Classifications

• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
  • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
  • H05B41/14—Circuit arrangements
  • H05B41/36—Controlling
  • H05B41/38—Controlling the intensity of light
  • H05B41/39—Controlling the intensity of light continuously
  • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
  • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
  • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
  • H05B47/10—Controlling the light source
  • H05B47/175—Controlling the light source by remote control
  • H05B47/18—Controlling the light source by remote control via data-bus transmission
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
  • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
  • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
  • H02J13/00007—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using the power network as support for the transmission
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
  • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
  • Y02B90/20—Smart grids as enabling technology in buildings sector
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
  • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
  • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
  • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
  • Y04S40/121—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using the power network as support for the transmission

Definitions

• the present invention relates to an interface with an input terminal for selectively receiving AC mains or low voltage digital signals. Moreover, the present invention relates to a dimmable operating device required for operating at least one light source, which has a corresponding interface for data exchange with a control device via a bus.
• Various multifunctional interfaces for controlling dimmable lamp or LED operating devices connected to a bus are known from the prior art.
• the interface can be controlled either via push-button or switch signals or via digital control signals.
• a connected lamp operating device may e.g. be switched on or off by a short press of the button and dimmed by a long press of the button.
• a unidirectional or bidirectional operation is also possible with these interfaces, in which digital control commands, which represent, for example, setpoint values for a brightness control, from the control device connected to the bus to the operating device or the status feedback of the Operating device to be transmitted.
• Multifunctional interfaces must be capable of both digital signals from a low voltage range between see - for example - 10 V and + 30V on the one hand and Netzspan- On the other hand usable signals to pass on the lamp operating device, the interface must not be damaged even with a long-lasting concern of a mains voltage signal. This means that a line voltage-fixed reception branch and a transmission branch designed only for digital low-voltage signals must be provided.
• the object of the present invention is to simplify the circuitry known from WO 2006/010417 A1 in such a way that a cost saving is achieved.
• the requirements for the interface with regard to the strength against voltage peaks or a permanent concern of the mains voltage should be fulfilled.
• the present invention relates to a unidirectional interface which has an input terminal for selectively receiving an AC line voltage or a digital low-voltage bus voltage and a transmitting branch provided for transmitting digital low-voltage signals to a bus.
• a transmission branch is included a provided for selective temporary short-circuiting of the bus voltage controllable power switch, which is preferably the only mains voltage solid designed semiconductor switching element of the interface.
• the mains voltage-proof power switch is part of a switchable constant current source, which in the receive mode, for example, feeds an optocoupler on the primary side.
• the transmitting branch is supplied with a supply voltage via an external voltage supply of a switched-mode power supply galvanically isolated from the interface.
• the interface has means for potential-free extraction via the reception branch of recorded signals, in which e.g. can act on the primary side via the constant current source with a current of approximately constant current supplied optocouplers.
• An included in the interface circuit, not mains voltage solid designed controllable semiconductor switch is used to cause a through connection of the line voltage fixed designed controllable circuit breaker in a low-resistance state in the switching mode.
• This controllable semiconductor switch which is not designed to be voltage-proof can, for example, be a MOS field effect transistor connected on the drain side to the base of a bipolar transistor connected to a control electrode of the mains voltage-proof circuit breaker and required for operation of the constant current source.
• the bipolar transistor of the constant current source can be operated, for example, in an emitter circuit with current negative feedback, whose emitter electrode is connected to the primary side of the optical coupler integrated in the receiving branch.
