EP3527043A1 - Led-beleuchtungsvorrichtung, insbesondere für fahrzeuge - Google Patents
Led-beleuchtungsvorrichtung, insbesondere für fahrzeugeInfo
- Publication number
- EP3527043A1 EP3527043A1 EP17787373.4A EP17787373A EP3527043A1 EP 3527043 A1 EP3527043 A1 EP 3527043A1 EP 17787373 A EP17787373 A EP 17787373A EP 3527043 A1 EP3527043 A1 EP 3527043A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- led
- transistor
- led chain
- chain
- diode
- 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
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]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
- H05B45/46—Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
-
- 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]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
-
- 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]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
- H05B45/52—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits in a parallel array of LEDs
Definitions
- LED lighting device in particular for vehicles
- the present patent application takes over the priorities of German patent applications 10 2016 119 584.7 of 13 October 2016, 10 2017 123 260.5 of 6 October 2017, 10 2017 123 259.1 of 6 October 2017 and the PCT application PCT / EP2017 / 055286 of 7 March 2017, the contents of which are hereby incorporated by reference into the subject matter of the present patent application.
- the invention relates to an LED lighting device, in particular for vehicles.
- the invention relates to devices and methods for supplying LED chains with electrical energy with the possibility of single LED short circuit detection.
- LED lighting devices for vehicles have been part of the state of the art for several years. LED bulbs are preferred due to their lifetime and susceptibility to filament bulbs.
- LED lighting devices for vehicles sometimes so-called LED chains are used, which are series circuits of multiple LEDs.
- so-called multi-channel power supply units are known as ICs, which have per channel failure monitoring in the form of, for example, a current or voltage detector. While a current interruption by the LED chain as well as a total short circuit of the LED chain by the detector can be detected quite easily, the detection of LED single shorts causes problems. This is due to the fact that the voltage drop across an LED chain in normal operation is unfortunately not constant and in particular depends on the age of the LEDs, their temperature, etc. A slightly changing voltage drop, as occurs, for example, in the case of a single LED short circuit, can therefore undoubtedly not be detected as a short circuit.
- Devices for operating LED chains ie LED series circuits, are known from DE-A-10 2008 037 551, DE-A-10 2009 028 101, AT-U-005 190, US-A-2008/0204029 and WO A-2012/077013 known.
- the invention relates to a device for supplying at least two LED chains Li, L 2 , L 3 with electrical energy, in which the failure of individual LEDs within the LED chains by an LED short circuit, hereinafter denoted by the reference symbol SC, represents an error to be detected.
- SC LED short circuit
- integrated circuits that serve to power such LED strings have the capability of detecting and subsequently signaling an interruption of the current path within one of these LED strings Li, L 2 , L 3 . The detection of single LED short circuits is not possible in the prior art.
- a method for detecting a short-circuit in a first light emitting diode element in which the first light emitting diode element is operated within the scope of a special measurement in the stopband, it is checked whether an electric current in the reverse direction over the first light-emitting diode element flows, and the short-circuit is detected, if the check shows that the current flows in the reverse direction and is greater than a predetermined leakage current.
- Such a methodology is unsuitable for short circuit detection in an LED string.
- the invention is therefore based on the object to provide a solution which does not have the above disadvantages of the prior art and has further advantages.
- the invention proposes a lighting device, in particular for vehicles, which is provided with
- each LED chain having a series connection of a plurality of LEDs, a multi-channel power supply unit for the at least two LED chains with at least two power sources, each LED chain assigned a power source and each LED chain is electrically connected on the one hand to a power supply output terminal of the power supply unit and on the other hand to a reference potential, and
- a monitoring device for detecting a short circuit in a predeterminable number of LEDs of one of the at least two LED chains, wherein the monitoring device is provided with
- At least one coupling component arrangement connected between the control terminals of the at least two breaker switches for enabling a current flow from the control terminal of one breaker switch to the control terminal of the other breaker switch, when a voltage is applied across the coupling component arrangement that is greater in magnitude than a predeterminable switching voltage
- Essential feature of the invention is to couple each two LED chains of a LED lighting device together and each LED chain with to provide a breaker switch.
- the controllable breaker switches are coupled together by a coupling component arrangement. If the voltage difference between the control terminals of the breaker switch of the two LED chains exceeds a predetermined value, which depending on the specification or desire in the case of a single LED short circuit or a short circuit of a predetermined comparatively small number of LEDs in one of the LED chains Case is, this disturbance and the associated reduction of the voltage across the "faulty" LED chain affects a change in the voltage across the coupling component assembly so that it becomes conductive and thus activates the breaker switch of the other LED chain, so that the breaker circuit opens this other LED string, which in turn can be reliably detected by the detector associated with that other LED string.
- an implementation of a single LED short circuit or a short circuit of two or fewer LEDs in one of the LED chains takes place in an interruption of the other LED chain.
- the driver for this other LED chain is, as stated above, provided with a corresponding error detector, which detects the interruption of the LED chain.
- only a few electronic components are required in order to implement the invention, as it were, as an "add on" to a power or generally expressed power supply unit for a multi-channel LED lighting device.
- the coupling component arrangement enables a current flow only at a predeterminable sign of the voltage dropping across it or, depending on the sign of the voltage dropping across it, enables a current flow in one or in the opposite other direction.
- the coupling component assembly comprises one or more diodes, which may be connected in anti-parallel to allow a current flow in both directions.
- the monitoring device has more than two LED chains one of the number of LED chains equivalent number of coupling component arrangement, wherein the drive terminals of the LED chains associated breaker switch cyclically by means of a respective coupling component assembly and thus coupled as ring interconnection.
- each coupling component allows a flow of the same direction through the ring circuit.
- the monitoring device UWE has more than two LED chains one of the number of LED chains equivalent number of coupling component arrangements, wherein the control terminals of the LED chains associated breaker switches by means of the coupling component assemblies (KBA) in a star connection are coupled.
- KBA coupling component assemblies
- each coupling component arrangement allows unidirectional current flows.
- the breaker switches are designed as bipolar, FET or MOS transistors.
- the invention relates to the power supply for electroluminescent light sources, which is designed as a circuit arrangement not for a particular application. However, it is particularly suitable for use in automotive lights. It is therefore broadly a monitoring device for arrangements of signal or illumination devices or arrangements of optical signal or illumination devices or arrangements of illumination devices for the vehicle interior or of arrangements or special design of portable emergency signal devices on vehicles.
- the invention thus relates to a device for supplying at least two LED chains Li, L 2 , L 3 with electrical energy, in which the failure of individual LEDs within the LED chains by an LED short circuit, hereinafter referred to by the reference SC represents an error to be detected.
- an LED short circuit hereinafter referred to by the reference SC represents an error to be detected.
- integrated circuits that serve to power such LED strings have the capability of detecting and subsequently signaling an interruption of the current path within one of these LED strings Li, L 2 , L 3 .
- the detection of single LED short circuits is not possible in the prior art.
- a method for detecting a short circuit in a first light emitting diode element in which the first light emitting diode element is operated within a special measurement in the blocking area, it is checked whether an electric current in the reverse direction over the first Light emitting diode element flows, and the short circuit is detected, if the check shows that the current flows in the reverse direction and is greater than a predetermined leakage current.
- Such a methodology is unsuitable for short circuit detection in an LED string.
- the object of the invention is therefore to provide a solution which does not have the above disadvantages of the prior art and has further advantages. It is the basic idea in this disclosure, the already existing detection of interruptions of the current path of an LED chain of at least two LED chains Li, L 2 , L 3 for the detection of a single LED short circuit in another LED chain of at least to use two LED chains Li, L 2 , L 3 .
