EP3154316B1 - Led lamp with control circuit - Google Patents
Led lamp with control circuit Download PDFInfo
- Publication number
- EP3154316B1 EP3154316B1 EP16192574.8A EP16192574A EP3154316B1 EP 3154316 B1 EP3154316 B1 EP 3154316B1 EP 16192574 A EP16192574 A EP 16192574A EP 3154316 B1 EP3154316 B1 EP 3154316B1
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- EP
- European Patent Office
- Prior art keywords
- voltage converter
- switch
- light
- lighting means
- output current
- 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.)
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- 230000004907 flux Effects 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims description 2
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Classifications
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- 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
-
- 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
- H05B45/48—Details of LED load circuits with an active control inside an LED matrix having LEDs organised in strings and incorporating parallel shunting devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/04—Arrangement of electric circuit elements in or on lighting devices the elements being switches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01K—ELECTRIC INCANDESCENT LAMPS
- H01K1/00—Details
- H01K1/62—One or more circuit elements structurally associated with the lamp
- H01K1/64—One or more circuit elements structurally associated with the lamp with built-in switch
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
- H05B45/382—Switched mode power supply [SMPS] with galvanic isolation between input and output
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
- H05B45/385—Switched mode power supply [SMPS] using flyback topology
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
- H05B45/39—Circuits containing inverter bridges
Definitions
- Electric light sources are operated with supply voltages and supply currents, which are usually tuned to the nature and characteristics of the light sources.
- this tuning is often realized via converter circuits or converter circuits which rectify an input AC voltage in a DC supply voltage with a predetermined direct current.
- the power consumption and thus the brightness can be adjusted with LEDs.
- Constant-current converter circuits regulate the output current so that the operating current of one or more LED modules is within the optimum range.
- the output current value setpoint is preset at the factory in conventional converter circuits for LED luminaires.
- the brightness of the lamp is invariable.
- Various approaches in the prior art try for a user of such LED lights to create freedom in the choice of the brightness of the LEDs:
- the document WO 2010/021675 A1 discloses an LED lamp with a built-in base converter circuit whose output current can be controlled via a likewise integrated in the base switching mechanism.
- the publication DE 10 2010 002 996 A1 discloses a lighting arrangement with an LED lamp and a base, in which an operating element for adjusting the luminous properties of the LED lamp is integrated.
- the pamphlets US 2011/0068706 A1 . US 2012/0280617 A1 . EP 2 496 057 A1 , and US 2013/0200812 A1 reveal LED lights with adjustable supply current for the LED bulbs.
- a luminaire comprises the features of claim 1.
- Fig. 1 shows a schematic illustration of a lamp 20.
- the lamp 20 is equipped with one or more bulbs 22 on LED (LED) basis.
- the LED lighting means 22 may comprise, for example, series circuits of LED chips arranged on a light source carrier 21.
- the luminaire 20 furthermore comprises electrical circuits which are arranged to supply power to the LED luminous means 22 on the illuminant carrier 21.
- the luminaire 20 furthermore has a switch 10, which is arranged in a switch housing 11 on the illuminant carrier 21 or in the vicinity of the illuminant carrier 21.
- the switch 10 has an actuating element 12, the actuation of which serves to set the setpoint output current of the voltage converter circuit - here a setpoint output direct current.
- the actuating element 12 may, for example, be designed so that it can be brought into a plurality of different switching positions which have different values for correlate the adjustable nominal output DC current.
- the actuator 12 may be a slider which can be reciprocated linearly in a recess of the switch housing. In this case, the actuating element 12 can be formed mechanically such that it can engage in the various switching positions and thus set the target output DC.
- the actuator 12 may also include a knob, a button, a selector lever, a rocker switch, a toggle switch, a detent switch, a pull switch or a similar mechanical control.
- the user can set the luminous intensity or brightness of the LED illuminant 22 supplied by the voltage converter circuit, which is dependent on the set nominal output DC current of the voltage converter circuit.
- the brightness of the luminaire 20 can thus be adapted on-site during the installation of the luminaire 20 by a technician as required and flexibly, without having to make any special arrangements or presettings by the luminaire manufacturer.
