Multi-channel digital pulse width modulator (DPWM)
    1.
    发明授权
    Multi-channel digital pulse width modulator (DPWM) 有权
    多通道数字脉宽调制器(DPWM)

    公开(公告)号:US07915938B2

    公开(公告)日:2011-03-29

    申请号:US12608186

    申请日:2009-10-29

    摘要: A multiple channel Digital Pulse Width Modulator (DPWM) can include a single delay locked loop with a delay line, the delay line producing a number of outputs. Circuitry can use a delay line mask to mask a portion of the delay line outputs to produce a modified outputs so as to prevent premature pulse width reset. Jitter tolerance look ahead circuits can prevent jitter from causing premature reset of pulse width modulated signals. The pulse width modulators can include multiple alternately used multiplexers so that the operation of the pulse width modulators is not affected by the load time of the multiplexers.

    摘要翻译: 多通道数字脉宽调制器(DPWM)可以包括具有延迟线的单个延迟锁定环,延迟线产生多个输出。 电路可以使用延迟线掩模来屏蔽延迟线输出的一部分以产生修改的输出,以防止过早的脉冲宽度复位。 抖动容限预测电路可以防止抖动引起脉宽调制信号的过早复位。 脉冲宽度调制器可以包括多个交替使用的多路复用器,使得脉冲宽度调制器的操作不受复用器的加载时间的影响。