Homebrew PCBs

----- Original Message ----- 
From: "J" <wyninejr@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Sunday, February 19, 2006 3:04 AM
Subject: [Homebrew_PCBs] AC to PCB


> Does anyone have idea about how to attach an AC line to a PCB board?
> I have a transformer that is actually on the board itself.  Is this a
> good/bad idea?  Do I basically drill a whole and stick the wire
> through the hole and solder it one?  I can't seem to find any
> connector type stuff on digikey.  Also, I plan to have a floating
> ground on the other side of the transformer...i.e. electrical
> isolation.  Should any grounded part of the board be connected to the
> netural line on the AC?  Should there is some kind of connection such
> as through a transient supressor?  Any help is appreciated. Also,
> should there be any type of noise supression on the AC side of the
> board?  What about grounding planes on the AC side?  Thanks!

AC mains voltage, presumably. I'd put an IEC filtered connector on the 
enclosure, with suitable terminals on the PCB. I like the two part ones 
which plug together, like these:

< 
http://www.rapidelectronics.co.uk/rkmain.asp?PAGEID=80010&CTL_CAT_CODE=30236&STK_PROD_CODE=M34159&XPAGENO=1 >

Leon 

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