Display panel and display device
    1.
    发明授权

    公开(公告)号:US11386864B2

    公开(公告)日:2022-07-12

    申请号:US17262137

    申请日:2020-04-13

    IPC分类号: G09G3/36

    摘要: A display panel includes a plurality of source driving chips, a power management circuit, and a plurality of switching units. The power management circuit includes a first output terminal, and the first output terminal is configured to provide a digital power signal to the source driving chips; and the plurality of switching units are respectively arranged corresponding to at least one of the source driving chips, the switching units are connected to the first output terminal and the corresponding source driving chips, and at least part of the switching units are configured to turn on the corresponding source driving chips and the first output terminal in different time periods in response to different control signals.

    Booster circuit, shutdown circuit, methods for driving the same, and display apparatus

    公开(公告)号:US11164537B2

    公开(公告)日:2021-11-02

    申请号:US16768868

    申请日:2019-12-19

    IPC分类号: G09G3/36

    摘要: The embodiments of the present disclosure propose a booster circuit and a method for driving the same, a shutdown circuit and a method for driving the same, and a display apparatus. The booster circuit includes a first input sub-circuit coupled to a first input signal terminal, a first voltage signal terminal, and an output signal terminal, and configured to transmit a first voltage signal at the first voltage signal terminal to the output signal terminal under control of a first input signal at the first input signal terminal; a second input sub-circuit coupled to a second input signal terminal, the first voltage signal terminal and a first node, and configured to transmit the first voltage signal at the first voltage signal terminal to the first node under control of a second input signal at the second input signal terminal; and a first storage sub-circuit coupled to the output signal terminal and the first node, and configured to cause a level of an output signal at the output signal terminal to be raised to a level higher than the first voltage signal.

    Method and device for driving display panel and display device

    公开(公告)号:US11127344B2

    公开(公告)日:2021-09-21

    申请号:US16901253

    申请日:2020-06-15

    IPC分类号: G09G3/32

    摘要: A method for driving a display panel, a device for driving a display panel and a display device are provided. The method for driving a display panel includes: acquiring a GOA signal corresponding to a current frame of image, where the GOA signal includes a plurality of clock signals; determining a transmission channel corresponding to each of the plurality of clock signals, and generating a correspondence relationship between the clock signals and respective transmission channels, where the transmission channels are used to deliver the clock signals from a GOA control signal generator to a GOA circuit of the display panel, the current frame of image is different from at least one frame of image previous to the current frame of image with respect to the correspondence relationship between the clock signals and respective transmission channels; and transmitting the clock signals by using the determined transmission channels.

    BOOSTER CIRCUIT, SHUTDOWN CIRCUIT, METHODS FOR DRIVING THE SAME, AND DISPLAY APPARATUS

    公开(公告)号:US20210210044A1

    公开(公告)日:2021-07-08

    申请号:US16768868

    申请日:2019-12-19

    IPC分类号: G09G3/36

    摘要: The embodiments of the present disclosure propose a booster circuit and a method for driving the same, a shutdown circuit and a method for driving the same, and a display apparatus. The booster circuit includes a first input sub-circuit coupled to a first input signal terminal, a first voltage signal terminal, and an output signal terminal, and configured to transmit a first voltage signal at the first voltage signal terminal to the output signal terminal under control of a first input signal at the first input signal terminal; a second input sub-circuit coupled to a second input signal terminal, the first voltage signal terminal and a first node, and configured to transmit the first voltage signal at the first voltage signal terminal to the first node under control of a second input signal at the second input signal terminal; and a first storage sub-circuit coupled to the output signal terminal and the first node, and configured to cause a level of an output signal at the output signal terminal to be raised to a level higher than the first voltage signal.

    Islanding detection method and system
    8.
    发明授权
    Islanding detection method and system 有权
    岛屿检测方法和系统

    公开(公告)号:US09170306B2

    公开(公告)日:2015-10-27

    申请号:US13876914

    申请日:2012-11-06

    IPC分类号: G01R31/40 H02J3/38

    摘要: The present invention provides an islanding detection method and an islanding detection system. The method includes: acquiring a voltage signal at a grid-connected node of a power generation system, and extracting phase information of the voltage signal; constructing a slip-mode frequency shift islanding detection curve in the form of a quadratic function according to the phase information; and generating a disturbance signal according to the slip-mode frequency shift islanding detection curve, and sending the disturbance signal to an inverter of the power generation system. The method and system can avoid a non-detection zone, and can perform an inverter islanding detection in a fast and accurate manner under simple control.

    摘要翻译: 本发明提供一种孤岛检测方法和孤岛检测系统。 该方法包括:获取发电系统的并网节点处的电压信号,并提取电压信号的相位信息; 根据相位信息构造二次函数形式的滑模式频移孤岛检测曲线; 并根据滑移模式频移孤岛检测曲线产生干扰信号,并将干扰信号发送到发电系统的逆变器。 该方法和系统可以避免非检测区域,并且可以在简单的控制下以快速,准确的方式执行逆变器孤岛检测。

    PV JUNCTION UNIT, PV JUNCTION BOX AND METHOD FOR MONITORING CURRENT IN PV STRING
    10.
    发明申请
    PV JUNCTION UNIT, PV JUNCTION BOX AND METHOD FOR MONITORING CURRENT IN PV STRING 有权
    PV结功能单元,PV JUNCTION BOX和PV PV监测电流的方法

    公开(公告)号:US20150357968A1

    公开(公告)日:2015-12-10

    申请号:US14473329

    申请日:2014-08-29

    摘要: A PV junction unit for joining a plurality of PV strings into a single string, comprising: a plurality of anode branch circuits; an anode busbar adapted to connect with an anode output end of each PV string via one corresponding anode branch circuit; a plurality of cathode branch circuits; a cathode busbar adapted to connect with a cathode output end of each PV string via one corresponding cathode branch circuit; resistors each of which is connected in series in one corresponding anode branch circuit connecting the anode output end of one corresponding PV string with the anode busbar, wherein each resistor has a theoretical resistance; voltage measuring devices each of which is connected in parallel with one corresponding resistor; and a processor connected with each of the voltage measuring devices, the processor configured to determine a current value in one PV string at least based on the theoretical resistance of the resistor in one anode branch circuit connected with the one PV string and based on a voltage value from the voltage measuring device in said one anode branch circuit connected with the one PV string.

    摘要翻译: 一种PV接合单元,用于将多个PV串连接成单个串,包括:多个阳极分支电路; 阳极母线,其适于经由一个对应的阳极分支电路与每个PV串的阳极输出端连接; 多个阴极分支电路; 阴极汇流排,其适于经由一个对应的阴极支路与每个PV串的阴极输出端连接; 每个电阻器串联连接在一个对应的阳极分支电路中,该电路将一个对应的PV串的阳极输出端与阳极母线连接,其中每个电阻具有理论电阻; 每个电压测量装置与一个对应的电阻器并联连接; 以及与每个所述电压测量装置连接的处理器,所述处理器被配置为至少基于在与所述一个PV串连接的一个阳极支路中的所述电阻器的理论电阻和基于电压的电压来确定一个PV串中的电流值 所述一个阳极分支电路中的电压测量装置的值与一个PV串连接。