EP2918143A2 - Dispositif de commande et procédé de transmission de données par l'intermédiaire d'une ligne de charge - Google Patents

Dispositif de commande et procédé de transmission de données par l'intermédiaire d'une ligne de charge

Info

Publication number
EP2918143A2
EP2918143A2 EP13815670.8A EP13815670A EP2918143A2 EP 2918143 A2 EP2918143 A2 EP 2918143A2 EP 13815670 A EP13815670 A EP 13815670A EP 2918143 A2 EP2918143 A2 EP 2918143A2
Authority
EP
European Patent Office
Prior art keywords
switching means
control device
control
supply voltage
control circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP13815670.8A
Other languages
German (de)
English (en)
Inventor
Kai AIRBINGER
Simon Lecker
Roman Ploner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tridonic GmbH and Co KG
Original Assignee
Tridonic GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tridonic GmbH and Co KG filed Critical Tridonic GmbH and Co KG
Publication of EP2918143A2 publication Critical patent/EP2918143A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • 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
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • 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
    • 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
    • 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
    • H05B47/185—Controlling the light source by remote control via power line carrier transmission
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D25/00—Control of light, e.g. intensity, colour or phase
    • G05D25/02—Control of light, e.g. intensity, colour or phase characterised by the use of electric means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
    • H04B2203/5412—Methods of transmitting or receiving signals via power distribution lines by modofying wave form of the power source
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
    • H04B2203/542—Methods of transmitting or receiving signals via power distribution lines using zero crossing information

Definitions

  • the invention relates to a device and a method for controlling a control device for a lighting device.
  • the invention relates to methods and apparatuses in which a data packet can be transmitted via a load line via which a power supply takes place.
  • Dimmers can be used to control the brightness of lamps.
  • the brightness regulation in the dimmer can take place via a phase angle or phase section of the supply voltage of the luminaire.
  • the power of the lamp is reduced by a short-term interruption of the supply voltage is effected after or before the zero crossing of the supply voltage, so that depending on the duration of the interruption, the power of the lamp is reduced.
  • control devices can be used to transmit control signals to a control device for a light source.
  • An evaluation circuit provided in the operating device evaluates these control signals and adjusts the brightness accordingly.
  • Such a controller can also be used for color control.
  • Such a type of control is particularly suitable for lighting devices which are based on light sources in the form of gas discharge lamps or light-emitting diodes (LEDs).
  • a conduction path between an input exclusion and an output terminal of a control device which is connected between a supply source and a load, can be switched to a high-impedance state.
  • a control signal can be modulated onto a supply voltage of the load.
  • Circuit-based limitations of a power switch such as the integrated diode between the source and drain of a power MOSFET, can make efficient transfer of data bits across the load line difficult.
  • Devices and methods for data transmission via a load line are desirable, in which more than one data bit per full wave of the supply voltage is fundamentally possible during the transmission of a data packet.
  • the object of the invention is to provide a device and a method for data transmission via a load line, which is suitable for use for luminaires based on non-conventional bulbs and allows efficient data transmission via a load line.
  • a control device which is set up for data transmission via a load line.
  • the control device has an input terminal for coupling to a supply source, for example a mains voltage source, and an output terminal for coupling to the load power.
  • the control device comprises first switching means and second switching means connected in series between the input terminal and the output terminal.
  • the control device comprises a control circuit which is coupled to the first switching means and the second switching means and which is arranged to generate a control signal for controlling the first latch and / or the second latch for transmitting data bits.
  • a phase angle and / or a phase section for encoding a data bit can be generated both at a half-wave of the supply voltage with a positive sign and at a half-wave of the supply voltage with a negative sign.
  • Two data bits per full wave of the supply voltage can be transmitted.
  • a data packet can be transmitted with a sequence of half-waves of the supply voltage.
  • a manipulated variable for the operating device for example a target value for a brightness or color, can be coded by the phase intersections or phase sections of several consecutive half-waves.
  • the control device can be used in particular for the transmission of a data packet to an operating device for a lighting means.
  • the data packet may include a brightness value and / or color value.
  • the operating device for the lighting means may perform a brightness or color control or a brightness or color control depending on the control value transmitted in the data packet.
  • the brightness or color specified by the data packet may be maintained by the operating device after the transmission of the data packet has been completed. Unlike conventional phase dimming or phase gating dimming need after transmission of the data packet no further phase cuts or phase sections are generated, for example, to maintain a reduced brightness.
  • the first switching means and the second switching means may be arranged to be in an on state to conductively connect the input terminal to the output terminal when a signal is applied to the input terminal and the control circuit does not generate the control signal.
  • the control circuit must selectively generate the control signal only when phase gating and / or phase sections are generated to transmit a data packet or when another measure, such as zero crossing detection of the supply voltage, requires switching to the high impedance state.
  • the first switching means and the second switching means may be power switches.
  • the first switching means and the second switching means may be insulated gate power semiconductor devices such as MOSFETs.
  • the control circuit may be configured to affect a potential at a gate of the first switching means and at a gate of the second switching means only when the control device outputs the control signal.
  • the control circuit may cause a potential change at the gates of the first switching means and the second switching means with which the resistance of the series connection is increased. As a result, a supply voltage provided to the load can be briefly reduced to produce a phase angle or phase section.
