Zero-crossing detector?

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  1. - 10th August 2009, 02:32 #5
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    amgen
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    Default opto

    I like to use isolation, cheap and reliable with ac opto coupler. AC opto gives + and - cycle detection with 1, 4-pin device and 2 resisters. can get pos or neg pulse at zero Xing.

    don
    amgen
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    Last edited by amgen; - 10th August 2009 at 02:40.
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