• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An LED module comprises at least one light-emitting diode (25, 26), an input terminal (21) for coupling the LED module (20) to an operating device (10) and a controllable switching means (31) connected to the input terminal (21) and the at least one light emitting diode (25, 26) is coupled. By controlling the controllable switching means (31), an overcurrent limitation can be realized and / or a glow of the at least one light-emitting diode (25, 26) can be suppressed.
    公开号:AT14727U1
    申请号:TGM9002/2014U
    申请日:2014-01-20
    公开日:2016-04-15
    发明作者:Christian Nesensohn
    申请人:Tridonic Gmbh & Co Kg；
    IPC主号:
    专利说明:

    description
    LED MODULE, LIGHT AND METHOD FOR OPERATING AN LED MODULE
    The invention relates to LED modules, lights with at least one LED module and method for operating LED modules.
    Energy-saving luminaires can use light-emitting diodes (LEDs) as lighting means. An LED module can comprise one light-emitting diode or several light-emitting diodes. The LED module may be connected to an operating device, such as an LED converter, which powers the LED module.
    Conventionally, additional functions may be incorporated into the operating device or other structural units to enhance the function of an LED-based luminaire. For example, the operating device may be configured such that it has a device for current limiting at its output. The operating device may be configured to be configurable for different LED modules. For this purpose, the operating device may have corresponding adjusting elements and / or comprise a device which automatically recognizes properties of the LED module. However, such designs add to the complexity of the driver and can not always ensure a LED module matched limitation of the input current of the LED module for all LED modules.
    In addition, the LEDs of an LED module can also be excited by small currents to the lights. This can lead to the light-emitting diodes still glowing even in an off state. This effect can occur, for example, as a so-called master light after switching off. Generally, the illumination of the LEDs in an off state is referred to herein as glow. One cause of such a glare may be, for example, in line capacitances or a capacitive coupling within the operating device, but also in other capacitive or inductive couplings. To suppress glare, a device separate from the operating device and from the LED module can be provided. Even such measures can increase complexity, space requirements and production costs.
    The object of the invention is to provide an LED module, a luminaire and a method for Betrei¬ben an LED module, which provides improvements in terms of at least some of the disadvantages described above. In particular, it is an object to provide an LED module, a luminaire and a method for operating an LED module with which the risk of destruction of LEDs can be reliably reduced and / or glowing of LEDs can be reliably suppressed, without reducing the complexity of the operating device to increase regularly.
    This object is achieved by an LED module, a lamp and a method with the features specified in the independent claims. The dependent claims define further developments of the invention.
    An LED module according to an embodiment comprises at least one light emitting diode and an input terminal for coupling the LED module with a control gear. The LED module further comprises controllable switching means coupled to the input terminal and the at least one light emitting diode.
    By integrating the controllable switching means into the LED module, functions such as limiting the current supplied to the light emitting diodes, suppressing residual light and / or communication between the LED module and the operating device can be realized via a supply line in a simple manner adapted to the respective LED module. By way of example, the switching means may be actuated to prevent the occurrence of excessive currents through the at least one light emitting diode and / or excessive voltages. Alternatively or additionally, the switching means may be actuated such that, in a standby mode, at least a light-emitting diode is reduced. Alternatively or additionally, the switching means can be actuated such that a data transmission from the LED module to the operating device takes place via a supply line of the LED module.
    The LED module may be configured as a structural unit, wherein the at least one light-emitting diode may be arranged on a support plate. The carrier plate may be a Leiterplat¬te, are provided on the electrically conductive connections. The controllable switching means may be disposed on the same support plate as the at least one light emitting diode.
    The controllable switching means may be arranged to interrupt an electrically conductive connection between the input connection and the at least one light-emitting diode. The controllable switching means may comprise a transistor, for example a bipolar transistor or an insulated gate transistor, which is switchable to a high resistance state so as to interrupt an electrically conductive connection between the input terminal and the at least one light emitting diode.