  • the control device may include circuit components coupled to the input terminal for charging a gate of the first switching means and a gate of the second switching means.
  • the circuit components may form a charging circuit that charges the gate of the first switching means and the gate of the second switching means such that both switching means are in an on state and allow current to flow between the input terminal and the output terminal.
  • the control circuit may be configured to cause discharge of the gate of the first switching means and the gate of the second switching means by generating the control signal.
  • the control circuit may control a pull-down circuit via which a potential at the gates of the first switching means and the second switching means is changed.
  • the control circuit may be configured to supply the control signal Gate of a transistor connected in series with a pull-down resistor.
  • the control device may include at least one energy storage means arranged to charge a gate of the first switching means and a gate of the second switching means.
  • the energy storage device can be coupled via a first diode to the input terminal and via a second diode to the output terminal of the control device.
  • Such energy storage means which may comprise, for example, a capacitor or a plurality of capacitors, helps to rapidly switch the series connection of the first switching means and the second switching means back to an on state.
  • the control circuit may be arranged to control a further switching means which is connected between the energy storage means and the gates of the first switching means and the second switching means.
  • the control circuit may be configured to repeatedly switch the series connection of the first switching means and the second switching means for transmitting a sequence of data bits to a high-impedance state.
  • the control circuit may be configured to generate phase cuts and / or phase sections depending on data to be transmitted in order to transmit the sequence of data bits.
  • the control circuit may be configured to detect a phase position of a supply voltage of the supply source and to generate the control signal in predefined time windows before or after zero crossings of the supply voltage.
  • the control circuit may be arranged to initiate a procedure for detecting a zero crossing of the supply voltage of the supply source when a data packet is to be transmitted.
  • the control circuit may be configured to switch the series circuit of the first switching means and the second switching means to an off state and to monitor a voltage detected in the control device while the series circuit is switched to the off state to detect the zero crossing of the supply voltage ,
  • the control circuit may be configured to switch the series connection of the first switching means and the second switching means to the off state at a time at which a current flowing from the supply source via the control device to the load has a zero crossing.
  • the control circuit may be configured to switch the series connection of the first switching means and the second switching means per full wave of the supply voltage twice in the high-resistance state.
  • the control device can be set up to switch the series connection of the first switching means and the second switching means both in the case of a half-wave of the supply voltage with a positive sign and in the case of a half-wave of the supply voltage with a negative sign into the high-resistance state.
  • the control device may comprise an adjustment.
  • the control circuit may be configured to monitor an actuation of an adjustment element of the control device.
  • the adjusting element may comprise, for example, one or more buttons, a rotatable adjusting element or other actuatable elements.
  • the control circuit may selectively initiate a procedure for transmitting a data packet including switching the series connection of the first and second switching means to a high-resistance state when an operation of the adjustment element has been detected.
  • An internal supply voltage for the operation of the control circuit can be generated from the voltage dropping between the input terminal and the output terminal of the control device.
  • the control device can be equipped such that a supply of energy to the control circuit selectively takes place only when an actuation of the adjustment element is detected.
  • the control device may be a dimmer with which a brightness value can be set.
  • a method for data transmission from a control device to a load is specified.
  • phase cuts and / or phase sections for half-waves of a supply voltage are generated by the control device according to an embodiment in order to code a sequence of data bits.
  • the method can be used in particular for the transmission of a data packet to an operating device for a light source.
  • a lighting system comprises at least one operating device for a lighting device and a control device according to an embodiment.
  • the control device is coupled via a load line to the at least one operating device.
  • the at least one operating device may comprise an evaluation circuit which supplies a supply voltage for the presence of phase cuts and / or phase shifts. cut checked.
  • the evaluation circuit may be configured to check both half-waves of the supply voltage with a positive sign and half-waves of the supply voltage with a negative sign on the presence of a phase angle and / or phase portion.
  • the evaluation circuit can be set up to determine a dimming value and / or a color value from a sequence of phase sections and / or phase sections which are modulated onto a sequence of half-waves of the supply voltage.
  • the evaluation circuit can be set up to read out in each case one data bit of a data packet per half-wave of a sequence of half-waves.
  • the evaluation circuit of the operating device can be set up to make a brightness change and / or color change depending on the sequence of phase cuts and / or phase sections after the data packet has been transmitted.
  • the at least one operating device may comprise at least one LED converter.
  • Fig. 1 shows a lighting system with a control device according to an embodiment of the invention.
  • FIG. 2 is a flowchart of a method according to an embodiment.
  • FIG. 3 shows a time-dependent profile of a supply voltage when a control device according to an exemplary embodiment generates phase sections for transmitting a data packet.
  • 4 is a circuit diagram of a control apparatus according to an embodiment.
  • Fig. 5 shows circuit components of a control apparatus according to an embodiment.
  • Fig. 6 is a circuit diagram of a control device according to an embodiment.
  • Fig. 7 shows circuit components of a control device according to an embodiment for explaining the operation of the control circuit.
  • 8 is a circuit diagram of a control apparatus according to an embodiment for explaining a zero-crossing detection of a supply voltage.
  • 9 is a flowchart of a method according to an embodiment.
  • Fig. 1 illustrates a lighting system with a control device 00 according to an embodiment of the invention.
