I'd go for triac's with opto couplers.

Either separate Triac and optocoupler (more components
but might be a little cheaper), or any of the combined
"opto-traics" from e.g. Sharp. Digikey has a wide
range of the Sharp modules. There are both modules
with zero-crossing builtin (if you need just on/off)
or without (if you need phase control).

I actualy has a "remote controled lamp dimmer" design
half-ready. Uses a remote device (18f1220 based) that
controles (phase) up to 8 slave units (12F629 based)
using an IR link (TSOP-device in the slaves).

Jan-Erik.





-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Yofumo Mimoto
Sent: den 27 november 2003 12:19
To: PICLIST@MITVMA.MIT.EDU
Subject: [PIC: ] Manipuling 220V light bulbs with PIC


I don't know what is the best choice to manage 220V light bulbs. What i
want to do is to manage 3 lights and play around with this lights..
getting them on and off like a disco pub. Well, really i want to emulate
a traffic light. Then my question is what would be the best and cheap
way to manage the lights, with a (RELI) or opto couplers.. or what ?

Sorry for my english !

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