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公开(公告)号：US11588456B2
公开(公告)日：2023-02-21
申请号：US16882591
申请日：2020-05-25
发明人： Max G. Lagally , Matthew McLean Dwyer , Daniel Warren van der Weide , Abhishek Bhat , Francesca Cavallo , Divya Jyoti Prakash
摘要： Traveling-wave tube amplifiers and methods for making slow-wave structures for the amplifiers are provided. The SWSs include helical conductors that are self-assembled via the release of stressed electrically conductive strips from a sacrificial material. The helical conductors can be electroplated post-self-assembly to fortify the helix, reduce losses, and tailor the dimensions and operating parameters of the helix.
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公开(公告)号：US10229807B2
公开(公告)日：2019-03-12
申请号：US15519018
申请日：2015-10-13
发明人： Claudio Paoloni , Mauro Mineo
摘要： The present invention is a rectangular waveguide providing amplification of an electromagnetic wave via interaction with an electron beam in a linear interaction channel where the electron beam enters the waveguide at a first curved part of the waveguide, traverses the linear interaction channel and exits the waveguide at a second curved part of the waveguide.
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公开(公告)号：US20190035592A1
公开(公告)日：2019-01-31
申请号：US16043440
申请日：2018-07-24
申请人： THALES
发明人： Alain DURAND
摘要： A slow waveguide for travelling wave tube includes a central plate comprising a beam slip hole, rectilinear in the same direction as the longitudinal axis of the central plate, a bottom plate and a top plate closing the waveguide, respectively arranged on and under the central plate, and a slit folded in the form of a snake having its folds in the direction of the thickness of the guide.
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公开(公告)号：US09618168B1
公开(公告)日：2017-04-11
申请号：US15211717
申请日：2016-07-15
发明人： Tao Jiang , Hong Xu , Liqin Li , Chang Yang
IPC分类号： H01J13/46 , H01J7/44 , H01J17/34 , H01J19/78 , H01J23/16 , H01J29/96 , H01K1/62 , F21S4/28 , F21V23/02 , F21K9/60 , F21Y115/10 , F21Y103/10
CPC分类号： F21K9/60 , B23K1/0016 , B23K3/04 , B23K3/08 , B23K2101/42 , F21K9/27 , F21K9/272 , F21K9/278 , F21V3/049 , F21V3/061 , F21V3/10 , F21V7/22 , F21V17/101 , F21V23/02 , F21V29/83 , F21Y2103/10 , F21Y2115/10 , H05B33/0803 , H05B33/0815
摘要： An LED tube lamp includes a glass tube, two end caps, a power supply, and an LED light strip. The glass tube includes a main body region, two rear end regions, and two transition regions connecting the main body region and the rear end regions. The end cap is disposed at one end of the glass tube and the power supply is provided inside the end cap. The LED light strip is disposed inside the glass tube and has LED light sources disposed thereon. The LED light strip includes a bendable circuit sheet mounted on inner surface of the glass tube. The bendable circuit sheet of the LED light strip is formed with a freely extending end portion at one end, and the freely extending end portion is electrically connected to the power supply. The glass tube and the end cap are secured by a hot melt adhesive.
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公开(公告)号：US09609717B2
公开(公告)日：2017-03-28
申请号：US15046121
申请日：2016-02-17
发明人： Takaaki Yagi
CPC分类号： H05B33/089 , H05B33/0815 , H05B33/0821 , H05B33/0884 , Y02B20/341
摘要： In various embodiments, a light-emitting apparatus is disclosed. In one example, the light-emitting apparatus comprises a substrate, an LED string mounted on the substrate, in which LED string a plurality of LEDs are connected in series, a power supply path connected in series to the LED string, and a plurality of protection elements, each protection element having a first node commonly connected to the power supply path and a second node connected between a pair of the LEDs in the series, wherein the protection elements include capacitors or zener diodes, and an AC impedance of each protection element is smaller than an impedance between the pair of LEDs and a case ground.
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公开(公告)号：US09288866B2
公开(公告)日：2016-03-15
申请号：US13703717
申请日：2011-06-16
申请人： Takaaki Yagi
发明人： Takaaki Yagi
CPC分类号： H05B33/089 , H05B33/0815 , H05B33/0821 , H05B33/0884 , Y02B20/341
摘要： A light-emitting apparatus including a substrate, an LED string mounted on the substrate, the LED string in which a plurality of light-emitting diodes D1-D6 are connected in series, a power supply line 13 (13a, 13b) connected in series to the LED string, and a plurality of protection capacitors C (C1-C5), each being arranged between a connection N (N1-N5) between at least one set of light-emitting diodes in the LED string and the power supply line 13 and having an impedance smaller than an impedance between the connection N and an case ground.
摘要翻译： 包括基板，安装在基板上的LED串，发光二极管D1-D6串联连接的LED串的发光装置，串联连接的电源线13（13a，13b） 以及多个保护电容器C（C1-C5），其分别设置在LED串中的至少一组发光二极管与电源线13之间的连接N（N1-N5）之间 并且具有比连接N和壳体接地之间的阻抗小的阻抗。
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公开(公告)号：US08890421B2
公开(公告)日：2014-11-18
申请号：US13760881
申请日：2013-02-06
申请人： Analog Devices, Inc.