  • the lighting system comprises the control device 100, a supply source 10, for example a mains voltage source, and a luminaire 50 or several luminaires 50.
  • the luminaire 50 is controlled by the control device 100.
  • the control device 100 transmits a data packet via a load line.
  • the supply voltage is influenced in a coordinated manner by the control device 100 with zero crossings of the supply voltage, for example for generating phase slices or phase sections of the supply voltage.
  • the control device 100 serves to control the brightness of the lighting device 50, ie, is designed as a dimmer.
  • the control device 100 can also be used for alternative or additional control operations, for example for color control.
  • the luminaire 50 comprises an operating device 52 and a luminous means 54.
  • the luminous means 54 may comprise one or more light-emitting diodes (LEDs). Accordingly, the operating device 52 may be designed as an LED converter. It goes without saying that the lighting means 54 can be implemented in various ways, for example by one or more inorganic LEDs, organic LEDs, gas discharge lamps or other light sources. In addition, a combination of the aforementioned types of lamps can be used. By way of the operating device 52, a suitable operation of the respective luminous means 54 takes place.
  • the operating device 52 may, for example, comprise a power supply which generates a suitable voltage and / or a suitable current from a supply voltage supplied to the luminaire for operating the luminous means 54.
  • the driver 52 is a non-resistive load.
  • a noise suppression capacitor 56 connected to the inputs of the driver 52 may cause a phase shift between current and supply voltage.
  • An outgoing from the mains voltage source 10 mains voltage conductor 20 is connected to the lamp 50.
  • Another mains voltage conductor 30 emanating from the mains voltage source 10 is connected to the control device 100.
  • the mains voltage conductor 20 may be a neutral conductor, while the mains voltage conductor 30 is a phase conductor.
  • the control device 100 is connected to the light 50 via a load line 40.
  • the luminaire 50 is coupled to the mains voltage conductor 20 and the load line 40 and receives its supply voltage via the load line 40 and the mains voltage conductor 20.
  • the supply voltage of the operating device is thus supplied to the latter on the one hand via the mains voltage conductor 20 and on the other hand via the mains voltage conductor 30, the load line 40 and the control device 100 coupled therebetween.
  • the control device 100 is connected directly to one of the mains voltage conductors 20, 30 directly. A connection of the control device 100 to the neutral conductor is not required, which reduces the installation effort.
  • the control device 100 comprises a control circuit 110 and an adjustment element 105.
  • the control circuit 110 has the task of selectively influencing a supply voltage for the light 50 such that a plurality of data bits of a data packet are transmitted via the load line 40. For example, half-waves with phase cuts and / or phase sections can be generated for this purpose.
  • the control circuit 1 10 may for this purpose comprise a first switching means 121 and a second switching means 122 in a series circuit.
  • the first switching means 121 and the second switching means 122 may be configured as power switches, for example as MOSFETs or other power semiconductor components.
  • the switching means 121, 122 may be provided so that a source terminal of the first switching means 121 is coupled to a source terminal of the second switching means 122.
  • the control circuit 110 can control the series connection of the first switching means 121 and the second switching means 122 by generating a control signal ctrl such that at least one of the two switching means 121, 122 is switched to a high-resistance state. A current flow through the series circuit can be so strongly suppressed or substantially eliminated when the control circuit 1 10 generates the control signal ctrl.
  • the control circuit 110 may control the first switching means 121 and the second switching means 122 in order to supply a supply voltage provided to the luminaire 50 during an operation. nes predetermined time window of a half-period of the supply voltage to reduce.
  • the control circuit 110 can switch one of the switching means 121, 122 to a high-impedance state in order to generate a phase angle and / or phase section of a half-wave of the supply voltage with a positive sign.
  • the control circuit 110 can supply the other of the switching means 121, 122 in FIG switch a high-impedance state to produce a phase angle and / or phase portion of a half-wave of the supply voltage with a negative sign.
  • control circuit 110 may perform a method of zero crossing detection of the supply voltage.
  • control circuit 110 can likewise control the switching means 121, 122 such that the series connection of the first switching means 121 and the second switching means 122 has a high resistance and a current flow between an input terminal 101 and an output terminal 102 of the control device 100 for a Time interval interrupts.
  • the control circuit 10 can modulate a plurality of half-wave phase cuts and / or phase sections in order to transmit a data packet via the load line 40.
  • the corresponding data packet with which the control device 100 controls the light 50 can be influenced by actuation of the insertion element 105.
  • the setting element 105 may, for example, comprise a push-button.
  • a sequence of half-waves with phase angle and / or phase section can be generated in order to transmit a data packet which causes the luminaire 50 to change brightness.
  • the brightness can be increased by one level until a maximum brightness is reached, and then by operating the setting element 105, the brightness can again be reduced by one level until a minimum brightness is reached.
  • the brightness can be automatically changed periodically and the brightness set when the adjustment member 105 is released can be maintained.
  • the adjustment element 105 may also include, for example, a potentiometer coupled to a turret over which the desired brightness is adjustable.
  • the control device 100 can detect the position of the potentiometer upon actuation of the setting element 105 and generate by the control circuit 110 a data packet for setting the corresponding brightness and transmit it to the light 50.
