information about future load changes, in particular load jumps in the DC output circuit, so that the central rectifier unit in advance can adjust to such expected load changes.

Weitere Merkmale, Vorteile und Eigenschaften der vorliegenden Erfindung sollen nunmehr unter Bezugnahme auf die Figuren der beigefügten Zeichnungen sowie die folgende detaillierte Beschreibung eines Ausführungsbeispieles näher erläutert werden.

Fig. 1
zeigt eine schematische Ansicht eines erfindungsgemäßen Steuersystems für Leuchtmittel- Betriebsgeräte mit zentraler Gleichrichter/PFC- Einheit und DC-Ausgangskreis,
Fig. 2
zeigt eine aus dem Stand der Technik bekannte Betriebsmittel-Ausgestaltung für Gasentladungslampen,
Fig. 3
zeigt einen ersten schematischen Schaltplan eines Ausführungsbeispiels der vorliegenden Erfindung, und
Fig. 4
zeigt einen schematischen Schaltplan zur Erläuterung des Ablaufs bei einer Vorab-Informationen einer zentralen Gleichrichter-Einheit bezüglich zukünftiger zu erwartender Lastsprünge im DC-Ausgangskreis.
Further features, advantages and features of the present invention will now be explained in more detail with reference to the figures of the accompanying drawings and the following detailed description of an embodiment.
Fig. 1
shows a schematic view of a control system according to the invention for light-emitting devices with central rectifier / PFC unit and DC output circuit,
Fig. 2
shows a known from the prior art equipment design for gas discharge lamps,
Fig. 3
shows a first schematic circuit diagram of an embodiment of the present invention, and
Fig. 4
shows a schematic circuit diagram for explaining the sequence in a pre-information of a central rectifier unit with respect to future expected load jumps in the DC output circuit.

Wie in Fig. 1 gezeigt, ist eine Zentraleinheit, aufweisend beispielsweise einen Gleichrichter 2 sowie ggf. auch eine Leistungsfaktor-Korrekturschaltung (PFC) 10, gemeinsam für mehrere Leuchtmittel-Betriebsgeräte 1, 1', 1" vorgesehen. Die Zentraleinheit 2 wird mit (Netz-)Wechselspannung 9 versorgt. Die Zentraleinheit 2, 10 kann im übrigen auch räumlich von den Betriebsgeräten getrennt sein und bspw. zentral für einen Raum, eine Etage oder gar ein Gebäude in einem Schaltschrank etc. angeordnet werden.As in Fig. 1 A central unit, comprising, for example, a rectifier 2 and optionally also a power factor correction circuit (PFC) 10, is jointly provided for a plurality of lamp operating devices 1, 1 ', 1 " The central unit 2, 10 can also be spatially separated from the operating devices and, for example, be arranged centrally for a room, a floor or even a building in a control cabinet, etc.

Wie in Fig. 1 schematisch angedeutet, können die verschiedenen Leuchtmittel-Betriebsgeräte 1, 1', 1" verschiedenste Leuchtmittel, wie beispielsweise eine Gasentladungslampe 5, Leuchtdioden 5', etc. ansteuern. Die Leuchtmittel selbst können dabei mit DC- oder mit AC-Spannung betrieben werden, wobei in letzerem Fall in dem zugehörigen Betriebsgerät ein Wechselrichter vorgesehen ist.As in Fig. 1 indicated schematically, the various light-emitting devices operating devices 1, 1 ', 1 "a variety of light sources, such as a gas discharge lamp 5, light emitting diodes 5', etc. Actuate the bulbs themselves can be operated with DC or AC voltage, wherein in the latter case, an inverter is provided in the associated operating device.

Weiterhin können an einen DC-Ausgangskreis 11 der Zentraleinheit auch andere (bspw. passive) lichttechnische oder gebäudetechnische Einrichtungen, wie beispielsweise ein Lichtsensor 5" oder ein Bewegungsmelder (nicht dargestellt) angeschlossen sein.Furthermore, other (eg passive) lighting or building services equipment, such as a light sensor 5 "or a motion detector (not shown) may be connected to a DC output circuit 11 of the central unit.