• the switching behavior of the semiconductor switch in transmission mode is delayed by a suitable external circuit.
• a suitable external circuit for example, with the aid of an ohmic resistor (source resistor) connected between the source electrode of this semiconductor switch and the ground node of the interface circuit, by means of which the source voltage of the controllable semiconductor switch is raised relative to the ground potential of the interface, as well as with assistance a charge / discharge circuit connected to the gate electrode of this semiconductor switch and the ground node of the interface, consisting of the parallel connection of a charging capacitor (gate capacitance) and a discharge resistor, which according to the invention are provided for setting the edge slopes of digital low-voltage signals transmitted by the interface ,
• the present invention relates to a bidirectional interface which has an input terminal for selectively receiving a mains AC voltage signal, for example from a pushbutton or switch or a digital low-voltage bus voltage signal and for transmitting digital low-voltage signals by means of a transmission branch.
• a controllable circuit breaker serving for selectively short-circuiting the bus voltage is provided in the transmitting branch.
• the mains voltage-resistant power switch is part of a switchable constant current source, which keeps the current strength of a current flowing in a receiving mode through the receiving branch upon receipt of a signal at a stable, approximately constant level.
• the bidirectional interface according to the invention also has means for potential-free extraction via the receiving device.
• branched signals on a bus line of the bus which is, for example, a primary side via the constant current source powered by a current optocoupler.
• Fig. Ia shows a schematic diagram of a unidirectional
• Fig. Ib shows a schematic diagram of a bidirectional
• FIG. 2 a shows a circuit realization of the unidirectional interface according to the invention
• FIG. 2 b shows a circuit realization of the bidirectional interface according to the invention
• FIG. 2 a shows a circuit realization of the unidirectional interface according to the invention
• FIG. 2 b shows a circuit realization of the bidirectional interface according to the invention
• FIG. 2 a shows a circuit realization of the unidirectional interface according to the invention
• FIG. 2 b shows a circuit realization of the bidirectional interface according to the invention
• FIG. 3 shows a schematized view of FIG. 2b
• FIG. 1 a shows a schematic diagram of a unidirectional bus interface SU provided for receiving low-voltage digital signals U_suou t provided by the bus BS, which can be used, for example, for dimming a lighting device controlled via an operating device BG.
• bulbs may be, for example, a gas discharge lamp or an LED module.
• the operating device can, for example, an electric be a ballast with an ASIC or ⁇ C as a central control unit.
• the interface is used only for the transmission of control signals and the power supply of the lamps is provided separately via the operating device.
• the power of the lighting means may, for example, be dependent on signals received via the interface.
• the interface SU has an input terminal KK 'for selectively receiving an AC mains voltage U t i etz or the digital low-voltage bus voltage U Bus with a voltage level, for example of the order of the DALI / DSI interface standard for a given DC voltage level.
• the interface SU has an additional input terminal, via which a supply voltage Uy required for the voltage supply of the interface is provided, which is referred to as the "high" level of a control voltage potential for a circuit breaker Ti integrated in the transmitting branch SZ (see FIG
• the supply voltage Uy is a DC voltage with a low-voltage voltage level.
• the output signal receiving branch EZ via a potential separation stage PTS in the form of a digital low-voltage signal JJsuo ut potential free of a control device StE is transmitted, which converts the signal into a control signal for the operation of lighting means.
• Fig. Ib is a schematic diagram of a for receiving no mains voltage signals and for sending and receiving digital low-voltage signals U SBO ut or U 5 Bi n via an interface SB according to a second embodiment of the present invention.
• the bidirectional interface SB has, like the unidirectional interface SU described above with reference to FIG. 1a, an input terminal KK 'for selectively receiving a mains AC voltage signal U network or a digital low-voltage signal
• the bidirectional interface SB additionally has a transmission branch SZ, which is provided for sending low-voltage digital signals Us ⁇ in from a control device StE via the bus BS.
• the bidirectional interface SB depicted in FIG. 1b also has an additional input connection, via which a supply voltage U v required for the voltage supply of the interface is provided, which is referred to as a "high" level of a control voltage potential for an in the transmitting branch SZ integrated for selectively short-circuiting the bus voltage U bus required mains voltage fixed circuit-breakers T 1 (see. FIG. 2b) is used.
