EP2690927B1 - Commutateur de commande pour un agencement de moyen d'éclairage avec un sectionneur pouvant être commandé - Google Patents

Commutateur de commande pour un agencement de moyen d'éclairage avec un sectionneur pouvant être commandé Download PDF

Info

Publication number
EP2690927B1
EP2690927B1 EP12178287.4A EP12178287A EP2690927B1 EP 2690927 B1 EP2690927 B1 EP 2690927B1 EP 12178287 A EP12178287 A EP 12178287A EP 2690927 B1 EP2690927 B1 EP 2690927B1
Authority
EP
European Patent Office
Prior art keywords
switch
drive circuit
circuit according
transducer
converter
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.)
Active
Application number
EP12178287.4A
Other languages
German (de)
English (en)
Other versions
EP2690927A1 (fr
Inventor
Elmar Hinrichs
Jens Lander
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.)
Vossloh Schwabe Deutschland GmbH
Vossloh Schwabe GmbH
Original Assignee
Vossloh Schwabe Deutschland GmbH
Vossloh Schwabe GmbH
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 Vossloh Schwabe Deutschland GmbH, Vossloh Schwabe GmbH filed Critical Vossloh Schwabe Deutschland GmbH
Priority to EP12178287.4A priority Critical patent/EP2690927B1/fr
Publication of EP2690927A1 publication Critical patent/EP2690927A1/fr
Application granted granted Critical
Publication of EP2690927B1 publication Critical patent/EP2690927B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • 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]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/375—Switched mode power supply [SMPS] using buck topology