Je nach Natur der angeschlossenen Leuchtmittel 5, 5' bzw. Sensoren 5" sind die Betriebsgeräte 1, 1', 1" unterschiedlich ausgebildet. Für den Fall, dass eine Gasentladungslampe 5 angesteuert werden soll, ist das entsprechende Betriebsgerät 3 bspw. als elektronisches Vorschaltgerät (EVG) u.a. mit einem Wechselrichter ausgebildet. Die Betriebsgeräte können in diesem Fall auch als "Ausgangs-Konverter" bezeichnet werden.Depending on the nature of the connected lamps 5, 5 'or sensors 5 ", the operating devices 1, 1', 1" are designed differently. In the event that a gas discharge lamp 5 is to be activated, the corresponding operating device 3 For example, designed as an electronic ballast (ECG), inter alia, with an inverter. In this case, the operating devices can also be referred to as "output converters".

Die Spannungsversorgung der Betriebsgeräte und Leuchtmittel und optional auch die uni- oder bidirektionale Kommunikation zwischen der Zentraleinheit und den lokalen Betriebsgeräten 1, 1', 1" erfolgt über wenigstens einen DC-Ausgangskreis 11, 12. Wie in Fig. 1 schematisch dargestellt kann dabei ein Ausgangskreis 11 busartig ausgestaltet sein, so dass ausgehend von diesem zentralen gemeinsamen Bus 11 die verschiedenen Betriebsgeräte 1, 1', 1" über Stichleitungen 13, 13', 13" versorgt werden. Alternativ oder zusätzlich können für einzelne Betriebsgeräte bzw. gemeinsam versorgte Gruppen an Betriebsgeräten individuelle Ausgangskreise 12 vorgesehen sein.The power supply of the operating devices and lamps and optionally also the unidirectional or bidirectional communication between the central unit and the local operating devices 1, 1 ', 1 "via at least one DC output circuit 11, 12. As in Fig. 1 shown schematically may be designed bus-like an output circuit 11, so that starting from this central common bus 11, the various operating devices 1, 1 ', 1 "are supplied via stubs 13, 13', 13". Alternatively or additionally, individual output circuits 12 may be provided for individual operating devices or jointly supplied groups of operating devices.

Dieser DC-Ausgangskreis hat den Vorteil, dass er im Vergleich zu entsprechenden AC-Kreisen weniger anfällig gegenüber parasitären Effekten ist.This DC output circuit has the advantage of being less susceptible to parasitic effects than corresponding AC circuits.

Festzuhalten ist, dass gemäß der vorliegenden Erfindung die Zentraleinheit für mehrere Betriebsgeräte gemeinsam vorgesehen ist, wobei die Zentraleinheit mit den Betriebsgeräten mittels wenigstens einem DC-Ausgangskreis verbunden ist.It should be noted that according to the present invention, the central unit is provided for a plurality of operating devices in common, wherein the central unit is connected to the operating devices by means of at least one DC output circuit.

Wenigstens ein PFC 10 kann dabei einen bspw. Mittels eines Trafos oder dgl. potentialgetrennten Ausgangskreis versorgen.At least one PFC 10 can supply an example, by means of a transformer or the like. Potential-separated output circuit.

Eine besondere Ausgestaltung eines derartigen Systems der zentralen Spannungsversorgung von Betriebsgeräten für Leuchtmittel soll nunmehr bezugnehmend auf Fig. 3 erläutert werden. In Fig. 3 ist eine zentrale Steuereinheit 31 dargestellt, die mehrere Gleichrichter/PFC-Module 36 aufweist, die parallel zueinander angeordnet sind. Weiterhin ist in der zentralen Gleichrichter-Einheit 31 eine Überwachungs/Steuereinheit 393 vorgesehen.A particular embodiment of such a system of the central power supply of operating devices for lighting should now reference to Fig. 3 be explained. In Fig. 3 a central control unit 31 is shown, which has a plurality of rectifier / PFC modules 36, which are arranged parallel to each other. Furthermore, a monitoring / control unit 393 is provided in the central rectifier unit 31.