- a special sub-device is necessary, which is inserted between the power supply, typically a current source ISi, IS 2 , IS 3 within an integrated circuit, and the at least two LED chains Li, L 2 , L 3 and couples them, that a single LED short circuit or a short circuit in some a few (two, three, four) LED's in an LED chain will interrupt current flow to at least one other LED string. Since the integrated circuit has at least in applications for the automotive industry tools to detect an interruption of the current flow in one or more of the connected LED chains Li, L 2 , L3, this is thus able to detect an error and as to spend such.
- a method is therefore proposed for detecting a single LED failure in a lighting device having at least two LED chains Li, L 2 , L 3 .
- a first transistor Ti and first diode Di are used as first detecting means in cooperation with a first resistor Ri, e.g. shown in Fig. 3 are proposed.
- the proposed device for the care ⁇ supply of at least two LED chains Li, L 2, L 3 with electric energy is characterized in that it comprises a dividing device STOC, which in the short-circuit of one or more LEDs within a first LED string at least two LED chains Li, L 2 , L 3 a detection and / or subsequent signaling tion of an interruption of the current path within another LED chain of these at least two LED chains Li, L 2 , L 3 , hereinafter the second LED - Chain, brought about.
- the prerequisite is that the proposed device has measuring means MIi, MUi, MI 2 , MU 2 , MI 3 , MU 3 for detecting an interruption of an LED chain and suitable signaling means to be able to pass on the detection result to a control device ,
- the particular advantage lies in the conversion of the appearance of a single LED short circuit in an LED chain interruption, which is detectable by the integrated circuit (the device).
- a further embodiment of the proposed device is now characterized by the fact that in each current path of each LED chain of these at least two LED chains Li, L 2 , L 3 each have a transistor Ti, T 2 , T 3 .
- This is preferably a bipolar transistor.
- each transistor Ti, T 2 , T 3 part of the sub-device. In error-free operation is every transistor
- At least one transistor Ti, T 2 , T 3 of the second LED chain of the at least two LED chains Li, L 2 , L 3 , hereinafter referred to as the second transistor is turned off, if in a first LED chain of mindes ⁇ least two LED chains Li, L 2 , L 3 a short circuit SC occurs along the LED chain.
- This design has the advantage that it is very compact and can be realized with we ⁇ nigen components.
- a further embodiment of the proposed device is now characterized by the fact that it, at least one transistor of the first LED chain of at least two LED chains Li, L 2, L3 hereinafter referred to as the first transistor, a bipolar transistor T, T 2 , T 2 and that at least the second transistor of the second LED chain of the at least two LED chains Li, L 2 , L 3 is also a bipolar transistor Ti, T 2 , T 2 .
- the base of the first transistor with the base of the second transistor via at least one diode Di, D 2 , D 3 , Dii, Di 2 , D 2 i, D 22 , D3i, D 32 directly or indirectly, in particular via a resistor R v i, R v2 , connected.
- the base of the first transistor is so energized by means of an operating point setting to safely turn on the transistor during normal operation. It is particularly advantageous if this operating point setting takes place via an operating point resistor Ri, R 2 , R 3 , which connects the control connection (the base or the gate) of the first transistor with the energy source ISi, IS 2 , IS 3 of the first LED chain, in whose current path the first transistor is connected.
- the advantage of this arrangement is that the first transistor is conductive in normal operation and the base current can be sucked in case of failure by the base-emitter diode of the corresponding transistor of the other LED chain in a single LED short circuit, causing the first transistor to lock begins. Since MOS transistors are not current-controlled for the first and secondly do not have the necessary base-emitter diode, which performs the actual LED short-circuit detection, when using MOS transistors, the detection function for the single LED short circuit and the interruption function for the interruption of the current flow are separated by the LED string. The detection function is perceived by a separate detection device. This can be, for example, a separate PN diode, an auxiliary diode.
- This auxiliary diode di, d 2 , d 3 is necessary as a detection device when instead of a bipolar transistor as a transistor Ti, T 2 , T 3, a MOS transistor is used.
- the relevant auxiliary diode is then connected between the gate of the MOS transistor as second accounts Ki 2 , K 22 , K 23 of the relevant LED chain and the connection knots Ki3, K 2 3, K 3 3) connected between MOS transistor Ti, T 2 , T 3 and the relevant LED chain.
- the polarity of the auxiliary diode di, d 2 , d 3 is chosen according to the transistor type in the interconnection.
- the auxiliary diode di, d 2 , d 3 of the relevant LED chain then emulates the function of the base-emitter diode of a bipolar transistor as a detection device and forces the potential of a transistor of another channel to a potential at the gate-source path no longer has sufficient voltage, causing it to lock when a single or multiple LEDs short out along the LED string in question.
- MOS transistors so the functions detection device (first auxiliary diode) and interruption device (transistor) are separated, while in bipolar transistors through the bipolar transistors at the same time (transistor alone) can be performed.
- auxiliary diode di, d 2 , d 3 is not mandatory.
- the design with auxiliary diodes and MOS transistors is therefore particularly advantageous, because it enables complete integration into integrated CMOS circuits within the framework of standard CMOS processes.
- a further embodiment of the proposed device is characterized by the fact that the device links several LED chains together. In this case, the device now comprises at least three LED chains Li, L 2 , L 3 .
- the embodiment of the device is concerned with a special topology of the interconnection of the short-circuit to interrupt converter StOC.
- each current path of each LED chain of these at least three LED chains Li, L 2 , L 3 is in each case a transistor Ti, T 2 , T 3 , in particular a bipolar transistor.
- Each transistor Ti, T 2 , T 3 is again part of the sub-device.
- Each transistor Ti, T 2 , T 3 is again connected so that it is conductive in error-free operation.
- at least one of the transistors Ti, T 2 , T 3 of the LED chains is always blocked, which are not affected by the short circuit. This happens if in at least one other LED chain of the at least three LED chains Li, L 2 , L 3 , not the LED Chain of the blocking transistor is connected, a short circuit occurs along the LED chain.
- the control terminal (base or gate) of each transistor of a preceding LED chain is here to the control terminal (base or gate) of the subsequent transistor via at least one diode Di, D2, D3, Dii, Di2, D2i, D22, D3i D32 directly or indirectly, in particular via a resistor v i, R V 2, R V 3, connected.
- the words "previous” and “nachfol ⁇ quietly” refer here to a virtual ireieriana the m LED chain of 1 to m. In this case, the LED chain follows the LED chain with the lower number and precedes the one with the higher number.
- the first LED chain is to be understood here as the successor of the mth LED chain and the mth LED chain as the preceding of the first LED chain.
- the control terminal (base or gate) of the preceding transistor is energized by means of an operating point setting. Particularly preferred is the control terminal (base or gate) of the preceding transistor via an operating point resistor Ri, R. 2 , R.3 is connected to the energy source ISi, IS 2 , IS 3 of the associated LED chain, in the current path of which the preceding transistor is located.
- the control terminal (base or gate) of the subsequent transistor is connected to a terminal of the following LED chain to which it is connected via an associated subsequent auxiliary diode.
- the control terminal (base or gate) of the preceding transistor is connected to a terminal of the preceding LED string to which it is connected via an associated preceding auxiliary diode.
- the special feature of this embodiment of the device is that the diodes are connected so that they allow a circular current flow through the diodes. The channels are thus interconnected in a circle.
- a further embodiment of the proposed device is characterized in that the device also has at least three LED chains Li, L 2 , L 3 and instead of ringförm ig, as described above now star-shaped diodes are to be connected together.
- the device also has at least three LED chains Li, L 2 , L 3 and instead of ringförm ig, as described above now star-shaped diodes are to be connected together.
