Circuit for precise measurement of the average value of the outputs of multiple circuit unit elements
    2.
    发明授权
    Circuit for precise measurement of the average value of the outputs of multiple circuit unit elements 有权
    用于精确测量多个电路单元的输出的平均值的电路

    公开(公告)号:US06804697B2

    公开(公告)日:2004-10-12

    申请号:US09905368

    申请日:2001-07-13

    IPC分类号: G06G712

    CPC分类号: G06G7/14

    摘要: An averaging circuit includes: input signal nodes for providing input signals 330; a multiplexing circuit 320 coupled to the input signal nodes for switching between the input signals 330 to create a time waveform; a low pass filter 300 coupled to an output 340 of the multiplexing circuit 320 for filtering the time waveform to create an average signal; and an average replication circuit 310 coupled to an output 350 of the low pass filter 300.

    摘要翻译: 平均电路包括:输入信号节点,用于提供输入信号330; 耦合到输入信号节点的多路复用电路320,用于在输入信号330之间切换以产生时间波形; 耦合到多路复用电路320的输出340的低通滤波器300,用于对时间波形进行滤波以产生平均信号; 以及耦合到低通滤波器300的输出端350的平均复制电路310。

    Methods and apparatus to lock a phase lock loop to a motor
    4.
    发明授权
    Methods and apparatus to lock a phase lock loop to a motor 有权
    将锁相环锁定到电机的方法和装置

    公开(公告)号:US07960936B2

    公开(公告)日:2011-06-14

    申请号:US11697520

    申请日:2007-04-06

    IPC分类号: G05B11/36

    CPC分类号: G11B19/28

    摘要: Methods and apparatus to lock a phase lock loop to a spindle motor are disclosed. An example controller comprises a counter to determine a period of an operating signal received from a motor, an oscillator to generate a control signal based on an input signal, and an initializer to generate the input value based on the period, wherein the input value causes the oscillator to generate the control signal having the same phase as the operating signal.

    摘要翻译: 公开了将锁相环锁定到主轴电机的方法和装置。 示例性控制器包括:计数器,用于确定从电动机接收的操作信号的周期;基于输入信号产生控制信号的振荡器;以及初始化器,用于基于所述周期生成所述输入值,其中所述输入值导致 该振荡器产生具有与操作信号相同相位的控制信号。