Definitions

  • the invention relates to a drive circuit for a lamp arrangement with a converter to which the lamp arrangement is connected.
  • the converter serves to supply electrical energy to the lamp arrangement connected thereto from a reference voltage, for example a DC voltage or a rectified AC voltage.
  • the converter has a converter switch, which is controlled via a converter control signal.
  • the converter control signal can be pulse-width modulated, for example.
  • the luminous means arrangement has at least one luminous means and in particular at least one light-emitting diode. Several light-emitting diodes of the lighting arrangement can be connected in series and / or parallel to one another.
  • the drive circuit also has a measuring circuit which is arranged in series with the lamp arrangement.
  • a measuring circuit which is arranged in series with the lamp arrangement.
  • Such a drive circuit is for example off WO 2010/049 074 A1 known.
  • the problem with such drive circuits is that, when the converter control signal is switched off, when the converter switch is in its blocking or opened state, a current can continue to flow through the lighting arrangement and the measuring circuit. This is undesirable because it also opens when or blocking transducer switch lighting the lamp assembly is caused. If the lamp arrangement is to be switched off via the converter control signal controlling the converter switch, the current which nevertheless flows through the lamp arrangement and the measuring circuit can cause the lighting arrangement to illuminate and a complete switch-off is prevented.
  • WO 2010/049 074 A1 provided to switch a further controlled switch parallel to the lamp arrangement, which bridges the lamp arrangement in its conductive or closed state. If lighting of the lamp arrangement is to be avoided, the second controlled switch is closed and, because of its low resistance, prevents a current flow through the lighting arrangement.
  • US 2009/0195184 A1 describes a drive circuit with a converter, the converter switch is connected between a voltage source and the lamp assembly. In series with the lamp arrangement, a dimmer switch is arranged, via which the brightness of the lamp arrangement can be adjusted. The current through the lamp arrangement is measured at a resistor arranged in series with the dimmer switch.
  • a reference voltage is applied to the lamp arrangement, via which the converter supplies the lamp arrangement with electrical energy.
  • the converter controls or regulates a luminous flux flowing through the illuminant arrangement and adjusts the brightness of the illuminant arrangement (11).
  • a controlled disconnector is provided in addition to the travel switch of the converter.
  • the circuit breaker is arranged in the at least one measuring circuit.
  • the circuit breaker is configured to interrupt the flow of current through the at least one measuring circuit when the converter control signal is switched off. It is thereby achieved that when the transducer signal is switched off or not applied, no current flows through the series connection of the luminous arrangement and the measuring circuit.
  • the bulb arrangement does not light up.
  • the consumption of electrical energy is reduced when the converter control signal is not applied, since no current flows through the measuring circuit.
  • the circuit breaker is arranged in the measuring circuit and is not arranged between the lamp arrangement and the lighting device driving the converter, the current flowing between the converter and the lamp arrangement current does not flow through the circuit breaker, which also contributes to the improved efficiency of the drive circuit since the circuit breaker, which is preferably formed by a semiconductor switch, also has a resistance in the conductive or closed state.
  • both a measuring circuit for determining the luminous flux, as well as a measuring circuit for determining the lighting means voltage available.
  • each measuring circuit can be assigned a separate disconnecting switch.
  • the two measuring circuits can be separated from the lamp arrangement independently of one another.
  • the converter is preferably designed as a buck converter with an inductor connected in series with the lamp arrangement. In one embodiment, it may be implemented as a so-called "inverse buck converter”. Such transducers are available as standard components cost.
  • the converter switch and / or the circuit breaker may be designed as a semiconductor switch and be formed for example by a field effect transistor or a bipolar transistor.
  • a field effect transistor in one embodiment, an n-channel MISFET is preferably used of the enhancement type.
  • a bipolar transistor in particular a pnp transistor can be used for the circuit breaker.
  • the switching state of the circuit breaker depends on a switching state of a controlled by a switching signal control switch.
  • the circuit breaker is thus indirectly switched over the control switch between its conducting and its blocking switching state.
  • the control switch can also be designed as a semiconductor switch.
  • a control switch for example, a field effect transistor or a bipolar transistor can be used.
  • the switching signal and / or the converter control signal are or is generated via a control unit, which may have a microcontroller.
  • control switch is designed as a separate component, in particular a semiconductor component.
  • the converter switch can serve as a control switch, so that no separate component is required.
  • the converter control signal simultaneously represents the switching signal.
  • the converter switch can be connected via a coupling circuit with a control input of the circuit breaker.
