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Best design to measure mains voltage

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malik_zohaib

malik_zohaib

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Hi guys i design a circuit that measures the mains voltage with good accuracy. But the only problem in my design is; i have to use bigger capacitor (330uf 650v )as i am measuring voltage across it and i don't want to use transformer.

I also tried to use voltage divider at input site, but then o/p voltage takes a lot of time to stable.

Can anyone give me some idea about this????

Untitled.jpg
 

maybe **broken link removed** can help you. look at section 6, digital panel meter

by the way, use multisim to simulate analog circuit instead of proteus
good luck
 
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