Vergleichbar zu dem Ausführungsbeispiel von Fig. 1 wird der zentralen Gleichrichter-Einheit 31 eine Wechselspannung 35, insbesondere eine Netzspannung zugeführt. Die Gleichrichter-Einheit 31 weist im Ausführungsbeispiel von Fig. 3 mehrere DC-Ausgangskreise auf, nämlich einen Hochspannungs-Ausgangskreis 39, einen Niederspannungs-Ausgangskreis 392 sowie einen nichtspannungsführenden Anschluß 34, der mit Masse verbunden ist. Über die genannten DC-Ausgangskreise 39, 392 und 34 sind angeschlossene Betriebsgeräte 32 für Leuchtmittel 33 versorgbar. Rein als ein Beispiel sind in Fig. 3 schematisch elektronische Vorschaltgeräte (EVGs) mit Wechselrichtern DC/AC vorgesehen, mit denen Gasentladungslampen 33 in an sich bekannter Weise angesteuert werden können.Comparable to the embodiment of Fig. 1 the central rectifier unit 31 is supplied with an AC voltage 35, in particular a mains voltage. The rectifier unit 31 has in the embodiment of Fig. 3 a plurality of DC output circuits, namely a high-voltage output circuit 39, a low-voltage output circuit 392 and a non-voltage-carrying terminal 34 which is connected to ground. Via the mentioned DC output circuits 39, 392 and 34, connected operating devices 32 for lighting means 33 can be supplied. Purely as an example are in Fig. 3 schematically electronic ballasts (ECGs) with inverters DC / AC provided with which gas discharge lamps 33 can be controlled in a conventional manner.

Mit dem Mittelspannungs-Ausgangskreis 392 kann beispielsweise die Niederspannungs-Versorgung von Logikbauteilen in den Betriebsgeräten 32, wie beispielsweise von Asics bereitgestellt werden. Alternativ oder zusätzlich kann der Niederspannungs-Ausgangskreis 302 auch zur Signalübermittlung (beispielsweise in Form eines digitalen Busses) von der Zentraleinheit 31 zur den angeschlossenen Betriebsgeräten 32 und ggf. auch umgekehrt (bidirektionaler Bus) verwendet werden.With the medium voltage output circuit 392, for example, the low-voltage supply of logic components in the operating devices 32, such as provided by Asics. Alternatively or additionally, the low-voltage output circuit 302 can also be used for signal transmission (for example in the form of a digital bus) from the central unit 31 to the connected operating devices 32 and possibly vice versa (bidirectional bus).

Da bekanntlich das Ausschalten über eine DC-Leitung mit hoher Spannung (hier beispielsweise DC-Ausgangskreis 39) zu Problemen bezüglich der Bildung einer Funkenstrecke (Lichtbogen) führen kann, kann vorteilhafterweise auch ein Ausschalten der an die Betriebsgeräte 32 angeschlossenen Leuchtmittel 33 durch einen einfachen Schalter 391 im Niederspannungs-Ausgangskreis 392 erreicht werden. Ein Öffnen des Schalters 391 kann entweder als digitales Signal durch lokale Steuereinheiten in den Betriebsgeräten 32 ausgewertet werden. Alternativ kann durch Öffnen des Schalters 391 eine Spannungsversorgung für Logikbauteilen in den Betriebsgeräten 32 abgeschaltet werden, so daß die angeschlossenen Leuchtmittel 33 indirekt abgeschaltet werden.Since it is known that switching off via a high-voltage DC line (here, for example, DC output circuit 39) can lead to problems with respect to the formation of a spark gap (arc), it is also advantageously possible to switch off the lighting means 33 connected to the operating devices 32 by means of a simple switch 391 in the low-voltage output circuit 392 can be achieved. Opening the switch 391 can either be evaluated as a digital signal by local control units in the operating devices 32. Alternatively, by opening the switch 391, a power supply for logic components in the operating devices 32 can be switched off, so that the connected lighting means 33 are switched off indirectly.

Es ist vorgesehen, daß die zentrale Gleichrichtereinheit 31 zumindest bezüglich des DC-Ausgangskreises 39, also einem rein leistungsversorgenden DC-Ausgangskreis ohne Steuerfunktion, die Spannung U, den Strom I und/oder die Leistung P mittels der Überwachung-/Steuerschaltung 393 überwacht.It is envisaged that the central rectifier unit 31 at least with respect to the DC output circuit 39, so a purely power-supplying DC output circuit without control function, the voltage U, the current I and / or the power P monitored by the monitoring / control circuit 393.

