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    PWM power supplies using controlled feedback timing and methods of operating same
    1.
    发明授权
    PWM power supplies using controlled feedback timing and methods of operating same 有权
    PWM电源使用受控的反馈时序和操作方法

    公开(公告)号：US07247955B2

    公开(公告)日：2007-07-24

    申请号：US10236876

    申请日：2002-09-06

    申请人： John G. Tracy ,  Frederick Tassitino, Jr. ,  Hans Pfitzer ,  Rennie Bobb ,  Julius Rice

    发明人： John G. Tracy ,  Frederick Tassitino, Jr. ,  Hans Pfitzer ,  Rennie Bobb ,  Julius Rice

    IPC分类号： H01H3/26

    CPC分类号： H02J9/062 ,  Y10T307/615 ,  Y10T307/944

    摘要： A closed loop power converter circuit of a UPS or other power supply includes a pulse width modulator circuit in a forward path of the closed loop power circuit. A compensation circuit provides pulse width commands to the pulse width modulator at a first rate. A feedback circuit digitally filters samples of an output of the closed loop power converter at a second rate greater the first rate and that provides the filtered samples to the compensation circuit. In some embodiments, the compensation circuit may be operative to compensate for the phase lag associated with a low pass output filter.

    摘要翻译： UPS或其他电源的闭环功率转换器电路包括在闭环功率电路的正向通路中的脉宽调制器电路。 补偿电路以第一速率向脉冲宽度调制器提供脉冲宽度命令。 反馈电路以大于第一速率的第二速率数字地滤波闭环功率转换器的输出的样本，并将经滤波的采样提供给补偿电路。 在一些实施例中，补偿电路可以用于补偿与低通输出滤波器相关联的相位滞后。