- a respective transistor Ti, T 2 , T 3 in particular a bipolar transistor or MOS transistor with a control connection (base or gate).
- base or gate base or gate
- each transistor of a preceding LED chain is now connected to the control terminal (base or gate) of the following transistor via at least two series-connected diode pairs Dn, Di 2 ; D 2 i, D 22 ; D 3 i, D 32 each consisting of two diodes Dn, Di 2 connected in antiparallel; D 2 i, D 22 ; D 3 i, D 32 connected.
- the diodes have two connections.
- Each diode can be connected in series with a resistor.
- the control terminal (base or gate) of the transistor vorausge ⁇ Henden is energized by means of a Hä particularinstel lung. Loading Sonders preferably these Bestrom carried ung in such a way that the Steueran ⁇ circuit (base or gate) of the preceding transistor via a working ⁇ spot resistance Ri, R 2, R 3 with the power source ISi, IS 2, IS 3 of the associated LED - Chain, in whose current path is the preceding transistor is connected.
- the control terminal (base or gate) of the subsequent transistor is connected to a terminal of the following LED chain, with which it is connected, via an associated subsequent auxiliary diode.
- the control terminal (base or gate) of the preceding transistor m it is a terminal of the preceding LED chain to which it is connected, via an associated previous auxiliary diode.
- the diodes are connected in such a way that they are connected to a connection with a common neutral point (SP).
- SP common neutral point
- Fig. 1 schematically simplifies the basic principle of the proposed technical solution with a short-circuit to interrupt converter StOC
- Fig. 2 shows a simple more concrete embodiment of the proposed solution with NPN bipolar transistors
- FIG. 6 shows a circuit arrangement corresponding to that of FIG. 2, with the difference that the sub-device which forms the short-circuit-to-interrupt converter StOC acts in both directions,
- Fig. 7 shows a circuit arrangement corresponding to that of Fig. 6 with the difference that through series resistors of the diodes a Asym ⁇ geometry of the LED chains can be compensated
- Fig. 8 shows a circuit arrangement corresponding to the circular sequence of several FIGS. 2
- 9 shows a circuit arrangement corresponding to the star-shaped interconnection of several FIGS. 6th
- a first illumination channel CHi comprises the first energy source - here the first current source ISi - the first LED chain Li with the LEDs Ln, Li 2 , .... Li n and first measuring means MIi, MUi.
- the first channel in this example comprises a first current measuring means MIi, which detects the value of the first electric current Ii fed by the energy source into the first LED chain Li.
- a first detector DEi in the form of a first voltage measuring means MUi detects the voltage drop across the first LED chain Li.
- the first channel CHi typically comprises at least one of these first measuring means. So at least the first current measuring means MIi or the first voltage measuring means MUi to detect an interruption of the first LED chain Li can.
- a second illumination channel CH 2 comprises the second energy source - here the second current source IS 2 - the second LED chain L 2 with the LEDs L 2 i, L 22 , ..., L 2n and second measuring means MI 2 , MU 2 .
- the second channel CH 2 in this example comprises a second current measuring means MI 2 , which detects the value of the second electrical current I 2 supplied by the second energy source into the second LED chain L 2 .
- a second voltage measuring means MU 2 detected as a detector DE 2, the voltage drop across the second LED chain L 2 .
- the second channel CH 2 typically comprises at least one of these second measuring means.
- at least the second current measuring means MI 2 or the second voltage measuring means MU 2 (detector D 2 ) in order to be able to detect an interruption of the second LED chain L 2 .
- a monitoring device UWE is arranged, according to the invention, a short circuit of an LED or a few LEDs in one of the LED chains in an interruption of another of the LED chains "convicted", which is detected by the detector associated with this broken LED string.
- the monitoring device UWE thus has a short circuit to Interrupt converter StOC, the one end of the first LED chain Li in normal operation electrically conductive m it the first power source, here the first power source ISi, and one end of the second LED chain L 2 in normal operation electrically conductive m the second energy source, here the second current source IS 2 connects.
- the short-circuit-to-interruption Chung converter STOC evaluates the potential of the third node Ki 3 of the first Be ⁇ leuchtungskanals (CH i) relative to a reference potential - preferably ground - out.
- the short-circuit to interrupt converter StOC interrupts the electrical connection between the second energy source, here the second current source IS 2 , and the second LED chain L 2 .
- the second measuring means, the second voltage measuring means MU 2 and / or the second current measuring means MI 2 , d. H . the second detector DE 2 is able to detect this interruption and cause a corresponding error message.
- the short circuit to interrupt converter StOC acts symmetrically. D. H .
- the short-circuit-to-interrupt converter StOC disconnects the electrical connection between the first power source, the first power source ISi, and the first LED string Li in an analogous manner .
- Fig. 2 shows a simple realization of this principle.
- the first LED chain Li is monitored for single-LED short circuits, while the second LED chain L 2 is used for signaling.
- the structure of the first channel CH i associated with the first LED chain Li is monitored for single-LED short circuits, while the second LED chain L 2 is used for signaling.
- a first transistor Ti (first breaker switch) is in this example an NPN bipolar transistor. This is connected with its collector to a first node Kn of the first channel CHi. This first node Kn of the first channel CHi the first voltage measuring means (MUI first detector DEi) and the first current source ISi are also optionally connected as a first power source ⁇ . In series with the first current source ISi the given ⁇ existing first current measuring means MIi is connected. The order of the first current source ISi and the first current measuring means MIi can be varied. The first node Kn of the first channel CHi is connected to the base of the first transistor Ti by means of a first resistor Ri. As a result, the operating point of the first transistor Ti is set.
- the first resistor Ri energizes the base-emitter diode of the first transistor Ti, which is thereby conductive in the normal state.
- the emitter of the first transistor Ti at Ki 3 is connected to one end of the first LED chain Li. This connection is the third electrical node Ki 3 of the first channel CHi.
- the other end of ⁇ ers th LED string Li is connected to the reference potential, here ground.
- the base of the first transistor Ti forms the second electrical node Ki 2 of the first channel CHi.
- a second transistor T 2 (second breaker switch) is also an NPN bipolar transistor in this example. This is connected with its collector to a second node K 2 i of the second channel CH 2 . With this second node K 2 of the second channel i CH 2 2 (second detector DE 2) and the second current source IS 2 are optionally the second clamping ⁇ voltage measuring means connected MU as the second energy source. In series with the second current source IS 2 , the optionally present second current measuring means MI 2 is connected. The order of second current source IS 2 and second current measuring means MI 2 can be varied. The first accounts K 2 i of the second channel CH2 is connectedness by means of a second resistor R2 to the base of the second transistor T 2 the . H hereby the operating point of the second transistor T 2 is set.
- the second resistor R 2 energizes the base-emitter diode of the second Tran ⁇ sistor (T 2 ), which is thereby conductive in the normal state.
- the Em itter of the second transistor T 2 is connected to egg nem end of the second LED chain L 2 . This connection is the third electrical node K 23 of the second channel CH 2 .
- the other end of the second LED chain L 2 is connected to the reference potential, here with ground.
- the base of the second transistor T 2 forms the second electrical node K 22 of the first channel CH 2 .
- the monitoring device UWE has as a coupling element arrangement KBA connected between the base terminals i 2 , K 2 i of the transistors Ti, T 2 a first diode Di which has the base of the first transistor Ti, ie the second node Ki 2 of the first channel CHi, m it connects the base of the second transistor T 2 , that is the second accounts K 22 of the second channel CH 2 .
