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  1. sellig

    Zero voltage crossing

    To Lewish: I'm looking for a pulse synchronised with the zero voltage crossing: this pulse should be delayed not more than 50us after zero crossing! The main problem here is to avoid all the interferences which occur in a standard grid!
  2. sellig

    Zero voltage crossing

    I'm looking for a schematic for a zero voltage crossing detector. Application: thyristor triggering Input voltage: 50-700Vrms Frequency: 45-65Hz Accuracy: better than 50us over the full voltage and frequency range.

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