会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 51. 发明申请
    • CONSTANT TIME CONTROLLER AND CONTROLLING METHOD FOR SWITCHING REGULATOR
    • 持续时间控制器和控制方法,用于切换调节器
    • US20130063102A1
    • 2013-03-14
    • US13610524
    • 2012-09-11
    • Wei Chen
    • Wei Chen
    • G05F1/46
    • H02M3/157H02M3/156H02M2003/1566
    • The present invention relates to a constant time controller, controlling method thereof, and a switching regulator. In one embodiment, a controlling method for a switching regulator, can include: (i) detecting an output voltage and an inductor current of the switching regulator; (ii) determining if there is a transient change on a load of the switching regulator by using the output voltage and a first reference voltage; (iii) generating a control signal using the output voltage, the inductor current, and a second reference voltage; (iv) controlling a switch of the switching regulator to maintain the output voltage substantially constant when no transient change is determined on the load; and (v) deactivating the control signal to keep the inductor current changing along with a variation tendency of an output current of the switching regulator when a transient change is determined on the load.
    • 本发明涉及恒定时间控制器,其控制方法和开关调节器。 在一个实施例中,用于开关调节器的控制方法可以包括:(i)检测开关调节器的输出电压和电感器电流; (ii)通过使用所述输出电压和第一参考电压来确定所述开关调节器的负载是否存在瞬时变化; (iii)使用所述输出电压,所述电感器电流和第二参考电压产生控制信号; (iv)当在负载上确定瞬态变化时,控制开关调节器的开关以保持输出电压基本恒定; 以及(v)当在负载上确定瞬态变化时,停止控制信号以保持电感器电流随着开关调节器的输出电流的变化趋势而改变。
    • 54. 发明申请
    • METHODS AND APPARATUS FOR COLOR UNIFORMITY
    • 颜色均匀性的方法和装置
    • US20130010012A1
    • 2013-01-10
    • US13619940
    • 2012-09-14
    • Gabriel Gheorghe MarcuWei Chen
    • Gabriel Gheorghe MarcuWei Chen
    • G09G5/10
    • H04N1/6055G09G5/02G09G2320/0233G09G2320/0242G09G2320/029G09G2360/145
    • Methods and apparatus for achieving color and luminance uniformity in color output devices. In one embodiment, measurements of luminance and chrominance are taken at various regions of the display surface for a range of color inputs. Using the collected data, a color volume is formed for each of the measured regions. This color volume comprises a set of all colors producible at the measured region. The color volumes for each of the measured regions are then used to generate a common color gamut, i.e., a volume of colors that are producible in each of the measured regions. A gamut mapping can then be performed for all or a portion of the positions on the display surface to a target color gamut. Input data for the gamut mapping process may be determined by conventional interpolative techniques.
    • 用于实现彩色输出设备的颜色和亮度均匀性的方法和设备。 在一个实施例中,对于一系列颜色输入,在显示表面的各个区域处获取亮度和色度的测量。 使用收集的数据,为每个测量区域形成颜色体积。 该颜色体积包括在测量区域可生产的所有颜色的集合。 然后,每个测量区域的颜色体积用于产生公共色域,即,在每个测量区域中可生产的颜色体积。 然后可以对显示表面上的位置的全部或一部分执行色域映射到目标色域。 用于色域映射处理的输入数据可以通过常规内插技术来确定。
    • 55. 发明申请
    • FLOW PATTERN TRANSITION PIPE
    • 流动图形转换管
    • US20120318394A1
    • 2012-12-20
    • US13527848
    • 2012-06-20
    • Lishun HUWei Chen
    • Lishun HUWei Chen
    • F24H9/12
    • B65G53/52
    • A flow pattern transition pipe for use in a pneumatic conveyance system is provided. The flow pattern transition pipe comprises a first expansion pipe section gradually increasing in inner diameter in an axial direction, a second shrink pipe section following the first section from a maximum inner diameter end of the first section and gradually reducing in inner diameter in an axial direction away from the first section, and a third pipe section following the second section from a minimum inner diameter end of the second section, with a substantially identical inner diameter smaller than a minimum inner diameter of the first section. An axial length of the first section is from about three to about five times of the axial length of the second section.
    • 提供了一种用于气动输送系统的流动型过渡管。 流动型过渡管包括沿轴向内径逐渐增加的第一膨胀管段,从第一部分的最大内径端跟随第一部分的第二收缩管部分,并且沿轴向方向逐渐减小内径 以及与第二部分的最小内径端部相邻的第二部分的第三管部分,其内径基本相同于第一部分的最小内径。 第一部分的轴向长度为第二部分的轴向长度的约三到五倍。
    • 58. 发明申请
    • SCR DIMMING CIRCUIT AND METHOD
    • SCR调试电路和方法
    • US20120256553A1
    • 2012-10-11
    • US13411738
    • 2012-03-05
    • Shenglun ChenWei ChenXiaoru Xu
    • Shenglun ChenWei ChenXiaoru Xu
    • H05B37/02
    • H05B33/0809H05B33/0845Y02B20/348
    • The present invention relates to an SCR dimming circuit and method for regulating the luminance of an LED load. In one embodiment, an SCR dimming circuit can include: an SCR element that generates a lack-phase AC voltage based on a sinusoidal AC supply; a rectifier bridge that generates a lack-phase DC voltage based on the lack-phase AC voltage; a conduction angle generator that receives the lack-phase DC voltage, and generates a controlling signal representative of a conduction angle of the SCR element; and a dimming signal generator that generates a dimming signal to regulate luminance of the LED load, where the dimming signal generator receives the controlling signal, an adjustable signal, and a clamping voltage, an amplitude of a dimming phase angle range is selected by a fixed signal determined by the clamping voltage, and the dimming phase angle range may be shifted by regulating the adjustable signal.