  • FIG. 2 is a flowchart of a method 200 that may be performed automatically by the controller 100. In the method, it is monitored in step 201 whether the setting element 105 of the control device 100 is actuated.
  • step 202 If an actuation of the setting element 105 is detected, a procedure is carried out in step 202, with which a time is determined at which the supply voltage has a zero crossing. As a result, a phase position of the supply voltage can be determined.
  • the determination of the zero crossing of the supply voltage carried out in step 202 enables a reliable transmission of a data packet even if a non-ohmic load is connected to the load line.
  • the supply voltage is selectively affected to transmit a data packet. For example, phase cuts and / or phase sections can be generated at predetermined time intervals after or before a zero crossing of the supply voltage.
  • the data packet may include a value coded in a bit sequence, for example a dimming value and / or a color value. The data packet can be generated as a function of a dimming value or color value set with the setting element 105.
  • an actuation of the setting element 105 at step 201 triggers the determination of the phase position of the supply voltage and the transmission of a data packet
  • the execution of the method can also be triggered by other events. This may be the case, for example, with automatic dimming or automatic color control according to a time schedule.
  • Fig. 3 illustrates how the data transfer control device 100 generates phase sections.
  • the control circuit 1 10 switches in each case at least one of the first switching means 121 and the second switching means 122 coordinated in time with the zero crossings of the supply voltage in an off state.
  • a supply voltage 230 provided to the operating device 52 of the luminaire has a plurality of half-waves 231-238. Several of the half-waves have phase sections.
  • the phase sections are generated by the control device 100 such that a logical "0" or a logic "1" can be coded, for example, by the presence or absence of a phase section in the case of a half-wave.
  • a first half cycle 231 of the series of half waves may have a phase section 241.
  • a start bit of a data packet can be coded.
  • At least one half cycle 238 of the series of half waves may include a phase section 248 to indicate the end of the data packet.
  • Phase segments are selectively generated to transmit a dimming value, a color value or another bit sequence.
  • phase values 242, 243, 244, and 246 of half-waves 232, 233, 234, and 236 may each encode a bit value, eg, a logic "1.” By omitting phase portions 245 and 247 at the other half-waves 235 and 237 In each case, another bit value, for example a logical "0", can be coded.
  • Other embodiments are possible.
  • phase sections or phase cuts can be generated both for half-waves with a positive sign and for half-waves with a negative sign. This allows the transmission of two bits of data per full wave of the supply voltage while the data packet is being transmitted. In further embodiments, less than two bits of data per full wave can be transmitted. The transmission of the data packet takes place in a period of time 239.
  • a control of the light output of the Leuchtmitteis according to the transmitted command in the data packet is carried out by the operating device of the light source after the end of the period 239, ie after transmission of the data packet.
  • the operating device 50 has an evaluation circuit which monitors the received supply voltage for the presence of phase gates and / or phase sections.
  • the evaluation circuit can detect the start of a data packet based on at least one phase control or phase section.
  • the evaluation circuit can determine the control command transmitted with the data packet, for example a target value of a manipulated variable.
  • the operating device sets the control command, for example by approaching the target value of the manipulated variable with a cross-fading time. If an instruction for incrementing or decrementing the manipulated variable is transmitted with the data packet, which is coded in a sequence of phase intersections and / or phase sections, the operating device can also perform a corresponding cross-fading process.
  • An implementation of the command contained in the data packet by the operating device 52 can begin after the data packet has been completely received by the operating device 52.
  • a data packet with a target value for a manipulated variable only needs to be transmitted when the target value changes.
  • the control device 10 does not have to continue phase cuts and / or phase sections modulate on the supply voltage, so that the bulb is operated, for example, with reduced brightness.
  • the control circuit 110 may control the first switching means 121 and the second switching means 122 such that, independently of the respective phase position of the supply voltage, one of the switching means 121, 122 is in a high-resistance state, while the control circuit 110 generates a corresponding control signal ctrl in order to switch the conduction path between the input terminal 101 and the output terminal 02 to high impedance.
  • the series connection of the first and second switching means 121, 122 may include two normal-blocking n-channel MOSFETs coupled together at their source terminals.
  • the control circuit 10 may cause the gates of the MOSFETs to discharge in order to switch the series connection into a high-resistance state independently of the direction of current flow through the MOSFETs.
  • the control device 100 may comprise a series circuit having a first switching means and a second switching means, which is connected between the input terminal 101 and the output terminal 102 of the control device.
  • the first switching means and the second switching means may each be a power MOSFET or comprise a power MOSFET.
  • the power MOSFETs may be coupled together at their source terminals or at their drain terminals.
  • Such embodiments allow in a particularly simple manner, by two circuit breakers in a series circuit phase cuts or phase sections both for half-waves of the supply voltage with a positive sign and for half-waves of the supply voltage with a negative sign to produce.
  • Embodiments of such control devices will be described in detail with reference to FIGS. 4 to 7. In this case, similar reference numerals designate similar elements or assemblies.
  • the control apparatus 100 includes a first switching means 121 and a second switching means 122.
  • the first switching means 121 and the second switching means 122 are connected in series between the input terminal 101 and the output terminal 102 of the control apparatus 100.
  • the control device 00 comprises a control circuit 140, which is set up to switch at least one of the two switching means 121, 122 into an off state.
