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    Wireless capacitive power transfer designs and systems
    1.
    发明授权
    Wireless capacitive power transfer designs and systems 有权

    公开(公告)号：US11228204B2

    公开(公告)日：2022-01-18

    申请号：US16079782

    申请日：2017-03-22

    申请人： SAN DIEGO STATE UNIVERSITY RESEARCH FOUNDATION ,  Chunting C. Mi ,  Fei Lu ,  Hua Zhang

    发明人： Chunting C. Mi ,  Fei Lu ,  Hua Zhang

    IPC分类号： H02J50/00 ,  H02J50/05 ,  H02J50/80 ,  H02J50/12 ,  H04B5/00

    摘要： Embodiments described herein are directed to wireless power transfer systems, which can include a vertical pair of an inner and an outer coupling capacitors. According to certain embodiments, one plate from each of the outer coupling capacitor at least in part overlaps one plate of the inner coupling capacitor on a primary side and another plate from the outer coupling capacitor at least partially overlaps another plate of the inner coupling capacitor on a secondary side. Each plate of the outer coupling capacitor has a larger area than each plate of the inner coupling capacitor. Further, a power transfer unit is included and configured to transfer power capacitively through the vertical pair of coupling capacitors, where the power transfer unit can include first and second inductors coupled to each plate of the outer coupling capacitor, respectively.

    WIRELESS CAPACITIVE POWER TRANSFER DESIGNS AND SYSTEMS
    2.
    发明申请
    WIRELESS CAPACITIVE POWER TRANSFER DESIGNS AND SYSTEMS 有权

    公开(公告)号：US20210066961A1

    公开(公告)日：2021-03-04

    申请号：US16079782

    申请日：2017-03-22

    申请人： Chunting Chris MI ,  Fei LU ,  Hua ZHANG ,  SAN DIEGO STATE UNIVERSITY RESEARCH FOUNDATION

    发明人： Chunting C. Mi ,  Fei Lu ,  Hua Zhang

    IPC分类号： H02J50/05 ,  H04B5/00 ,  H02J50/80

    摘要： Embodiments described herein are directed to wireless power transfer systems, which can include a vertical pair of an inner and an outer coupling capacitors. According to certain embodiments, one plate from each of the outer coupling capacitor at least in part overlaps one plate of the inner coupling capacitor on a primary side and another plate from the outer coupling capacitor at least partially overlaps another plate of the inner coupling capacitor on a secondary side. Each plate of the outer coupling capacitor has a larger area than each plate of the inner coupling capacitor. Further, a power transfer unit is included and configured to transfer power capacitively through the vertical pair of coupling capacitors, where the power transfer unit can include first and second inductors coupled to each plate of the outer coupling capacitor, respectively.

    Methods and circuitry for fault detection and automatic equalizers for battery packs
    3.
    发明授权
    Methods and circuitry for fault detection and automatic equalizers for battery packs 有权

    公开(公告)号：US11187758B2

    公开(公告)日：2021-11-30

    申请号：US16340135

    申请日：2017-10-19

    申请人： San Diego State University Research Foundation

    发明人： Chunting Mi ,  Fei Lu ,  Bing Xia ,  Yunlong Shang

    IPC分类号： G01R31/396 ,  G01R31/44 ,  G01R31/3835 ,  G01R31/371 ,  B60L58/22 ,  B60L3/00 ,  H02J7/00 ,  G01R31/36

    摘要： The present disclosure is directed to method of automatic circuit fault detection. The method includes inputting a common periodic wave voltage to each of a plurality of battery cells of a battery pack. Recursively calculated correlation coefficients for each neighboring pair of the battery cells are used to determine whether a common battery cell of two neighboring pairs is faulty. The disclosure further describes equalizers for multi-cell battery packs and series-connected battery strings. The equalizers can include a coupling capacitor comprising a plurality of small plates coupled between the two series-connected metal-oxide-semiconductor field-effect transistors (MOSFETs) connected to each battery cell, and a larger plate, wherein the larger plate is commonly coupled to all of the small plates. A plurality of battery string groups can be equalized, where each cell includes one transformer winding and a MOSFET. The MOSFETs are driven using one pair of complementary pulse width modulation signals.

    METHODS AND CIRCUITRY FOR FAULT DETECTION AND AUTOMATIC EQUALIZERS FOR BATTERY PACKS
    4.
    发明申请
    METHODS AND CIRCUITRY FOR FAULT DETECTION AND AUTOMATIC EQUALIZERS FOR BATTERY PACKS 审中-公开

    公开(公告)号：US20190310321A1

    公开(公告)日：2019-10-10

    申请号：US16340135

    申请日：2017-10-19

    申请人： San Diego State University Research Foundation

    发明人： Chunting Mi ,  Fei Lu ,  Bing Xia ,  Yunlong Shang

    IPC分类号： G01R31/396 ,  G01R31/371 ,  G01R31/3835 ,  H02J7/00 ,  B60L3/00 ,  B60L58/22

    摘要： The present disclosure is directed to method of automatic circuit fault detection. The method includes inputting a common periodic wave voltage to each of a plurality of battery cells of a battery pack. Recursively calculated correlation coefficients for each neighboring pair of the battery cells are used to determine whether a common battery cell of two neighboring pairs is faulty. The disclosure further describes equalizers for multi-cell battery packs and series-connected battery strings. The equalizers can include a coupling capacitor comprising a plurality of small plates coupled between the two series-connected metal-oxide-semiconductor field-effect transistors (MOSFETs) connected to each battery cell, and a larger plate, wherein the larger plate is commonly coupled to all of the small plates. A plurality of battery string groups can be equalized, where each cell includes one transformer winding and a MOSFET. The MOSFETs are driven using one pair of complementary pulse width modulation signals.

