EP2532955A2 - Lampe à diodes électroluminescentes et circuit de commande d'une source lumineuse - Google Patents

Lampe à diodes électroluminescentes et circuit de commande d'une source lumineuse Download PDF

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Publication number
EP2532955A2
EP2532955A2 EP12171091A EP12171091A EP2532955A2 EP 2532955 A2 EP2532955 A2 EP 2532955A2 EP 12171091 A EP12171091 A EP 12171091A EP 12171091 A EP12171091 A EP 12171091A EP 2532955 A2 EP2532955 A2 EP 2532955A2
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EP
European Patent Office
Prior art keywords
hollow body
led lamp
circuit
cover
lamp according
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.)
Withdrawn
Application number
EP12171091A
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German (de)
English (en)
Other versions
EP2532955A3 (fr
Inventor
Dietmar Müller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2532955A2 publication Critical patent/EP2532955A2/fr
Publication of EP2532955A3 publication Critical patent/EP2532955A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/20—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports
    • F21S4/28—Lighting devices or systems using a string or strip of light sources with light sources held by or within elongate supports rigid, e.g. LED bars
    • 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
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
    • F21V23/006—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate being distinct from the light source holder
    • 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
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/007—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array enclosed in a casing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to a light-emitting diode lamp with a plurality of light-emitting diodes, which consists of a limited number of easy-to-produce items, meets high tightness requirements and has a long life both in dimming operation and in pulsed operation at maximum brightness.
  • lamps which use light bulbs and fluorescent tubes as lighting means. Although such lamps illuminate a wide space range, but are only suitable for a dimmed or pulsed operation, since such operation leads to a significant reduction in their life. In addition, the brightness of light bulbs and fluorescent tubes is limited, which is why they can not be used in some applications.
  • lamps with light-emitting diodes have proven to be advantageous.
  • a lamp In order to illuminate a wide range of space with LEDs, a lamp must have a variety of light emitting diodes. Since such lamps contains a lot of additional components, a great deal of effort is required to produce such lamps and above all to make them largely moisture-proof.
  • the object of the present invention to provide a light-emitting diode lamp which is as simple as possible, in particular due to a limited number of individual components, can be produced and the least possible bushings provides to achieve a predetermined moisture density to a to achieve the highest possible moisture classification.
  • the lamp should continue to be suitable for use in alarm systems as a high-frequency flashing light unit or in industrial plants as luminance-controllable light source and easy to use.
  • a light-emitting diode lamp comprises a hollow body having an outer side and an interior bounding or forming inner side, a plurality of light-emitting diodes which are arranged on the outer side of the hollow body, and a circuit for driving the light-emitting diodes, which is connected to the light-emitting diodes. It is provided that the circuit of the light-emitting diode lamp is at least partially disposed in the interior of the hollow body, preferably fixed therein.
  • the hollow body is formed in one piece and can be formed by avoiding a plurality of housing parts in such a way that the interior and thus the circuit are moisture-proof separated from the environment, while the located outside of the hollow body LEDs can be poured onto the corresponding boards. As a result, a certain moisture classification can be achieved and the field of application of the light-emitting diode lamp can be extended. An application in outdoor areas or in rooms with high humidity can thus be made possible.
  • the interior is preferably not only moisture-proof but even hermetically separated from the environment in order to protect the circuit as well as possible against environmental influences such as moisture, rain or dust.
  • the hollow body of the light-emitting diode lamp in the form of a tubular body with a longitudinal extent along the longitudinal axis of the tubular body, ie along the passage opening, which is larger, in particular very much larger than the diameter, can, for example, as a hollow cylinder with an arbitrary cross-sectional shape, in particular oval, rectangular or trapezoidal be, wherein a first end face may be closed with a first lid and a second end face with a second lid.
  • a hollow cylinder is thus understood by a person skilled in the art to mean a hollow body which has a lateral surface which encloses two openings (end faces) which are aligned substantially parallel to one another, wherein they may have any desired shape.
  • the cross section through the lateral surface in each plane has the same shape parallel to the openings or end faces.
  • the shape of the lid substantially corresponds to the outer contour of the cylinder cross-section.
  • the first and second covers may each be provided with at least one seal to increase the tightness of the lamp.