Die Überwachungs-/Steuerschaltung 31 kann dabei die Funktion einer Strombegrenzung des DC-Ausgangskreises 39 aufweisen. Es sei anzumerken, daß in bestimmten Fällen auch der Niederspannungs-Ausgangskreis 392 zur Leistungsversorgung dienen kann. Dies ist beispielsweise vorteilhafterweise bei der Ansteuerung von LEDs der Fall. In diesem Fall kann die Überwachung-/Regelungsfunktion der Spannung, des Stroms und/oder der Leistung auch auf diesen Ausgangskreisen Anwendung finden.The monitoring / control circuit 31 may have the function of a current limiting of the DC output circuit 39. It should be noted that in certain cases, the low-voltage output circuit 392 can serve for power supply. This is for example advantageously the case with the driving of LEDs. In this case, the voltage monitoring / control function, current and / or power can also be applied to these output circuits.

Die Überwachungs-/Steuereinheit 393 kann eine Funktion aufweisen, daß der DC-Ausgangskreis abgeschaltet wird, falls die Spannung des entsprechenden DC-Ausgangskreises einen vorbestimmten Wert unterschreitet.The monitoring / control unit 393 may have a function that the DC output circuit is turned off if the voltage of the corresponding DC output circuit is below a predetermined value.

Durch die kontinuierliche oder abschnittsweise Überwachung des Zustands des DC-Ausgangskreises 39 und ggf. auch 392 können verschiedene Rückschlüsse aus einer Zustandsänderung des entsprechenden DC-Ausgangskreises geschlossen werden. Beispielsweise kann eine Zustandsänderung auf einen Fehlerzustand wenigstens eines angeschlossenen Betriebsgeräts 32 schließen lassen. Alternativ oder zusätzlich können vorab auch mit den Betriebsgeräten 32 definierte Zustandsänderungen des DC-Ausgangskreises 39 bzw. 392 im Sinne einer Signal-Rückmeldung von einem Betriebsgerät 32 zu der Zentraleinheit 31 verabredet sein. Somit stellt die Zustandsänderung eines Ausgangskreises dann einen Rückkanal eines Signalbusses dar. Eine derartige Zustandsänderung des DC-Ausgangskreises kann bspw. durch einen schaltbaren Lastkreis in wenigstens einem der Betriebsmittel gezielt ausgelöst werden.By continuously or partially monitoring the state of the DC output circuit 39 and possibly also 392, different conclusions can be drawn from a change in state of the corresponding DC output circuit. For example, a state change may indicate an error state of at least one connected operating device 32. Alternatively or additionally, state changes of the DC output circuit 39 or 392 defined in advance with the operating devices 32 can also be arranged in the sense of a signal feedback from an operating device 32 to the central unit 31. Thus, the change in state of an output circuit then represents a return channel of a signal bus. Such a change in state of the DC output circuit can be triggered selectively, for example, by a switchable load circuit in at least one of the resources.

Da wie gesagt Strom, Spannung und/oder Leistung der DC-Ausgangskreise überwacht und geregelt sein können, kann die Zentraleinheit 31 beispielsweise auch einen DC-Ausgangskreis (beispielsweise 39) in einen Standby-Zustand versetzen, in dem die Busspannung deutlich abgesenkt ist. Dies hat den Vorteil, daß die abgesenkte Busspannung derart gewählt sein kann, daß sie immer noch zur Leistungsversorgung von Logikbauteilen (beispielsweise Asics) in einem angeschlossenen Betriebsgerät ausreichen. Somit kann ein angeschlossenes Betriebsgerät 32 in einen Standby-Zustand versetzt werden, in dem die Steuerlogik noch aktiv mit Spannung versorgt ist, die aktuelle Busspannung aber nicht zur Ansteuerung beispielsweise einer angeschlossenen Gasentladungslampe 33 ausreichen würde.As mentioned, since current, voltage and / or power of the DC output circuits can be monitored and regulated, the central unit 31 can for example also put a DC output circuit (for example 39) in a standby state, in which the bus voltage is significantly lowered. This has the advantage that the lowered bus voltage can be chosen such that they are still sufficient to supply power to logic components (for example Asics) in a connected operating device. Thus, a connected operating device 32 can be placed in a standby state in which the control logic is still actively supplied with power, the current bus voltage but not to control, for example, a connected gas discharge lamp 33 would be sufficient.

