[sdiy] Why dual grounds?

David Ingebretsen dingebre at 3dphysics.net
Wed Jun 9 08:00:24 CEST 2010


Thanks Paul. I've been reading about ground loops, star grounding, and other
grounding concepts as I've been puzzling over this.

David

~~ -----Original Message-----
~~ From: synth-diy-bounces at dropmix.xs4all.nl [mailto:synth-diy-
~~ bounces at dropmix.xs4all.nl] On Behalf Of Paul Perry
~~ Sent: Tuesday, June 08, 2010 11:43 PM
~~ To: synth-diy at dropmix.xs4all.nl
~~ Subject: Re: [sdiy] Why dual grounds?
~~ 
~~ As close to the power supply as possible.
~~ So there is as little 'ground' in common as possible.
~~ 
~~ Another thing to read about in grounding , is "star grounding".
~~ Plenty of references on the net for this ;D
~~ 
~~ paul perry Melbourne Australia
~~ 
~~ ----- Original Message -----
~~ From: "David Ingebretsen" > Won't these two grounds eventually have to be
~~ connected together though? I
~~ > guess that's my main question. I can layout the PCB with separate
~~ grounds,
~~ > I'm just baffled as to where/when these two grounds touch each other.
~~ >
~~ 
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