Phase control motor controller

I want to control the speed of three 230V/50Hz Motors. Each motor has about 120W. I’ve found out that this could be done with a triac and a PWM signal.
What I can not find is a more or less complete curcuit board (or it’s schematic) to start with.
I have a FEZ Cobra board, so I could use one PWM per motor.
I’m good in software and can solder circuit boards, but designing new hardware is a bit above my horizon.
Any help, hint, link, … would help me a lot.

Welcome to the forum!

Have you seen this:

It goes without saying that extreme caution is warranted in a project like this, especially with a non-isolated device like a TRIAC. Please do not injure (or kill!) yourself.