- the electrical connection between the second node Ki 2 of the first channel CHi and the second node K 22 of the second channel CH 2 is normally interrupted because of the diode Di, since the voltage drop across the first LED chain Li and the second LED chain L 2 at the same current should be equal and thus no voltage difference across the diode Di, which causes a current flow through the diode Di, drops, whose threshold voltage is not reached. It was initially assumed here by symmetrical conditions. This means of an equal number n of LEDs in the two LED chains and of a same first current I i and egg nem second current I 2 .
- the same electrical potential for the respective third node Ki 3 , K 23 of the first channel CH 1 and I 2 is given the same LED number of the second channel CH 2 .
- the resistance value of the first resistor Ri is set equal to the resistance value of the second resistor R 2
- the base-emitter diode of the first transistor Ti is supplied with the same current as the base-emitter diode of the second transistor T 2 .
- the first transistor Ti has properties that are similar to the characteristics of the second transistor T 2 . Dam it fall over the base-emitter-diode sections have the same base-emitter voltages.
- the current flow through the first LED chain Li remains at the current value of the first current Ii of the first current source
- the potential of the third node Ki 3 of the first channel CHi with respect to the reference potential drops by an LED switching voltage, that is, by the voltage that drops across each of the preferably same LEDs when flowing through the first current Dam it also decreases the amount of the potential of the second node Ki 2 of the first channel CH i against ⁇ over ground by exactly this value, this yes by the forced fixed voltage drop across the base-emitter diode of the first transistor Ti to the potential of the third node Ki 3 of the first channel, so that there is an (increased) voltage difference between the second node K 22 of the second channel CH 2 and the second node Ki 2 of the first one Channel CH i and thus an (increased) voltage difference across the coupling component assembly KBA on.
- This voltage difference is in the flow direction of the first diode Di.
- the switching voltage of the first diode Di should therefore be chosen smaller than or equal to the switching voltages of the LEDs used in the first LED chain Li. Preferably, it is between 5% and 90% lower than the switching voltage of the LEDs.
- the first diode can also be replaced by an electrical circuit of equal effect with amplifiers, etc., which shows a suitable switching voltage.
- this refers to the effect of this component or a circuit replacing this component, ie. H . to any kind of coupling component assembly KBA, which becomes conductive from a predetermined switching voltage.
- the first diode Di opens, the current flowing through the base-emitter diode of the second transistor T 2 flows through the base-emitter diode of the first transistor Ti.
- the second transistor becomes less conductive, as a result of which the potential of the third node K 23 of the second channel CH 2 is lowered.
- the second LED chain L 2 is turned off (T 2 opens).
- the current decrease of the current of the second current source IS 2 decreases, which can be detected by the second measuring means MI 2 , MU 2 (detector DE 2 ). On the basis of this detection, an interruption is then typically detected and, if necessary, signaled.
- the remaining second diode D 2 of the second channel CH 2 is used only to illustrate potential Anreihungshnekeit (coupling each two LED chains in the presence of a plurality of LED chains).
- the potential of the third node Ki 3 of the first channel is CHi n * 3V.
- n 5 for the calculation. It then falls 15 volts over the first LED chain Li between the third node Ki 3 of the first channel and mass.
- 0.7 V should drop across the base-emitter diode of the first transistor Ti.
- the potential of the second node Ki 2 of the first channel CHi is in normal operation at 15.7 V to ground potential.
- the potential of the second node K 22 of the second channel CH 2 in normal operation which is thus also at 15.7 V to ground potential.
- the potential of the second node K 22 of the second channel CH 2 is only 13.4 V instead of 15.7 V.
- the potential of the third node K 23 of the second channel CH 2 are lower by 0.7 V corresponding to the base-emitter voltage of the second transistor T 2 at 12.7 V. Due to the steep characteristic curve of the LEDs in the second LED chain L 2 , the current decrease at the second current source IS 2 thereby decreases. This can be detected by the second measuring means MI 2 , MU 2 (detector DE 2 ). This drop in the second current I 2 can be detected directly by the second current measuring means MI 2 or as a changing voltage drop across the second current source IS 2 by the second voltage measuring means (detector DE 2 ).
- the conditions correspond to an interruption of the second LED chain L 2 and are recognized as such by the second measuring means of the second channel CH 2 .
- Fig. 3 is substantially consistent with Fig. 2.
- the LED chains are "reversed" connected to the supply voltage.
- the supply voltage V bat now serves as a reference potential.
- the first transistor Ti and the second transistor T 2 are now illustrative PN P transistors.
- the first Di diode is also turned to make the functionality work. The operation is otherwise but analogous to that of FIG. 2.
- FIG. 4 corresponds to FIG. 2 with the difference that N-channel MOS transistors are used instead of the N PN bipolar transistors for the first transistor Ti and the second transistor T 2 .
- the dropped base emitter diode In order to couple the second node Ki 2 of the first channel CHi to the third node Ki 3 of the first channel with respect to the voltage difference between these two nodes, the dropped base emitter diode must be replaced in its function. This is done by a first auxiliary diode HDi. Via the first resistor Ri, the current flow is set via the first auxiliary diode H Di, so that it is open in normal operation.
- the first transistor Ti is preferably installed so that the source of the first transistor Ti is connected to the third node Ki 3 of the first channel CHi.
- the Fig. 5 corresponds to FIG. 3 with the difference that P-channel MOS transistors instead of the PN P-bipolar transistors for the first transistor Ti and the second transistor T 2 are used.
- the dropped base emitter diode In order to couple the second node Ki 2 of the first channel CHi to the third node Ki 3 of the first channel with respect to the voltage difference between these two nodes, the dropped base emitter diode must be replaced in its function. This is done by a first auxiliary diode HDi. Via the first resistor Ri, the current flow is set via the first auxiliary diode H Di, so that it is open in normal operation.
- the first transistor Ti is preferably installed so that the source of the first transistor Ti is connected to the third node Ki 3 of the first channel CHi.
- Fig. 6 corresponds to FIG. 2 with the difference that the Kopoppelbauteilanord- KBA has a second diode D 2 , which is connected in anti-parallel to the first diode Di.
- the second channel CH 2 in a single LED short circuit in the second LED chain L 2, the current flow in the first channel Interrupt CHi, causing detection of an LED chain break on the first CHi channel.
- FIG. 7 corresponds to FIG. 6 with the difference that the first diode Di and the second diode D 2 of the coupling component arrangement KBA are each provided with a series resistor R v i, v2.
- These series resistors enable the asymmetrization of the circuit. This is particularly necessary if the LED chains are not the same or the rated currents Ii, I 2 are already uneven in normal operation.
- the possibility of replacing the first diode Di and / or the second diode D 2 by more complex circuits having the same effect has already been pointed out above. In reality, it may be useful if the first diode Di has a different switching voltage than the second diode D 2 .
- Fig. 8 corresponds to two Fign.
- the coupling component assembly KBA has three diodes Di, D 2 , D 3 , the triangular, ie. are connected as a ring circuit, so that a circular current flow - via the first diode Di then via the second diode D 2 then via the third diode D 3 and then again via the first diode Di - would be possible.
- the principle can be based on a positive integer k of
- Channels CHi to CH k are extended accordingly. As a result, all LED chains of any number k of LED chains are monitored for single LED short circuits.
- 9 shows a coupling component arrangement KBA for the star-shaped interconnection of three channels for three LED chains Li, L 2 , L 3 . Each two of the channels correspond to the interconnection according to FIG. 6 with the difference that the first diode Di and the second diode D 2 of FIG. 6 are now formed by four diodes each (eg Dn, Di 2 and D 2 i and D 22 ) become.
- the invention can be described by one of the following feature groups: the feature groups can be combined with one another and also individual features of a feature group can be combined with one or more features of one or more other feature groups and / or one or more of the previously described embodiments are.
