alt.energy.renewable

wrote in message
news:792f81ac-6137-4fb9-b4ed-dc27170bc730@n75g2000hsh.googlegroups.com...
> On Mar 7, 5:21 pm, "Ulysses" wrote:
> > wrote in message
> >
> >
news:b61799de-60d3-4025-985a-6079ca6e7db8@y77g2000hsy.googlegroups.com...
> >
> > > > I've done it for three years now. The batteries have a 6 year
warranty
> > > > and cost $64 each. The alternator came from a junk yard at $10. The
> > > > charge controller cost about $175.
> >
> > > > Todd Marshall
> > > > Plantersville, TX
> >
> > > You may be interested in my home made voltage regulator for automotive
> > > or marine alternators;
> >
> > http://www.amsterdamhouseboats.nl/voltage_regulator.htm
> >
> > > It's a free build yourself design, not commercial; but please link to
> >
> > Thanks for the link to your design but I have a question: you say "It
was a
> > long time ago, and I can't remember the details; but you can clearly see
the
> > little diode bridge that feeds the regulator. Bypass the regulator, so
that
> > the diodes feed the brush directly. I can't remember exactly what I had
to
> > do to bring a wire from other brush out of the case, instead of letting
it
> > earth to the case; but it wasn't very hard." It is not clear to me how
to
> > bypass the built-in regulator. It's simple enough to bring out a wire
to
> > the positive brush to feed the field coil but what do you connect it to?
> > Full power directly from a battery or to the alternator's positive
output?
> >
> how to bypass [or remove] the original regulator is different for each
> alternator. I've converted a Delco, several Bosch's and a Leese-
> Neville. All were very easy.
> the positive brush is fed from the excitation diode bridge, not the
> battery. The excitation diodes are only used to provide field current,
> so protect the battery from accidental discharge. The negative of the
> excitation diode bridge is connected to the case [ground, earth,
> etc.]
> The regulator circuit senses battery voltage through a dedicated wire
> ["battery sensed", compensates for transmission losses] and adjusts
> the current between the negative brush and the case [earth, ground,
> negative] to hold the voltage set by the adjustment pot.
> If the original regulator in your alternator interrupts the positive,
> then you bypass the regulator and connect to the negative brush. if it
> interrupts the negative, then you wire my regulator instead of the
> original.
> I'm pretty sure that the polarity of the field coil can be reversed
> without any effect [if that make connections easier], but I haven't
> tried it.
> Regards, Mark
>
>

Thanks!