- the switch 20 can be arranged in such a way in the lamp housing 23 that it is not visible or not easily accessible to the viewer in the ordinary use of the lamp 20 behind the lamp cover for the viewer. As a result, the aesthetics of the lamp 20 is not diminished, at the same time the basic accessibility by an installer, electrical engineers or maintenance personnel is not significantly affected.
- Fig. 2 shows a schematic representation of a switch 10, as in a lamp 20 of the Fig. 1 can be installed.
- the switch 10 may comprise a switch housing 11, which is formed, for example, box-shaped or parallelepiped. It may of course be possible, another outer geometric shape for the switch housing 11 to choose, for example, adapted to a recess in the lamp housing 21 of the lamp 20 shape.
- the switch 10 also has an actuating element 12 in the form of a slide control.
- the slider 12 can be switched in a recess of the switch housing 11 along a displacement between a plurality of switch positions.
- a scale 13 can be printed or embossed with labels for the various switch positions on the switch housing 11.
- the mechanical actuator 12 can move the connecting bridge 14 in the switch housing 11 between different positions back and forth, in which the contact element 14a the input contact 15 via the connecting bridge 14 electrically with one of the along the direction of the displacement of the mechanical actuator 12th arranged branch contacts 16a, 16b, 16c connects.
- a second switch position is indicated in dashed lines, in which the input contact 15 is electrically conductively connected to the branch contact 16c via the connection bridge 14.
- Fig. 4 and 5 each one Voltage converter circuits, in particular voltage converter circuits for a lamp 20, such as in connection with Fig. 1 explained.
- the voltage converter circuits each comprise an input terminal 2a, a voltage converter 4 connected to the input terminal 2a, the output of which is coupled to at least one power sensor 3, and an output terminal 2b.
- the power sensor 3 can be, for example, an LED illuminant 22 or a matrix of LED illuminants 22.
- a DC voltage may be present between the terminals 2a, 2b.
- an alternating voltage can also be applied between the terminals 2a, 2b, in which case a further (not explicitly shown) rectifier can be arranged in front of the voltage converter 4, so that between the nodes 6a and 6b in FIG Fig. 4 a DC voltage is applied.
- the voltage converter 4 may be, for example, a transformer with galvanic isolation, such as a flyback converter or a push-pull flow converter.
- the type of voltage converter 4 is not limited to specific converter types - the voltage converter 4 only has to be designed to output a predefined setpoint output voltage with a controllable setpoint output current.
- Fig. 4 shows a first variant of a voltage converter circuit.
- a control circuit 1 for the voltage converter 4 is connected in parallel to the voltage converter 4.
- the control circuit 1 comprises the switch 10 whose input contact 15 is connected to the node 6a between the input terminal 2a and the input of the voltage converter 4.
- the switch 10 has a contactor 18 which, depending on the switching position of the associated (in Fig. 4 not shown) mechanical actuator 12 electrically connects the input contact 15 with one of the branch contacts 16a, 16b, 16c.
- Each of the branch contacts 16a, 16b, 16c forms a current-carrying branch, in each of which a resistor 17a, 17b, 17c is arranged.
- the resistors 17a, 17b, 17c can be shunt resistors of different resistance value, for example. After the resistors 17a, 17b, 17c, the current-carrying branches are again fed out of the switch 10 into a node 6b between the output of the voltage converter 4 and the output terminal 2b.
- the control circuit 1 further comprises a detector circuit 5, which is designed to detect in which of the current-carrying branches a current that is, which of the branch contacts 16a, 16b, 16c is actively connected to the input contact 15.
- the detector circuit 5 can determine, for example, the voltage drop of the branch voltages Ua, Ub, Uc via the respective (shunt) resistors 17a, 17b, 17c.
- the detector circuit 5 can then generate a drive signal C for the voltage converter 4, which adjusts the voltage converter 4 to a predetermined desired output current.
- the predetermined desired output currents which can be adjusted via the drive signal C, can be adapted in particular to desired brightness values of the power pickup 3 configured as an LED light source.
- Fig. 5 shows a second variant for a voltage converter circuit.
- the voltage converter 4 in this case has two control inputs 4a and 4b, between which a control circuit 1 for the voltage converter 4 is connected.
- the control circuit 1 comprises the switch 10 whose input contact is connected to the first of the control inputs 4a.
- the switch 10 has a contactor 18 which, depending on the switching position of the associated (in Fig. 5 not shown) mechanical actuator 12 electrically conductively connects the first of the control inputs 4a with one of the branch contacts 16a, 16b, 16c.