Die Absenkung der Busspannung hat andererseits den Vorteil, daß für den Fall, daß ausgehend von einer hohen Busspannung von beispielsweise 400 Volt bei dem DC-Ausgangskreis 39 eine Niedervolt-Versorgungsspannung von beispielsweise 12 Volt für Logikbauteile gewonnen wird, die bei der Erzeugung der Niedervolt-Spannungsversorung auftretenden (ohmschen) Verluste deutlich reduziert werden.The lowering of the bus voltage on the other hand has the advantage that, in the event that, starting from a high bus voltage of, for example, 400 volts at the DC output circuit 39, a low-voltage supply voltage of, for example, 12 volts for logic components is obtained, which in the generation of low-voltage Voltage supply occurring (resistive) losses are significantly reduced.

Bezugnehmend auf Fig. 4 soll nunmehr ein besonders vorteilhafter Ablauf erläutert werden, wie er mit der vorliegenden Erfindung erreichbar ist. Auch wenn in Fig. 4 die Zentraleinheit 41 mit nur einem Gleichrichter-/Leistungsfaktor-Korrekturmodul 46 dargestellt ist, ist zu verstehen, daß auch hier der parallele modulare Aufbau wie aus Fig. 3 bekannt, Verwendung finden kann. Auch bei dem Ausführungsbeispiel von Fig. 4 ist der Strom, die Spannung und/oder die Leistung des DC-Ausgangskreises 44 für angeschlossene Betriebsmittel 42 für angeschlossene Leuchtmittel 43 überwacht und geregelt. Gemäß der Erfindung werden dabei plötzliche Laständerungen, insbesondere Lastsprünge im DC-Ausgangskreis 44, d.h. die entsprechende Zustandsänderung der Betriebsmittel 42 mit angeschlossenen Leuchtmitteln 43, erst ausgeführt, wenn vorab eine Information (S1 in Fig. 4) an die Zentraleinheit 41 übermittel wurde. Somit können Parameter der Zentraleinheit 41 derart eingestellt werden, daß sich diese auf die zu erwartende zukünftige Last im DC-Ausgangskreis 44 einstellt. Diese Einstellung kann bei der Übertragung des Ausführungsbeispiels von Fig. 3 auf den Ablauf gemäß Fig. 4 darin bestehen, daß parallel geschaltete Module in der Zentraleinheit 41 zu- bzw. abgeschaltet werden. Selbstverständlich können auch die Werte für die geregelte Parameterleistung, Strom bzw. Spannung vorab in Erwartung eines Leistungssprungs im DC-Ausgangskreis eingestellt werden.Referring to Fig. 4 Now, a particularly advantageous procedure will be explained, as it can be achieved with the present invention. Even if in Fig. 4 the central unit 41 is shown with only one rectifier / power factor correction module 46, it should be understood that here too the parallel modular structure is as shown in FIG Fig. 3 known, can be used. Also in the embodiment of Fig. 4 the current, voltage and / or power of the DC output circuit 44 for connected equipment 42 for connected lamps 43 is monitored and regulated. According to the invention thereby sudden load changes, in particular load jumps in the DC output circuit 44, that is, the corresponding change in state of the operating means 42 with connected bulbs 43, only executed if in advance an information (S1 in Fig. 4 ) was transmitted to the central unit 41. Thus, parameters of the central processing unit 41 can be adjusted so that it adjusts to the expected future load in the DC output circuit 44. This setting can be used in the transmission of the embodiment of Fig. 3 according to the procedure Fig. 4 consist in that parallel-connected modules in the central unit 41 on or off. Of course, the values for the regulated parameter power, current or voltage can be set in advance in anticipation of a power jump in the DC output circuit.