- each transistor Ti, T 2 , T 3 in particular a bipolar transistor or a MOS transistor with a control connection (Basis or gate) and two other terminals, each transistor Ti, T 2 , T 3 part of the sub-device and wherein each transistor Ti, T 2 , T 3 is conductive in error-free operation and wherein at least one transistor Ti, T 2 T 3 of the second LED chain of the at least two LED chains Li, L 2 , L 3 , hereinafter referred to as the second transistor is turned off, if in a first LED chain of at least two LED chains Li, L 2 , L 3rd a short circuit (SC) occurs along the LED chain.
- SC short circuit
- a bipolar transistor Ti, T 2 , T 2 or a MOS transistor Ti , T 2 , T 2 acts and
- control terminal (base or gate) of the first transistor is energized by means of an operating point setting, in particular that the control terminal (base or gate) of the first transistor via an operating point resistor Ri, R 2 , R 3 with the power source ISi, IS 2 , IS 3rd the first LED chain, in whose current path the first transistor is connected,
- control terminal (base or gate) of the first transistor is connected to a terminal of the first LED chain via a first auxiliary diode
- control terminal (base or gate) of the second transistor is connected to a terminal of the second LED chain via a second auxiliary diode.
- the device has at least three LED chains Li, L 2 , L 3 and wherein in each current path of each LED chain of these at least three LED chains Li, L 2 , L 3 are each a transistor Ti, T 2 , T 3 ), in particular a bipolar transistor is located,
- each transistor Ti, T 2 , T 3 part of the sub-device and wherein each transistor Ti, T 2 , T 3 is conducting in error-free operation and wherein always at least one of these transistors Ti, T 2 , T 3 , hereinafter the blocking to called switching transistor, is turned off, if in at least one other LED chain of the at least three LED chains Li, L 2 , L 3 , which is not the LED chain of the transistor to be turned off, a short circuit along the other LED Chain occurs, and
- control connection (base or gate) of each transistor of a preceding LED chain with the control connection (base or gate) of the following transistor of a subsequent LED chain via at least one diode Di, D 2 , D 3 , Dn, Di 2 , D 2 i, D 22 , D 3 i, D 32 is connected directly or indirectly, in particular via a resistor R v i, R v2 , R V 3, and ⁇
- control terminal (base or gate) of the preceding transistor is energized by means of an operating point setting, in particular that the control terminal (the base or the gate) of the preceding transistor via an operating point resistor Ri, R 2 , R3 with the power source ISi, IS 2 , IS 3rd the associated LED chain, in the current path is the preceding transistor is connected, and
- control terminal (base or gate) of the subsequent transistor is connected to a terminal of the subsequent LED chain, to which it is connected, via an associated subsequent auxiliary diode and
- the device has at least three LED chains Li, L 2 , L 3 and
- each current path of each LED chain of these three LED chains Li, L 2 , L 3 are each a transistor Ti, T 2 , T 3 , in particular a bipolar transistor or a MOS transistor is located,
- each transistor Ti, T 2 , T 3 part of the sub-device and wherein each transistor Ti, T 2 , T 3 is conducting in error-free operation and wherein always at least one of these transistors Ti, T 2 , T 3 is turned off, if in at least one other LED string of the at least three LED strings Li, L 2 , L 3 , which is not the LED string of the turned off transistor, a short circuit occurs, and wherein the control terminal (base or gate) of each transistor of a preceding LED Chain with the control terminal (base or gate) of the following transistor via at least two serially connected diode pairs Du, Di 2 ; D 2 i, D 22 ; D 3 i, D 32 each consist of two diodes Di, Di 2 connected in antiparallel; D 2 i, D 22 ; D 3 i, D 32 is connected,
- diodes have two terminals and
- each diode may be connected in series with a resistor
- control terminal (base or gate) of the preceding transistor is energized by means of an operating point setting, in particular
- control terminal (base or gate) of the subsequent transistor is connected to a terminal of the subsequent LED chain, to which it is connected, via an associated subsequent auxiliary diode and
- control terminal (base or gate) of the preceding transistor is connected to a terminal of the preceding LED string to which it is connected via an associated preceding auxiliary diode and
- diodes are connected so that they are connected to a terminal with a common neutral point SP.
- Device for supplying at least two LED chains Lu Li 2 , ... Li n ; L 2 i, L 22 , .. L 2n ; L 3 i, L 32 , ... L3n with electrical energy with the possibility of detection and subsequent signaling of an interruption of the current path within one of these at least two LED chains Lu, Li 2 , ... Li n ; L 2 i, L 22 , .. L 2n ; L 3 i, L 32 , ... L3n, wherein it has a partial device StOC, which in the short circuit of one or more LEDs within a first LED chain of the at least two LED chains Lu, Li 2 , ... Li n ; L 2 i, L 22 , ..
- L 2n ; L 3 i, L 32 , ... L3n performs a detection and wherein the sub-device StOC signaling this detected short circuit by interrupting the current path within another LED chain of these at least two LED chains Lu, Li 2 , ... Li n ; L 2 i, L 22 , .. L 2n ; L 3 i, L3 2 , ... L3n in the following the second LED chain, causes.
- each one Transistor Ti, T 2 , T 3 in particular a bipolar transistor or a MOS transistor having a control terminal (base) and two other terminals,
- each transistor Ti, T 2 , T 3 is part of the subdevice and
- each transistor Ti, T 2 , T 3 is conductive in error-free operation and wherein at least one transistor Ti, T 2 T 3 of the second LED chain of the at least two LED chains Ln, Li 2 , ... Li n ; L 2 i, L 22j .. L 2n ; L 3 i , L 32j ... L3n hereinafter referred to as the second transistor is turned off, if in a first LED chain of at least two LED chains Ln, Li 2 , ... Li n ; L 2 i, L 22j .. L 2n ; L 3 i , L 32j ... L3n a short circuit (SC) along the LED
- SC short circuit
- control terminal (base) of the first transistor to the control terminal (base) of the second transistor via at least one diode Di, D 2 , D 3 , Dn, Di 2 , D 2 i, D 22 , D 3 i, D 32 directly or indirectly, in particular via a series resistor R v i, v2 , is connected and wherein the control terminal (base) of the first transistor is energized by means of an operating point setting, in particular that the control terminal (base or gate) of the first transistor via an operating point resistor Ri, R 2nd , R 3 is connected to the power source ISi, IS 2 , IS 3 of the first LED chain, in the current path of which the first transistor is connected.
