[time-nuts] Zero-Crossing Detector Design?

Chris Albertson albertson.chris at gmail.com
Fri Jul 20 05:42:52 UTC 2012


On Thu, Jul 19, 2012 at 5:47 PM, Rick Karlquist <richard at karlquist.com> wrote:

>
> Hysteresis does nothing to eliminate jitter or temperature

Maybe, but it is absolutely needed if there is any noise on the
signal.   A perfect comparator with zero hysteresis would dither on
every zero crossing.

Chris Albertson
Redondo Beach, California



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