  • the coupling circuit has a coupling capacitor or is formed by a coupling capacitor.
  • the coupling capacitor is used when applying a converter control signal, so if the converter switch alternately changes its switching state, to allow a current in the control input or a voltage at the control input of the circuit breaker to hold the circuit breaker in the conductive or closed state. If, however, no converter control signal is present, the converter switch is in its blocking or opened state.
  • the coupling capacitor can then decouple the control input of the circuit breaker from the voltage applied to the converter switch reference voltage, whereby the circuit breaker is switched to its blocking or open switching state.
  • the coupling circuit in addition to the coupling capacitor at least have another component.
  • This further component can serve, for example, for voltage limiting and / or voltage stabilization. This is particularly useful when the circuit breaker is formed by a semiconductor switch, such as a bipolar transistor or a field effect transistor. As a result, the circuit breaker can be kept in its saturation and thus in the conducting state when the converter control signal is present. In addition, the current flow through the circuit breaker can be limited when it is in its conductive state.
  • the at least one further component can connect the control input of the disconnector and one of its two terminals for this purpose. As a component, a zener diode and / or a capacitor and / or an ohmic resistor and / or a diode can serve.
  • control switch is preferably formed by an npn transistor.
  • FIG. 1 a first embodiment of a drive circuit 10 for a lighting device 11 is illustrated in the block diagram.
  • the light-emitting device 11 has at least one light-emitting diode 12.
  • Several light emitting diodes 12 of the lighting device 11 may be connected in series and / or parallel to each other.
  • a light source capacitor 13 is connected in the embodiments described here.
  • the lighting device 11 is connected to a converter 15.
  • a converter 15 About the transducer 15 of the lamp assembly 11 is provided electrical energy.
  • the desired brightness of the illuminant arrangement 11 can also be set via the converter 15.
  • the converter 15 controls or regulates, in particular, the illuminant voltage UL applied to the illuminant arrangement 11 and / or the luminous flux IL flowing through the illuminant arrangement 11.
  • the converter 15 is designed in the embodiment as a buck converter and in particular as a so-called "inverse buck converter”. It has an inductor 16 connected in series with the lamp arrangement 11, for example a coil. The inductance 16 is connected to the first terminal side 11a of the lamp arrangement 11, which has a lower potential. The second terminal side 11 b with a higher potential of the lamp assembly 11 is applied to a reference voltage UB, which may be a rectified AC voltage or a DC voltage.
  • a reference voltage UB which may be a rectified AC voltage or a DC voltage.
  • the converter 15 also includes a converter switch 17 and a converter diode 18.
  • the cathode of the converter diode 18 is connected to the reference voltage UP.
  • the anode of the converter diode 18 is connected both to the converter switch 17, and to the inductor 16.
  • On the converter diode 18 opposite terminal side of the converter switch 17 is connected via a first resistor 19 to ground GND.
  • the value and / or the time profile of the current through the converter switch 17 can be determined via the first resistor, in particular in order to control the converter signal W depending therefrom.
  • a measuring circuit 23 is designed as a current measuring circuit 24 and the other measuring circuit 23 as a voltage measuring circuit 25.
  • the current measuring circuit 24 has a series circuit 26 which is connected directly or indirectly to the ground GND and connected in series with the lighting arrangement 11, comprising a first series resistor 26a and a second series resistor 26b connected in series therewith.
  • the first series resistor 26a is used to compensate for deviations of the luminous flux IL, which depend on the load, so for example according to the number and arrangement of the LEDs 12.
  • the second series resistor 26b is for impedance matching.
  • the voltage applied to the first resistor 19 measurement signal is characterized high impedance and between the two series resistors 26a, 26b.
  • the current measurement 24 is, for example, directly with the lamp assembly 11 is connected and connected via the first resistor 19 indirectly to the ground GND.
  • the voltage measuring circuit 25 has a voltage divider 27 with a first voltage divider resistor 27a and a second voltage divider resistor 27b. Via a center tap between the two voltage divider resistors 27a, 27b, a voltage value is measured over which the luminous flux UL applied to the luminous means arrangement 11 can be determined, since the resistance values of the two voltage dividing resistors 27a, 27 are known. To stabilize the measured voltage applied to the second voltage divider resistor 27b, a first capacitor 28 may be connected in parallel to the second voltage divider resistor 27b.
  • the lamp assembly 11 is connected with its first terminal side 11a to the ground GND.
  • Both measuring circuits 23 thus provide a path over which a luminous flux IL flowing through the luminous means arrangement 11 can flow from the reference voltage UB to the ground GND, independently of the switching state of the converter switch 17. This is undesirable since a luminous flux IL can then flow even when the converter 15 is not operated and, so to speak, switched off, the converter switch 17 being in its blocking or open switching state.