- the device comprising at least three LED chains Ln, Li 2 , ... Lm; L 2 i, L 22 , .. L 2n ; L 3 i, L 32 , ... Ls n and
- each transistor Ti, T 2 , T 3 is part of the sub-device and wherein each transistor Ti, T 2 , T 3 is conducting in error-free operation and wherein always at least one of these transistors Ti, T 2 , T 3 , hereinafter referred to as the transistor to be turned off, is turned off, if in at least one other LED chain of at least three LED chains Ln, Li 2 , ... Li n ; L 2 i, L 22j .. L 2n ; L 3 i , L 32j ... L3n which is not the LED chain of the transistor to be turned off, a short circuit occurs along the other LED chain, and
- each transistor of a preceding LED chain is connected to the control terminal (base) of the subsequent transistor of a subsequent LED chain via at least one diode Di, D 2 , D 3 , Dn, Di 2 , D 2 i, D 22 , D 3 i, D 32 directly or indirectly, in particular via a resistor R v i, R v2 , Rv3, is connected and
- control terminal (base) of the preceding transistor is energized by means of an operating point setting, in particular that the control terminal (the base or gate) of the preceding transistor via an operating point resistor Ri, R 2 , R3 with the energy source ISi, IS 2 , IS 3 of the associated LED chain, in the current path is the preceding transistor is connected, and
- the device comprising at least three LED chains Ln, Li 2 , ... Lm; L 2 i, L2 2 , .. L 2n ; L 3 i, L 32 , ... Lsn and
- Ln Li 2 , ... Li n ; L 2 i, L 22, .. L 2n ; L 3 i, L 32,... L 3n are each a transistor Ti, T 2 , T 3 , in particular a bipolar transistor or a MOS transistor,
- each transistor Ti, T 2 , T 3 part of the sub-device and wherein each transistor Ti, T 2 , T 3 is conducting in error-free operation and wherein always at least one of these transistors Ti, T 2 , T 3 is turned off, if in at least one other LED chain of the at least three LED chains Ln, Li 2 , ... Li n ; L 2 i, L 22j .. L 2n ; L 3 i, L 32j .. L 3n , which is not the LED string of the latched transistor, a short circuit occurs, and
- diodes have two terminals and
- each diode may be connected in series with a resistor
- control terminal (base) of the preceding transistor is energized by means of an operating point setting, in particular
- the device measuring means MIi, MUi; MI 2 , MU 2 ; MI 3 , MU 3 for detecting the interruption of the second LED chain, and wherein the device comprises suitable signaling means for detecting the detection result of the measuring means MIi, MUi; MI 2 , MU 2 ; MI 3 , MU 3 to be able to signal to a control device.
- Method for detecting a single LED failure in a lighting device with at least two LED chains Li, L 2 , L 3 comprising the steps:
- a first detection means eg first transistor Ti and first diode Di in cooperation with first resistor Ri in FIG. 3
- an interrupting means eg transistor T 2 in FIG. 3
- LED An LED within the meaning of this disclosure is not only a single light-emitting diode but may also be a series and / or parallel connection of several light-emitting diodes, which optionally also includes other components such as, for example, diodes and / or pre- and shunt resistors and capacitors. Typically, these are bipolar circuits with a first terminal serving as a current input and a second terminal serving as a current output. If the LEDs in a LED chain connected in series with each other, it is conceivable that between the LEDs along the LED chain more lines, for example, as a control line for other purposes wholly or partially led along the LED chain, but not claimed here However, if necessary, the claimed scope should not be limited to pure two-pole single LEDs.
- the LED chains are preferably the same length, ie preferably contain the same number of LEDs with preferably the same diode switching voltages (U D ). LED chain
- An LED chain in the sense of this disclosure is a serial connection of at least two LEDs, which are all oriented the same, so that a current flow is possible.
- the switching voltage of a diode, auxiliary diode or LED is the voltage at which the diode, auxiliary diode or LED starts to conduct.
- the switching voltage determines the largest of the voltage drop across the coupling component arrangement in which it switches through. LIST OF REFERENCE NUMBERS
- the first channel comprises the first energy source - here the first current source ISi - the first LED chain l_u, the first transistor Ti, the first resistor Ri, the first diode Di and first measuring means MIi, MUi.
- the first transistor Ti is connected in series with the first LED chain Li at the third node Ki 3 of the first channel and is at the first account Ku of the first channel with the first energy source, here the first current source ISi, and optionally with a first voltage measuring means MUi and the first resistor Ri.
- the first resistor Ri is connected to the third node Ki 3 of the first channel, which establishes the connection to the control terminal of the first transistor Ti and to a first terminal of the first diode Di.
- the first channel may comprise a first current measuring means MIi which detects the value of the first electric current Ii output by the power source.
- the first channel typically comprises at least one of these first measuring means. So at least the first current measuring means MIi or the first voltage measuring means MUi to detect an interruption of the first LED chain Li,
- the second channel comprises the second energy source - here the second current source IS 2 - the second LED chain L 2 , the second transistor T 2 , the second resistor R 2 , the second diode D 2 and second measuring means MI 2 , MU 2 .
- the second transistor T 2 is connected in series with the second LED chain L 2 at the third node K 23 of the second channel and is at the second accounts K 2 i of the second channel with the second power source, here the second power source IS 2 , and given - If necessary, connected to a second voltage measuring means MU 2 and the second resistor R 2 .
- the second resistor R 2 is connected to the second node K 23 of the second channel, which establishes the connection to the control terminal of the second transistor T 2 and to a second terminal of the second diode D 2 .
- This second diode is then connected with its second terminal to the corresponding control terminal of the transistor of a subsequent channel.
- the third account K 23 of the second channel also establishes a connection to the second terminal of the diode of the subsequent channel or of a preceding channel.
- the second channel may include a second current measuring means MI 2 which detects the value of the second electrical current I 2 output by the power source.
- the second channel typically comprises at least one of these second measuring means. So at least the second current measuring means (MI 2 ) or the second voltage measuring means MU 2 in order to detect an interruption of the second LED chain L 2 ,
- the third channel comprises the third energy source - here the third current source IS 3 - the third LED chain L 3 , the third transistor T 3 , the third resistor R 3 , the third diode D 3 and third measuring means MI 3 , MU 3 .
- the third transistor T 3 is connected in series with the third LED chain L 3 at the third node K 33 of the third channel and is at the first node K 3 i of the third channel with the third energy source, here the third current source IS 3 , and optionally connected to a third voltage measuring means MU 3 and the third resistor R 3 .
- the third resistor R 3 is connected to the third node K 33 of the third channel, which establishes the connection to the control terminal of the third transistor T 3 and to a first terminal of the third diode D 3 .
- This third diode is then connected with its second terminal to the corresponding control terminal of the transistor of a subsequent channel.
- the third channel may include a third current measuring means MI 3 which detects the value of the third electrical current I 3 output by the power source.
- the third channel typically comprises at least one of these third measuring means.
- at least the third current measuring means MI 3 or the third voltage measuring means MU 3 in order to detect an interruption of the third LED chain L 3 ,
- Diode Switching Voltage (This is the diode voltage at which current flow begins.)
- the first auxiliary diode is necessary as a detection device when a MOS transistor is used as the first transistor Ti instead of a bipolar transistor.
- the first auxiliary diode then emulates the function of the base-emitter diode as a detection device and forces the potential of a transistor of another channel to a potential at which the gate-source path no longer has sufficient voltage, causing it to lock as it closes a short circuit of a single or multiple LEDs along the relevant LED chain comes.
- the functions detection device (first auxiliary diode) and interruption device (first transistor Ti) are separated, while in bipolar transistors through the bipolar transistors at the same time (first transistor Ti alone) can be performed.
- the first auxiliary diode HDi is not absolutely necessary.
- the second auxiliary diode is necessary as a detection device when instead of a bipolar transistor as a second transistor T 2, a MOS transistor is used.
- the second auxiliary diode then emulates the function of the base-emitter diode as a detection device and forces the potential of a transistor of another channel to a potential at which the gate-source path no longer has sufficient voltage, causing it to lock as it closes a short circuit of a single or multiple LEDs along the relevant LED chain comes.
- MOS transistors so the functions detection device (second auxiliary diode) and interrupt device (second transistor T 2 ) are separated, while they can be performed in bipolar transistors by the bipolar transistors simultaneously (second transistor T 2 alone).
- the second auxiliary diode is not mandatory.
- the third auxiliary diode is necessary as a detection device when, instead of a bipolar transistor as the third transistor T 3, a MOS transistor is used.
- the third auxiliary diode then emulates the function of the base-emitter diode as a detection device and forces the potential of a transistor of another channel to a potential at which the gate-source path no longer has sufficient voltage, causing it to lock as it closes a short circuit of a single or multiple LEDs along the relevant LED chain comes.
- the functions detection device (third auxiliary diode) and interrupt device (third transistor T 3 ) are separated, while they can be performed in bipolar transistors by the bipolar transistors simultaneously (third transistor Ti alone).
