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Re: gEDA-user: pcb, howto partition power planes?

On Tue, Oct 28, 2008 at 07:07:18PM -0400, John Luciani wrote:
> On Tue, Oct 28, 2008 at 6:53 PM, DJ Delorie <dj@xxxxxxxxxxx> wrote:
> >> Don't you have a number of PCs running 24x7?
> > Yup, at least six of them.
> If you need another fun project ---
> 
> Rack mount power distribution box with a
> PF corrected front end (PF > 0.99) and some high
> efficiency DC-DC converters. ;-)

All modern PCs come with high efficiency DC-DC converters
built-in.  They just get fed from rectified line voltage.
Feed them 300VDC (from the aforementioned PF corrected
front end) and they work much better.  At least that's
what some server farms have started doing.

  - Larry


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