  • the converter switch 17 is driven via a converter control signal W.
  • the converter control signal W may, for example, be a pulse-width-modulated signal, via which, when the illuminant arrangement 11 is switched on, the luminous flux IL is controlled or regulated and consequently the brightness the lamp assembly 11 can be adjusted.
  • the converter control signal W can be generated by a control unit, for example a microcontroller.
  • the control unit can transmit a measured value describing the luminous flux IL via the current measuring circuit 24 and a measured value describing the luminous medium voltage UL via the voltage measuring circuit 25.
  • the first drive circuit 10a has at least one disconnecting switch 32.
  • a disconnect switch 32 is provided in each of the two measurement circuits 23.
  • the disconnectors 32 are controlled switches whose switching state can be switched over a voltage applied to a control input 32a of the circuit breaker 32 disconnector signal T.
  • the circuit breaker signal T can be generated directly by the control unit. However, it is also possible to provide a circuit part with a control switch 33 between the at least one circuit breaker 32 and the control unit, as will be explained later with reference to embodiments.
  • the first drive circuit 10a operates as follows:
  • the converter switch 17 switched.
  • a luminous flux IL flows from the reference voltage UB through the luminous means arrangement 11 via the inductance 16 and the converter switch 17 as well as the first resistor 19 to ground GND.
  • 16 energy is temporarily stored in the inductance.
  • the luminous flux IL increases with closed transducer switch 17 with time. If the traveling switch 17 is then opened, the inductance 16 discharges via the converter diode 19. The luminous flux IL decreases due to the decreasing energy in the inductance 16 with time.
  • clocked opening and closing of the converter switch 17 can be set in this way a desired effective value of the luminous flux IL and thus a predetermined brightness of the lamp assembly 11 can be achieved.
  • the luminous flux IL or its effective value is determined by the measured value of the current measuring circuit 24 and can be controlled by the control unit via the converter control signal W.
  • the control unit can be put into its idle state.
  • the converter control signal W is then turned off and the traveling switch 17 is in its blocking or opened switching state.
  • the circuit breakers 32 are switched to their blocking or open switching state. The current flow through the lamp assembly 11 is now completely prevented. Only when the lamp assembly 11 is to be operated again, the control unit causes the switching of the circuit breaker 32 in its conductive or closed switching state.
  • the circuit breaker 32 and the converter switch 17 are preferably as semiconductor switches, in particular as field effect transistors or bipolar transistors, as will be explained below with reference to concrete embodiments.
  • FIG. 2 a second drive circuit 10b is illustrated in the block diagram.
  • the only difference of the second drive circuit 10b with respect to the first drive circuit 10a after FIG. 1 consists in that both measuring circuits 23, so the current measuring circuit 24 and the voltage measuring circuit 25 only have a common disconnect switch 32.
  • the series circuit 26 and the voltage divider 27 are according to FIG. 2 connected via a common series connected in this circuit breaker 32 to the first terminal 11a of the lamp assembly 11.
  • the structure and function of the second drive circuit 10b correspond to the first drive circuit 10a, so that reference may be made to the above explanations.
  • FIG. 3 shows a variant of the first drive circuit 10a after FIG. 1 .
  • the transducer switch 17 and the circuit breaker 32 are formed by field-effect transistors and, according to the example, n-channel MISFETs of the enhancement type.
  • a control switch 33 is provided, which is also formed in this embodiment by an n-channel MISFET accumulation type.
  • the control switch 33 may be formed generally analogous to at least one circuit breaker 32 and / or the converter switch 17 by a semiconductor switch.
  • the control input here the gate of the control switch 33 is controlled via a switching signal S to the control switch 33 between its conducting and to switch to its blocking state.
  • the drain terminal of the control switch 33 is connected to ground GND.
  • the source terminal of the control switch 23 is connected via a second resistor 34 to a supply voltage UV.
  • the supply voltage UV is a DC voltage or a rectified AC voltage.
  • the source terminal of the control switch 33 is further connected via a third resistor 35 to the control input 32a of the circuit breaker 32 of the current measuring circuit 24 and via a fourth resistor 36 to the control input 32a of the circuit breaker 32 of the voltage measuring circuit 25.
  • the switching state of the circuit breaker 32 can be switched over the voltage applied to the control input 32a. If the gate-source voltage of the field-effect transistor drops below a threshold voltage, the field-effect transistor becomes nonconductive. Otherwise, the field effect transistor is conductive. If, therefore, the control switch 33 is turned on via the switching signal S, the potential at the two control inputs 32a is reduced, and the separating shells 32 change over into their blocking state. In this case, the supply voltage UV is completely applied to the second resistor 34.
  • the gate-source voltage of the disconnector is greater than the threshold voltage and the circuit breaker 32 is conductive.
