STROMVERSORGUNG F R LUMINESZENZDIODEN
    5.
    发明公开
    STROMVERSORGUNG F R LUMINESZENZDIODEN 有权
    STROMVERSORGUNGFÜRLUMINESZENZDIODEN

    公开(公告)号:EP1520449A2

    公开(公告)日:2005-04-06

    申请号:EP03762563.9

    申请日:2003-06-30

    IPC分类号: H05B33/08 F21K7/00

    摘要: The invention relates to a control circuit (200a, 200b) for supplying constant power based on a transformer method in which a triangular alternating current (ID) that periodically varies by a DC value flows through light-emitting diodes (D1,..., DN). According to said method, a circuit-related measure is used such that both the charging current and the discharging current (IL1) of an inductive reactance (XL1) which acts as a storage inductor (L1) and is serially connected to the light-emitting diodes (D1,..., DN) flow through the light-emitting diodes (D1, , DN) as diode current (ID) in order to filter network harmonics. Said method has the advantage of substantially reducing the total power loss (PV, ges) of the LED lighting module (100). In one embodiment of the invention, the ceramic printed board (102) of the inventive LED lighting module (100) is provided with a direct line current supply unit (104, 108) which is mounted in a transparent housing (106) in order to be protected from mechanical damage, said transparent housing (106) comprising a highly transparent polymer material (110) that is used as an optically active lens area.

    摘要翻译: 电源包括与发光二极管(LED)(D1..DN)串联提供的感抗(L1)。 开关级(M1,Q1)通过超过相应控制电压(UG,UBE)的阈值在电抗的充电和放电过程之间切换。 平行于LED的串联连接并且在第一开关级被阻塞时通过电抗释放到LED的至少一部分放电电流的电抗提供续流电流路径。 还提供了独立权利要求(1)向LED提供电源的方法(2)由LED串联组成的LED照明模块(3)制造LED照明模块的方法(4)LED照明模块的操作方法。

    VERFAHREN ZUR HERSTELLUNG EINER LED-LICHTQUELLE
    6.
    发明公开
    VERFAHREN ZUR HERSTELLUNG EINER LED-LICHTQUELLE 有权
    方法用于生产LED光源

    公开(公告)号:EP1299908A1

    公开(公告)日:2003-04-09

    申请号:EP01984193.1

    申请日:2001-07-06

    摘要: The method comprises the following steps: the printed circuit board is provided with an insulating layer, (with the exception of the contact surfaces); contact bumps or contact layers with a maximum height of 100 νm, consisting of a solder material with a good thermal conductivity, are either applied to one surface of the contact electrodes of the LED dice, or contact layers with a thickness of 1-50 νm are applied to the contact surfaces of the printed circuit board; the LED dice are pressed and soldered onto the contact surfaces of the printed circuit board, or in their immediate vicinity, using flip-chip technology, the contact surface of said dice facing downwards. Said method can be modified so that instead of the soldering process, metallic contact bumps or contact layers are used and the LED dice are pressed in exact register onto the free contact surfaces of the printed circuit board and are fixed using a thermocompression procedure. Said method can also be modified for LEDs comprising contacts on their front faces. The method permits the production of LED arrays with an intense luminosity, despite their reduced dimensions.

    WEISSER LED-STRAHLER MIT KEGELFOERMIGEM REFLEKTOR UND PLANAREN FACETTEN
    7.
    发明公开
    WEISSER LED-STRAHLER MIT KEGELFOERMIGEM REFLEKTOR UND PLANAREN FACETTEN 有权
    白色LED聚光灯的锥形反射镜和平面切面

    公开(公告)号:EP1766695A2

    公开(公告)日:2007-03-28

    申请号:EP05751006.7

    申请日:2005-05-25

    IPC分类号: H01L33/00

    摘要: The invention relates to an LED spotlight which comprises an arrangement with at least one LED (8) above which a color conversion substance (9) is disposed and a lens system. Said lens system is produced from a substantially transparent material and deviates incident light by total reflection from the LED arrangement in the direction of an exit surface (3). The base of the conical lens system (1) can have a polygonal shape. The outer wall (2) of the conical lens system (1) can be provided with planar facets (6) in at least some sections. The color conversion material (9) can be provided above the LED arrangement as a cuboid structure.