    The controllable switching means may be connected between the input terminal and an anode of a light emitting diode in order to interrupt the electrically conductive connection between the input terminal and the anode of the light emitting diode. As a result, an effective overcurrent limitation becomes possible in particular.
    The LED module may be configured such that the controllable switching means interrupts the electrically conductive connection between the input terminal and the at least one light emitting diode depending on an input voltage of the LED module. The controllable switching means can be selectively switched to an off state when a Ein¬gangsspannung of the LED module exceeds a threshold. Alternatively or additionally, the controllable switching means can be switched into the off state for a predetermined period of time after the input voltage of the LED module exceeds the threshold value. As a result, an overcurrent limitation is realized.
    The LED module may be configured to protect the at least one light emitting diode against overvoltage or overcurrent by breaking the electrically conductive connection.
    The LED module may alternatively or additionally be arranged so that the controllable switching means interrupts the electrically conductive connection between the input terminal and the at least one light emitting diode in a standby mode. As a result, an undesirable glow of the at least one light-emitting diode can be reduced.
    The LED module may be arranged such that the controllable switching means interrupts the electrically conductive connection between the input terminal and the at least one light emitting diode when an input voltage of the LED module is less than a further threshold value.
    The LED module may include a control circuit for controlling the controllable switching means. The control circuit may be configured to control the switching means so that its current flowing through the at least one light emitting diode meets a predetermined criterion, in particular does not destroy the light emitting diode. Alternatively or additionally, the control circuit may be configured to control the switching means so that in the standby mode a glimmering of the at least one light-emitting diode is prevented. The control circuit can be set up to switch the controllable switching means as a function of an input voltage of the LED module.
    The control circuit may be configured to switch the controllable switching means depending on data to be transmitted in order to transmit the data to be transmitted via a supply line of the LED module from the LED module to the operating device. The control circuit may be arranged so that the data to be transmitted indicate which input voltage and / or current the LED module is designed for. The control circuit may be arranged such that the data to be transmitted includes a code indicating a type of the LED module. The data may be transmitted depending on sensor values detected by a sensor of the LED module.
    According to a further embodiment, an LED module is specified which comprises at least one light-emitting diode and a current-limiting device for limiting a current flowing through the at least one light-emitting diode. The current limiting device may be connected between an input terminal of the LED module and an anode of a light emitting diode. The current limiting device may comprise a controllable switching means. The current limiting device may comprise an inductance. The current limiting device may comprise at least one transistor.
    According to a further exemplary embodiment, an LED module is specified, which comprises at least one light-emitting diode and an anti-glimmer device for suppressing the glow of the at least one light-emitting diode. The anti-glimmer device can be coupled to an input terminal of the LED module and a light-emitting diode. The anti-glimmer may include controllable switching means which is switched depending on whether a stand-by mode exists.
    A luminaire according to an embodiment comprises an operating device, in particular an LED converter, and an LED module according to an embodiment. An input terminal of the LED module is connected via a supply line to the operating device.
    The operating device may have an output terminal and an evaluation circuit coupled to the output terminal. The evaluation circuit can be set up to monitor a voltage and / or a current at the output terminal of the operating device in order to read data transmitted via the supply line from the LED module. The operating device can be set up to operate as a function of the transmitted data ¬ten. The operating device may include a converter and may be configured to control or regulate the converter depending on the data transmitted from the LED module via the supply line. The operating device may have a SELV ("Separated extra-low-voltage") range, wherein the evaluation circuit is provided in the SELV range.
    A method of operating an LED module comprising an input terminal and at least one light emitting diode according to an embodiment comprises switching at least one controllable switching means of the LED module coupled to the input terminal and the at least one light emitting diode.
    The controllable switching means may be connected between the input terminal and the at least one light emitting diode. The controllable switching means can be switched so that an electrically conductive connection between the input terminal and the at least one light-emitting diode is interrupted. For this purpose, the controllable switching means can be switched to a high-impedance state.