  • FIG. 4 shows the block diagram of a specific embodiment of the second drive circuit 10b after FIG. 2 .
  • the circuit breaker 32 is formed by a bipolar transistor, for example a pnp bipolar transistor. Of the formed from the base control input 32a is connected via a fifth resistor 40 and a sixth resistor 41 to the first terminal 11a of the lamp assembly 11. The control input 32a is also connected via the fifth resistor 40 and a seventh resistor 42 via the control switch 33 to ground GND.
  • the control switch 33 is in this embodiment as a bipolar transistor and according to FIG. 4 designed as npn transistor.
  • the switching signal S is applied via an eighth resistor 43 to the base of the bipolar transistor forming the control switch 33.
  • a ninth resistor 44 connects the base to the emitter, and the emitter is also connected to ground GND.
  • the collector of the bipolar transistor is connected to the seventh resistor 42.
  • FIG. 5 shows the block diagram of a third drive circuit 10c.
  • the core idea of this third drive circuit 10c is to couple the circuit breaker 32 to the converter 15 in such a way that the circuit breaker 32 switches to its blocking or open switching state when the converter signal W at the converter switch 17 is switched off, for example when the control unit switches to the idle state ,
  • the control input 32a of the circuit breaker 32 connected via a coupling circuit 45 to the converter 15.
  • the coupling circuit 45 connects either the ground-side terminal of the converter switch 17 or - as in FIG. 5
  • the converter switch 17 takes over the function of the control switch 33.
  • the converter switch 17 assumes the function of the control switch 33.
  • the two measuring circuits 23 have according to FIG. 5 a common disconnect switch 32.
  • the series circuit 26 has three resistors connected in series, according to FIG. 5 two first series resistors 26a are connected in series. In principle, a single first series resistor 26a would also suffice.
  • the circuit breaker 32 and the converter switch 17 are analogous to those in FIG. 3 illustrated embodiment formed by a field effect transistor.
  • the source terminal of the circuit breaker 32 is connected to the measuring circuits 23.
  • the drain terminal of the circuit breaker 32 is connected to the lamp assembly 11.
  • the coupling circuit 45 has a coupling capacitor 47 in a connecting line 46 between the reference voltage side terminal of the converter switch 17 and the control input 32a of the circuit breaker 32.
  • the coupling circuit 45 serves as a charge pump with voltage limitation and defined load.
  • the coupling circuit 45 in series with the coupling capacitor 47, a first diode 48, the cathode with the Control input 32 of the circuit breaker 32 is connected.
  • the coupling circuit 45 has parallel to the gate-source connection of the circuit breaker 32, a parallel circuit 49 with a Zener diode 50 and / or a second capacitor 51 and / or a seventh resistor 52.
  • all three components 50, 51, 52 are provided, wherein the cathode of the zener diode 50 is connected to the control input 32a of the circuit breaker 32.
  • the center tap between the coupling capacitor 47 and the first diode 48 is connected, for example, to the cathode of a second diode 53 whose anode is connected to the source terminal of the circuit breaker 32.
  • the third drive circuit 10c operates as follows:
  • the converter switch 17 is clocked by the pulse width modulated converter control signal W between the conductive and the blocking switching state, whereby the voltage at the coupling capacitor 47 substantially between UB, for example, 400 volts, and 0V changes. If this voltage has a falling edge, the second capacitor 51 is charged via the second diode 53. If this voltage has a rising edge, the second capacitor 51 is charged via the first diode 48. The two diodes 48, 53 thus cause a full-wave rectification. The gate of the circuit breaker 32 formed by the field effect transistor is charged and the circuit breaker 32 conducts.
  • the zener diode 50 serves to limit the voltage of the gate-source voltage. Via the second capacitor 51, this gate-source voltage can be stabilized.
  • the converter switch 17 When switching off the converter control signal W, the converter switch 17 remains in its blocking or opened Status. As a result, no electricity flows through the charge pump.
  • the second capacitor 51 discharges via the seventh resistor 52, the potential at the control input 32a (gate) decreases and thus also the gate-source voltage. Finally, the disconnect switch 32 blocks. An undesired current through the measuring circuits 23 when the converter control signal W is switched off is avoided.
  • the invention relates to a drive circuit 10 for driving a light-emitting device 11 with one or more light-emitting diodes 12.
  • the drive circuit 10 has a converter 15 with an inductance 16 connected in series with the light-emitting device 11 and a converter switch 17.
  • the converter switch 17 is preferably controlled via a converter control signal W pulse width modulated when the lamp assembly 11 is to be operated.
  • at least one measuring circuit 23 is provided, which is connected in series with the lighting device 11. In order to avoid current flow through the luminous means arrangement 11 and the measuring circuit 23 in the case of a blocking converter switch 17, for example when the converter control signal W is switched off, at least one disconnecting switch 32 is present in the measuring circuit.
  • Such a means may be, for example, a coupling capacitor 47 between the converter switch and a control input 32a of the circuit breaker 32.

