Hi Kasper, Your picture shows what looks like a battery, but I do not see that included on the schematic ?
This seems overly complicated seeing as how there are opto-couplers designed for this purpose. They even have Schmitt trigger functions incorporated. All in a 8 pin dip style package designed to provide separation and protection. Bill....WB6BNQ Kasper Pedersen wrote: > On 06/25/2011 09:34 PM, Tom Van Baak wrote: > > We are more a group of experimenters than lamenters, so > > here's an open invitation to all of you in the US to join me > > on a 60 Hz measurement party, starting as soon as you > > can and lasting as many weeks or months that it takes to > > get interesting plots. > > > > Here is what I have used with far better success than transformers. For > some reason the transformers I get hold of have quite large phase error > (ie. they are cheap and get warm). > > http://wap.taur.dk/zcd/sch.jpg > http://wap.taur.dk/zcd/plug.jpg > > Cp has the dual role of killing RF, and compensating for the H->L > threshold of the HC14. It sits on the hot side, and charges up through > the protection diodes for the next 200us pulse. > It will drive 10m of POF. > Substitute an opto coupler of choice if you need less isolation. > > /Kasper Pedersen > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
