-----Original Message-----
From: William Chops Westfield <billw@CISCO.COM>
To: PICLIST@MITVMA.MIT.EDU <PICLIST@MITVMA.MIT.EDU>
Date: Saturday, May 22, 1999 4:13 AM
Subject: Re: [OT] TRIACS, Dimmers, and PICS


>    you could've just set all triacs up for zero crossing firing to get
round
>    the transient headaches.
>
>You can't do dimming with zero-crossing firing :-(
>
>BillW

What if you counted the zero crossings and held your triac on for a given
number of crossings and off for a given number of crossings?  Would this
give you a ratio of power on to power off?  Would it be kind of a PWM? Would
a scheme like this work?
Richard