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23 条记录 (耗时 0.022 秒)

    LED module and method for operating at least one LED
    4.
    发明授权
    LED module and method for operating at least one LED 失效
    用于操作至少一个LED的LED模块和方法

    公开(公告)号：US08237382B2

    公开(公告)日：2012-08-07

    申请号：US12526251

    申请日：2007-02-13

    申请人： Thomas Siegmund ,  Adrian Zingalik

    发明人： Thomas Siegmund ,  Adrian Zingalik

    IPC分类号： H05B41/16 ,  H05B41/24

    CPC分类号： H05B33/0815 ,  H05B33/0809 ,  Y02B20/346

    摘要： An LED module (10) for operating at least one LED (18) comprising an input (E1, E2) adapted for coupling to a DC voltage source (UE); an output (A1, A2) adapted for coupling to the at least one LED (18); a filter device (14); and a DC-DC converter (16); wherein the filter device (14) and the DC-DC converter (16) are coupled in series between the input (E1, E2) and the output (A1, A2), and wherein the output (DCA1, DCA2) of the DC-DC converter (16) is coupled to the output (A1, A2) of the LED module (10); wherein the LED module further comprises an electronic switch (Q1), which is configured to couple the DC-DC converter (16) to the input (E1, E2) of the LED module (10) and to decouple it therefrom.

    摘要翻译： 一种用于操作至少一个LED（18）的LED模块（10），包括适于耦合到DC电压源（UE）的输入端（E1，E2）; 适于耦合到所述至少一个LED（18）的输出（A1，A2）; 过滤装置（14）; 和DC-DC转换器（16）; 其中所述滤波器装置（14）和所述DC-DC转换器（16）串联耦合在所述输入端（E1，E2）和所述输出端（A1，A2）之间，并且其中所述DC- DC转换器（16）耦合到LED模块（10）的输出（A1，A2）; 其中所述LED模块还包括电子开关（Q1），其被配置为将所述DC-DC转换器（16）耦合到所述LED模块（10）的输入端（E1，E2）并将其从其分离。

    Manufacture of thick preform composites via multiple pre-shaped fabric mat layers
    5.
    发明申请
    Manufacture of thick preform composites via multiple pre-shaped fabric mat layers 失效
    通过多个预成型织物垫层制造厚预成型复合材料

    公开(公告)号：US20050266203A1

    公开(公告)日：2005-12-01

    申请号：US10852992

    申请日：2004-05-25

    申请人： Mark La Forest ,  Nabil Gharbieh ,  Raymond Cipra ,  Alan Fatz ,  Thomas Siegmund

    发明人： Mark La Forest ,  Nabil Gharbieh ,  Raymond Cipra ,  Alan Fatz ,  Thomas Siegmund

    IPC分类号： B29B11/16 ,  B29C70/30 ,  B29C70/38 ,  B32B3/02 ,  D04H1/00 ,  D04H13/00 ,  F16D69/02

    CPC分类号： B29B11/16 ,  B29C70/305 ,  B29L2031/7482 ,  D04H1/593 ,  D04H1/60 ,  D04H1/76 ,  F16D69/023 ,  F16D2069/008 ,  Y10T428/213

    摘要： A preform for a carbon-carbon composite part (55) comprising multiple layers of fibrous mats (51, 52, 53) wherein each of the fibrous mats (51, 52, 53) comprises a random carbon-containing fibrous matrix (11) within which is distributed a polymeric binder and wherein adjacent mat layers (51, 52, 53) are bound together by additional polymer binder, stitching and interlocking tabs. The preform of the present invention may be an aircraft landing system brake disc. Also, a method of manufacturing a thick multi-layer composite preform. The method includes the steps of: providing an optionally reconfigurable tool including a perforated screen through which a vacuum can be drawn; delivering chopped fibers (b), such as pitch fibers, polyacrylonitrile fibers, or mixtures thereof, to said tool while drawing vacuum therethrough, to form a fibrous object; delivering binder (c), for instance in the form of a spray, to said fibrous object; melting or curing said binder (d), for instance by the application of heat or ultraviolet light, to make a fibrous mat (51, 52, 53); assembling, preferably in the substantial absence of cutting or other mechanical modification, a plurality of said fibrous mats (51, 52, 53) and additional binder into the shape of a preform (e); and heat-pressing the resulting mat assembly (f) into a finished thick preform (55).

    摘要翻译： 一种用于碳 - 碳复合材料部件（55）的预成型件，其包括多层纤维垫（51,52,53），其中每个纤维垫（51,52,53）包括含有无规碳的纤维基质（11） 其分布有聚合物粘合剂，并且其中相邻的垫层（51,52,53）通过另外的聚合物粘合剂，缝合和互锁接头结合在一起。 本发明的预成型件可以是飞机着陆系统制动盘。 另外，制造厚的多层复合预型体的方法。 该方法包括以下步骤：提供可选地可重新配置的工具，其包括穿孔筛网，通过该筛孔可抽出真空; 将所述短纤维（b），例如沥青纤维，聚丙烯腈纤维或其混合物输送到所述工具，同时抽真空从而形成纤维物体; 将粘合剂（c）（例如以喷雾的形式）递送到所述纤维物体; 熔融或固化所述粘合剂（d），例如通过施加热或紫外线来制备纤维垫（51,52,53）; 多个所述纤维垫（51,52,53）和预成型件（e）形状的另外的粘合剂组合，优选地基本不存在切割或其它机械改性。 并将所得的垫组件（f）热压成成品的厚预成型件（55）。

