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AC voltage dector circuit for home automation

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thunaivendan

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Hi guys...i need a AC 230 v detector circuit..when switch is on which taken i / p to controller..using opto coupler..and detail of the circuit
 

Use High Value resistor make divider & Apply divider output to Opto input. Before this add half or full wave rectifier with capacitor for smoothing DC level. at output we get isolated output
 

Golden Electronics said:
Use High Value resistor make divider & Apply divider output to Opto input. Before this add half or full wave rectifier with capacitor for smoothing DC level. at output we get isolated output
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20k to 200k for the i/p resistor and capacitor range 470uf/63v,diode of 1W these range enough for that circuit guys..and this gives circuit gives continues 5v dc pulse..

- - - Updated - - -

amayilsamy said:
Try this link.

https://www.edaboard.com/threads/170213/

I hope its helps you.
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tamind circuit what is the range of capacitor 470/63v is enough
 

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