  • the first switching means 121 and the second switching means 122 may each be configured as a power MOSFET. Other power switches, particularly insulated gate power semiconductor devices, may be used.
  • the first switching means 121 and the second switching means 122 may in this case be connected such that the forward directions of the principally integrated diodes of the power MOSFETs for the two switching means 121, 122 are opposite to each other.
  • the first switching means 121 and the second switching means 122 may each be formed as an n-channel MOSFET.
  • the source terminals of the two n-channel MOSFETs may be coupled together.
  • the first switching means 121 and the second switching means 122 may be in an on state when a signal is received from the supply source at the input terminal 101 and a control circuit 140 is not discharging the gates of the power MOSFETs.
  • a charging circuit 130 may be used to charge the gates of the first switching means 121 and the second switching means 122.
  • the charging circuit 130 may be coupled to the input terminal 101 and the output terminal 02.
  • the charging circuit 130 may operate in the manner of a pull-up circuit with which the potential at the gates of the power MOSFETs is raised to a certain value.
  • the charging circuit 110 may be configured to charge the gates of the first switching means 121 and the second switching means 122 to switch both switching means 121, 122 to an on state.
  • the charging circuit 130 may include a capacitor or other energy storage means to relatively quickly recharge the gates of the first switching means 121 and the second switching means 122. In this way, phase cuts or phase sections with relatively steep voltage edges can be generated.
  • the control circuit 140 may be coupled to the gates of the first switching means 121 and the second switching means 122 to control discharge of the gates. Thereby, the series connection of first switching means 121 and second switching means 122 can be selectively switched to a high-resistance state. As described with reference to FIGS. 1 to 3, the control circuit 140 may switch the series connection of the first switching means 121 and the second switching means 122 to an off-state in time windows shorter than a half-period of the supply voltage in order to detect phase intersections and / or to generate phase sections. Moreover, the control circuit 140 may switch the series connection of the first switching means 121 and the second switching means 122 to an off state to perform a procedure for determining a zero crossing of the supply voltage.
  • control circuit 140 a discharge of the gates of the first switching means 121 and the second Switch means 122 to turn off a flow of current through the control device, as will be described in more detail with reference to Fig. 8 to Fig. 10.
  • control circuit 140 may comprise at least one logic circuit which may be designed as an integrated circuit.
  • the control circuit 140 may include at least one microprocessor or controller to perform said functions.
  • An internal supply voltage for the control circuit 140 may be generated from the voltage dropped in the control device.
  • a supply circuit 150 for supplying power to the control circuit 140 may be provided.
  • the supply circuit 150 may include a plurality of Zener diodes to provide the internal supply voltage to the control circuit 140.
  • the control device 100 may also be configured such that a bridging contact 106 of the adjusting element 105 bridges the input terminal 101 and the output terminal 102 as long as the adjusting element 105 is not actuated. In this way, it can be achieved that a voltage supply of the control circuit 140 takes place only when the adjustment element 105 is actuated, so that a power consumption of the control device 100 is reduced.
  • the operation of the control device 100 in generating phase slices and / or phase sections for transmitting a sequence of data bits corresponds to the operation described with reference to FIGS. 1 to 3.
  • FIG. 5 shows an embodiment of circuit components which can be used in control devices according to exemplary embodiments in order to switch the first switching means 121 and the second switching means 122 to an on state.
  • the illustrated circuit components may be used as the charging circuit 130 in the control device 100 of FIG. 4.
  • the gates are supplied with charge via a node 139.
  • a diode 133 is connected to the input terminal 101.
  • Another diode 134 is connected to the output terminal. Via the diode 133 or the diode 134, the gates of the first switching means 121 and the second switching means 122 can be charged via a resistor 132.
  • the charging circuit may include a capacitor 131, which is charged via the diode 133 and the further diode 134.
  • the capacitor 31 stores charge for rapidly charging the gates of the first switching means 121 and the second switching means 122, for example, at the end of a phase cut or a phase portion.
  • Another terminal of the capacitor 131 may be connected to a ground potential PO.
  • 6 is a circuit diagram of a control device 100 according to an embodiment.
  • the control device 100 comprises a first switching means 121, a second switching means 122 and a control circuit, which may be designed as described with reference to FIG. 4.
  • Fig. 7 shows an embodiment of circuit components that can be used in control devices according to embodiments, to switch the series connection of first switching means 121 and second switching means 122 in an off state. Such a configuration is also used in the control device 100 of FIG. 6.
  • the control circuit is arranged to increase a resistance of the series connection of the first switching means 121 and the second switching means 122, for example by switching the series circuit into an off state.
  • the resistance of the line path through the series connection of first switching means 121 and second switching means 122 is thereby increased.
  • the control circuit can establish a connection between the gates and a ground, for example by driving a switch 142, which can be designed as a transistor 142.
  • the control circuit for discharging the gates may switch another switch 136, which may be configured as another transistor, between the capacitor 131 and the gates of the first switching means 121 and the second switching means 122 in a blocking state to reload the gates temporarily to prevent.
  • the power supply to the control circuit may be through a supply circuit comprising at least two zener diodes.
  • a zener diode 151 and a power MOSFET 153 and a further zener diode 155 and another power MOSFET 154 are provided to power the control circuit.