- Each of the branch contacts 16a, 16b, 16c forms a current-carrying branch, in each of which a resistor 17a, 17b, 17c is arranged.
- the resistors 17a, 17b, 17c can have, for example, different resistance values.
- the current-carrying branches are again connected to the second of the control inputs 4b of the voltage converter 4 after the resistors 17a, 17b, 17c from the switch 10.
- the resistance value that is present in the branch between the two control inputs 4a and 4b of the voltage converter 4 is thus varied.
- one of the plurality of parallel-connected current-carrying branches is selectively coupled between the two control inputs 4a and 4b of the voltage converter (4).
- the Fig. 4 and 5 is selected by adjusting the actuating element 12 of the switch 10 one of the plurality of switching positions, so that on the variation of the output current of the voltage converter, the lumen of the lamp can be changed.
- luminaires equipped with such control circuits 1 can be supplied uniformly at the factory - the brightness of the luminaire can be adjusted flexibly via an adjustment of the switch 10 on site.
- electronic ballasts can be factory delivered uniformly, because the adaptation of the output current can be done after installation in the lamp via the built-in lamp light switch 10.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- User Interface Of Digital Computer (AREA)
Description
Die Erfindung betrifft eine Steuerschaltung für die Einstellung eines Ausgangsstroms eines Spannungswandlers, sowie eine Leuchte mit einer derartigen Steuerschaltung, insbesondere für den Einsatz in Leuchten mit LED-Leuchtmitteln.The invention relates to a control circuit for adjusting an output current of a voltage converter, and a lamp with such a control circuit, in particular for use in lights with LED bulbs.
Elektrische Lichtquellen werden mit Versorgungsspannungen und Versorgungsströmen betrieben, die üblicherweise auf Art und Charakteristika der Lichtquellen abgestimmt sind. Spezielle bei Leuchtdioden (LEDs) wird diese Abstimmung häufig über Konverterschaltungen bzw. Wandlerschaltungen realisiert, die eine Eingangswechselspannung in eine Versorgungsgleichspannung mit vorbestimmter Gleichstromstärke gleichrichten. Über die Höhe der regelbaren Gleichstromstärke kann bei LEDs die Leistungsaufnahme und damit die Helligkeit eingestellt werden. Wandlerschaltungen mit regelbarem Konstantstrom regeln die Ausgangsstromstärke so, dass der Betriebsstrom einer oder mehrerer betriebener LED-Module im optimalen Bereich liegt.Electric light sources are operated with supply voltages and supply currents, which are usually tuned to the nature and characteristics of the light sources. Especially in light-emitting diodes (LEDs), this tuning is often realized via converter circuits or converter circuits which rectify an input AC voltage in a DC supply voltage with a predetermined direct current. About the height of the adjustable direct current, the power consumption and thus the brightness can be adjusted with LEDs. Constant-current converter circuits regulate the output current so that the operating current of one or more LED modules is within the optimum range.
Typischerweise wird der Sollwert der Ausgangsstromstärke in herkömmlichen Wandlerschaltungen für Leuchten mit LED-Leuchtmitteln werksseitig voreingestellt. Dadurch ist die Helligkeit der Leuchte invariabel. Verschiedene Ansätze im Stand der Technik versuchen für einen Anwender solcher LED-Leuchten Freiräume bei der Wahl der Helligkeit der LEDs zu schaffen: Die Druckschrift
Die Druckschriften
Eine der Aufgaben der Erfindung besteht daher darin, Lösungen für die Ansteuerung von Spannungswandlern zu finden, bei denen der Sollausgangsstrom flexibel angepasst werden kann. Eine weitere der Aufgaben der Erfindung besteht zudem darin, einfach zu implementierende Lösungen für Leuchten mit LED-Leuchtmitteln zu finden, bei denen die Helligkeit der LED-Leuchtmittel flexibel und ohne großen installationstechnischen Aufwand eingestellt werden kann.It is therefore one of the objects of the invention to find solutions for the control of voltage transformers, in which the setpoint output current can be flexibly adjusted. Another of the objects of the invention is also to find easy-to-implement solutions for lights with LED bulbs, where the brightness of the LED bulbs can be adjusted flexibly and without much installation technical effort.
