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    Universal single-stage power converter
    3.
    发明授权
    Universal single-stage power converter 有权
    通用单级电源转换器

    公开(公告)号：US08823338B2

    公开(公告)日：2014-09-02

    申请号：US13362195

    申请日：2012-01-31

    Applicant: Stephen R. Taddeo

    Inventor： Stephen R. Taddeo

    IPC: G05F3/16

    CPC classification number: H02M1/10 ,  H02M3/1582 ,  H02M5/275 ,  H02M7/53

    Abstract: A universal electrical power converter having the combined capabilities of symmetrical and asymmetrical converters, bidirectionality, and simplicity is provided with methods for controlling it in single-stage conversion. In some cases, the converter charges an inductor connected in parallel between a regulated port and an unregulated port using energy stored by a capacitor positioned in parallel between the inductor and one of the ports until the inductor has a level of current stored that corresponds to the change in voltage desired at the regulated port, then discharges stored energy into the other port until a current cutoff threshold level is reached in the inductor. In some embodiments a single stage power converter is provided having three or more ports that can be connected and disconnected from the same inductor. Converters disclosed herein can convert AC signals when there is cross switching on at least one side or branch of the converter.

    Abstract translation: 具有对称和非对称转换器，双向性和简单性的组合能力的通用电力转换器具有用于在单级转换中进行控制的方法。 在一些情况下，转换器对在调节端口和未调节端口之间并联连接的电感器进行充电，该电感器由位于电感器和其中一个端口之间并联的电容器存储的能量存储，直到电感器具有对应于 调节端口所需的电压变化，然后将存储的能量放电到另一个端口，直到在电感器中达到电流截止阈值电平。 在一些实施例中，提供具有三个或更多个端口的单级功率转换器，其可以与相同的电感器连接和断开。 当在转换器的至少一个侧面或分支上存在交叉开关时，本文公开的转换器可以转换AC信号。

    Power transfer devices, methods, and systems with crowbar switch shunting energy-transfer reactance
    7.
    发明授权
    Power transfer devices, methods, and systems with crowbar switch shunting energy-transfer reactance 有权
    功率传输装置，方法和系统，具有撬棍切换分流能量传递电抗

    公开(公告)号：US08432711B1

    公开(公告)日：2013-04-30

    申请号：US13541905

    申请日：2012-07-05

    Applicant: William C. Alexander

    Inventor： William C. Alexander

    IPC: H02H7/10 ,  H02M3/335 ,  H02M5/257

    CPC classification number: H02M5/458 ,  H02M5/225 ,  H02M5/275 ,  H02M7/4807 ,  H02M7/797 ,  H02M2007/4815 ,  Y02B70/1441

    Abstract: The present application discloses methods, circuits and systems for power conversion, using a universal multiport architecture. When a transient appears on the power input (which can be, for example, polyphase AC), the input and output switches are opened, and a crowbar switch shunts the inductance which is used for energy transfer. This prevents this inductance from creating an overvoltage when it is disconnected from outside lines.

    Abstract translation: 本申请公开了使用通用多端口架构的用于功率转换的方法，电路和系统。 当电源输入（可以是例如多相交流）出现瞬态时，输入和输出开关被打开，而短路开关分流用于能量传输的电感。 这样可以防止这种电感在与外部线路断开时产生过电压。

    PULSE WIDTH MODULATION CONTROL OF A MATRIX CONVERTER
    8.
    发明申请
    PULSE WIDTH MODULATION CONTROL OF A MATRIX CONVERTER 失效
    矩阵转换器的脉宽调制控制

    公开(公告)号：US20110043273A1

    公开(公告)日：2011-02-24

    申请号：US12600147

    申请日：2007-05-16

    Applicant: Vladimir Blasko

    Inventor： Vladimir Blasko

    IPC: H03K17/60

    CPC classification number: H02M5/297 ,  H02M5/271 ,  H02M5/275

    Abstract: A matrix converter includes a plurality of switching elements and is adapted to receive a multi-phase alternating current (AC) input signal having an input frequency and to generate a multi-phase AC output signal having an output frequency. The phases of the input signal are sorted as a function of their instantaneous voltage amplitude (60). A reference signal is generated from output reference voltages that correspond to each phase of the output signal (56). Duty cycles are calculated for each phase of the output signal based on the sorted input signal phases and the reference signal (62). Switching functions, which each control one of the switching elements, are then generated based on the duty cycles for each phase of the output signal (64, 66).

    Abstract translation: 矩阵转换器包括多个开关元件，并且适于接收具有输入频率的多相交流（AC）输入信号并产生具有输出频率的多相AC输出信号。 输入信号的相位根据其瞬时电压幅度（60）进行排序。 从与输出信号（56）的各相对应的输出参考电压产生参考信号。 基于排序的输入信号相位和参考信号（62），对输出信号的每个相位计算占空比。 然后基于输出信号（64,66）的每个相位的占空比来产生每个控制开关元件之一的开关功能。

    Bridge cascade system
    9.
    发明授权
    Bridge cascade system 有权

    公开(公告)号：US11863067B2

    公开(公告)日：2024-01-02

    申请号：US17528273

    申请日：2021-11-17

    Applicant: Sungrow Power Supply Co., Ltd.

    Inventor： Guoqing Cai ,  Jiacai Zhuang ,  Xinyu Wang ,  Jun Xu

    IPC: H02M5/275 ,  H02M5/293 ,  H02M3/155 ,  H02M1/08

    CPC classification number: H02M3/155 ,  H02M1/08 ,  H02M5/275 ,  H02M5/293

    Abstract: Provided is a bridge cascade system, which includes at least one phase unit and a driving unit for the phase unit. The phase unit includes N bridge topologies cascaded on alternating current AC sides. The driving unit includes one driving power supply circuit, multiple bootstrap power supply circuits and 2N driving circuits. In the phase unit, the driving circuits are powered by the driving power supply circuit directly or through corresponding bootstrap power supply circuits. The driving circuits are configured to provide driving signals for corresponding switch transistors in the phase unit. In this way, one driving power supply is matched with multiple bootstrap power supply circuits, realizing power supply to the driving circuits corresponding to the switch transistors of all bridge topologies, which reduces the difficulty in designing the driving power supply for the bridge cascade system and reduces cost for the system.

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