  • Other embodiments are possible to generate an internal supply voltage for the control circuit.
  • a voltage drop across the second switching means 122 can be measured to determine the zero crossing of the supply voltage. Such a measurement may be performed while the series connection of first switching means 121 and second switching means 122 is in a high resistance state.
  • control circuit can detect, for example, the voltage drop across the second switching means 122 while controlling the series connection of the first switching means 121 and the second switching means 122 so that the resistance of the series connection is increased to a reference Zero crossing of the thus detected voltage to determine a zero crossing of the supply voltage.
  • the control circuit with which the resistance of the series connection of the first switching means 121 and the second switching means 122 can be increased comprises, in the illustrated embodiment, an integrated circuit 141, a transistor 142 and a resistor 143.
  • the integrated circuit 141 can act as a processor, microcontroller , Controller or other integrated circuit.
  • the control device 100 may be configured such that the gates of the switching means 121, 122 are charged when a signal of the supply source is present at the input terminal 101.
  • the integrated circuit 141 may generate and output a control signal ctrl to turn on the transistor 142.
  • Resistor 144 acts as a pulldown resistor.
  • the potential at the gates of the first switching means 121 and the second switching means 122 is drawn in the direction of a ground potential PO.
  • the gates of the first switching means 121 and the second switching means 122 can discharge via a diode 145, the resistor 144 and the transistor 142.
  • the control circuit 110 can prevent reloading of the gates of the first switching means 121 and the second switching means 122 while the control signal ctrl is being output.
  • a further transistor 136 which is connected between the capacitor 131 and the gates of the first switching means 121 and the second switching means 122, pass into a blocking state.
  • a potential at the gate of the further transistor 136 is influenced via a voltage divider with the resistor 144 and a further resistor 143 so that the further transistor 136 blocks, while the control signal ctrl the transistor 142 turns on.
  • the transistor 142 blocks. Charge for reloading the gates of the first switching means 121 and the second switching means 122 is possible the capacitor 131 may be provided.
  • the gates of the first switching means 121 and the second switching means 122 may be charged via the further transistor 136 and a resistor 137 when a signal is provided at the input terminal 101 from the supply source and the integrated circuit 141 does not control the transistor 42 so that the potential at the gates of the first switching means 121 and the second switching means 122 is influenced to increase the resistance of the series connection.
  • a series circuit of resistors 11 1, 1 12 may be connected between the input terminal and the output terminal to perform a voltage measurement. As will be described in more detail with reference to FIGS. 8 to 10, such a zero crossing of the supply voltage can be detected while the series connection of the first switching means 121 and the second switching means 122 is switched to an off state.
  • the control device 100 comprises a first switching means 121, a second switching means 122 and a control circuit, which may be designed as described with reference to FIG. 7.
  • the control circuit comprises an integrated circuit 141.
  • the control device comprises a charging circuit for charging the gates of the first switching means 121 and the second switching means 122.
  • the charging circuit comprises a capacitor 131 and diodes 133, 134. The capacitor 131 is charged via the diodes 133, 134 when the supply source supplies a supply voltage.
  • the charging circuit further includes a transistor 136 connected to the gates of the first switching means 121 and the second switching means 122.
  • the charging circuit holds the series connection of first switching means 121 and second switching means 122 in an on state, i. in a low-resistance state when a signal is present at the input terminal 101 and the control circuit does not discharge the gates of the first switching means 121 and the second switching means 122.
  • the integrated circuit 141 controls a transistor 142.
  • An output signal of the integrated circuit 141 controls a potential at the gate of the transistor 142.
  • the gate voltage of the transistor 136 is pulled toward ground potential via a voltage divider with resistors 143 and 144.
  • the transistor 136 becomes blocking. In this way, reloading of the gates of the first switching means 121 and the second switching means 122 by the capacitor 131 is suppressed.
  • the gates of the first switching means 121 and of the second switching means 122 discharge, for example via a diode 45 and via the transistor 142.
  • the integrated circuit 141 In order to terminate the selective switching of the series connection of first switching means 121 and second switching means 122 in the off state, the integrated circuit 141 outputs no signal to the gate electrode of the transistor 142 more.
  • the transistor 142 blocks.
  • the gates of the first switching means 121 and the second switching means 122 are charged by the capacitor 131 via the transistor 136. Accordingly, the series connection of first switching means 121 and second switching means 122 returns to an on state in which it has a lower resistance. By using the capacitor 131, a quick return to the on state can be achieved.
  • the conduction path between the input connection and the output connection is switched to high impedance in certain time windows.
  • the respective time slots are in a predetermined temporal relationship to zero crossings of the supply voltage.
  • the control device 100 may be configured to automatically determine the time at which a zero crossing of the supply voltage occurs. If the control device 00 also has a connection for the neutral conductor 20, a zero crossing can be determined directly by measuring the voltage between the input connection 101 and the neutral conductor 20.
  • control device 100 may perform a procedure for determining the zero crossing of the supply voltage before a data packet is transmitted via the load line 40.
  • An implementation of such a procedure will be described in detail with reference to FIGS. 8 to 10.