Gemäß einem ersten Aspekt der Erfindung umfasst eine Leuchte die Merkmale des Anspruchs 1.According to a first aspect of the invention, a luminaire comprises the features of
Vorteilhafte Ausgestaltungen und Weiterbildungen ergeben sich aus den weiteren Unteransprüchen sowie aus der Beschreibung unter Bezugnahme auf die Figuren.Advantageous embodiments and further developments will become apparent from the other dependent claims and from the description with reference to the figures.
Die obigen Ausgestaltungen und Weiterbildungen lassen sich, sofern sinnvoll, beliebig miteinander kombinieren. Weitere mögliche Ausgestaltungen, Weiterbildungen und Implementierungen der Erfindung umfassen auch nicht explizit genannte Kombinationen von zuvor oder im Folgenden bezüglich der Ausführungsbeispiele beschriebenen Merkmale der Erfindung. Insbesondere wird dabei der Fachmann auch Einzelaspekte als Verbesserungen oder Ergänzungen zu der jeweiligen Grundform der vorliegenden Erfindung hinzufügen.The above embodiments and developments can, if appropriate, combine with each other as desired. Further possible refinements, developments and implementations of the invention also include combinations, not explicitly mentioned, of features of the invention described above or below with regard to the exemplary embodiments. In particular, the person skilled in the art will also add individual aspects as improvements or additions to the respective basic form of the present invention.
Die vorliegende Erfindung wird nachfolgend anhand der in den schematischen Figuren angegebenen Ausführungsbeispiele näher erläutert. Es zeigen dabei:
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Fig. 1 eine schematische Illustration einer Leuchte mit einer Steuerschaltung für einen Spannungswandler gemäß einer Ausführungsform der Erfindung; -
Fig. 2 eine schematische Illustration eines Schalters der Steuerschaltung derFig. 1 gemäß einer weiteren Ausführungsform der Erfindung; -
Fig. 3 eine schematische Illustration einer Schnittansicht des Schalters derFig. 2 gemäß einer weiteren Ausführungsform der Erfindung; -
Fig. 4 ein Schaltbild einer Steuerschaltung für einen Spannungswandler gemäß einer weiteren Ausführungsform der Erfindung; und -
Fig. 5 ein Schaltbild einer Steuerschaltung für einen Spannungswandler gemäß einer weiteren Ausführungsform der Erfindung.
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Fig. 1 a schematic illustration of a lamp with a control circuit for a voltage converter according to an embodiment of the invention; -
Fig. 2 a schematic illustration of a switch of the control circuit ofFig. 1 according to another embodiment of the invention; -
Fig. 3 a schematic illustration of a sectional view of the switch ofFig. 2 according to another embodiment of the invention; -
Fig. 4 a circuit diagram of a control circuit for a voltage converter according to another embodiment of the invention; and -
Fig. 5 a circuit diagram of a control circuit for a voltage converter according to another embodiment of the invention.
Die beiliegenden Figuren sollen ein weiteres Verständnis der Ausführungsformen der Erfindung vermitteln. Sie veranschaulichen Ausführungsformen und dienen im Zusammenhang mit der Beschreibung der Erklärung von Prinzipien und Konzepten der Erfindung. Andere Ausführungsformen und viele der genannten Vorteile ergeben sich im Hinblick auf die Zeichnungen. Die Elemente der Zeichnungen sind nicht notwendigerweise maßstabsgetreu zueinander gezeigt. Richtungsangebende Terminologie wie etwa "oben", "unten", "links", "rechts", "über", "unter", "horizontal", "vertikal", "vorne", "hinten" und ähnliche Angaben werden lediglich zu erläuternden Zwecken verwendet und dienen nicht der Beschränkung der Allgemeinheit auf spezifische Ausgestaltungen wie in den Figuren gezeigt.The accompanying figures are intended to convey a further understanding of the embodiments of the invention. They illustrate embodiments and, together with the description, serve to explain principles and concepts of the invention. Other embodiments and many of the stated advantages will become apparent with reference to the drawings. The elements of the drawings are not necessarily shown to scale to each other. Directional terminology such as "top", "bottom", "left", "right", "over", "under", "horizontal", "vertical", "front", "rear" and the like are merely to be explained Purposes are not intended to limit the general public to specific embodiments as shown in the figures.