- the third auxiliary diode is not mandatory.
- first electric current which is fed from the first energy source - here the first current source ISi in the first LED chain l_n and supplies them with electrical energy.
- first power source as the first power source of the first channel CHi second power source as the second power source of the second channel CH 2 third power source as the third power source of the third channel CHi 3 first node of the first channel CHi.
- the first node of the first channel CHi connects the first energy source, here the first current source ISi, with the first transistor Ti and the first resistor Ri, and a first voltage measuring means MUi for detecting the voltage drop across the first energy source, here the first current source IS L
- the second node of the first channel CHi connects the control terminal of the first transistor Ti to the first resistor Ri and the first diode Di.
- the terminal of the first diode Di is the cathode thereof (FIG ).
- the anode In the case of a PNP bipolar transistor as the first transistor Ti, this is the anode (FIG. 3).
- MOS transistor can the second node of the first channel CHi also be connected to a first auxiliary diode HDi which is connected to the third node Ki 3 of the first channel CHi and whose orientation also depends on the transistor type of the first transistor Ti,
- the third node of the first channel CHi connects the first transistor Ti to a first terminal of the first LED chain U. If necessary, it also connects them to the second terminal of a first auxiliary diode HDi. This is helpful in particular when the first transistor Ti is a MOS transistor.
- the orientation of the first auxiliary diode HDi then depends again on the transistor type (P-channel MOS transistor or N-channel MOS transistor) of the first transistor Ti.
- First node of the second channel CH 2 First node of the second channel CH 2 .
- the first node of the second channel CH 2 connects the second energy source, here the second current source IS 2 , with the second transistor T 2 and the second resistor R 2 , and a second voltage measuring means MU 2 for detecting the voltage drop across the second energy source, here the second current source IS 2 .
- the second node of the second channel CH 2 connects the control terminal of the second transistor T 2 to the second resistor R 2 and the second diode D 2 .
- the terminal of the second diode D 2 is the cathode thereof.
- the second node of the second channel CH 2 may also be connected to a second auxiliary diode HD 2 , which is connected to the third accounts K 23 of the second channel CH 2 and whose Orientation also depends on the transistor type of the second transistor T 2 , third node of the second channel CH 2 .
- the third node of the second channel CH 2 connects the second transistor T 2 to a first terminal of the second LED chain L 2 . If necessary, he also associates if this with the second terminal of a second auxiliary diode HD 2 . This is helpful in particular when the second transistor T 2 is a NEN MOS transistor.
- the orientation of the second auxiliary diode HD 2 then depends again on the transistor type (P-channel MOS transistor or N-channel MOS transistor) of the second transistor T 2 .
- the first node of the third channel CH 3 connects the third power source, here the third current source IS 3, with the third transistor T 3 a nd the third resistor R3, and a third voltage measuring means MU 3 for detecting the clamping ⁇ voltage drop across the third energy source, here the third current source IS 3 .
- the second node of the third channel CH 3 connects the control terminal of the third transistor T 3 with the third resistor R 3 and the third diode D 3 .
- the terminal of the third diode D 3 is the cathode thereof (FIG. 2).
- this is the anode (FIG. 3).
- the second node of the third channel CH 3 can also be connected to a third auxiliary diode HD 3 , which is connected to the third account K 33 of the third channel CH 3 and their orientation also depends on the transistor type.
- the third node of the third channel CH 3 connects the third transistor T 3 m with a first terminal of the third LED chain Li. If necessary, it also connects them to the second terminal of a third auxiliary diode HD 3 . This is helpful in particular when the third transistor T 3 is a MOS transistor.
- the orientation of the third auxiliary diode HD 3 then again depends on the transistor type (P-channel MOS transistor or N-channel MOS transistor) of the third transistor KBA coupling component arrangement
- MIi first power measuring device This measuring means is used to detect an interruption in the first LED chain Li.
- MI 2 second current measuring means This measuring means is used to recognize a
- MI 3 third current measuring device This measuring means is used to recognize a
- This measuring means is used to detect an interruption in the first LED chain L.
- This measuring means is used to detect an interruption in the second LED chain (L 2 i, L 22 , .... L 2n ).
- This measuring means is used to detect an interruption in the first LED chain (L 3 i, L 32 , .... L 3n ).
- the first series resistor can, for example, be connected in series with the first diode Di in order to be able to design the switching thresholds between different channels asymmetrically. Then it is necessary that the first series resistor of one other series resistor, for example, deviates from the second series resistor R v2 in Fig. 6.
- the second series resistor can, for example, be connected in series with the second diode D 2 in order to be able to design the switching thresholds between different channels asymmetrically. Then it is necessary for the second series resistor to deviate from another series resistor, for example from the first series resistor R v i in FIG. 6.
- the third series resistor can, for example, be connected in series with the third diode D 3 in order to be able to design the switching thresholds between different channels asymmetrically. Then it is necessary for the first series resistor to deviate from another series resistor, for example from the second series resistor R v2 and / or from the first series resistor R v i,
- Short-to-open converter It is a sub-device, which in the short circuit of one or more LEDs within a considered LED chain, a detection and / or subsequent signaling an interruption of the current path within another LED chain of at least two LED chains Li, L 2 , L 3 brought about.
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102016119584 | 2016-10-13 | ||
| EP2017055286 | 2017-03-07 | ||
| DE102017123260.5A DE102017123260B3 (de) | 2016-10-13 | 2017-10-06 | Vorrichtung zur Versorgung von LED-Ketten mit elektrischer Energie mit Einzel-LED-Kurzschlusserkennung |
| DE102017123259.1A DE102017123259B3 (de) | 2016-10-13 | 2017-10-06 | Verfahren zur Versorgung von LED-Ketten mit elektrischer Energie mit Einzel-LED-Kurzschlusserkennung |
| PCT/EP2017/076106 WO2018069464A1 (de) | 2016-10-13 | 2017-10-12 | Led-beleuchtungsvorrichtung, insbesondere für fahrzeuge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3527043A1 true EP3527043A1 (de) | 2019-08-21 |
| EP3527043B1 EP3527043B1 (de) | 2021-05-26 |
Family
ID=61905193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17787373.4A Active EP3527043B1 (de) | 2016-10-13 | 2017-10-12 | Led-beleuchtungsvorrichtung, insbesondere für fahrzeuge |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US10999909B2 (de) |
| EP (1) | EP3527043B1 (de) |
| CN (1) | CN109845403B (de) |
| WO (1) | WO2018069464A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10841998B1 (en) * | 2019-05-17 | 2020-11-17 | Signify Holding B.V. | Shared power topology for LED luminaires |
| CN114666942B (zh) * | 2020-12-23 | 2024-12-24 | 常州星宇车灯股份有限公司 | 一种控制电路 |
| CN113411932B (zh) * | 2021-05-19 | 2023-11-28 | 深圳拓邦股份有限公司 | 一种恒亮度led电路及电子设备 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT5190B (de) * | 1899-07-19 | 1901-09-10 | Anton Ekert | |
| AT391384B (de) * | 1987-11-02 | 1990-09-25 | Walter Gottlieb Ing Toriser | Elektrischer antrieb mit nutzbremse |
| AT5190U1 (de) | 2001-05-17 | 2002-04-25 | Zizala Lichtsysteme Gmbh | Verfahren zur ansteuerung von zumindest zwei serienanordnungen von leuchtdioden einer fahrzeugleuchte |
| JP2007161012A (ja) | 2005-12-12 | 2007-06-28 | Koito Mfg Co Ltd | 車両用発光装置 |
| JP4457312B2 (ja) | 2006-01-12 | 2010-04-28 | 株式会社デンソー | 車両用ヘッドランプ装置 |
| EP1965609A3 (de) | 2007-02-27 | 2011-06-15 | Lumination, LLC | Erkennung von Kettendefekten mittels LED |