    • 本发明涉及一种用于调节LED负载亮度的SCR调光电路和方法。 在一个实施例中,SCR调光电路可以包括:SCR元件,其基于正弦AC电源产生欠相AC电压; 整流桥,基于缺相交流电压产生欠相直流电压; 接收缺相相电压的导通角发生器,并产生表示SCR元件的导通角的控制信号; 以及调光信号发生器,其产生调光信号以调节LED负载的亮度,其中调光信号发生器接收控制信号,可调信号和钳位电压,通过固定的选择信号选择调光相位角范围的幅度 通过钳位电压确定的信号和调光相位角范围可以通过调节可调信号而偏移。
    • 59. 发明申请
    • START AUXILIARY DEVICE, BALLAST AND ILLUMINATION DEVICE
    • 启动辅助装置,压力和照明装置
    • US20120248996A1
    • 2012-10-04
    • US13515290
    • 2010-11-19
    • Wei ChenShudong Li
    • Wei ChenShudong Li
    • H05B41/14
    • H05B41/295H05B41/044
    • The present invention relates to a start auxiliary device for driving a gas discharge lamp cluster, the gas discharge lamp cluster comprising n gas discharge lamps connected in series, the start auxiliary device comprises: a primary start circuit including a primary start capacitor (C1) and a primary start inductor (L1); and a step-up unit (T1) including a first terminal (101), a second terminal (102), and a third terminal (103). When the step-up unit (T1) is excited by the primary start capacitor (C1) and the primary start inductor (L1) of the primary start circuit, the step-up unit (T1) outputs a high auxiliary start voltage at the third terminal (103) to start the respective gas discharge lamps in the gas discharge lamp cluster. In addition, the present invention also relates to a ballast having the start auxiliary device and an illumination device having the ballast.
    • 本发明涉及一种用于驱动气体放电灯组的起动辅助装置,该气体放电灯组包括串联连接的n个气体放电灯,起动辅助装置包括:一次启动电路,包括一次启动电容器(C1)和 初级电感(L1); 以及包括第一端子(101),第二端子(102)和第三端子(103)的升压单元(T1)。 当升压单元(T1)由初级启动电路(C1)和初级启动电路(L1)激励时,升压单元(T1)在第三级输出高的辅助启动电压 端子(103)启动气体放电灯组中的各个气体放电灯。 此外,本发明还涉及具有启动辅助装置的镇流器和具有镇流器的照明装置。
    • 60. 发明申请
    • SCR DIMMING CIRCUIT AND METHOD
    • SCR调试电路和方法
    • US20120242237A1
    • 2012-09-27
    • US13402025
    • 2012-02-22
    • Shenglun ChenWei ChenXiaoru Xu
    • Shenglun ChenWei ChenXiaoru Xu
    • H05B37/02
    • H05B33/0815H05B33/0845Y02B20/348
    • The present invention relates to a silicon-controlled rectifier (SCR) dimming circuit and method for regulating the luminance of a light-emitting diode (LED) load. In one embodiment, an SCR dimming circuit can include: an SCR rectifying circuit having an SCR element that receives an AC power supply, and generates a lack-phase AC voltage; a rectifier bridge that converts the lack-phase AC voltage to a lack-phase DC voltage, where the lack-phase DC voltage is filtered through a filter capacitor to generate a smooth DC voltage; a conduction phase angle signal generator that receives the lack-phase DC voltage and generates a controlling signal indicating a conduction phase angle range of the SCR element; and a dimming signal generator that compares the controlling signal and a slope reference signal to output a dimming signal to control the luminance of the LED load.
    • 本发明涉及一种用于调节发光二极管(LED)负载的亮度的硅控整流器(SCR)调光电路和方法。 在一个实施例中,SCR调光电路可以包括:SCR整流电路,其具有接收AC电源的SCR元件,并且产生欠相AC电压; 将缺相相交流电压转换为欠相直流电压的整流桥,其中缺相相电压通过滤波电容滤波以产生平滑的直流电压; 导通相位角信号发生器,其接收所述欠相位的直流电压,并产生表示所述SCR元件的导通相位角范围的控制信号; 以及调光信号发生器,其比较控制信号和斜率参考信号以输出调光信号以控制LED负载的亮度。