In den Figuren der Zeichnung sind gleiche, funktionsgleiche und gleich wirkende Elemente, Merkmale und Komponenten - sofern nichts anderes ausgeführt ist - jeweils mit denselben Bezugszeichen versehen.In the figures of the drawing are the same, functionally identical and same-acting elements, features and components - unless otherwise stated - each provided with the same reference numerals.
Beispielsweise können die LED-Leuchtmittel 22 über eine nicht explizit dargestellte Spannungswandlerschaltung mit einer Versorgungsspannung beaufschlagt werden. Die Spannungswandlerschaltung ist dabei dazu ausgelegt, das oder die LED-Leuchtmittel 22 mit elektrischem Strom zu versorgen. Die Spannungswandlerschaltung ist dazu in ihrem Ausgangsstrom regelbar. Durch die Regelbarkeit des Ausgangsstroms kann der Lichtstrom, der durch das oder die LED-Leuchtmittel 22 erzeugt wird, auf gewünschte Werte eingestellt werden. Zum Beispiel kann der der Ausgangsstrom der Spannungswandlerschaltung in mindestens zwei diskreten Stufen einstellbar sein, wodurch die LED-Leuchtmittel 22 auf zwei verschiedene Helligkeitsstufen einstellbar sind. Alternativ dazu kann der der Ausgangsstrom der Spannungswandlerschaltung auch kontinuierlich in einem Ausgangsstrombereich regelbar sein, beispielsweise durch Verwendung eines Potentiometers. Das Potentiometer kann dabei zum Beispiel in den Leuchtmittelträger 21 integriert werden. Dadurch können die LED-Leuchtmittel 22 mit kontinuierlich variierender Helligkeit betrieben werden.For example, the LED lighting means 22 can be supplied with a supply voltage via a voltage converter circuit not explicitly shown. The voltage converter circuit is designed to be the one or the
Insbesondere kann die Spannungswandlerschaltung einen Gleichrichter, mit dem eine Netzwechselspannung in eine Gleichspannung gewandelt werden kann, sowie einen Stromrichter aufweisen, mit dem ein konstanter und regelbarer Ausgangsgleichstrom bei einem vorgegebenen Ausgangsspannungslevel an die LED-Leuchtmittel 22 ausgegeben werden kann. Die elektrischen Schaltungen können beispielsweise auf der dem Betrachter der
Die Leuchte 20 kann dabei beispielsweise eine LED-Leiste sein, die eine generell langgestreckte Form aufweist und deren Leuchtmittelträger 21 als Leiste in einem Leuchtmittelgehäuse 23 eingebettet ist. Über dem Leuchtmittelträger 21 kann bündig mit dem Leuchtmittelgehäuse 23 eine (nicht explizit dargestellte) Leuchtenabdeckung angeordnet werden, welche den Leuchtmittelträger 21, die LED-Leuchtmittel 22 und die elektrischen Schaltungen für einen Nutzer der Leuchte 20 unzugänglich macht.In this case, the
Die Leuchte 20 weist weiterhin einen Schalter 10 auf, welcher in einem Schaltergehäuse 11 auf dem Leuchtmittelträger 21 oder in der Nähe des Leuchtmittelträgers 21 angeordnet ist. Der Schalter 10 weist ein Betätigungselement 12 auf, dessen Betätigung dazu dient, den Sollausgangsstrom der Spannungswandlerschaltung - hier einen Sollausgangsgleichstrom - einzustellen. Das Betätigungselement 12 kann beispielsweise in eine Mehrzahl von verschiedenen Schaltstellungen verbringbar ausgebildet sein, die mit verschiedenen Werten für den einstellbaren Sollausgangsgleichstrom korrelieren. Zum Beispiel kann das Betätigungselement 12 ein Schieber sein, welcher in einer Ausnehmung des Schaltergehäuses linear hin und her bewegt werden kann. Dabei kann das Betätigungselement 12 derart mechanisch ausgebildet werden, dass es in den verschiedenen Schaltstellungen einrasten und somit den Sollausgangsgleichstrom einstellen kann. Alternativ dazu kann das Betätigungselement 12 auch einen Drehknopf, einen Taster, einen Wahlhebel, einen Wippschalter, einen Kippschalter, einen Rastschalter, einen Zugschalter oder ein ähnliches mechanisches Bedienelement aufweisen.The
