AC voltage dector circuit for home automation

[thunaivendan]

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

 

[Golden Electronics]

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

 

[amayilsamy]

Try this link.

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

I hope its helps you.

 

[thunaivendan]

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

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 - - -

Try this link.

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

I hope its helps you.

tamind circuit what is the range of capacitor 470/63v is enough