  • the control device 100 may be configured such that a conduction path between the input terminal 101 and the output terminal 102 of the control device 100 is specifically switched to a high-resistance state for a time interval. A current flow from the input terminal 101 to the lamp 50 via the load line 40 can be interrupted or greatly reduced. During this time interval, a voltage drop in the control device 100 is monitored. A zero crossing of this voltage corresponds to a zero crossing of the supply voltage provided by the supply source.
  • Fig. 8 is a circuit diagram of the control apparatus 100 according to an embodiment for explaining detection of the zero crossing.
  • a series connection of a first switching means 121 and a second switching means 122 is connected between the input terminal 01 and the output terminal 102 of the control device 100.
  • the control circuit 10 controls the first switching means 121 and the second switching means 122 in such a way that at least one of the switching means 121, 122 is in a high-resistance state.
  • the conduction path between the input terminal 101 and the output terminal 102 is switched to a high-resistance state. If the operating device of the luminaire, which is supplied with energy via the output terminal 02, has an interference suppression capacitor, it can now discharge.
  • the suppression capacitor of the operating device can be discharged in particular via the lighting means.
  • the control circuit 110 may be configured to detect a zero crossing of a voltage in the control device 100 while the series connection of the first switching means 121 and the second switching means 122 is switched to the off state. For this purpose, for example, at a measuring point 1 13, the voltage can be monitored, which drops at a Zener diode 1 12 or at a resistor 1 12 in the control device 100.
  • the zener diode or resistor 1 2 may be connected in series with a resistor 11 1 between the input terminal 101 and the output terminal 102.
  • the voltage measurement can also be done on the design-integrated diode of one of the switching means. As the suppression capacitor of the operating device discharges, the detected voltage approaches the supply voltage.
  • a zero crossing of the voltage detected in the control device 100 while the series circuit of the first switching means 121 and the second switching means 122 is switched to the off state corresponds to a zero crossing of the supply voltage.
  • the control circuit 1 10 ends the control process, with which the series connection of the first switching means 121 and the second switching means 122 has been switched to the off state.
  • both MOSFETs may return to a conducting state.
  • the resistance of the conduction path between the input terminal 101 and the output terminal 102 is reduced so as to allow a current flow between the supply source 10 and the lamp 50 via the control device 100.
  • the control circuit 110 can switch into the off state in a predetermined time window in order to generate phase cuts or phase sections of half-waves of the supply voltage and thus transmit a sequence of data bits.
  • Controlling the series connection of first switching means 121 and second switching means 122 such that it is switched to a high-resistance state for determining the zero crossing of the supply voltage can be coordinated with the current flowing via the load line 40.
  • the control circuit 1 10 the power monitor.
  • the control circuit 110 can switch the series connection of the first switching means 121 and the second switching means 122 to the off state at a zero crossing of the current and then determine the instant at which the voltage detected in the control device has a first zero crossing.
  • the detection of the zero crossing of the supply voltage can be carried out in a time interval which is determined depending on a zero crossing of the current.
  • the detection of the zero crossing of the supply voltage can be carried out in particular in a time interval whose beginning is at a zero crossing of the current flowing through the control device to the operating device of the lighting means.
  • FIG. 9 is a flowchart of a method 210 for data transmission over a load line.
  • the method 210 may be performed automatically by the controller 100.
  • an event may be monitored that triggers the execution of the data transfer procedure. For example, as explained with reference to FIG. 8, the operation of a setting member may be monitored.
  • Once an event is detected that triggers the transmission of a data packet over the load line it is monitored at step 211 when the current flowing over the load line 40 has a zero crossing.
  • a zero crossing of the current triggers a control in step 212 such that the series connection of the first switching means 121 and the second switching means 122 is switched to an off state.
  • a MOSFET can be switched to a high-resistance state for this purpose.
  • step 213 it is monitored when a voltage drop in the controller 100 has a zero crossing.
  • a voltage drop across the zener diode 12 or resistor 12 can be detected and the zero crossing of this voltage can be detected, as described with reference to FIG. 8.
  • the series connection of the first switching means 121 and the second switching means 122 remains switched to the off state until the zero crossing of the voltage detected in the control device 100 is detected. This time corresponds to a zero crossing of the supply voltage.
  • the transmission of a plurality of data bits takes place in step 214.
  • phase cuts and / or phase sections of half-waves of the supply voltage can be generated.
  • the time windows in which the switching means 106 are respectively switched to the off state to generate a phase angle and / or phase portion are selected to be in a predetermined time relationship depending on the zero crossing of the supply voltage detected at step 213 to zero crossings of the supply supply voltage.
  • the data packet may comprise, for example, ten bits of data or more than ten bits of data. During the transmission of a data packet, for example, in five full waves of the supply voltage, no re-determination of the zero crossing of the supply voltage must be made.
  • the procedure for determining the phase position of the supply voltage can be repeated, for example, when a new data packet is transmitted or when the time elapsed since the last determination of the zero crossing of the supply voltage exceeds a threshold value.
  • 10 is a diagram for further explaining the operation of the control device according to embodiments in determining the zero crossing of the supply voltage. After an event that triggers the procedure for determining the zero crossing of the supply voltage, a zero crossing 222 of a current 221 is detected, which flows via the load line 40. At the zero crossing 222 of the current 221, the control circuit 110 controls the series connection of the first switching means 121 and the second switching means 122 to become high-resistance.
