How to detect Line Voltage

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  1. - 17th January 2012, 12:25 #4
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    Acetronics2
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    Default Re: How to detect Line Voltage

    Hi, Ioannis

    as far as you do not measure mains, you can use a capacitor in series to reduce resistor dissipation ( resistor is just here to limit the current peak @ power on )

    http://www.esr.co.uk/manuals/mk181.pdf

    you also can try a neon bulb and a LDR or photodiode ... placed into a black shrinkable " tube"

    Alain
    Last edited by Acetronics2; - 17th January 2012 at 12:30.
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