[time-nuts] Zero-Crossing Detector Design?
Charles P. Steinmetz
charles_steinmetz at lavabit.com
Fri Jul 20 00:39:17 UTC 2012
Michael wrote:
>One circuit I was recommended when I was looking for ideas uses a 1M
>resistor to feed the output of the inverter back to the input to self-bias
That works OK, but you have to be careful. Without an input signal,
there can be excessive quiescent current through the inverter (Vcc to
ground) -- for which it was not designed.
Best regards,
Charles
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