  • the conduction path between the input terminal 101 and the output terminal 102 of the control device 100 thereby becomes high-impedance.
  • a time interval 226 in which the series connection of the first switching means 121 and the second switching means 122 remains switched to the off state, the first zero crossing of a voltage 223 is detected.
  • the suppression capacitor of the operating device of the lighting device discharges.
  • the voltage detected in the control device 223, which initially has a phase shift to the supply voltage approaches with the discharge of the suppression capacitor of the operating device of the supply voltage.
  • the supply voltage also has a zero crossing.
  • the time 225 thus determined may be used to generate phase cuts or phase sections for a sequence of half-waves of the supply voltage.
  • the switching means may be switched back to the on state at time 225.
  • the operating device may include a charging capacitor.
  • the charging capacitor may be designed so that it can maintain operation of the lamp at 100% brightness during a discharge time of the suppression capacitor of the operating device.
  • control devices and methods of embodiments have been described in detail with reference to the figures, modifications may be made in further embodiments.
  • controllable circuit breakers instead of power MOSFETs other controllable circuit breakers are used.
  • n-channel MOSFETs which are switched by discharging the gates in a high-impedance state, also p-channel MOSFETs can be used. Accordingly, the control circuit would charge the gates of the switching means to increase the resistance of the line path between the input terminal and the output terminal.
  • control device may comprise two switching means in a series circuit, which are designed to generate a phase angle both at half-waves of the supply voltage with positive sign as well as half-waves with a negative sign
  • the data transmission in further exemplary embodiments may be such that a phase angle or phase section is generated only for half-waves with a specific sign.
  • Bipolar transistors described with reference to some embodiments may also be replaced by other controllable switching means.
  • control devices and methods of embodiments may be used to transmit dimming commands and / or color control, target values for other manipulated variables may also be transmitted.
  • the data transmission can take place after the light source already emits light. The data transmission can take place via the load line without the light source extinguishing.
  • a change in the brightness, color or other manipulated variable can be performed by the operating device after the data packet has been completely transmitted and while no more phase cuts and / or phase sections must be modulated to the supply voltage.
  • the supply voltage may also be otherwise affected to transmit a sequence of data bits having a sequence of halfwaves of the supply voltage.
  • the supply voltage provided by the control device to the operating device can also be lowered substantially to zero during a time window, which is neither at the beginning nor at the end of a half-wave of the supply voltage.
  • a bridging contact of the adjustment member may bypass the input port and the output port of the control device as long as the adjustment member is not actuated. In this way it can be achieved that a voltage supply of the control circuit takes place only upon actuation of the adjusting element, so that a power consumption of the control device can be reduced.
  • Devices and methods according to exemplary embodiments may be used in particular for controlling luminaires which comprise LEDs, without being limited thereto.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Communication Control (AREA)
  • Selective Calling Equipment (AREA)

Abstract

La transmission de données d'un dispositif de commande (100) à une charge (52) se produit par l'intermédiaire d'une ligne de charge (40). Le dispositif de commande (100) comporte un premier moyen de commutation (121) et un second moyen de commutation (122) qui sont montés en série entre une borne d'entrée (101) et une borne de sortie (102) du dispositif de commande (100). Un circuit de commande (110) est couplé au premier moyen de commutation (121) et au second moyen de commutation (122), et conçu pour produire un signal de commande (ctrl) destiné à la commande du premier moyen de commutation (121) et/ou du second moyen de commutation (122) en vue de la transmission de bits de données.
EP13815670.8A 2012-11-06 2013-11-06 Dispositif de commande et procédé de transmission de données par l'intermédiaire d'une ligne de charge Withdrawn EP2918143A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATGM432/2012U AT14097U1 (de) 2012-11-06 2012-11-06 Steuervorrichtung und Verfahren zur Datenübertragung über eine Lastleitung
PCT/AT2013/000184 WO2014071428A2 (fr) 2012-11-06 2013-11-06 Dispositif de commande et procédé de transmission de données par l'intermédiaire d'une ligne de charge

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EP2918143A2 true EP2918143A2 (fr) 2015-09-16

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EP13815670.8A Withdrawn EP2918143A2 (fr) 2012-11-06 2013-11-06 Dispositif de commande et procédé de transmission de données par l'intermédiaire d'une ligne de charge

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US (1) US20150289348A1 (fr)
EP (1) EP2918143A2 (fr)
CN (1) CN104904317A (fr)
AT (1) AT14097U1 (fr)
WO (1) WO2014071428A2 (fr)

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JP6680027B2 (ja) * 2016-03-23 2020-04-15 アイシン精機株式会社 電力制御装置
WO2018166592A1 (fr) * 2017-03-15 2018-09-20 Omexom Ga Süd Gmbh Kit de rattrapage avec module de commutation pour poteau de lumière, dispositif d'alimentation de poteau de lumière, poteau de lumière, éclairage de rue et procédé de fourniture d'une communication de données

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Publication number Publication date
US20150289348A1 (en) 2015-10-08
WO2014071428A3 (fr) 2014-07-03
WO2014071428A2 (fr) 2014-05-15
CN104904317A (zh) 2015-09-09
AT14097U1 (de) 2015-04-15

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