Mains voltage zero crossing detector with optical isolated output- Drive_R_S_Flop.pdf
Jim Thompson a écrit :
Attached is what I had in mind using opto-couplers to set and reset a
simple flip-flop.
The advantage is that the 100K load on the opto-coupler is slow in the
_rising_ direction, but falls fast, thus doesn't impair performance.
...Jim Thompson
What about that 100us delay at the falling edge ;-)
--
Thanks,
Fred.
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