Wow, trying different search strings in google gave me exactly what I wante=
d:
http://www.edn-europe.com/improvedoptocouplercircuitsreducecurrentdrawresis=
tledaging+article+2021+Europe.html

circuit: http://www.edn-europe.com/cmsimages/0208/46f2.jpg
It's basically same idea that I had imagined, but never got to try.


On Fri, May 13, 2011 at 00:41, IVP <joecolquitt@clear.net.nz> wrote:
>> By the way, can anybody direct me to a good optically isolated
>> zero-crossing detector circuit?
>
> http://home.clear.net.nz/pages/joecolquitt/txless.html
>
> Joe
> --
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