PIC to AC 220 V switch

[mister_e]

Triac and optocoupler do the job.

[boban]

Thanks do you have some suggestion schematics?

[mister_e]

we don't know your current requirement and current schematic, but let's say you interface a PIC to a Triac, i would suggest you to use an optocoupler in between. Something like MOC3011, MOC3022, or whatever else with triac output. OPen it's datasheet and you'll find some basic schematic in.

[T.Jackson]

Don't forget the snubber circuit.

[mister_e]

Yes if you drive inductive and you don't use Snuberless Triac

[billpoul]

go to www.mouser.com

Take a look at this part no. G3NE-210T-US-DC5

There are a whole series of optically isolated solid state relays that can do the job directly from the output of a pic.

This one takes about 20ma of drive at 5v and can safely switch 220VAC at 5 amps. It cost about $12

[boban]

12$ it is quite expensive in comparison with relay, which cost 1 - 2 $.