    The controllable switching means can be switched so that a current flowing through the at least one light emitting diode fulfills a predetermined criterion, in particular does not lead to the destruction of the at least one light emitting diode. The controllable switching means may be switched so that the at least one light emitting diode is uncoupled from the input terminal as long as an input voltage of the LED module is greater than a threshold and / or until a predetermined period of time has elapsed since the supply of an input voltage to the LED. Module has passed.
    Alternatively or additionally, the controllable switching means may be switched depending on whether there is a standby mode. The controllable switching means can be switched so that in the standby mode the at least one light-emitting diode is disconnected from the input terminal. As a result, a glow of the at least one light-emitting diode can be reduced.
    Alternatively or additionally, the controllable switching means can be switched depending on data to be transmitted in order to transmit the data via a supply line to an operating device, in particular an LED converter. The operating device may operate as a function of the data transmitted by the LED module in order to adapt an output current and / or an output voltage of the operating device to the LED module.
    Further features of the method according to embodiments and the effects thus achieved correspond to the additional features of LED modules Ausfüh¬rungsbeispielen. The method may be performed by an LED module according to an embodiment.
    Further features, advantages and functions of embodiments of the invention will become apparent from the following detailed description with reference to the accompanying drawings, in which like or similar reference characters denote units having the same or similar function.
    Fig. 1 is a schematic representation of a lamp with an LED module according to an embodiment of the invention.
    FIG. 2 is a flowchart of a method according to an embodiment. FIG.
    Fig. 3 shows an input voltage of an LED module and a current flowing through LEDs of the LED module current for an LED module according to a Ausführungs¬beispiel.
    Fig. 4 shows an input voltage of an LED module and a current flowing through LEDs of the LED module current for a LED module according to another Aus¬führungsbeispiel.
    Fig. 5 is a schematic representation of a luminaire with an LED module according to an embodiment of the invention.
    Fig. 6 is a flowchart of a method according to an embodiment.
    Fig. 1 shows a lamp with an LED module 20 according to an embodiment. The lamp comprises the LED module 20 and an operating device 10. The LED module 20 is connected to the operating device 10 via supply lines and is supplied with energy by the latter. The operating device 10 and the LED module 20 may be installed in a light. In further embodiments, the operating device 10 may also be mounted separately from the LED module 20. The operating device 10 may be configured as an LED converter. The drive device 10 can be configured as a constant current source or constant voltage source. Output terminals 11, 12 of the operating device 10 are connected to input terminals 21, 22 of the LED module 20.
    The LED module 20 has a light emitting diode or a plurality of light emitting diodes 25, 26. The light emitting diodes 25, 26 may be connected to one LED track or multiple LED links. Any number of light-emitting diodes 25, 26 can be used. The light emitting diodes 25, 26 may be inorganic light emitting diodes or organic light emitting diodes. During operation of the LED module 20, a supply voltage or a supply current is provided by the operating device 10 in order to initiate a light output by the light emitting diodes 25, 26.
    The LED module 25, 26 has a controllable switching means 31. The controllable switching means 31 is coupled to at least one of the light emitting diodes and an input terminal 21. The controllable switching means 31 may be provided so that it can decouple the Leuchtdio¬dein) of the LED module 20 of the input terminal 21. The controllable switching means 31 may be connected in series with a series connection of light-emitting diodes. The controllable switching means 31 may be connected between the input terminal 21 and the anode of the first LED of the series circuit. The controllable switching means 31 may comprise a power switch. The controllable switching means 31 may comprise a transistor, for example a bipolar transistor, an insulated gate transistor, a MOSFET or other controllable semiconductor switches. In order to decouple the light-emitting diode (s) of the LED module 20 from the input terminal 21, the controllable switching means 31 can be switched into a high-resistance state. For this, the potential at the gate electrode of the controllable switching means 31 can be adjusted accordingly. This state is also referred to below as the off state of the controllable switching means 31.