    Optical film for preventing optical coupling
    8.
    发明授权
    Optical film for preventing optical coupling 有权
    用于防止光耦合的光学膜

    公开(公告)号：US08964146B2

    公开(公告)日：2015-02-24

    申请号：US13264254

    申请日：2010-04-14

    申请人： Encai Hao ,  William Blake Kolb ,  John A. Wheatley ,  Fei Lu ,  Adam D. Haag

    发明人： Encai Hao ,  William Blake Kolb ,  John A. Wheatley ,  Fei Lu ,  Adam D. Haag

    IPC分类号： G02F1/1335 ,  F21V8/00

    CPC分类号： G02B6/0011 ,  G02B6/0088 ,  G02F1/133606

    摘要： Optical constructions are disclosed. A disclosed optical construction includes first and second optical layers having first and second major surfaces that face each other and are separated by an air gap. The first and second surfaces are susceptible to physically contacting each other at a location in the air gap. The optical construction further includes an optical film that is disposed at the location to prevent the first and second major surfaces from contacting each other at the location. The optical film has an effective index of refraction that is not greater than about 1.3.

    摘要翻译： 公开了光学结构。 所公开的光学结构包括第一和第二光学层，第一和第二光学层具有彼此面对并由气隙分开的第一和第二主表面。 第一和第二表面易于在气隙中的一个位置处彼此物理接触。 光学结构还包括光学膜，该光学膜设置在该位置处，以防止第一和第二主表面在该位置处彼此接触。 光学膜具有不大于约1.3的有效折射率。

    DC chopper and DC chopping method for doubly fed induction generator system
    9.
    发明授权
    DC chopper and DC chopping method for doubly fed induction generator system 有权
    双馈感应发电机系统的直流斩波器和直流斩波方法

    公开(公告)号：US08922173B2

    公开(公告)日：2014-12-30

    申请号：US13532356

    申请日：2012-06-25

    申请人： Chang-Yong Wang ,  Jian-Fei Zheng ,  Fei Lu ,  Jian-Ping Ying

    发明人： Chang-Yong Wang ,  Jian-Fei Zheng ,  Fei Lu ,  Jian-Ping Ying

    IPC分类号： H02P11/00 ,  H02H7/06 ,  H02P6/00

    CPC分类号： H02P6/00

    摘要： A DC chopper comprising a control unit and a power circuit and a DC chopping method for a DFIG (doubly fed induction generator) system are provided. The input terminal of the control unit is coupled to a DC capacitor of a converter to detect a DC voltage. The power circuit includes input terminals, an overvoltage protection module, a rectifier module and output terminals. The overvoltage protection module comprises at least one discharge unit formed from a discharge resistor and a switch element, and the rectifier module is coupled in parallel to the overvoltage protection module. When a grid voltage drops, the control unit outputs a corresponding control signal to drive the switch element to be ON or OFF, and the output terminal of the power circuit absorbs a portion of rotor inrush current, so as to impose over-current protection.

    摘要翻译： 提供了包括控制单元和电源电路以及用于DFIG（双馈感应发电机）系统的直流斩波方法的直流斩波器。 控制单元的输入端耦合到转换器的直流电容器，以检测直流电压。 电源电路包括输入端子，过压保护模块，整流模块和输出端子。 过电压保护模块包括由放电电阻器和开关元件形成的至少一个放电单元，并且整流器模块并联耦合到过电压保护模块。 当电网电压下降时，控制单元输出相应的控制信号以驱动开关元件导通或关断，并且电源电路的输出端吸收一部分转子浪涌电流，从而施加过电流保护。

    Method and system for synchronizing user data
    10.
    发明授权
    Method and system for synchronizing user data 有权
    用于同步用户数据的方法和系统

    公开(公告)号：US08805392B2

    公开(公告)日：2014-08-12

    申请号：US13522336

    申请日：2010-09-20

    申请人： Fei Lu ,  Shuang Liang ,  Chunhui Zhu ,  Jinguo Zhu

    发明人： Fei Lu ,  Shuang Liang ,  Chunhui Zhu ,  Jinguo Zhu

    IPC分类号： H04W72/00 ,  H04W48/20 ,  H04W8/20

    CPC分类号： H04W48/20 ,  H04W8/20 ,  H04W76/22

    摘要： A method for synchronizing user data is provided, which includes: when a User Equipment (UE) moves into a coverage area of a new mobility management unit, an old mobility management unit sends an indication of whether a bearer modification procedure is to be triggered to the new mobility management unit, and the new mobility management unit determines whether to trigger the bearer modification procedure according to the indication. A system for synchronizing user data is further provided. By means of the technical solution of the method and the system, the situation that a Quality of Service (QoS) used by a bearer in the new mobility management unit does not match with a bearer QoS of an updated subscription data when a user equipment moves into a coverage area of a new mobility management unit can be avoided.

    摘要翻译： 提供了一种同步用户数据的方法，包括：当用户设备（UE）移动到新的移动性管理单元的覆盖区域时，旧的移动性管理单元发送是否要触发承载修改过程的指示 新的移动性管理单元和新的移动性管理单元根据指示确定是否触发承载修改过程。 还提供用于同步用户数据的系统。 通过该方法和系统的技术方案，当用户设备移动时，新移动性管理单元中的承载使用的服务质量（QoS）与更新的订阅数据的承载QoS不匹配的情况 可以避免进入新的移动管理单元的覆盖区域。