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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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Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
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IF there is the word "Problem" in your question ...
certainly the answer is " RTFM " or " RTFDataSheet " !!!
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Re: How to detect Line Voltage
Thanks Alain. That was my first thought, to use a capacitor, but want to avoid it as it is large and costly.
This is going for a production device, so all matter.
Maybe I will find a low current opto and just use large enough resistors.
Will see.
Ioannis
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