Wenn also eine Leistungsänderung im DC-Ausgangskreis 44 erfolgen soll, wird sichergestellt, daß die Zentraleinheit 41 auf diese Leistungsänderung vorbereitet ist. Dies kann dadurch geschehen, daß beispielsweise nach Übermittlung der Vorabinformation S1 an die Zentraleinheit 41 eine definierte Zeitspanne ablaufen muß, bevor das eigentliche Ansteuersignal S3 an die Betriebsmittel 42 für die Leuchtmittel 43 übermittelt wird. Andererseits kann aber auch vorgesehen sein, daß diese Ansteuerbefehle S3 erst dann übermittelt werden, wenn eine definierte Rückmeldung von der Zentraleinheit 41 erfolgte.Thus, when a power change is to take place in the DC output circuit 44, it is ensured that the CPU 41 is prepared for this power change. This can be done by, for example, after transmission of the preliminary information S1 to the central unit 41, a defined period of time must elapse before the actual drive signal S3 is transmitted to the resources 42 for the bulbs 43. On the other hand, however, it can also be provided that these activation commands S3 are not transmitted until a defined feedback has been received from the central unit 41.

In dem Ausführungsbeispiel von Fig. 4 werden Ansteuersignale zur Zustandsänderung eines Leuchtmittels 43 beispielsweise von einem Digital- oder Analogbus 491 oder ausgehend von einem Taster- oder Schalterbefehl 492 einer Powerline-Modulationseinheit 48 übermittelt. Diese Modulationseinheit 48 moduliert also Steuersignale auf die DC-Ausgangskreis 44. In diesem Fall der Powerline-Steuerbefehlübertragung weist natürlich das angeschlossene Betriebsmittel 42 einen Powerline-Demodulator 493 auf, um über den Bus 44 übertragene Befehle auslesen zu können.In the embodiment of Fig. 4 For example, control signals for changing the state of a luminous means 43 are transmitted from a digital or analog bus 491 or from a pushbutton or switch command 492 to a powerline modulation unit 48. This modulation unit 48 thus modulates control signals to the DC output circuit 44. In this case, the powerline control command transmission, of course, the connected equipment 42 has a powerline demodulator 493 to read over the bus 44 transmitted commands can.

In dem Ablauf gemäß Fig. 4 gibt also beispielsweise ein Benutzer eine Leistungsänderung für ein Leuchtmittel 43 mittels des Schalters oder Tasters 492 und/oder über den Digital- bzw.In the process according to Fig. 4 Thus, for example, a user gives a power change for a lighting means 43 by means of the switch or push button 492 and / or via the digital or

Analogbus 491 vor. Der Powerline-Modulator 48 erzeugt daraus eine Vorabnachricht an die Zentraleinheit 41, die diese also durch Auslesen der Powerline-Nachricht von dem DC-Ausgangskreis 44 erfaßt. Daraufhin erfolgt die Parameter-Adaption in der Zentraleinheit 41. Schließlich bestätigt die Zentraleinheit 41 gegenüber dem Powerline-Modulator 48, daß die Adaption ausgeführt wurde. Erst dann übermittelt der Powerline-Modulator 48 den eigentlichen Steuerbefehl in einem Schritt S3 über den DC-Bus 44 bzw. eine separate Steuerleitung an das anzusteuernde Betriebsmittel 42.Analog bus 491 before. The powerline modulator 48 generates a preliminary message to the central unit 41, which thus detects it by reading the powerline message from the DC output circuit 44. Subsequently, the parameter adaptation takes place in the central unit 41. Finally, the central unit 41 confirms to the powerline modulator 48 that the adaptation has been carried out. Only then does the powerline modulator 48 transmit the actual control command in a step S3 via the DC bus 44 or a separate control line to the operating means 42 to be controlled.