Es kann vorteilhaft sein, wenn für den Schalter 10 ein Einwegschalter vorgesehen wird, welcher nach einmaliger Einstellung einer Betriebsposition irreversibel deaktiviert bleibt. Zum Beispiel kann hierzu eine mechanische Verzahnung oder ein Ratschenmechanismus im Inneren eines Gehäuses des Schalters 10 angeordnet werden, welcher in nach einer Betätigung einen irreversibel Selbsthaltemechanismus auslöst. Dies kann besonders dann vorteilhaft sein, wenn nur eine einmalige werksseitige Einstellung eines Helligkeitswertes gewünscht ist, und einem Nutzer der Leuchte keine weitere Einstellmöglichkeit gewährt werden soll.It may be advantageous if a one-way switch is provided for the
Durch die manuelle Betätigung des Betätigungselements 12 durch einen Nutzer kann der Nutzer die von dem eingestellten Sollausgangsgleichstrom der Spannungswandlerschaltung abhängige Leuchtstärke bzw. Helligkeit der durch die Spannungswandlerschaltung versorgten LED-Leuchtmittel 22 einstellen. Insbesondere kann die Helligkeit der Leuchte 20 somit vor Ort bei der Installation der Leuchte 20 durch einen Techniker bedarfsgerecht und flexibel angepasst werden, ohne dass besondere Vorkehrungen oder Voreinstellungen durch den Leuchtenhersteller getroffen werden müssten. Der Schalter 20 kann dabei derart in dem Leuchtmittelgehäuse 23 angeordnet sein, dass er im gewöhnlichen Gebrauch der Leuchte 20 hinter der Leuchtenabdeckung für den Betrachter nicht sichtbar bzw. nicht ohne weiteres zugänglich ist. Dadurch wird die Ästhetik der Leuchte 20 nicht geschmälert, gleichzeitig die prinzipielle Zugänglichkeit durch einen Installateur, Elektrotechniker oder Wartungspersonal nicht wesentlich beeinträchtigt.By the manual actuation of the
Der Schalter 10 weist zudem ein Betätigungselement 12 in Form eines Schiebereglers auf. Der Schieberegler 12 kann in einer Ausnehmung des Schaltergehäuses 11 entlang eines Verstellwegs zwischen mehreren Schalterstellungen geschaltet werden. Dazu kann auf dem Schaltergehäuse 11 eine Skala 13 mit Beschriftungen für die verschiedenen Schalterstellungen aufgedruckt oder eingeprägt sein.The
Durch eine Schiebebewegung S kann das mechanische Betätigungselement 12 die Verbindungsbrücke 14 in dem Schaltergehäuse 11 zwischen verschiedenen Positionen hin und her bewegen, bei denen das Kontaktelement 14a den Eingangskontakt 15 über die Verbindungsbrücke 14 elektrisch mit jeweils einem der entlang der Richtung des Verstellwegs des mechanischen Betätigungselements 12 angeordneten Zweigkontakte 16a, 16b, 16c verbindet. Beispielhaft ist in gestrichelter Darstellung eine zweite Schalterstellung angedeutet, in der der Eingangskontakt 15 über die Verbindungsbrücke 14 elektrisch leitfähig mit dem Zweigkontakt 16c verbunden ist.By a sliding movement S, the
Die über den Schalter 10 vermittelte einstellbare elektrische Verschaltung ist in den Schaltbildern der
Zwischen den Anschlüssen 2a, 2b kann beispielsweise eine Gleichspannung anliegen. Alternativ dazu kann zwischen den Anschlüssen 2a, 2b auch eine Wechselspannung angelegt werden, wobei dann vor dem Spannungswandler 4 ein weiterer (nicht explizit gezeigter) Gleichrichter angeordnet werden kann, so dass zwischen den Knoten 6a und 6b in
Die Steuerschaltung 1 umfasst weiterhin eine Detektorschaltung 5, welche dazu ausgelegt ist, zu detektieren, in welchem der Stromführungszweige ein Strom fließt, das heißt, welcher der Zweigkontakte 16a, 16b, 16c aktiv mit dem Eingangskontakt 15 verbunden ist. Dazu kann die Detektorschaltung 5 beispielsweise den Spannungsabfall der Zweigspannungen Ua, Ub, Uc über den jeweiligen (Shunt-)Widerständen 17a, 17b, 17c ermitteln. In Abhängigkeit von dem ermittelten Spannungsabfall der Zweigspannungen Ua, Ub, Uc kann die Detektorschaltung 5 dann ein Ansteuersignal C für den Spannungswandler 4 generieren, welches den Spannungswandler 4 auf einen vorbestimmten Sollausgangsstrom einstellt. Die vorbestimmten Sollausgangsströme, die sich über das Ansteuersignal C einstellen lassen, können insbesondere an gewünschte Helligkeitswerte des als LED-Leuchtmittel ausgebildeten Leistungsaufnehmers 3 angepasst werden.The
