PHASE PROFILE GENERATOR
    2.
    发明申请
    PHASE PROFILE GENERATOR 有权
    相型轮发电机

    公开(公告)号:US20120242383A1

    公开(公告)日:2012-09-27

    申请号:US13069653

    申请日:2011-03-23

    IPC分类号: H03L7/06

    CPC分类号: H03L7/06 H03L2207/06

    摘要: Phase profile generator systems and methods are disclosed. A system includes a signal generator, a target phase trajectory module, an error detector and a control loop filter. The signal generator is configured to generate an output signal. In addition, the target phase trajectory module is configured to track a target phase trajectory and determine a next adjustment of the output signal to conform the output signal to a portion of the target phase trajectory. Further, the error detector is configured to determine an error between the output signal and a current target phase trajectory value that precedes the portion of the target phase trajectory, where the determination of the error is independent of the next adjustment of the output signal. Moreover, the control loop filter is configured to control the signal generator in accordance with both the next adjustment and the error to generate a phase profile.

    摘要翻译: 公开了相位轮廓发生器系统和方法。 系统包括信号发生器,目标相位轨迹模块,误差检测器和控制环路滤波器。 信号发生器被配置为产生输出信号。 另外,目标相位轨迹模块被配置为跟踪目标相位轨迹,并且确定输出信号的下一个调整以使输出信号符合目标相位轨迹的一部分。 此外,误差检测器被配置为确定输出信号和在目标相位轨迹的部分之前的当前目标相位轨迹值之间的误差,其中误差的确定与输出信号的下一个调整无关。 此外,控制环路滤波器被配置为根据下一个调整和误差来控制信号发生器以产生相位分布。

    AUTOMATIC STATIC PHASE ERROR AND JITTER COMPENSATION IN PLL CIRCUITS
    3.
    发明申请
    AUTOMATIC STATIC PHASE ERROR AND JITTER COMPENSATION IN PLL CIRCUITS 有权
    PLL电路中的自动静态相位误差和抖动补偿

    公开(公告)号:US20080191746A1

    公开(公告)日:2008-08-14

    申请号:US11672737

    申请日:2007-02-08

    IPC分类号: H03L7/087 H03L7/085 H03D13/00

    摘要: An instantaneous phase error detector (IPED) and method includes a first gate configured to logically OR output phase error signals as data to a first latch, and a second gate configured to logically combine the output phase error signals to clock the first latch. A delay element delays to the data to the first latch where the output of the first latch provides instantaneous phase error change information. A second latch is coupled to the output phase error signals to output a lead/lag signal to indicate which of the output phase error signals is leading. A phase-locked loop employing the output of the IPED is also disclosed along with static phase measurement and jitter optimization features.

    摘要翻译: 瞬时相位误差检测器(IPED)和方法包括:第一门,被配置为逻辑或输出相位误差信号作为数据到第一锁存器;以及第二门,被配置为逻辑地组合输出相位误差信号以对第一锁存器进行时钟。 延迟元件延迟到第一锁存器的数据,其中第一锁存器的输出提供瞬时相位误差变化信息。 第二锁存器耦合到输出相位误差信号以输出引导/延迟信号以指示输出相位误差信号中的哪一个正在引导。 采用IPED的输出的锁相环还与静态相位测量和抖动优化特征一起公开。