| AT507185B1 (de) * | 2008-08-07 | 2010-06-15 | Zizala Lichtsysteme Gmbh | Funktionsüberwachung einer led-anordnung |
| DE102008047731B4 (de) | 2008-09-18 | 2020-06-04 | HELLA GmbH & Co. KGaA | Verfahren zur Fehlererkennung in einer Beleuchtungsvorrichtung |
| DE102008037551B4 (de) | 2008-11-14 | 2013-04-18 | Lear Corporation Gmbh | Vorrichtung zum Betreiben von Leuchtdiodenketten |
| US8084960B2 (en) * | 2009-12-30 | 2011-12-27 | O2Micro, Inc | Circuits and methods for powering light source with balanced currents |
| WO2012077013A2 (en) | 2010-12-08 | 2012-06-14 | Koninklijke Philips Electronics N.V. | Control circuit for led lamps in automobile applications |
| KR102261255B1 (ko) * | 2013-08-28 | 2021-06-04 | 엘모스 세미컨덕터 에스이 | 적어도 하나의 컨슈머에 전기 에너지를 공급하기 위한 또는 적어도 하나의 컨슈머에 대해 전력을 제공하기 위한 장치 |
| DE102014112171B4 (de) | 2014-08-26 | 2018-01-25 | Osram Oled Gmbh | Verfahren zum Erkennen eines Kurzschlusses in einem ersten Leuchtdiodenelement und optoelektronische Baugruppe |
-
2017
- 2017-10-12 WO PCT/EP2017/076106 patent/WO2018069464A1/de not_active Ceased
- 2017-10-12 CN CN201780063291.0A patent/CN109845403B/zh active Active
- 2017-10-12 EP EP17787373.4A patent/EP3527043B1/de active Active
- 2017-10-12 US US16/340,746 patent/US10999909B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP3527043B1 (de) | 2021-05-26 |
| WO2018069464A1 (de) | 2018-04-19 |
| US10999909B2 (en) | 2021-05-04 |
| US20210014949A1 (en) | 2021-01-14 |
| CN109845403B (zh) | 2021-09-17 |
| CN109845403A (zh) | 2019-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2659735B1 (de) | Signalisierungsvorrichtung und sensorvorrichtung | |
| DE102016214014A1 (de) | Beleuchtungsschaltung und Fahrzeugleuchte, welche diese verwendet | |
| DE102017100879B4 (de) | Elektrische Schaltung und Verfahren zum Betrieb einer elektrischen Schaltung | |
| EP2980660A1 (de) | Verfahren und Vorrichtung zum Überwachen und Schalten eines Lastkreises | |
| DE102011116231A1 (de) | Schaltungsanordnung zur Kurzschlusserkennung bei Dioden, Beleuchtungsanordnung und Verfahren zum Erkennen eines Kurzschlusses bei Dioden | |
| EP3124988B1 (de) | Leuchtdioden-steuerungsschaltung für einen signalgeber einer lichtsignalanlage | |
| DE102014212520A1 (de) | Halbleiteransteuervorrichtung und Halbleitervorrichtung | |
| DE102015008110B4 (de) | Verfahren zur Überwachung mindestens zweier unterschiedlich langer LED-Ketten | |
| EP3527043A1 (de) | Led-beleuchtungsvorrichtung, insbesondere für fahrzeuge | |
| EP1145904B1 (de) | Ansteuervorrichtung für eine mit einer Anzahl von Leuchtioden versehene Leuchte eines Kraftfahrzeuges | |
| DE10131824B4 (de) | Schaltungseinrichtung für die Ausfallerkennung von Leuchtdioden in einem Kraftfahrzeug | |
| DE102004007278A1 (de) | Beleuchtungsvorrichtung, insbesondere für den Innenraum von Fahrzeugen | |
| EP0073059B1 (de) | Überwachungsschaltung für einen Thyristor | |
| DE3428444C2 (de) | ||
| DE102010003506A1 (de) | LED-Clusterschaltung mit Fehlerdetektion | |
| DE102008037551A1 (de) | Vorrichtung zum Betreiben von Leuchtdiodenketten | |
| EP1945006B1 (de) | Leuchtdioden-Schaltung mit in Reihe geschaltete Gruppen von parallelen LED-Zweigen. | |
| DE102009028101A1 (de) | Funktionsüberwachung einer LED-Anordnung | |
| DE102017123260B3 (de) | Vorrichtung zur Versorgung von LED-Ketten mit elektrischer Energie mit Einzel-LED-Kurzschlusserkennung | |
| DE10243794B9 (de) | Schaltungsanordnung mit einer LED-Anordnung | |
| WO2008065018A1 (de) | Schaltungsanordnung und verfahren zur ausfallsicherung einer led-oder oled-kette | |
| DE102008035075A1 (de) | Schalteinrichtung und Schaltungsanordnungen zum Schalten bei einer hohen Betriebsspannung | |
| EP2296440B1 (de) | Verfahren und Schaltungsanordnung zur Ausfallerkennung von Leuchtdioden | |
| DE10349282A1 (de) | Verpol- und Überspannungsschutz für 5V-Sensoren | |
| DE102019103660B4 (de) | Betriebsschaltung für das Betreiben mehrerer Lasten |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| 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 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20190410 |
|
| 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 |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ELMOS SEMICONDUCTOR SE |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R079 Ref document number: 502017010489 Country of ref document: DE Free format text: PREVIOUS MAIN CLASS: H05B0033080000 Ipc: H05B0045520000 |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
| RIC1 | Information provided on ipc code assigned before grant |
Ipc: H05B 45/46 20200101ALI20201113BHEP Ipc: H05B 45/52 20200101AFI20201113BHEP |
|
| INTG | Intention to grant announced |
Effective date: 20201209 |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: PATEL, NIYANT Inventor name: SUDHAUS, ANDRE |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
| 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: AT Ref legal event code: REF Ref document number: 1397559 Country of ref document: AT Kind code of ref document: T Effective date: 20210615 |
|
| 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: 502017010489 Country of ref document: DE |
|
| REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG9D |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20210526 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: 20210526 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: 20210826 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: 20210526 |
|
| REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20210526 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20210827 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: 20210926 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: 20210826 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: 20210526 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: 20210526 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: 20210927 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: 20210526 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: 20210526 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20210526 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20210526 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: 20210526 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: 20210526 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: 20210526 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: 20210526 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: 20210526 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: 20210526 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502017010489 Country of ref document: DE |
|
| 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 |
|
| 26N | No opposition filed |
Effective date: 20220301 |
|
| 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: 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: 20210926 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: 20210526 |
|
| REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20211031 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20211012 |
|
| 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: 20210526 |
|
| 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 NON-PAYMENT OF DUE FEES Effective date: 20211012 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: 20210526 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20211012 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20211031 |
|
| 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: 20211031 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20211031 |
|
| 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: 20211012 |
|
| 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: 20210526 |
|
| P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230525 |
|
| 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: 20171012 |
|
| REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 1397559 Country of ref document: AT Kind code of ref document: T Effective date: 20221012 |
|
| 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: 20221012 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20210526 |
|
| 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: 20210526 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 502017010489 Country of ref document: DE Owner name: ELMOS SEMICONDUCTOR SE, DE Free format text: FORMER OWNER: ELMOS SEMICONDUCTOR SE, 44227 DORTMUND, DE |
|
| 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: 20210526 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20251015 Year of fee payment: 9 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20251022 Year of fee payment: 9 |