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公开(公告)号：US08994426B2
公开(公告)日：2015-03-31
申请号：US13600933
申请日：2012-08-31
CPC分类号： H03K3/017 , H03K7/08 , H03L7/08 , H03L7/0805 , H03L7/0814 , H03L7/0816
摘要： In various embodiments, systems and methods for generating high-precision pulse-width modulation include a delay-locked loop comprising multiple delay units having time-variable delays, control logic for selecting a subset S of the multiple delay units to thereby generate a time-invariant shift amount having a precision finer than that of a system clock and circuitry for applying the shift amount to rising and falling edges of a pulse-width modulation waveform to thereby generate a high-precision pulse-width modulation waveform.
摘要翻译： 在各种实施例中，用于产生高精度脉冲宽度调制的系统和方法包括包括具有时变延迟的多个延迟单元的延迟锁定环路，用于选择多个延迟单元的子集S的控制逻辑，从而产生时间 - 具有比用于将脉冲宽度调制波形的上升沿和下降沿施加移位量的系统时钟精度更高的精度的不变偏移量，从而生成高精度脉冲宽度调制波形。
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公开(公告)号：US20140062551A1
公开(公告)日：2014-03-06
申请号：US13600933
申请日：2012-08-31
CPC分类号： H03K3/017 , H03K7/08 , H03L7/08 , H03L7/0805 , H03L7/0814 , H03L7/0816
摘要： In various embodiments, systems and methods for generating high-precision pulse-width modulation include a delay-locked loop comprising multiple delay units having time-variable delays, control logic for selecting a subset S of the multiple delay units to thereby generate a time-invariant shift amount having a precision finer than that of a system clock and circuitry for applying the shift amount to rising and falling edges of a pulse-width modulation waveform to thereby generate a high-precision pulse-width modulation waveform.
摘要翻译： 在各种实施例中，用于产生高精度脉冲宽度调制的系统和方法包括包括具有时变延迟的多个延迟单元的延迟锁定环路，用于选择多个延迟单元的子集S的控制逻辑，从而产生时间 - 具有比用于将脉冲宽度调制波形的上升沿和下降沿施加移位量的系统时钟精度更高的精度的不变偏移量，从而生成高精度脉冲宽度调制波形。
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