    As will be described below, the controllable switching means 31 can be switched to an off state, in order to protect the light emitting diode (s) of the LED module 20 overcurrents. Alternatively or additionally, the controllable switching means 31 can be switched into an off state in order to reduce the glow of the light-emitting diode (s) in an off state. Since the controllable switching means 31 is integrated into the LED module 20, the appropriate measures for protection against overvoltages or overcurrents and / or for the reduction of glare matched to the respective LED module 20 can be made. For example, the controllable switching means 31 can be switched that a protection against overvoltages or overcurrents and / or reducing glare matched to the number and configuration of the LEDs, depending on a surface of the LED module 20 and / or depending on other parameters of the LED module 20 is carried out.
    The LED module 20 may be configured so that the controllable switching means 31 is controlled depending on an operating state of the LED module 20 and / or the operating device 10. For this purpose, a control circuit 32 may control the controllable switching means 31 depending on an input voltage of the LED module 20. The control circuit 32 may include a voltage divider to control a voltage at a gate electrode of the switching means 31 depending on an input voltage of the LED module 20. The control circuit 32 may comprise a semiconductor integrated circuit. The control circuit 32 may include a microcontroller or controller. The control circuit 32 may be configured such that it controls the controllable switching means 31 depending on properties of the light emitting diode (s) of the LED module 20, in particular depending on allowable voltages and / or current levels of a series connection of light emitting diodes of the LED module 20. The control circuit 32 may act as a load or include a load through which an overvoltage can be released while the controllable switching means 31 is switched to the off state.
    The LED module 20 may be configured so that the controllable switching means 31 is switched so that the light-emitting diode (s) 25, 26 of the LED module 20 are protected against overvoltages or overcurrents. The LED module 20 may be configured such that the controllable switching means 31 decouples the LED (s) of the LED module 20 from the input terminal 21 when an input voltage at the input terminals 21, 22 of the LED module 20 is greater than a threshold. The controllable switching means 31 can decouple the light emitting diode (LED) 20 of the LED module 20 from the input terminal 21 if an input voltage at the input terminals 21, 22 of the LED module 20 is greater than a forward voltage of the series connection of light emitting diodes. The controllable switching means 31 may disconnect the light emitting diode (s) of the LED module 20 from the input terminal 21 when the operating device 10 begins to provide an input voltage to the LED module 20. The controllable switching means 31 can decouple the light-emitting diode (s) of the LED module 20 from the input terminal 21 at least for a predetermined time interval if the input voltage of the LED module is greater than a threshold value. The LED module 20 may be configured so that the controllable switching means 31 acts as a current limiter limiting the current flowing through the light emitting diode (s) to a maximum allowable value.
    Alternatively or additionally, the LED module 20 may be configured such that the controllable switching means 31 decouples the LED (s) of the LED module 20 from the input terminal 21 when a standby mode is activated. The LED module 20 may be configured such that the controllable switching means 31 decouples the LED (s) of the LED module 20 from the input terminal 21 when an input voltage at the input terminals 21, 22 of the LED module 20 has an amount less than one Threshold is.
    The light-emitting diode (s) 25, 26 of the LED module 20 and the controllable switching means 31 kön¬nen be mounted on a common support 29. For example, the Leuchtdio¬dein) 25, 26 and the controllable switching means 31 may be attached to the same circuit board.
    FIG. 2 is a flowchart of a method 40 according to one embodiment. The method 40 may be performed automatically by an LED module according to one embodiment.
    At step 41, it is checked whether there is an operating state at which overvoltages or overcurrents can occur. For this purpose, it can be checked in particular whether an operation of the LED module 20 is initiated by the operating device 10 providing an input voltage to the LED module 20.
    At step 42, an overcurrent limiting mechanism is initiated when it is determined at step 41 that overvoltages or overcurrents may occur. To do so, the controllable switching means 31 may be controlled to disconnect the light emitting diode (s) 25, 26 from the input terminal. The controllable switching means 31 can be switched to a high-impedance state, so as to interrupt an electrically conductive connection between the input terminal 21 and the LEDs 25, 26. The controllable switching means 31 may remain switched to the off state until the input voltage of the LED module reaches or falls below a threshold and / or until a predetermined time interval has elapsed since an input voltage is applied to the input terminals 21, 22.