  • the hollow cylinder which can be used as part of the housing of the light emitting diode lamp, preferably has a substantially oval or rectangular cross section with an outer contour and an inner contour.
  • the term "oval" is to be interpreted in its broadest sense and can be understood, for example, as a circle or ellipse.
  • the outer contour may preferably have at least one receiving space on or in which the light-emitting diodes can be attached. Preferably, two Leucht stresses are provided for mounting the LEDs on the outer contour.
  • the hollow cylinder cross-section may have at least one insertion region on its inner contour, which serves to fasten the circuit.
  • the circuit which is connected to the driving of the light-emitting diodes with these can thus be arranged in a simple manner in the interior of the hollow cylinder.
  • the inner contour and / or the outer contour can be adjusted so as to save material and to design the light-emitting diode lamp as easily as possible.
  • the light-emitting diode lamp may have at least one cover for closing, at least one end face of the hollow cylinder.
  • the LED lamp has a first cover for closing a first end face of the hollow cylinder and a second cover for closing the second end face of the hollow cylinder.
  • the at least one cover, in particular the first or the second cover are preferably in the form of a cap with a base surface which substantially corresponds to the outer contour of the hollow cylinder and which has an edge which encloses an end region of the lateral surface of the hollow cylinder.
  • the at least one lid may further comprise a seal which has the shape of the base of the lid and is disposed between the lid and the hollow cylinder.
  • the first and / or the second cover may be permanently connected to the hollow body, in particular welded thereto, so as to separate the interior of the hollow body moisture-proof, in particular hermetic, from the environment.
  • the plurality of light-emitting diodes can be arranged on one or more plate-shaped conductor tracks, wherein the plate-shaped conductor tracks can be fastened to the outside of the hollow body.
  • the plate-shaped conductor track is inserted into an undercut Leucht redesignnut, wherein the width of the bottom of the receiving space corresponds to the plate-shaped conductor track.
  • the plate-shaped conductor track can be inserted between two first webs, which are formed parallel to one another at a distance of the width of the plate-shaped conductor track along the hollow cylinder.
  • the conductor can be coated with the LEDs with an advantageously transparent potting compound.
  • the LeuchtShnut or the space between two first webs after insertion of the conductor can be partially filled or up to the edges with the potting compound.
  • the circuit of an LED lamp according to the invention can be arranged completely or partly on at least one mounting plate which serves as a carrier.
  • the at least one mounting plate can preferably be introduced into the interior of the hollow body, in particular into the interior of the hollow cylinder.
  • the use of a mounting plate simplifies the manufacture of the circuit, which is simply inserted into the interior after external production.
  • the hollow cylinder may have on its inside at least one insertion groove and / or at least one second web, wherein the mounting plate is insertable into the interior, that it is with the at least one insertion and / or the at least one second web in engagement.
  • the at least one insertion groove and / or the at least one second web are defined by the at least one insertion region of the inner contour of the hollow cylinder cross section for the mounting plate.
  • the mounting plate between two L-shaped or T-shaped webs are introduced.
  • the Mounting plate also in a groove, in particular an undercut groove which is formed by a corresponding recess in the inner contour of the hollow cylinder cross section, be inserted.
  • the mounting plate may for example be attached to a hollow cylinder associated side of the first and / or the second lid so that the mounting plate during placement of the first and / or the second lid in the interior of the cylindrical Be hollow body or inserted into the provided for the mounting plate Einstecknuten or second webs.
  • the LED lamp may have two mounting plates, with one mounting plate supporting, for example, a power supply, while the other mounting plate carries other elements of the circuit, for example, the terminals to attach the terminals independently of the power supply can.
  • the power supply is housed in the interior of the hollow cylinder, but the heavy power supply must not be moved during assembly of the lamp to attach the electrical wiring.
  • the one mounting plate may preferably be attached to the first cover, the other mounting plate to the second cover.
  • By separating the interior into two subspaces it is possible, for example, to arrange the circuit components in a subspace, while the wiring is provided in the second subspace.
  • the hollow cylinder may have on its inside a third web, which is preferably arranged adjacent to and parallel to the Einstecknut and / or a second web.
  • the third web can be configured such that between the third web, the insertion groove and / or the second web, the region of the inside of the hollow space lying between the third web and the insertion groove and / or the second web and a region of the mounting plate Channel is formed, which is preferably formed as a closed channel.