Claims (27)

  1. System for central voltage supply to operating devices for light-emitting means, having:
    - a central rectifier unit (31) with an input-side terminal for AC voltage (35) and a plurality of DC output circuits (39, 392), including a low-voltage output circuit (392), and
    - a plurality of operating devices (32) for light-emitting means (33), to which voltage is supplied via the DC output circuits (39, 392),
    wherein the central rectifier unit (31) has a circuit (393, 36) for the closed-loop control of the voltage, the current and/or the power of the DC output circuits.
  2. System according to Claim 1, characterized in that the central rectifier unit (31) has a circuit (393, 36) for current limitation of the DC output circuit.
  3. System according to Claim 1 or 2, characterized in that the central rectifier unit (31) is designed to disconnect the DC output circuit (39, 392) if the voltage of the DC output circuit falls below a predetermined value.
  4. System according to one of the preceding claims, characterized in that the central rectifier unit (31) has a monitoring unit (393), which evaluates the state of the DC output circuit.
  5. System according to Claim 4, characterized in that the monitoring unit (393) evaluates predefined changes in the state of the DC output circuit (39, 392) as faults in the connected operating devices (32) for light-emitting means (33) and generates a fault signal.
  6. System according to Claim 4, characterized in that the monitoring unit (393) evaluates predefined changes in the state of the DC output circuit as defined feedback of an operating device (32) for light-emitting means (33) via the DC output circuit.
  7. System according to one of the preceding claims, characterized in that the central rectifier unit (31) has a signal interface, via which information relating to future load changes, in particular sudden changes in load in the DC output circuit (39, 393), can be supplied to said central rectifier unit (31) in advance.
  8. System according to Claim 7, characterized in that parameters of the central rectifier unit (31) can be adjusted depending on the information with respect to future load changes.
  9. System according to Claim 8, characterized in that the central rectifier unit (31) is in the form of modules (36) connected in parallel, wherein modules can be connected or disconnected depending on the information with respect to future load changes.
  10. System according to one of the preceding claims, characterized in that the central rectifier unit (31) can transfer the DC output circuit into a standby state with a reduced bus voltage.
  11. System according to Claim 10, characterized in that the reduced bus voltage is selected such that it is sufficient for supplying logic modules in an operating device (32) for light-emitting means (33).
  12. System according to one of the preceding claims, characterized in that the central rectifier unit furthermore has a power factor correction unit.
  13. System according to one of the preceding claims, characterized in that the central control unit (31) has a plurality of rectifiers/PFC modules (36) connected in parallel.
  14. Method for central voltage supply to operating devices for light-emitting means, wherein:
    - AC voltage is supplied to a central rectifier unit (31) at an input-side terminal, said AC voltage being rectified and provided at a plurality of DC output circuits (39, 392), including a low-voltage supply circuit (392), and
    - voltage is supplied to a plurality of operating devices (32) for light-emitting means (33) via the DC output circuits, and
    - the central rectifier unit (31) subjects the voltage, the current and/or the power of the DC output circuits to closed-loop control.
  15. Method according to Claim 14, characterized in that the central rectifier unit (31) limits the current of the DC output circuit.
  16. Method according to Claim 14 or 15, characterized in that the central rectifier unit (31) disconnects the DC output circuit (39, 392) if the voltage of the DC output circuit falls below a predetermined value.
  17. Method according to one of Claims 14 to 16, characterized in that the central rectifier unit (31) monitors and evaluates the state of the DC output circuit.
  18. Method according to Claim 17, characterized in that the monitoring unit (393) evaluates predefined changes in the state of the DC output circuit as faults in the connected operating devices (32) for light-emitting means (33) and generates a fault signal.
  19. Method according to Claim 18, characterized in that the monitoring unit (393) evaluates predefined changes in the state of the DC output circuit as defined feedback of an operating device (32) for light-emitting means (33) via the DC output circuit.
  20. Method according to one of Claims 14 to 19, characterized in that information relating to future load changes, in particular sudden changes in load in the DC output circuit, is supplied to the central rectifier unit (31) in advance.
  21. Method according to Claim 20, characterized in that parameters of the central rectifier unit (31) are adjusted depending on the information with respect to future load changes.
  22. Method according to Claim 21, characterized in that the load changes are only implemented once the parameters of the central rectifier unit have been adjusted.
  23. Method according to Claim 22, characterized in that an open-loop control unit (48) first triggers the adjustment of the parameters of the central rectifier unit (31) before load-changing manipulated value signals are transmitted to an operating device for light-emitting means.
  24. Method according to one of Claims 21 to 23, characterized in that the central rectifier unit (31) is in the form of modules (36) connected in parallel, wherein modules are connected or disconnected depending on the information with respect to future load changes.
  25. Method according to one of Claims 14 to 24, characterized in that, in a standby state, the voltage of the DC output circuit is reduced.
  26. Method according to Claim 25, characterized in that the reduced bus voltage is selected such that it is sufficient for supplying logic modules in an operating device for light-emitting means.
  27. Computer software product, characterized in that it supports a method according to one of Claims 14 to 26 if it is run in a computation device which is part of a lighting control system.
EP04028277A 2004-01-14 2004-11-29 Central power supply for lamp operation devices containing a central PFC/rectification device Active EP1555858B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL04028277T PL1555858T3 (en) 2004-01-14 2004-11-29 Central power supply for lamp operation devices containing a central PFC/rectification device
EP11162425.0A EP2365737B1 (en) 2004-01-14 2004-11-29 Central PFC with DC output circuit regulation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004002027.2A DE102004002027B4 (en) 2004-01-14 2004-01-14 Central PFC with DC output circuit control
DE102004002027 2004-01-14