    At step 43, the controllable switching means 31 is switched to an on state. Thereby, a resistance of the connection between the input terminal 21 and the anode of the light emitting diode 25 is reduced.
    By steps 41-43, an overcurrent limitation can be achieved. A current flow through the light emitting diode (s) 25, 26 is limited by the switching means 31 of the LED module so that only allowable currents occur. Additionally or alternatively, the controllable switching means 31 can also be controlled so that a glow of the light-emitting diode (s) 25, 26 of the LED module 20 is suppressed, as will be described in more detail with reference to steps 44-45.
    At step 44, it is monitored whether a standby mode of the LED module 20 or the operating device 10 is activated. For this purpose, the input voltage of the LED module 20 can be monitored. In particular, the input voltage of the LED module 20 can be compared with a wider threshold value. When a standby mode is activated, the controllable switching means 31 is switched to the off state at step 45. As a result, the LEDs of the LED module 20 in standby mode can be disconnected from the supply line coupled to the input terminal 21. Glow of the LEDs, which can be caused by an inductance or capacity of the supply line or by inductive or capacitive Kopp¬lungen the operating device 10 can be reduced.
    FIGS. 3 and 4 show an input voltage 51 of the LED module and a current intensity 55, 65 through the light-emitting diode (s) for an LED module according to exemplary embodiments. In addition, the operating device 10 provides a voltage for operation of the LED module 20 from a time 58, so that the input voltage 51 of the LED module increases. The LED module 20 is coupled to the power supply at time 58. The voltage value 52 may be so high that it may damage the LED (s) of the LED module 20.
    Fig. 3 illustrates the current 56 through the light emitting diode (s) of the LED module 20 according to one embodiment. The controllable switching means 31 is controlled so that the anode of a light-emitting diode 25 is not electrically connected to the input terminal 21 until the input voltage 51 has a permissible voltage value 53. The controllable switching means 51 may be switched to an off state until a predetermined time 59 has elapsed from the time 58 at which the operating device 10 provides the voltage until another time 59. Alternatively, the controllable switching means 31 can be switched depending on a threshold value comparison of the input voltage 51 in the on state, for example, when the input voltage 51 corresponds to a forward voltage 53 of the route of light emitting diodes. The current intensity 55 of the current flowing through the light-emitting diodes increases when the controllable switching means 31 is switched to the on state at the time 59. Due to the selective coupling of the light-emitting diode (s) of the LED module base from the time 59, an effective limitation of the current value to a value 56 takes place. An overvoltage can be broken down between the times 58 and 59, for example via a load of the control circuit 32.
    Fig. 4 illustrates the current 65 through the LEDs for an LED module, in which the controllable switching means 31 does not completely interrupt the flow of current from the input terminal 21 through the LED module (s) of the LED module. The controllable switching means acts as a current limiter, which limits a current intensity of the current flowing through the light-emitting diode (s) to a value 66 until the supply voltage has dropped to the forward voltage 53.
    To suppress glare of the light emitting diode (s) of the LED module 20, the input voltage of the LED module 20 can be compared with a further threshold value 54. If the input voltage falls below the further threshold value 54, a standby mode is present , The controllable switching means can be controlled such that the light-emitting diode (s) are decoupled from the input terminal 21 of the LED module 20 when the input voltage is less than the further threshold value 54.
    Additionally or alternatively to overcurrent limiting and glow suppression, the controllable switching means 31 may also be switched to transmit data from the LED module 20 to the operating device 10 via the LED 20 power supply line. By controlling the switching means, the data can be modulated onto signals in the supply lines. The data may indicate to the operating device 10 parameters of the LED module 20. For example, the data may indicate a permissible input voltage of the LED module, an allowable input current of the operating device, and / or other parameters of the LED module. The data may also include sensor values of a sensor mounted on the LED module, for example temperature values which are detected by a temperature sensor of the LED module. The operating device can adjust the supply of the LED module depending on the transmitted data.