  • the mounting plate may have an overhanging portion along the length of the hollow cylinder extending over the third land.
  • the third web appears in the cross section of the hollow cylinder as a projection on the inner contour of the cross section.
  • the channel may be used as a grounding channel by routing the grounded wiring through this grounding channel.
  • An LED lamp according to the invention may further comprise a cover for protecting the LEDs, which is attached to the outside of the hollow body.
  • the cover may preferably be transparent and in the form of a curved plate with an arcuate cross section perpendicular to its longitudinal side, wherein the arcuate cross section may have at its ends a widening or a bead.
  • the hollow cylinder may preferably have at least two cover grooves and / or two fourth webs, which may be arranged laterally of the at least one Leuchtstofpernut or at least a first web, so that the transparent cover by inserting into the cover grooves or the fourth undercut webs with the hollow cylinder can be brought into engagement.
  • the two cover grooves or webs can be identified in the hollow cylinder cross section as two fourth undercuts and / or as projections in the outer contour of the hollow cylinder cross section.
  • An LED lamp according to the invention may further comprise a suspension unit for mounting the LED lamp, which is in engagement with the outside of the hollow body.
  • the hollow cylinder preferably has on its outer side at least one, preferably two or more, hanging grooves and / or webs along the hollow cylinder, into or between which the suspension unit can be inserted.
  • the suspension unit may for example be formed like a bow, wherein at the ends projecting portions are provided which engage in the at least one groove or the webs.
  • the hollow cylinder cross-section of the LED lamp may have on its outer contour and / or inner contour further webs and / or grooves, which may be provided for example for the connection of the lid to the hollow cylinder or the attachment of further elements.
  • the inner contour of a corresponding recess and / or a corresponding projection in the outer contour and / or the outer contour of a corresponding recess and / or a corresponding Be adapted projection in the inner contour so as to save material and the light emitting diode lamp as easy as possible.
  • the design of the hollow cylinder with a large number of grooves and bars a simple and fast production of the LED lamp is possible because a large part of the components can be fixed by inserting into the grooves and lands on the cylinder and screw can be reduced to a minimum.
  • the LED lamp in particular the hollow body and / or the first and / or the second cover, may have at least one through-hole for contacting the LEDs with the circuit and / or for contacting the circuit with a power source.
  • the number of through holes is preferably kept as low as possible in order to make the installation as simple as possible and / or to reduce the risk of moisture permeability.
  • One or more seals are preferably embedded in each of the through-bores in order to make the hollow body moisture-proof with respect to the environment.
  • the hollow body of the LED lamp may for example consist of a metal or contain such. By using metal, good heat dissipation is possible, allowing for long-lasting operation of the LED lamp.
  • metal aluminum may preferably be selected.
  • the hollow cylinder, the first and / or the second cover, the mounting plate and / or the suspension unit is formed of metal.
  • a hollow cylinder for an LED lamp according to the invention is preferably extruded, so that the least possible manufacturing effort arises.
  • the mounting plate and / or the suspension unit can be extruded.
  • the transparent cover is preferably made of plastic and may also be formed by extrusion or injection molding.
  • the present invention further relates to a circuit for controlling at least one light source, in particular a light-emitting diode.
  • the circuit according to the invention is particularly suitable for use as a circuit in an LED lamp, as described above.
  • the circuit includes an operational amplifier, a transistor and a zener diode, wherein the transistor is fed back with its base to the output of the operational amplifier and with its emitter to the negative input of the operational amplifier, wherein the positive input of the operational amplifier is connected to a variably adjustable voltage source.
  • the power supply of the operational amplifier is voltage-limited by means of the zener diode.
  • the voltage for the LEDs can be increased to a voltage of up to 36 volts.
  • This increased power supply which is usually 15 volts, reduces copper losses and heat buildup when linking five boards to an LED luminaire, reducing the current by 50%.
  • the circuit may further comprise an infrared receiver and / or at least one network interface, such as a LAN interface, in particular WLAN interface or a PowerLAN or Powerline interface to set a control module for controlling the LEDs via remote access.
  • a network interface such as a LAN interface, in particular WLAN interface or a PowerLAN or Powerline interface to set a control module for controlling the LEDs via remote access.
  • Fig. 1 shows a light-emitting diode lamp 1 according to the invention, which has an elongated hollow cylinder 2, whose end faces are closed with lids 3.
