HYBRID CONTROL CIRCUIT AND METHOD
    1.
    发明申请
    HYBRID CONTROL CIRCUIT AND METHOD 有权
    混合控制电路和方法

    公开(公告)号:US20100238060A1

    公开(公告)日:2010-09-23

    申请号:US12721853

    申请日:2010-03-11

    IPC分类号: H03M1/12

    摘要: A hybrid control circuit and method combine analog circuit and digital circuit to generate digital PWM signals for a multiphase DC-DC converter to generate an output voltage. For current balance control, analog current error signals are generated by the analog circuit from analog phase current signals of the multiphase DC-DC converter and then converted into digital current error signals for calculating the duties of each phase of the multiphase DC-DC converter. Therefore, fewer bit devices can be used to achieve precise current balance control and the size and cost of the circuit can be reduced.

    摘要翻译: 混合控制电路和方法组合模拟电路和数字电路以产生用于多相DC-DC转换器的数字PWM信号以产生输出电压。 对于电流平衡控制,模拟电流误差信号由多相DC-DC转换器的模拟相电流信号由模拟电路产生,然后转换为数字电流误差信号,用于计算多相DC-DC转换器各相的占空比。 因此,可以使用较少的位器件来实现精确的电流平衡控制,并且可以减小电路的尺寸和成本。

    INITIAL ROTOR POSITION DETECTION FOR PERMANENT MAGNET SYNCHRONOUS MOTORS
    2.
    发明申请
    INITIAL ROTOR POSITION DETECTION FOR PERMANENT MAGNET SYNCHRONOUS MOTORS 有权
    永磁同步电机的初始转子位置检测

    公开(公告)号:US20100181952A1

    公开(公告)日:2010-07-22

    申请号:US12689411

    申请日:2010-01-19

    申请人: KUANG-YAO CHENG

    发明人: KUANG-YAO CHENG

    IPC分类号: H02P6/20 H02P6/18

    CPC分类号: H02P6/20 H02P6/18

    摘要: An apparatus and method for use with a PMSM detect the fall time or the rise time and the fall time of a motor current in the PMSM under different voltage vectors when the PMSM is in start-up to determine an initial rotor position for the PMSM at standstill.

    摘要翻译: 与PMSM一起使用的装置和方法在PMSM启动时检测在不同电压矢量下的PMSM中的电动机电流的下降时间或上升时间和下降时间,以确定PMSM的初始转子位置 停顿。