The suggestion was to use a zero crossing opto; why do you need a PIC?

> -----Original Message-----
> From: electme [mailto:electme@IHUG.COM.AU]
> Sent: Thursday, December 13, 2001 9:52 AM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [EE]: controlling power supplies
>
>
> how about a pic to sense zero crossing that switches a snubberless
> triac.They have higher di/dt for surge current & no moving
> parts , better
> reliability
> glen
>
> At 03:11 pm Monday 10/12/2001 -0500, you wrote:
> >Just be sure to use a zero-cross firing opto, otherwise you
> will still get
> >random spikes on switching.
> >
> >Chris
> > >
> > > Ash,
> > >
> > > Inside of solid state relay is a triac with opto-coupler
> on input with
> > > Ziner diode thru a resister. Triacs are always better.
> > > mechanical relay
> > > Will generate spike RFI it is bad for sensitive electronics.
> > >
> > > Andre Abelian
> > >
> > >
> >
> >--
> >http://www.piclist.com hint: The PICList is archived three different
> >ways.  See http://www.piclist.com/#archives for details.
>
> --
> http://www.piclist.com hint: PICList Posts must start with ONE topic:
> [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads
>
>

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads