EP2529594A2 - Appareil de commande de moyens d'éclairage, en particulier de led - Google Patents

Appareil de commande de moyens d'éclairage, en particulier de led

Info

Publication number
EP2529594A2
EP2529594A2 EP11705799A EP11705799A EP2529594A2 EP 2529594 A2 EP2529594 A2 EP 2529594A2 EP 11705799 A EP11705799 A EP 11705799A EP 11705799 A EP11705799 A EP 11705799A EP 2529594 A2 EP2529594 A2 EP 2529594A2
Authority
EP
European Patent Office
Prior art keywords
voltage
operating device
capacitor
monitoring
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.)
Granted
Application number
EP11705799A
Other languages
German (de)
English (en)
Other versions
EP2529594B1 (fr
Inventor
Reinhard BÖCKLE
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 EP2529594A2 publication Critical patent/EP2529594A2/fr
Application granted granted Critical
Publication of EP2529594B1 publication Critical patent/EP2529594B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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]
    • H05B45/30—Driver circuits
    • H05B45/355—Power factor correction [PFC]; Reactive power compensation
    • 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]
    • H05B45/39—Circuits containing inverter bridges

Definitions

  • the invention relates to an operating device for lighting means, in particular LED, according to the preamble of
  • Patent claim 1 and a method according to the preamble of claim 14.
  • Illuminants are used and used in lighting systems to illuminate with the help of a central
  • Control unit on and off and adjust the brightness.
  • the bulbs are driven by operating devices.
  • an emergency power supply can be applied to ensure that the lighting remains lit.
  • bulbs refers to both gas discharge lamps and halogen lamps or light emitting diodes (LED).
  • LED light emitting diodes
  • Such a light source can be arranged individually or together with other light sources in a luminaire, which may also contain the operating device.
  • Control gear is switched off.
  • the invention relates to a control gear for
  • Power supply network a subsequent line filter and a rectifier, comprising a
  • Monitoring circuit for detecting whether 'applied to the terminals for power consumption, an AC voltage or not, the monitoring circuit is a capacitive
  • Voltage divider which is arranged between one of the two inputs of the rectifier and ground and the center of the capacitive voltage divider another diode is arranged, which charges a capacitor when the voltage at the center of the capacitive voltage divider, the voltage at the monitoring capacitor exceeds, and parallel to the monitoring capacitor, an actively controlled discharge path is arranged.
  • the invention also relates to a lighting system with at least one operating device, wherein the
  • Power supply network for supplying the operating device switches on and the operating device recognizes this connection by means of the monitoring circuit.
  • the invention also relates to a method for detecting whether an AC voltage is present at the terminals for current consumption of an operating device for lamps, in particular LED, or not, wherein the terminals are coupled to the current consumption from a power supply network with a subsequent network filter and a rectifier, wherein the detection by means of a
  • Voltage divider another diode is arranged, which charges a capacitor when the voltage at
  • Monitoring capacitor is selectively discharged by an actively controlled discharge path.
  • FIG. 1 shows schematically the embodiment of an operating device according to the invention for an LED as
  • Illuminant Fig. 2 shows schematically the embodiment of a
  • Gas discharge lamp as a lighting means Fig. 3 shows a detail of an inventive
  • the invention is based on a
  • Embodiment of an operating device for an LED explained.
  • the present invention can be applied to all types of lighting apparatus.
  • Gas discharge lamps halogen lamps or inorganic or organic light-emitting diodes can be used.
  • a control circuit 2 which controls and monitors all functions of the components of the operating device 1.
  • the operation of the converter 3 is controlled and monitored, in particular also regulated.
  • the converter 3 is connected via connections to the power supply network 20 and receives the energy required to operate the lamp. Furthermore, it also controls the operation of the lamp, in particular the brightness of the lamp.
  • Illuminant is a lamp LED connected to the converter 3 of the operating device 1.
  • the converter 3 assumes both the task of correct power consumption from the
  • Power supply network 20 which may be predetermined by the provisions of the energy supplier. Above all, this task can involve a sinusoidal current consumption with as few high-frequency disturbances as possible.
  • the converter 3 can therefore be a so-called filter for
  • the converter 3 avoids high-frequency interference, which may either come from the power supply network 20 or were generated by the converter 3, and include an active power factor correction circuit.
  • the converter 3 ensures the proper operation of the lamp LED. In particular, he can adjust the current and / or the voltage through the lamp LED or regulate.
  • the converter 3 can also be designed as a multi-stage converter in order to divide the various tasks of the individual stages of the converter 3.
  • Power supply network 20 may be a low-frequency
  • the converter 3 may contain an energy store, this may be by a storage capacitor or a rechargeable
  • the operating device 1 and the control unit 10 are formed.
  • Component of a lighting system A Component of a lighting system A.
  • the control circuit 2 is further connected to the
  • Interface circuit 4 is connected to the bus line 21. Via the bus line 21, the control commands sent by the control unit 10 are transmitted. These control commands are received by the interface circuit 4 and forwarded to the control circuit 2.
  • the control circuit 2 can evaluate and store the control commands. According to the transmitted control commands, the control circuit 2 can control the operation of the lamp LED by the converter 3.
  • the control circuit 2 can also monitor the operation of the lamp LED and the converter 3 and, in the event of a fault or special event, send this detection and via the interface circuit 4 and the bus line 21 a corresponding control command to the control unit 10.
  • Bus line 21 may be connected.
  • the various controllers 10 and 11 can be any controllers 10 and 11.
  • the control circuit 2 may include a memory 8 or drive an external memory 8, which in the
  • the bus line 21 is designed as a two-wire data line, which transmits a control signal as a digital signal with a low DC voltage.
  • Bus line 21 is transmitted, for example, a data transfer according to DALI standard.
  • Interface circuit 4 and controller 10 are capable of receiving control commands in accordance with the DALI standard. It should be noted that the data transfer of the
  • Control commands via the bus line 21 does not have to be wired, but it can, for example, wirelessly via a radio link or via a power line
  • FIG. 2 shows an example in which at least one
  • Control unit 10 an operating device 1 for a
  • Gas discharge lamp LA as a light source via a
  • Bus line 21 drives. At this bus line 21, another control unit 11 is connected.
  • the operating device 1 has a rectifier 14, which is connected to the power supply network 20.
  • the energy absorbed by the rectifier 14 is transmitted to a DC link circuit 15, which includes an active power factor correction circuit (PFC) and a
  • DC link circuit 15 is followed by an inverter 16, via a load circuit 17, the gas discharge lamp LA
  • the inverter 16 can by a
  • Half bridge are formed, which feeds the load circuit 17 with a clocked DC voltage.
  • the load circuit 17 may by a series resonant circuit of a
  • the control circuit 2 is connected via the interface circuit 4 to the bus line 21 and can thus receive the control commands sent by the control unit 10.
  • the converter 3 of the operating device 1 shown in FIG. 1 may comprise the function blocks rectifier 14,
  • Load circuit 17 of the operating device 1 shown in FIG. 2 contain, in comparison to Figure 2 but these are not shown individually in Fig. 1.
  • Fig. 3 shows a part of the operating device 1 with the monitoring circuit according to the invention.
  • the operating device 1 has the connections PI and P2 for the power supply network 20.
  • the connections PI and P2 are followed by a line filter which can be formed, for example, by an LC element (C1, L3, L4).
  • a line filter which can be formed, for example, by an LC element (C1, L3, L4).
  • Line filter is followed by the rectifier 14, which is formed by a full-wave rectifier D3, D4, D5, D6.
  • the rectifier 14 feeds over the
  • the monitoring circuit has a capacitive
  • Voltage divider C6, C3 which is arranged between one of the two inputs of the rectifier 14 and ground.
  • a diode Dl to the anode be connected to ground and the center of the capacitive voltage divider C6, C3, a further diode D2 be arranged, which charges a capacitor C4 N when the voltage at the center of the capacitive
  • Voltage divider C6, C3 exceeds the voltage across the monitoring capacitor C4.
  • the voltage at the monitoring capacitor C4 can be evaluated to detect an AC voltage.
  • Control circuit 2 the voltage at the monitoring capacitor C4 and controls depending on this monitoring the operating device 1 accordingly. For example, the operating device 1 upon detection of switching from
  • a discharge path may be arranged parallel to the monitoring capacitor C4.
  • the discharge path may include a resistor R2.
  • the discharge path may additionally or alternatively comprise a switch Q8.
  • the switch Q8 can be turned on for a quick discharge of the monitoring capacitor C4 for a short time.
  • Discharge path is actively controlled by the control circuit 2 via the switch Q8.
  • the switch Q8 may preferably be in regular
  • Switching on the switch Q8 can be done for example every 10 ms, 20 ms or even 100 ms.
  • the switch Q8 is preferably externally controlled
  • control circuit 2 can be switched off
  • Switch Q8 is not activated and thus the power consumption of the operating device 1 is reduced. This can
  • Discharge paths may not have permanent
  • a further monitoring circuit may be arranged to detect whether in the absence of an AC voltage, a DC voltage or no supply voltage to the terminals PI, P2 for
  • the further monitoring circuit may be a signal from the DC link circuit 15th
  • DC link circuit 15 preferably an actively clocked power factor correction circuit to be evaluated.
  • Operating device 1 allows in which the lighting system A in case of failure of the AC mains voltage a
  • the operating device 1 may switch to a reduced-power operation upon detection of switching from AC voltage to DC voltage. This recognition takes place as already described by the
  • Fig. 4 shows the course of the voltage over the
  • Power supply network 20 is switched from a DC voltage to an AC voltage. While the
  • Alternating voltage is no longer its maximum amplitude and is again in the falling edge. With the falling amplitude of the AC voltage and the voltage at the midpoint of the capacitive voltage divider C6, C3 drops. When there is a discharge path parallel to the monitor capacitor C4, in the phase in which no recharge of the monitor capacitor C4 due to the diode D2 locked occurs, there is a discharge of the diode
  • Voltage change on the monitoring capacitor C4 can be used to detect an AC voltage on the power supply network 20.
  • Fig. 5 shows the course of the voltage over the
  • Power supply network 20 is switched from an AC voltage to a DC voltage. In this. Case is after switching to a DC voltage no change in voltage or no voltage at the monitoring Kondensators C4 recognizable.
  • AC voltage can be used to a DC voltage.
  • this overshoot by means of a
  • Thresholdswitch be detected. This increase in the voltage at the monitoring capacitor C4 can also be used as a wake-up signal for the control circuit 2. For example, the excessive voltage as
  • Starting energy for the supply of the control circuit 2 can be used.
  • the resulting excessive voltage to start the control circuit 2 can be used.
  • a method is also made possible in which a detection whether an AC voltage is present at the terminals PI, P2 for current consumption or not, by means of a capacitive voltage divider C6, C3, the between. one of the two inputs of the rectifier 14 and ground is arranged. It is parallel to the lower one
  • the voltage at the monitoring capacitor C4 is evaluated to detect an AC voltage.
  • the discharge path may include a resistor R2 and / or a switch Q8.
  • the method can be such
  • the connections PI, P2 are coupled to draw power from a power supply network 20 with a following network filter Cl, L3, L4 and a rectifier 14.
  • the detection takes place by means of a capacitive voltage divider C6, C3, which is arranged between one of the two inputs of the rectifier 14 and ground.
  • a capacitive voltage divider C6, C3 At the center of the capacitive voltage divider C6, C3, another diode D2 is arranged, which charges a monitoring capacitor C4 when the voltage at the center of the capacitive voltage divider C6, C3 exceeds the voltage across the monitoring capacitor C4.
  • the monitoring capacitor C4 is controlled by an active
  • Discharge path selectively discharged, preferably by means of a controlled by the control circuit 2 switch Q8. Also in connection with a data transmission via a bus line 21 can be a very energy efficient
  • the active low transmission causes a permanent voltage on the
  • Bus line 21 is present, is at power the
  • Control circuit 2 at least for a start-up and thus a start-up of the operating device 1 via the bus line 21, an almost total avoidance of losses in the sleep mode of the operating device 1 allows, while still the Aufscnies of a DC voltage on the
  • Power supply network 20 can be detected.

Landscapes

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

Abstract

L'invention concerne un appareil de commande (1) pour faire fonctionner des moyens d'éclairage, en particulier des LED, cet appareil comprenant des connexions (P1, P2) pour absorber le courant d'un réseau d'alimentation (20), un filtre de réseau (C1, L3, L4) monté en aval et un redresseur (14), et présentant un circuit de surveillance pour détecter la présence ou l'absence de tension alternative au niveau des connexions (P1, P2) pour l'absorption de courant. Selon l'invention, le circuit de surveillance présente un diviseur de tension capacitif (C6, C3) disposé entre l'une des deux entrées du redresseur (14) et la masse.
EP11705799.2A 2010-01-27 2011-01-27 Appareil de commande de moyens d'éclairage, en particulier de led Active EP2529594B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0004810U AT12237U1 (de) 2010-01-27 2010-01-27 Betriebsgerät für leuchtmittel, insbesondere led
PCT/AT2011/000045 WO2011091458A2 (fr) 2010-01-27 2011-01-27 Appareil de commande de moyens d'éclairage, en particulier de led

Publications (2)

Publication Number Publication Date
EP2529594A2 true EP2529594A2 (fr) 2012-12-05
EP2529594B1 EP2529594B1 (fr) 2013-11-13

Family

ID=44319885

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11705799.2A Active EP2529594B1 (fr) 2010-01-27 2011-01-27 Appareil de commande de moyens d'éclairage, en particulier de led

Country Status (4)

Country Link
EP (1) EP2529594B1 (fr)
AT (1) AT12237U1 (fr)
DE (1) DE112011100341A5 (fr)
WO (1) WO2011091458A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2503637B (en) * 2011-09-30 2015-05-13 Tridonic Uk Ltd Mains detection in emergency lighting systems

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3605658C3 (de) * 1986-02-21 1997-12-04 Diehl Gmbh & Co Elektronisches Schaltgerät
US20080018261A1 (en) * 2006-05-01 2008-01-24 Kastner Mark A LED power supply with options for dimming

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011091458A2 *

Also Published As

Publication number Publication date
WO2011091458A3 (fr) 2011-11-03
WO2011091458A2 (fr) 2011-08-04
AT12237U1 (de) 2012-01-15
EP2529594B1 (fr) 2013-11-13
DE112011100341A5 (de) 2012-11-22

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