  • the hollow cylinder 2 has a different cross-sectional shape from a circular shape, which may be referred to as substantially oval, trapezoidal or rectangular, wherein the basic shape is mainly characterized by two mutually parallel sides, which are connected by curved connecting sides.
  • the hollow cylinder 2 thus has substantially the shape of a tubular body.
  • the covers 3 have a base surface 30 with a shape that substantially coincides with the cross-sectional shape of the hollow cylinder 2, and a peripheral region 31 bordered by the base area 30, which surrounds the end region of the hollow cylinder 2.
  • the cover 3 further has two through holes 320 on its base surface 30, which enable a contacting of the circuit in the interior of the hollow cylinder 2 with sealing elements 32.
  • embodiments are also conceivable that have no through holes or a different number of through holes in the lid.
  • the base surface 30 four holes 330, which allow attachment of the lid 3 on the hollow cylinder 2 by means of screws 33.
  • the hollow cylinder 2 has on its outside Auf technicallyuten 24, in which a suspension unit 4, which is arc-shaped and has an undercut 40 at its ends, engages with the undercut 40.
  • the cylinder 2 further has in the region of the suspension unit 4 through holes 253, which are provided with seals 41, to allow a contacting of the circuit. These too can be like the through holes 330 are omitted in the lid 3 as needed or selected in the required number.
  • Fig. 2 again shows a perspective view of the light emitting diode lamp 1, wherein in the present case, the light emitting diodes having side of the cylinder 2 facing upward.
  • the lid 3 are attached.
  • LeuchtShen (not shown) on the outside of the hollow cylinder 2 is a conductor track (not shown), which has a plurality of light-emitting diodes inserted.
  • the conductor track and the LEDs arranged thereon are protected by a cover 6, which is likewise inserted into suitable cover grooves (not shown) on the outside of the cylinder 2.
  • Fig. 3 now shows the light-emitting diode 1 of FIGS. 1 and 2 in a perspective view, wherein the hollow cylinder 2 is not shown in order to represent the arrangement of the circuit 8 in the interior of the hollow cylinder 2 can.
  • a mounting plate 7a is attached on a cover 3.
  • a part 80 of the circuit 8 is fixed on this mounting plate 7a.
  • the cover 3 and the conductor track with the light-emitting diodes and the cover 6 are arranged relative to one another such that the end faces of the conductor track and the cover 6 touch the side of the cover 3 facing the hollow cylinder (not shown).
  • a second mounting plate 7b is mounted on the mounting brackets 81 for mounting a wiring (not shown) and a power supply 82. Below the mounting plates 7a and 7b, the suspension 4 and the seals 41 for contacting the circuit 8 can be seen.
  • FIG. 4 shows the cross section of the tubular body or hollow cylinder 2, wherein the Leucht stressesnut and Abdeckungsnuten 22 or webs for receiving the conductor track and the cover 6 are arranged on the downwardly oriented side of the cross section. Centered in the lower region of the hollow cylinder cross-section, a receiving space 21 with two opposing filament grooves is formed on its outer contour, which has a bottom region 210 and is formed by two undercut first webs 211 on the right and left of the surface 210. The surface 210 has through holes 212 for contacting the conductor track or the LEDs.
  • the receiving space with a transparent potting compound may be filled up to the edges of the webs 211 to protect the LED board from moisture and mechanical influences and a good heat distribution to provide due to a relation to the thermal conductivity of air improved thermal conductivity of the potting compound.
  • two cover grooves 22 are formed, which are formed by the first webs 211 and a fourth web 220.
  • the cross section of the hollow cylinder 2 on its inner side in each case a bracket-like web 23a, can engage in the screws 33 for fastening the lid 3.
  • the cross-section of the hollow body 2 on its inner contour on a plug-25, which by a flat portion 250 of the cylinder cross-section and a first second web 251st and forming a second second land 252 forming respective insertion grooves.
  • the web 252 forms on its insertion side 25 opposite side a groove 26 which is formed by a third web 260.
  • the groove 26 forms a grounding channel and its open side can be covered by a suitably formed mounting plate 7a, 7b, which is inserted into the insertion region 25.
  • the webs 251 and 260 go on their side opposite the grooves 25 and 26 opposite side in clip-like webs 23b, which serve to assemble the lid 3.
  • Fig. 5a The lid 3 is formed by the base 30, which has a similar cross-section as the hollow cylinder 2, wherein the base 30 is surrounded by a protruding edge 31, which after mounting the lid 3, an end portion of the Cylinder 2 encloses.
  • through holes 320 are provided for contacting the circuit and through holes 330 for attaching the lid 3 to the hollow cylinder.
  • Fig. 5b shows the lid 3 in a cross-sectional view, again the under Fig. 5a described features are shown.
  • Fig. 6a shows a perspective view Fig. 6b a side view of the mounting plate 7a.
  • the mounting plate 7 a has a base surface 70 which has a width which corresponds to the in Fig. 4 shown insertion area 25 corresponds. Furthermore, the mounting plate 7a has a protruding edge region 72 connected to the base surface 70 via a connecting piece 71, which is aligned perpendicular to the base surface. The protruding edge region 72 is dimensioned such that it corresponds to the in Fig. 4 shown groove 26 covered after assembly. Furthermore, the mounting plate 7 a on through holes 73 in order to allow wiring of the circuit 8.