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP11162425.0A Division EP2365737B1 (en) 2004-01-14 2004-11-29 Central PFC with DC output circuit regulation
EP11162425.0 Division-Into 2011-04-14

Publications (3)

Publication Number Publication Date
EP1555858A2 EP1555858A2 (en) 2005-07-20
EP1555858A3 EP1555858A3 (en) 2005-08-31
EP1555858B1 true EP1555858B1 (en) 2011-08-17

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EP11162425.0A Active EP2365737B1 (en) 2004-01-14 2004-11-29 Central PFC with DC output circuit regulation
EP04028277A Active EP1555858B1 (en) 2004-01-14 2004-11-29 Central power supply for lamp operation devices containing a central PFC/rectification device

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EP11162425.0A Active EP2365737B1 (en) 2004-01-14 2004-11-29 Central PFC with DC output circuit regulation

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EP (2) EP2365737B1 (en)
AT (1) ATE521214T1 (en)
DE (1) DE102004002027B4 (en)
PL (1) PL1555858T3 (en)

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DE102015005240A1 (en) * 2015-04-26 2016-10-27 Tilman Röder Method of installing a power distribution system in the range of low voltage below 25 volts AC or 60 volts DC, using at least one power supply unit to power two or more possible power consumers, and a corresponding power distribution system and associated apparatus
US9648689B2 (en) 2013-10-15 2017-05-09 Philips Lighting Holding B.V. Drive unit for a lighting element and operating method therefor
US20220063146A1 (en) * 2015-10-08 2022-03-03 I.S.T. Innovative Sewer Technologies Gmbh Curing Device Comprising a Lamp that Produces UV Light

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AT14601U1 (en) * 2013-04-30 2016-02-15 Tridonic Gmbh & Co Kg effect lighting
AT14100U1 (en) * 2013-10-16 2015-04-15 Tridonic Gmbh & Co Kg Method and apparatus for communication in a lighting system
EP2925094B1 (en) 2014-03-25 2019-01-30 Tridonic GmbH & Co KG Lighting system and method for operating a lighting system using power consumption for information transmission

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US9648689B2 (en) 2013-10-15 2017-05-09 Philips Lighting Holding B.V. Drive unit for a lighting element and operating method therefor
DE102015005240A1 (en) * 2015-04-26 2016-10-27 Tilman Röder Method of installing a power distribution system in the range of low voltage below 25 volts AC or 60 volts DC, using at least one power supply unit to power two or more possible power consumers, and a corresponding power distribution system and associated apparatus
US20220063146A1 (en) * 2015-10-08 2022-03-03 I.S.T. Innovative Sewer Technologies Gmbh Curing Device Comprising a Lamp that Produces UV Light

Also Published As

Publication number Publication date
PL1555858T3 (en) 2012-01-31
EP2365737A3 (en) 2013-12-11
ATE521214T1 (en) 2011-09-15
EP1555858A2 (en) 2005-07-20
EP1555858A3 (en) 2005-08-31
DE102004002027A1 (en) 2005-08-04
EP2365737B1 (en) 2019-01-30
DE102004002027B4 (en) 2020-03-26
EP2365737A2 (en) 2011-09-14

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