Je nach mechanischer Betriebsposition des Schalters 10 wird somit der Widerstandswert variiert, der in dem Zweig zwischen den zwei Steuereingängen 4a und 4b des Spannungswandlers 4 anliegt. Durch die Ansteuerung des Kontaktgebers 18 wird je einer der der Vielzahl von parallel geschalteten Stromführungszweigen selektiv zwischen die zwei Steuereingänge 4a und 4b des Spannungswandlers (4) gekoppelt.Depending on the mechanical operating position of the
In beiden Spannungswandlerschaltungen der
- 11
- Steuerschaltungcontrol circuit
- 2a2a
- Eingangsanschlussinput port
- 2b2 B
- Ausgangsanschlussoutput port
- 33
- LeuchtmittelLamp
- 44
- SpannungswandlerDC converter
- 4a4a
- Steuereingangcontrol input
- 4b4b
- Steuereingangcontrol input
- 55
- Detektorschaltungdetector circuit
- 6a6a
- Knotennode
- 6b6b
- Knotennode
- 1010
- Schalterswitch
- 1111
- Schaltergehäuseswitch housing
- 1212
- Betätigungselementjig
- 1313
- Schalterskalaswitch scale
- 1414
- Verbindungsbrückeconnecting bridge
- 14a14a
- Kontaktelementcontact element
- 14b14b
- Kontaktelementcontact element
- 1515
- Eingangskontaktinput contact
- 16a16a
- Zweig kontaktBranch contact
- 16b16b
- Zweig kontaktBranch contact
- 16c16c
- Zweig kontaktBranch contact
- 17a17a
- Widerstandresistance
- 17b17b
- Widerstandresistance
- 17c17c
- Widerstandresistance
- 2020
- Leuchtelamp
- 2121
- LeuchtmittelträgerLamp support
- 2222
- LED-LeuchtmittelLED bulbs
- 2323
- LeuchtmittelgehäuseLamp housing
- CC
- Ansteuersignalcontrol signal
- SS
- Schiebebewegungsliding movement
- UaUa
- Zweigspannungbranch voltage
- Ubub
- Zweigspannungbranch voltage
- UcUc
- Zweigspannungbranch voltage
Claims (12)
- Light (20) having a lighting means carrier (21); at least one LED lighting means (22) that is arranged on the lighting means carrier (21); and a voltage converter circuit that is configured so as to supply the at least one LED lighting means (22) with electrical current, and it is possible to control the output current of said voltage converter circuit;
characterised in that
the voltage converter circuit comprises a voltage converter (4) that is connected in series to the at least one LED lighting means and said voltage converter circuit is supplied with electrical voltage by the voltage converter (4); wherein the voltage converter circuit furthermore comprises a control circuit (1) having a switch (10) and said control circuit is configured so as depending on the mechanical operating position of the switch (10) to output to the voltage converter (4) an actuation signal (C) for setting a desired output current of the voltage converter (4);
wherein the switch (10) furthermore comprises a multiplicity of parallel-connected current-conducting branches having resistors (17a, 17b, 17c) with different resistance values and said switch comprises a contactor (18), wherein the contactor (18) is configured so as to selectively connect each one of the multiplicity of parallel-connected current-conducting branches to an input contact (15) of the switch (10); and wherein the control circuit (1) furthermore comprises a detector circuit (5) that is configured so as to determine a voltage drop (Ua, Ub, Uc) across the resistors (17a, 17b, 17c) and in dependence upon the determined voltage drop (Ua, Ub, Uc) to output to the voltage converter (4) the actuation signal (C) for setting a desired output current of the voltage converter (4). - Light (20) according to claim 1, wherein the output current of the voltage converter (4) may be controlled in such a manner that the luminous flux that is generated by means of the at least one LED lighting means (22) may be set to desired values.