    Electronic ballast for a lamp
    6.
    发明授权
    Electronic ballast for a lamp 失效
    电子镇流器灯

    公开(公告)号：US07352079B2

    公开(公告)日：2008-04-01

    申请号：US11402901

    申请日：2006-04-13

    申请人： Markus Heckmann ,  Alfons Lechner ,  Thomas Siegmund

    发明人： Markus Heckmann ,  Alfons Lechner ,  Thomas Siegmund

    IPC分类号： H02J3/02

    CPC分类号： H05B41/282 ,  Y02B20/183

    摘要： An electronic ballast for a lamp has a DC voltage connection; a switching unit having a supply voltage with the DC voltage connection being coupled thereto, and a first capacitor coupled between the supply voltage connection and a reference potential; an AC voltage connection, at which a voltage can be made available which has at least one AC component. The series circuit includes a first nonreactive resistor and a first diode, as a second nonreactive resistor coupled between the AC voltage connection and the supply voltage connection, a connection point between the first diode and the second nonreactive resistor, and a second capacitor coupled between the connection point and the reference potential. The first capacitor and the second nonreactive resistor are dimensioned such that the average voltage drop across the second nonreactive resistor is greater than or equal to the average voltage drop across the first capacitor.

    摘要翻译： 灯的电子镇流器具有直流电压连接; 具有与所述直流电压连接耦合的电源电压的开关单元和耦合在所述电源电压连接和参考电位之间的第一电容器; AC电压连接，在该AC电压连接处可以获得具有至少一个AC分量的电压。 串联电路包括第一非反应电阻器和第一二极管，作为耦合在AC电压连接和电源电压连接之间的第二非反应电阻器，第一二极管和第二非反应电阻器之间的连接点，以及耦合在第二非反应电阻器 连接点和参考电位。 第一电容器和第二非反应电阻器的尺寸使得第二非反应电阻器两端的平均电压降大于或等于第一电容器两端的平均电压降。

    Manufacture of functionally graded carbon-carbon composites
    9.
    发明申请
    Manufacture of functionally graded carbon-carbon composites 失效
    功能梯度碳 - 碳复合材料的制造

    公开(公告)号：US20050266220A1

    公开(公告)日：2005-12-01

    申请号：US10852933

    申请日：2004-05-25

    申请人： Mark La Forest ,  Charles Parker ,  Frank Dillon ,  Thomas Siegmund ,  Raymond Cipra ,  Alan Fatz ,  Peter Braunisch ,  Tobey Cordell

    发明人： Mark La Forest ,  Charles Parker ,  Frank Dillon ,  Thomas Siegmund ,  Raymond Cipra ,  Alan Fatz ,  Peter Braunisch ,  Tobey Cordell

    IPC分类号： B32B18/00 ,  C04B35/00 ,  C04B35/83 ,  D04H1/00 ,  D04H1/72 ,  D04H3/00 ,  F16D69/02

    CPC分类号： B32B18/00 ,  B32B2315/02 ,  C04B35/83 ,  C04B2235/48 ,  C04B2235/614 ,  C04B2237/385 ,  C04B2237/584 ,  C04B2237/62 ,  D04H1/72 ,  F16D69/023 ,  Y10T428/249924

    摘要： Annular brake disc preform (15), wherein 40 to 80 layers of reinforcement fibers of at least two different lengths (11, 19) ranging from 10-60 mm are distributed in a planar gradient throughout the body of the preform, with the reinforcement fibers located near the exterior planes of the disc being predominately shorter fibers (11) and with the reinforcement fibers located in the central planes of the disc being predominately longer fibers (19). Also, process of making carbon-carbon composite preforms by: providing chopped pitch or PAN fibers (11, 19) of at least two different lengths; directing a robotic spraying apparatus to spray the chopped fibers into an annular mold (5) in 40 to 80 concentric iterations of chopped fiber deposition to provide a matrix of fibers in the mold; depositing a curable binder into the mold to intermix the binder with the fiber matrix; compressing the fiber matrix and curable binder within the mold; curing the binder to form a preform matrix; filling the preform matrix with pitch to form a pitch matrix; and subjecting the pitch matrix to chemical vapor deposition to form a carbon-carbon composite preform (15).

    摘要翻译： 环形制动盘预成型件（15），其中具有10-60mm的至少两个不同长度（11,19）的40至80层增强纤维以预制件的整个主体分布在平面梯度中，其中增强纤维 位于盘的外部平面附近的主要是较短的纤维（11）并且位于盘的中心平面中的增强纤维主要是较长的纤维（19）。 另外，通过以下方式制造碳 - 碳复合预型件的方法：提供至少两个不同长度的短切沥青或PAN纤维（11,19）; 引导机器人喷涂设备以短时间纤维沉积的40至80次同心迭代将切碎的纤维喷射到环形模具（5）中以在模具中提供纤维矩阵; 将可固化粘合剂沉积到模具中以使粘合剂与纤维基质混合; 在模具内压缩纤维基质和可固化粘合剂; 固化粘合剂以形成预成型体基体; 用间距填充预成型体基体以形成间距矩阵; 并对沥青基体进行化学气相沉积以形成碳 - 碳复合预制件（15）。