利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

5 条记录 (耗时 0.009 秒)

    AC-DC SINGLE-INDUCTOR MULTIPLE-OUTPUT LED DRIVERS
    1.
    发明公开
    AC-DC SINGLE-INDUCTOR MULTIPLE-OUTPUT LED DRIVERS 审中-公开

    公开(公告)号：EP3286987A1

    公开(公告)日：2018-02-28

    申请号：EP15889511

    申请日：2015-04-23

    申请人： UNIV HONG KONG

    发明人： GUO YUE ,  LEE TING LEUNG ,  LI SINAN ,  TAN SIEW CHONG ,  LEE CHI KWAN ,  HUI SHU YUEN

    IPC分类号： H05B33/08

    CPC分类号： H05B33/0818 ,  H02M3/158 ,  H02M2001/009 ,  H05B33/0827 ,  Y02B20/348

    摘要： A single-stage AC-DC single-inductor multiple-output (SIMO) LED driver uses a single inductor (L) to drive multiple independent LED strings (34 1-34 n) with Power Factor Correction (PFC).The driver uses a diode bridge(20) to achieve initial AC to DC conversion. The output of the bridge (20) is provided to a buck converter whose output is shared with multiple LED strings by a time division multiplex circuit. Feedback is used to separately control the current supplied to each LED string by using a separate reference for each string and controlling the width of the current pulse provided to a string. Current balancing in every LED string can be achieved with the same voltage reference without the need for additional circuitry.

    METHODS FOR PARAMETER IDENTIFICATION, LOAD MONITORING AND OUTPUT POWER CONTROL IN WIRELESS POWER TRANSFER SYSTEMS
    4.
    发明公开
    METHODS FOR PARAMETER IDENTIFICATION, LOAD MONITORING AND OUTPUT POWER CONTROL IN WIRELESS POWER TRANSFER SYSTEMS 审中-公开
    VERFAHREN ZUR PARAMETERIDENTIFIZIERUNG，LASTÜBERWACHUNGUND AUSGANGSLEISTUNGSSTEUERUNG in DRAHTLOSENSTROMÜBERTRAGUNGSSYSTEMEN

    公开(公告)号：EP3031129A4

    公开(公告)日：2017-05-31

    申请号：EP14835258

    申请日：2014-08-06

    申请人： UNIV HONG KONG

    发明人： HUI SHU YUEN ,  LIN DEYAN ,  YIN JIAN ,  LEE CHI KWAN

    IPC分类号： H02J50/00 ,  B60L11/18 ,  H02J50/50

    CPC分类号： H02J50/12 ,  G01N27/02 ,  G01R21/133 ,  H02J5/005 ,  H02J7/025 ,  H02J50/40 ,  H02J50/50

    摘要： A method for identifying impedance related parameters in a wireless power transfer (WPT) system including n coils is disclosed. Said method includes determining optimum values of the impedance related parameters based on a set of measured input impedance by applying an evolutionary algorithm to solve optimum solutions. Wherein the set of measured input impedance includes an input impedance vector {right arrow over (Z)}=(Z1, Z2, . . . , Zm-1, Zm), each input impedance in the vector (Zk) measured at different frequencies fk, (k=1, 2, . . . m); and the impedance related parameters includes dll+1 representing a distance between the l-th coil and the l+1 coil (l=1, 2, . . . n−1) and Ci representing a capacitance of the capacitor connected to the i-th coil (i=1, 2, . . . n).

    摘要翻译： 公开了一种用于识别包括n个线圈的无线功率传输（WPT）系统中的阻抗相关参数的方法。 所述方法包括通过应用演化算法来求解最优解，基于一组测量的输入阻抗来确定阻抗相关参数的最优值。 其中，所测量的输入阻抗组包括输入阻抗矢量（Z 1，Z 2，...，Z m-1，Z m），矢量（Z k）中的每个输入阻抗在不同频率下测量 fk，（k = 1,2，... m）; 并且阻抗相关参数包括表示第l线圈和第1 + 1线圈（l = 1,2，...，n-1）之间的距离的dll + 1，以及表示连接到第i （i = 1,2，...，n）。