  • the mounting plate 7b has a corresponding cross section, but differs in length from the mounting plate 7a, since the mounting plate 7b is made longer than the mounting plate 7a.
  • Fig. 7a shows a perspective view of a suspension unit 4, Fig. 7b
  • the suspension unit 4 has an arc-shaped base body 43 which has at its ends in each case one in the direction of the opposite end projecting undercut section 40.
  • the width of the undercut portion 40 may be formed differently on both sides and is in accordance with the corresponding suspension grooves 24 in the cross section of the hollow cylinder 2 according to Fig. 4 customized.
  • the main body 43 has a central through hole 42, can be passed through the fastening means, such as screws, for attachment to a ceiling.
  • the cover 6 of the track on which the LEDs are arranged is in Fig. 8a in perspective view, in Fig. 8b shown as a cross section.
  • the cover 6 has a curved plate 60 which has at its ends a bead-like extension 61 with a round cross-section.
  • the size of the extension 61 and the thickness of the plate-like body 60 are to the shape of the cover grooves 22, which in Fig. 4 are shown adapted, so that the cover 6 is inserted into the grooves 22 and is thus engaged with the hollow cylinder 2.
  • FIGS. 9 to 11 refer to the circuit for controlling at least one light source.
  • Fig. 9 shows a circuit diagram 8.
  • a supply voltage 801 either an AC voltage with 90 to 264 volts at 50 Hertz or a DC voltage in the range of 127 to 370 volts
  • a control voltage 802 is supplied.
  • the control voltage 802 may be a square wave voltage of 0 or 10 volts, which allows an alarm sequence or flash function.
  • a power supply 803 can thus remain permanently switched on.
  • the brightness of the LEDs to be controlled can be set by a control voltage 802 in the form of an applied fixed voltage between 0 and 10 volts.
  • the power supply 803 is operated with the supplied voltage, which provides a 36 V DC voltage for the power supply of LED modules 500.
  • a control module 804 is operated, which is responsible for setting the brightness or a pulsed lighting function. With the help of the control module 804, it is possible to limit the brightness or power consumption in special cases, in order to enable the use of the lamp even at very high ambient temperatures.
  • the control module 804 is designed to be able to request a maximum power of the LED modules 805 during a short-time exposure, so that the circuit according to the invention can also be used in exposure systems for high-speed recording or system illumination in camera test stations.
  • the LED modules 500 which preferably each contain 40 LEDs, are connected to one another with the aid of at least two supply lines for the electrical power supply and at least one control line, by means of which the power supply of the LEDs can be controlled.
  • Fig. 10 shows a circuit 810 having a supply contact 811, a ground contact 812 and a voltage contact 813, which are referred to as a so-called 3-wire contacting or circuit and in DE 10 2009 044 058.5 are disclosed. This disclosure is incorporated herein by reference in its entirety, as the present invention can be realized with appropriate circuits. Further shows Fig. 10 a circuit with a plurality of circuit units 814, which are each connected in parallel with each other. The circuit units 814 are shown in detail in FIG Fig. 11 shown.
  • Fig. 11 shows a circuit unit 814 with contacts 815, 816 and 817 for supply voltage, ground and control voltage. Via a supply line 818 five series-connected LEDs 50 are connected to the supply contact 815. The LEDs 50 are further connected via a transistor 820 and a line 819 to the ground contact 816. For every five light-emitting diodes 50, an operational amplifier 821 is provided for controlling the transistor 820. The base of the transistor 820 is connected to the output of the operational amplifier 821. The emitter of the transistor 820 is fed back to the negative input of the operational amplifier 821. The positive input of the operational amplifier 821 is connected to the contact 817 for the control voltage.
  • the power supply of the operational amplifier which is shown by way of example for the operational amplifier 821a, is connected to the supply line 818 via a zener diode 822 in order to limit the voltage or to enable an increased voltage supply of the LEDs 50.
  • the inventive circuit as shown in Fig. 11 allows operation of the LED modules with a flash function or a dimming function.
  • the present invention provides a light-emitting diode lamp which, on the one hand, is moisture-proof and thus covers a wide field of use and provides a simple and aesthetic construction of a housing, the number of parts to be assembled during manufacture being minimized.
  • the circuit according to the invention ensures a flash function and a dimming function and is suitable even under extreme environmental conditions to ensure lighting.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
EP12171091.7A 2011-06-08 2012-06-06 Lampe à diodes électroluminescentes et circuit de commande d'une source lumineuse Withdrawn EP2532955A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011050908A DE102011050908A1 (de) 2011-06-08 2011-06-08 Leuchtdiodenlampe und Schaltung zur Steuerung einer Lichtquelle