    FIG. 5 is an illustration of a luminaire with the operating device 10 and the LED module 20. The LED module 20 can be designed as described with reference to FIGS. 1 to 4. The control circuit 32 integrated in the LED module 20 may be configured to switch the controllable switching means 31 for data transmission. The control circuit 32 may be arranged to control the controllable switching means 31 in response to data to be transmitted when the operating device 10 requests such data transmission. For this purpose, the control circuit 32 can detect, depending on the input voltage of the LED module 20, whether a sequence of switching operations for data transmission is to be initiated.
    The operating device 10 may be an LED converter. The operating device 10 may comprise a converter. The operating device 10 may include a primary side 15 and one of them electrically isolated secondary side 16, wherein the secondary side, for example, as SELV ("SA¬Fety extra-low voltage") - range of the operating device 10 may be configured. The operation of the converter can be controlled or regulated by a control device 17 on the primary side 15 of the operating device 10. The control device 17 may be configured as a semiconductor circuit and may comprise, for example, a controller or microcontroller.
    An evaluation circuit 18 on the secondary side 16 of the operating device 10 is coupled to the output terminals 11,12 of the operating device 10 and detects the transmitted data from the LED module 10 via the supply lines. For this purpose, the evaluation circuit 18 can be set up to recognize the signals modulated by the LED module. The data transfer from the LED module 10 to the operating device 10 may be analog or digital. The evaluation circuit 18 can provide the transmitted data to the control device 17 via a galvanic isolation 14. The controller 17 may control the operation of the converter depending on the transmitted data. For example, control of the output current or the output voltage may be dependent on the data transmitted via the supply line.
    FIG. 6 is a flowchart of a method 70 according to one embodiment. The method 70 may be performed automatically by an LED module according to one embodiment.
    At step 71 it is checked whether data should be transmitted via the supply line from the LED module 20 to the operating device 10. For this purpose, an input voltage of the LED module 20 can be monitored. The operating device 10 may request a data transmission, for example by providing a specific input voltage of the LED module 20.
    If data transmission is to take place, the controllable switching means 31 is switched at step 72. A sequence of switching operations may be performed, depending on the data to be transmitted. The data may include information about the LED module. The switching of the controllable switching means 31 can take place in such a way that a signal is modulated onto the supply line. The data can be transmitted analog or digital.
    In the subsequent operation of the LED module, the controllable switching means 31 can be optio¬nal controlled to achieve an overcurrent limiting and / or suppression of Glim¬men. In step 73, an input voltage of the LED module can be monitored for this purpose. At step 74, depending on the input voltage, it may be determined whether the light emitting diode (s) of the LED module 20 should be disconnected from the input terminal 21. For this purpose, the input voltage can be compared with a threshold value in order to carry out overcurrent limiting at a high input voltage. Alternatively or in addition, the input voltage can be compared with a further threshold value in order to suppress a glimmer of the light-emitting diodes at a low input voltage. For overcurrent limiting and / or for suppressing glowing of the light-emitting diodes, the controllable switching means can be switched to the off state at step 75.
    While LED modules and methods of embodiments have been described in detail with reference to the figures, modifications may be made in other Ausfüh¬rungsbeispielen. For example, while embodiments have been described in detail, in which the controllable switching means may interrupt a current flow between an input terminal of the LED module and an anode of a light emitting diode, in other embodiments, a resistance between the input terminal and the anode of a light emitting diode may be increased in another way to an overcurrent ¬ limit to realize and / or to suppress a glow of the LEDs. The LED module does not have to be designed in such a way that, by controlling the switching means, both an overcurrent limit is realized and also a glimmer of the LEDs in the standby mode is suppressed. The controllable switching means may also comprise a plurality of controllable switches, for example a plurality of power switches. Different controllable switches can be controlled in order, on the one hand, to realize overcurrent limiting and, on the other hand, to suppress a glimmering of the LEDs in standby mode.
    LED modules and methods according to embodiments may be used in particular for driving lights comprising LEDs, without being limited thereto.