- Light (20) according to any one of claims 1 and 2, wherein the output current of the voltage converter (4) may be set in at least two discrete steps.
- Light (20) according to any one of claims 1 and 2, wherein the output current of the voltage converter (4) may be continuously controlled in an output current range.
- Light (20) according to any one of claims 1 to 4, wherein the resistors (17a, 17b, 17c) comprise shunt resistors.
- Light (20) according to any one of the claims 1 to 5, furthermore having:a mechanical actuating element (12) that is mechanically coupled to the contactor (18), and is configured so as depending on the mechanical operating position to control the contactor (18) for selectively connecting each one of the multiplicity of parallel-connected current-conducting branches to the input contact (15) of the switch (10).
- Light (20) according to any one of claims 1 to 6, wherein the voltage converter (4) comprises a DC converter having galvanic isolation.
- Light (20) according to any one of claims 1 to 7, wherein the switch (10) is arranged on the lighting means carrier (21).
- Light (20) according to any one of claims 1 to 8, furthermore having :a lighting means housing (23) in which the lighting means carrier (21) is arranged; anda light cover that is arranged on the lighting means housing (23) and that makes the switch (10) on the lighting means carrier (21) inaccessible from the outside.
- Light (20) according to claim 9, furthermore comprising:an electronic ballast unit EVG in which the voltage converter (4) is arranged.
- Light (20) according to any one of claims 1 to 10, wherein the output current that is output by means of the voltage converter (4) comprises predefined desired output current values that correspond to predeterminable brightness values of the at least one LED lighting means (22).
- Light (20) according to any one of claims 1 to 11, wherein the switch (10) comprises a one-way switch (10) that remains irreversibly deactivated after an operating position has been set once.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015219367.5A DE102015219367B4 (en) | 2015-10-07 | 2015-10-07 | LED LIGHT WITH CONTROL CIRCUIT |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3154316A1 EP3154316A1 (en) | 2017-04-12 |
EP3154316B1 true EP3154316B1 (en) | 2018-03-28 |
Family
ID=57103908
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16192574.8A Active EP3154316B1 (en) | 2015-10-07 | 2016-10-06 | Led lamp with control circuit |
Country Status (4)
Country | Link |
---|---|
US (1) | US10143048B2 (en) |
EP (1) | EP3154316B1 (en) |
AT (1) | AT517758A3 (en) |
DE (1) | DE102015219367B4 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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US10757772B2 (en) | 2018-06-14 | 2020-08-25 | H4X E.U. | Control device for an LED light and method for controlling an LED light |
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DE102019101348B3 (en) | 2019-01-18 | 2020-01-16 | Vossloh-Schwabe Deutschland Gmbh | Supply circuit for supplying semiconductor lighting elements and lighting circuit |
US11906140B2 (en) | 2020-05-11 | 2024-02-20 | Wangs Alliance Corporation | Fixtures, power and control systems for same |
CN117498894A (en) * | 2022-08-02 | 2024-02-02 | 华为技术有限公司 | Communication device, communication control method thereof, and communication system |
US11802682B1 (en) | 2022-08-29 | 2023-10-31 | Wangs Alliance Corporation | Modular articulating lighting |
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2015
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- 2015-11-09 AT ATA50952/2015A patent/AT517758A3/en not_active Application Discontinuation
-
2016
- 2016-10-06 EP EP16192574.8A patent/EP3154316B1/en active Active
- 2016-10-07 US US15/287,929 patent/US10143048B2/en active Active
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US10757772B2 (en) | 2018-06-14 | 2020-08-25 | H4X E.U. | Control device for an LED light and method for controlling an LED light |
Also Published As
Publication number | Publication date |
---|---|
DE102015219367A1 (en) | 2017-04-13 |
AT517758A3 (en) | 2018-08-15 |
US10143048B2 (en) | 2018-11-27 |
US20170105254A1 (en) | 2017-04-13 |
AT517758A2 (en) | 2017-04-15 |
EP3154316A1 (en) | 2017-04-12 |
DE102015219367B4 (en) | 2022-07-14 |
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