• a supply voltage U v required for the voltage supply of the interface is provided, which is referred to as a "high" level of a control voltage potential for an in the transmitting branch SZ integrated for selectively short-circuiting the bus voltage U bus required mains voltage fixed circuit-breakers T 1 (see. FIG. 2b) is used.
• the supply voltage Uy is again a DC voltage with a low-voltage level.
• FIG. 2 a shows a suitable circuit implementation of a unidirectional interface SU according to a first exemplary embodiment of the present invention, which is used to transmit digital data signals between the operating device BG required for operating at least one discharge lamp or at least one LED module and a bus BS is designed.
• the voltage U SB out lies between the terminal K 3 and the ground node GND of the interface circuit.
• terminals K, K ' is a full-wave rectifier AC / DC.
• the voltage supply of the interface SU can be carried out inductively, for example, via a secondary winding L 3 of a transformer integrated in a power supply circuit EKN of the interface, which is connected on the primary side to a switched-mode power supply serving for the voltage supply of the operating device BG and / or the control device StE.
• a secondary winding L 3 of a transformer integrated in a power supply circuit EKN of the interface which is connected on the primary side to a switched-mode power supply serving for the voltage supply of the operating device BG and / or the control device StE.
• the power supply from the interface SU is galvanically isolated.
• voltage is an AC voltage whose amplitude is given by the level of the supply voltage Uy. To provide the aforementioned power supply, this AC voltage is rectified and smoothed using a low-pass filter.
• An optocoupler 0K E which is located at the output end of a receiving branch EZ of the interface SU, is used for potential-free decoupling of the digital low-voltage signal output terminal KE.
• This transmission-side opto-coupler OK E is supplied with a constant current source KSQ, which can be connected via a controllable non-voltage-controllable semiconductor switch T 3 , with a constant current.
• the signal connected via this semiconductor switch T 3 controls a controllable circuit breaker Ti designed as a mains voltage-resistant switching element.
• a threshold value switch (eg, a Zener diode D Z u) connected to the optocoupler OK E on the primary side in series serves to set a voltage threshold value.
• FIG. 2 b shows a suitable circuit realization of a bidirectional interface SB according to a second exemplary embodiment of the present invention.
• the voltages U SB in and Us ⁇ out lie between the terminals K E and K 3 and the ground node GND of the interface circuit.
• the interface SB Via the input terminal KK ', the interface SB is connected to an AC mains voltage U network or to a digital signal-carrying bus line of the bus BS.
• the voltage supply of the interface SB can be carried out as in the interface SU described above with reference to FIG. 2a.
• the bit durations and edge steepnesses of the digital low-voltage signals transmitted or received by the inventive unidirectional (SU) or bidirectional interface (SB) lie.
• the slew rate is limited upwards, which means that on switching, turn-on and off delay times, respectively of a certain duration.
• the edges of the control signal are adjusted (flattened).
• the edge characteristics of the digital low-voltage signals transmitted or received by the interface SU or SB according to the invention can be adjusted by a suitable choice of parameter values, the on-off and off-delay times being controlled by the upstream filter and the counter-coupled switch.
• a constant current source KSQ 3 is driven (via an optocoupler) with pulsed signals from a control unit StE (for example, an operating device for lighting means), these signals being to be transmitted standard compliant with respect to their edge profile on a bus.
• This constant current source KSQ 3 is followed by a filter (low-pass filter, eg an LR or RC low-pass filter), which is designed to set the switching edge.
• This filtered signal activates a counter-clocked switch, which thus generates a trapezoidal control signal (with the desired standard-conforming edge steepnesses), which activates the switch T1.
• the counter-clocked switch generates the trapezoidal signal by smoothing the filter signal above and below a threshold value, in between the edge is maintained. But it can also be through the circuitry of the counter-clocked switch, the switching edges are additionally affected.

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• Electronic Switches (AREA)
• Circuit Arrangement For Electric Light Sources In General (AREA)

Applications Claiming Priority (2)

Publications (1)

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• 2007
  • 2007-02-27 DE DE102007009520.3A patent/DE102007009520B4/de active Active
• 2008
  • 2008-01-24 WO PCT/EP2008/000549 patent/WO2008104253A1/de active Application Filing
  • 2008-01-24 CN CN200880006219.5A patent/CN101622909B/zh not_active Expired - Fee Related
  • 2008-01-24 EP EP08707260A patent/EP2127492A1/de not_active Withdrawn

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