Re: [CAD_CAM_EDM_DRO] RE: Power Supply (slightly off-topic) car alternators

from 12 years rebuilding alternator and starters, a delco with 50 amps of
output would like 2-4 hp and 3700-10,000 rpm. ditto on low efficiency. cul
brian f.

----- Original Message -----
From: "Dave Halliday" <dh@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Friday, December 16, 2005 1:50 PM
Subject: [CAD_CAM_EDM_DRO] RE: Power Supply (slightly off-topic) car
alternators


> Actually, if you reworked the regulator, you can get just about any
> voltage you want.
> The regulator is the only thing setting the output at 12 volts.
> (actually closer to 14 for charging)
>
> When I was playing around with alt-energy, these were a good and cheap
> source for generators.
>
> Downside: they are inefficient and lossy -- they are designed to be
> manufactured cheaply and to run in a hostile environment (all the heat
> and gunk under a car hood). Efficiency was not a design criteria. You
> would need to watch the horsepower of your spindle motor.
>
> Google the internet for circuit info -- here is one such place:
> http://members.1stconnect.com/anozira/SiteTops/energy/Alternator/alterna
> tor.htm
>
>
>
> > -----Original Message-----
> > From: roboticscnc [mailto:gsm42@...]
> > Sent: Friday, December 16, 2005 3:36 AM
> > To: CAD_CAM_EDM_DRO@yahoogroups.com
> > Subject: [CAD_CAM_EDM_DRO] Re Power Supply
> >
> >
> > Just a thought, has anyone used an old car alternator belt driven off
> > the lathe spindle motor ? The cost would be virtually nothing and you
> > could run 2 in series for 24 volts. The only dissadvantage I can see
> > is that you couldn't test toolpaths without the spindle running. Would
> > any other equipment be needed ( capacitor, etc. )
>
>
>
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