Publications (2)

Publication Number Publication Date
EP2532955A2 true EP2532955A2 (fr) 2012-12-12
EP2532955A3 EP2532955A3 (fr) 2013-04-10

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EP12171091.7A Withdrawn EP2532955A3 (fr) 2011-06-08 2012-06-06 Lampe à diodes électroluminescentes et circuit de commande d'une source lumineuse

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EP (1) EP2532955A3 (fr)
DE (2) DE102011050908A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017056110A1 (fr) * 2015-09-29 2017-04-06 Corvi Led Pvt Ltd Ensemble lampe tubulaire à del

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Publication number Priority date Publication date Assignee Title
DE102013102644B4 (de) 2013-03-14 2018-06-07 Phoenix Contact Gmbh & Co. Kg Leuchtvorrichtung mit zwei Schnittstellen sowie Steuervorrichtung und Leuchtsystem

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009044058A1 (de) 2009-09-18 2011-03-31 Müller, Dietmar Dimmbare Lichterkette und Schalter hierfür

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10108132A1 (de) * 2001-02-21 2002-08-29 Hella Kg Hueck & Co Treiber für LED-Leuchten im Kfz
JP2002260877A (ja) * 2001-03-01 2002-09-13 Mitsubishi Electric Corp 照明装置
US8115411B2 (en) * 2006-02-09 2012-02-14 Led Smart, Inc. LED lighting system
DK176593B1 (da) * 2006-06-12 2008-10-13 Akj Inv S V Allan Krogh Jensen Intelligent LED baseret lyskilde til erstatning af lysstofrör
CN102387642A (zh) * 2007-09-05 2012-03-21 马田专业公司 发光二极管棒
KR100827270B1 (ko) * 2007-11-05 2008-05-07 이채영 Ｌｅｄ 형광등
US20100102729A1 (en) * 2008-10-10 2010-04-29 Rethink Environmental Light emitting diode assembly
US20100124054A1 (en) * 2008-11-16 2010-05-20 Hsueh-Chen Chen Light-emitting diode lamp
US20100214779A1 (en) * 2009-02-23 2010-08-26 Ying-Feng Kao LED Fluorescent Tube
CN102415213A (zh) * 2009-04-23 2012-04-11 皇家飞利浦电子股份有限公司 用于led灯的驱动器
CN101929665A (zh) * 2009-06-18 2010-12-29 富准精密工业(深圳)有限公司 发光二极管灯具及其可调式灯头
CN101839405A (zh) * 2009-12-18 2010-09-22 深圳市成光兴实业发展有限公司 一种采用整体荧光转换技术的led日光灯
TWM382423U (en) * 2009-12-31 2010-06-11 Green Power Led Corp Tube-less LED fluorescent lamp
DE202010017009U1 (de) * 2010-12-23 2011-02-24 Fkb Gmbh Stableuchte

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009044058A1 (de) 2009-09-18 2011-03-31 Müller, Dietmar Dimmbare Lichterkette und Schalter hierfür

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017056110A1 (fr) * 2015-09-29 2017-04-06 Corvi Led Pvt Ltd Ensemble lampe tubulaire à del

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