    权利要求:
    Claims (15)
    [1]
    Claims 1. An LED module comprising: at least one light emitting diode (25, 26), an input terminal (21) for coupling the LED module (20) with an operating device (10) and a controllable switching means (31) connected to the input terminal (21) and the at least one light emitting diode (25, 26) is coupled.
    [2]
    2. LED module according to claim 1, wherein the controllable switching means (31) is adapted to increase a resistance of a connection between the input terminal (21) and the at least one light-emitting diode (25, 26).
    [3]
    3. LED module according to claim 2, wherein the controllable switching means (31) between the input terminal (21) and an anode of a light emitting diode (25) is connected.
    [4]
    4. LED module according to one of the preceding claims, wherein the LED module (20) is arranged so that the controllable switching means (31) has a electrically conductive connection between the input terminal (21) and the at least one light emitting diode (25, 26) an input voltage of the LED module (20) interrupts.
    [5]
    5. LED module according to claim 4, wherein the LED module (20) is arranged so that the controllable switching means (31) interrupts the electrically conductive connection between the input terminal (21) and the at least one light-emitting diode (25, 26), if Input voltage of the LED module (20) is greater than a threshold (53).
    [6]
    6. LED module according to claim 4 or claim 5, wherein the LED module (20) is arranged so that the controllable switching means (31) the electrically conductive connection between the input terminal (21) and the at least one light-emitting diode (25, 26) for a predetermined time interval interrupts.
    [7]
    7. LED module according to one of the preceding claims, wherein the LED module (20) is ein¬ set to at least ei¬ by interrupting an electrically conductive connection between the input terminal (21) and the at least one light emitting diode (25, 26) ne LED (25, 26) to protect against overvoltage or overcurrent.
    [8]
    8. LED module according to one of the preceding claims, wherein the LED module (20) is arranged so that the controllable switching means (31) has a electrically conductive connection between the input terminal (21) and the at least one light-emitting diode (25, 26) in one Standby mode interrupts.
    [9]
    9. LED module according to claim 8, wherein the LED module (20) is arranged so that the controllable switching means (31) interrupts the electrically conductive connection between the input terminal (21) and the at least one light emitting diode (25, 26), if a Input voltage of the LED module (20) is smaller than another threshold (54).
    [10]
    10. LED module according to one of the preceding claims, comprising a control circuit (32) for controlling the controllable switching means (31).
    [11]
    11. LED module according to claim 10, wherein the control circuit (32) is adapted to switch the controllable switching means (31) dependent on data to be transmitted to the data to be transmitted via a supply line of the LED module (20) of the LED module (20) to the operating device (10) to transmit.
    [12]
    12. LED module according to claim 10 or claim 11, wherein the control circuit (32) is arranged to switch the controllable switching means (31) depending on an input voltage of the LED module (20).
    [13]
    13. luminaire, comprising: an operating device (10), in particular an LED converter, and an LED module (20) according to one of the preceding claims, whose input terminal (21) via a supply line to the operating device (10) is connected.
    [14]
    14. A luminaire as claimed in claim 13, wherein the operating device (10) has an output terminal (11, 12) and an evaluation circuit (18) coupled to the output terminal and arranged to be transmitted from the LED module (20) via the supply line Read data.
    [15]
    A method of operating an LED module (20) having an input terminal (21) and at least one light emitting diode (25, 26), the method comprising: switching at least one controllable switching means (31) of the LED module (20), which is coupled to the input terminal (21) and the at least one light-emitting diode (25, 26). For this 3 sheets of drawings
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    同族专利:
    公开号 | 公开日
    WO2014113827A1|2014-07-31|
    EP2949185B1|2017-06-21|
    EP2949185A1|2015-12-02|
    引用文献:
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    法律状态:
    2018-09-15| MM01| Lapse because of not paying annual fees|Effective date: 20180131 |
    优先权:
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    DE102013201059|2013-01-23|
    PCT/AT2014/000013|WO2014113827A1|2013-01-23|2014-01-20|Led module, lamp and method for operating a led module|
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