发明人： Jonathan Kraft
IPC分类号： H05B37/00 , H05B39/00 , H05B41/00 , H01J7/44 , H01J13/46 , H01J17/34 , H01J19/78 , H01J23/16 , H05B33/08 , H05B37/02
CPC分类号： H05B33/0851 , H05B33/0809 , H05B33/0812 , H05B33/0815 , H05B33/0827 , H05B33/0884 , H05B37/02 , Y02B20/341 , Y02B20/347
摘要： A line voltage control circuit for use with a multi-string LED drive system which provides a common line voltage for multiple LED strings that are connected to respective current sink circuits at respective junctions. An error amplifier receives the minimum junction voltage and a reference ‘desired junction voltage’ at respective inputs, and a voltage regulator outputs the line voltage in response to a voltage applied to a feedback input. A comparator toggles an output when the maximum junction voltage (Vmax) exceeds a reference limit (Vlimit). A multiplexer receives the error amplifier output and a fixed voltage at respective inputs and provides one of the signals to the regulator's feedback input in response to the comparator output. When Vmax>Vlimit, the fixed voltage is provided to the feedback input and the line voltage is reduced, thereby protecting low voltage current sinks from potentially damaging high voltages.
摘要翻译： 一种用于多串LED驱动系统的线路电压控制电路，其为在各个连接处连接到相应的电流吸收电路的多个LED串提供公共线路电压。 误差放大器在相应的输入处接收最小结电压和参考“期望的结电压”，并且电压调节器响应于施加到反馈输入的电压而输出线电压。 当最大结电压（Vmax）超过参考极限（Vlimit）时，比较器切换输出。 多路复用器在相应的输入处接收误差放大器输出和固定电压，并响应于比较器输出将一个信号提供给调节器的反馈输入。 当Vmax> Vlimit时，固定电压被提供给反馈输入并且线路电压降低，从而保护低电压电流吸收器免受潜在的破坏性高电压。
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公开(公告)号：US08169146B2
公开(公告)日：2012-05-01
申请号：US12485974
申请日：2009-06-17
申请人： Koichi Naitoh , Akiyoshi Maehara
发明人： Koichi Naitoh , Akiyoshi Maehara
CPC分类号： H05B41/042
摘要： A metal halide lamp capable of delaying the rate of deformation in an electrostrictive phenomenon caused by the discharge of a ferroelectric ceramic capacitor when dielectric breakdown is initiated between the electrodes of an arc tube thereby preventing breakage accident, wherein a starting circuit, housed in parallel connection together with an arc tube in an outer tube of a metal halide lamp has in serial connection, a ferroelectric ceramic capacitor that is charged and discharged when a voltage at a predetermined coercive voltage or higher is applied thereby outputting a starting pulse at a high voltage from a ballast, a semiconductor switch that turns to a conduction state when a voltage of a predetermined breakover voltage or higher is applied, and a time constant control resistor that delays the discharge time of electric charges discharged from the capacitor when dielectric breakdown is initiated in the arc tube.
摘要翻译： 一种金属卤化物灯，其能够在电弧管的电极之间引发介电击穿时引起的强电介质陶瓷电容器的放电引起的电致伸缩现象的变形率，从而防止断裂事故，其中并联连接的起动电路 与金属卤化物灯的外管中的电弧管串联连接时，施加预定的矫顽电压以上的电压时进行充放电的铁电陶瓷电容器，从而从高压输出起始脉冲 镇流器，当施加预定的突破电压或更高的电压时变为导通状态的半导体开关;以及时间常数控制电阻器，其在介电击穿开始时延迟从电容器放电的电荷的放电时间 电弧管。
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公开(公告)号：US08164266B2
公开(公告)日：2012-04-24
申请号：US12591244
申请日：2009-11-13
申请人： Tetsu Okamoto , Hiroyuki Ishii , Minoru Fukuda
发明人： Tetsu Okamoto , Hiroyuki Ishii , Minoru Fukuda
IPC分类号： H01J7/44 , H01J13/46 , H01J17/34 , H01J19/78 , H01J23/16 , H01J29/96 , H01J17/04 , H01J61/04 , H01K1/62 , H05B41/16 , H05B41/24 , H05B37/02 , H05B39/04 , H05B41/36 , G05F1/00
CPC分类号： H05B41/2928 , H05B41/2888 , Y02B20/202 , Y02B20/208
摘要： A high pressure discharge lamp lighting apparatus includes a high pressure discharge lamp and a power supply apparatus, wherein in a steady state lighting operation, an alternating current of a steady state lighting frequency and alternating current of a low frequency are supplied by turns to the high pressure discharge lamp, and wherein in a small electric power lighting in which electric power to be applied is smaller than that of the steady state lighting, alternating current of a small electric power lighting frequency and direct current are supplied by turns to the high pressure discharge lamp.
摘要翻译： 高压放电灯点灯装置包括高压放电灯和电源装置，其中在稳态点亮操作中，将稳态点亮频率和低频交流电的交流转向高电平 压电放电灯，其中，在施加电力小于稳态点亮的小电力照明中，小电力照明频率和直流电流的交流电转向高压放电 灯。
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公开(公告)号：US08093816B2
公开(公告)日：2012-01-10
申请号：US12513295
申请日：2007-07-27
申请人： Keiji Hayashi
发明人： Keiji Hayashi
CPC分类号： H01J61/54
摘要： A cold cathode tube lamp which can be lighted easily when the ambient temperature is low. The cold cathode tube lamp comprises discharge tubes having a pair of electrodes and being driven when a voltage having an AC component is supplied thereto, and ballast capacitors connected with at least one of the pair of electrodes. The ballast capacitor is arranged to come into thermal contact with the discharge tube and to increase the capacitance as the surface temperature of the ballast capacitor decreases.
摘要翻译： 冷阴极管灯，当环境温度低时，可以轻松点亮。 冷阴极管灯包括具有一对电极的放电管，并且当提供具有AC分量的电压时被驱动，以及与所述一对电极中的至少一个连接的镇流电容器。 镇流电容器布置成与放电管热接触，并且随着镇流电容器的表面温度降低而增加电容。
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