RE: Power supplies

["Paul" <groups@xxxxxxx>]

OK thanks.

Paul.

> -----Original Message-----
> From: Dave McLaughlin [mailto:dave@xxxxxxx]
> Sent: 22 May 2003 15:26
> To: ukha_d@xxxxxxx
> Subject: Re: [ukha_d] Power supplies
>
> NO NO NO.. Keep the AC gnd isolated. GND in my drawing is the OUTPUT
power
> supply GND, often called common, negative or 0V so can often be very
> confusing.
>
> For my drawing, use the term 0V instead and this will make it much
> clearer.
>
> Dave...
>
> ----- Original Message -----
> From: "Paul" <groups@xxxxxxx>
> To: <ukha_d@xxxxxxx>
> Sent: Thursday, May 22, 2003 3:25 PM
> Subject: RE: [ukha_d] Power supplies
>
>
> Should chassis GND, AC GND and this new PSU 0V be connected together?
Or
> should AC and chassis GND be kept separate from 0V on the PSU?
>
> Paul.
>
> > -----Original Message-----
> > From: Dave McLaughlin [mailto:dave@xxxxxxx]
> > Sent: 22 May 2003 15:13
> > To: ukha_d@xxxxxxx
> > Subject: Re: [ukha_d] Power supplies
> >
> > HI Paul,
> >
> > Easy..
> >
> > Connect 2 PSU's as follows.
> >
> > +12V on second supply to GND on first. Your +12V is now the +Ve
output
> on
> > the first supply and your -12V is the GND on the second supply.
GND will
> > be
> > the +Ve and -Ve (GND) on the joined connection. I'll try to do a
diagram
> > below... I'll use a variable spaced font so make sure you use
that
> > yourself
> > or it will look strange.
> >
> >            PSU1              PSU2
> >      +               -      +               -
> >       !               !       !               !
> >       !               !-----!               !
> >       !                    !                   !
> >       !                    !                   !
> >
> >      +12V           GND           -12V
> >
> >
> >
> > Hope this makes sense
> >
> >
> > Dave...
>
>
>
> ** UKHA2004 BE THERE! ** - start planning now.
>
> http://www.automatedhome.co.uk
> Post message: ukha_d@xxxxxxx
> Subscribe:  ukha_d-subscribe@xxxxxxx
> Unsubscribe:  ukha_d-unsubscribe@xxxxxxx
> List owner:  ukha_d-owner@xxxxxxx
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/