Landscapes

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

Claims (15)

  1. Circuit de commande (10) pour un agencement de moyen d'éclairage (11), dans lequel une tension de référence (UB) est appliquée à une connexion (11b) à potentiel de tension supérieur de l'agencement de moyen d'éclairage (11), comprenant un convertisseur (15) auquel l'agencement de moyen d'éclairage (11) est connecté et qui présente un commutateur de convertisseur (17) commandé par un signal de commande de convertisseur (W), le convertisseur (15) commandant ou régulant un courant de moyen d'éclairage (IL) circulant à travers l'agencement de moyen d'éclairage et réglant la luminosité de l'agencement de moyen d'éclairage, comprenant au moins un circuit de mesure (23) qui est couplé en série avec l'agencement de moyen d'éclairage (11) et qui sert à déterminer le courant circulant à travers l'agencement de moyen d'éclairage (11) et/ou le commutateur de convertisseur (17) et/ou à déterminer la tension de moyen d'éclairage (UL) appliquée à l'agencement de moyen d'éclairage (11), caractérisé en ce qu'il est prévu un sectionneur (32) commandable qui est disposé dans ledit au moins un circuit de mesure (23), dont l'état de commutation peut être modifié au moyen d'un signal de sectionneur (T) et qui, lorsque le signal de commande de convertisseur (W) est désactivé, adopte un état de commutation dans lequel il interrompt la circulation de courant à travers ledit au moins un circuit de mesure (23).
  2. Circuit de commande selon la revendication 1, caractérisé en ce qu'un circuit de mesure (23) pour déterminer le courant circulant à travers l'agencement de moyen d'éclairage (11) et/ou le commutateur de convertisseur (17) et un circuit de mesure (23) pour déterminer la tension de moyen d'éclairage (UL) sont prévus, et soit chaque circuit de mesure présente un sectionneur (32), soit les deux circuits de mesure (23) sont reliés à l'agencement de moyen d'éclairage (11) par l'intermédiaire d'un sectionneur (32) commun.
  3. Circuit de commande selon l'une des revendications précédentes, caractérisé en ce que le convertisseur (15) est réalisé sous la forme d'un convertisseur abaisseur avec une inductance (16) couplée en série avec l'agencement de moyen d'éclairage (11).
  4. Circuit de commande selon l'une des revendications précédentes, caractérisé en ce que le commutateur de convertisseur (17) et/ou le sectionneur (32) est réalisé sous la forme d'un transistor à effet de champ ou d'un transistor bipolaire.
  5. Circuit de commande selon la revendication 4, caractérisé en ce que le transistor à effet de champ est réalisé sous la forme d'un MISFET à canal n.
  6. Circuit de commande selon la revendication 4, caractérisé en ce que le transistor bipolaire est réalisé sous la forme d'un transistor pnp.
  7. Circuit de commande selon l'une des revendications précédentes, caractérisé en ce que l'état de commutation du sectionneur (32) dépend de l'état de commutation d'un commutateur de commande (33) commandé par un signal de commutation (S).
  8. Circuit de commande selon la revendication 7, caractérisé en ce que le commutateur de commande (33) est réalisé sous la forme d'un composant séparé.
  9. Circuit de commande selon la revendication 7, caractérisé en ce que le commutateur de commande (33) est formé par le commutateur de convertisseur (17).
  10. Circuit de commande selon l'une des revendications précédentes, caractérisé en ce que le convertisseur (15) est relié à une entrée de commande (32a) du sectionneur (32) par l'intermédiaire d'un circuit de couplage (45) présentant un condensateur de couplage (47).
  11. Circuit de commande selon la revendication 10, caractérisé en ce que le condensateur de couplage (47) relie l'entrée de commande (32a) du sectionneur (32) à la connexion du commutateur de convertisseur (17) qui est reliée à une tension de référence (UB).
  12. Circuit de commande selon la revendication 10 ou 11, caractérisé en ce que le circuit de couplage (45) présente, en plus du condensateur de couplage (47), au moins un autre composant (50, 51) de limitation de tension et/ou de stabilisation de tension.
  13. Circuit de commande selon la revendication 12, caractérisé en ce que l'autre composant (50, 51) relie l'entrée de commande (32a) du sectionneur (32) à une des deux connexions du sectionneur (32).
  14. Circuit de commande selon l'une des revendications 7 à 13, caractérisé en ce que le commutateur de commande (33) est réalisé sous la forme d'un transistor à effet de champ ou d'un transistor bipolaire.
  15. Circuit de commande selon la revendication 14, caractérisé en ce que le transistor bipolaire est réalisé sous la forme d'un transistor npn.
EP12178287.4A 2012-07-27 2012-07-27 Commutateur de commande pour un agencement de moyen d'éclairage avec un sectionneur pouvant être commandé Active EP2690927B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12178287.4A EP2690927B1 (fr) 2012-07-27 2012-07-27 Commutateur de commande pour un agencement de moyen d'éclairage avec un sectionneur pouvant être commandé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12178287.4A EP2690927B1 (fr) 2012-07-27 2012-07-27 Commutateur de commande pour un agencement de moyen d'éclairage avec un sectionneur pouvant être commandé

Publications (2)

Publication Number Publication Date
EP2690927A1 EP2690927A1 (fr) 2014-01-29
EP2690927B1 true EP2690927B1 (fr) 2015-01-28

Family

ID=46845602

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12178287.4A Active EP2690927B1 (fr) 2012-07-27 2012-07-27 Commutateur de commande pour un agencement de moyen d'éclairage avec un sectionneur pouvant être commandé

Country Status (1)

Country Link
EP (1) EP2690927B1 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5525259B2 (ja) * 2006-06-22 2014-06-18 コーニンクレッカ フィリップス エヌ ヴェ パルス電流を用いて負荷を駆動させる駆動回路
WO2010049074A1 (fr) 2008-10-20 2010-05-06 Tridonicatco Schweiz Ag Circuit de commande pour diodes électroluminescentes

Also Published As

Publication number Publication date
EP2690927A1 (fr) 2014-01-29

Similar Documents

Publication Publication Date Title
DE112017006120B4 (de) Bootstrap-kondensator-überspannungs-überwachungsschaltung für wandler auf gan-transistorbasis
DE102011087368B4 (de) Treiberschaltung, Anordnung und Verfahren zum Bootstrapping eines Schaltertreibers
EP2888800B1 (fr) Appareil de lumière de secours
DE102011087434B4 (de) Schaltung und drei Verfahren zum Treiben eines Schalters
DE102016114820A1 (de) System und Verfahren für einen Schalter mit einem selbstleitenden Transistor und einem selbstsperrenden Transistor
DE112012001674T5 (de) Kaskodenschalter mit selbstsperrenden und selbstleitenden Bauelementen und die Schalter umfassende Schaltungen
DE102006024422A1 (de) Schaltungsanordnung und Verfahren zur Spannungskonversion
DE3914799A1 (de) Durchflusswandler
DE112011100594B4 (de) LED-Spannungsmessung
DE102011087431A1 (de) Anordnung und Verfahren zum Treiben eines Kaskodenschalters
DE112012006360T5 (de) Gleichstromversorgungskreis
EP2690927B1 (fr) Commutateur de commande pour un agencement de moyen d'éclairage avec un sectionneur pouvant être commandé
DE112015007243B4 (de) Festkörperbeleuchtungsanordnung
WO2009062554A1 (fr) Alimentation en courant commutable pour circuits auxiliaires dans un convertisseur
DE102017105560A1 (de) Wandeln von elektrischer energie
EP1195885B1 (fr) Circuit redresseur synchrone
EP3393207B1 (fr) Régulateur de commutation destiné au fonctionnement de moyens lumineux à suppression de luminescence résiduelle
DE102006049228A1 (de) Verfahren zur Optimierung der EMV, Lebensdauer und Verlustleistung einer Anordnung für den getakteten Betrieb eines induktiven Verbrauchers
AT504121B1 (de) Schaltungsanordnung zur ansteuerung von schalttransistoren
DE102007009520A1 (de) Schnittstelle für Digitalsignale und Netzspannungssignale, mit schaltbarer Konstantstromquelle
EP0766394A2 (fr) Montage servant à commander un transistor à effet de champ MOS de puissance à enrichissement
EP1943885A1 (fr) Dispositif d'utilisation d'au moins une lampe a decharge
DE102015217146A1 (de) Getaktete Sperrwandlerschaltung
DE202012004052U1 (de) Buck-Konverter zum Bereitstellen eines Stroms für mindestens eine LED
DE102022211326A1 (de) Gleichspannungs-Abwärtswandler

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20140203

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20141024

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502012002203

Country of ref document: DE

Effective date: 20150312

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 708703

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150315

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20150128

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150128

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150128

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150128

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150128

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150428

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150428

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150128

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150128

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150429

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150528

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150128

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150128

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502012002203

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150128

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150128

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150128

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150128

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150128

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150128

26N No opposition filed

Effective date: 20151029

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150128

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150128

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150727

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150731

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150731

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20160331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150727

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20160727

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20120727

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160727

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150128

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150128

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150128

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 708703

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170727

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20150128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170727

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 502012002203

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: H05B0033080000

Ipc: H05B0045000000

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502012002203

Country of ref document: DE

Owner name: VOSSLOH-SCHWABE DEUTSCHLAND GMBH, DE

Free format text: FORMER OWNER: VOSSLOH-SCHWABE DEUTSCHLAND GMBH, 73660 URBACH, DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240730

Year of fee payment: 13