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From: (no name) (no email)
Date: Fri Mar 01 2002 - 23:18:45 EST
"Owen H. Morgan" writes:
>Anyone know how clean the output from a standard alternator is? Would
>it be safe to keep the computer connected to a battery while it is
>being charged from the alternator? A fully charged 12V NiMH battery
>can reach around 15V, so I don't expect the battery voltage when
>running the alternator will be a problem, but starting the engine from
>the battery the computer is connected to is probably a big no-no.
<snip>
An alternator generates 3 phase full way, variable frequency, AC power
that is then fed to a 3 phase, full wave diode bridge.
The output of the bridge is DC with a ripple; however, when connected to
a large house battery bank, which is really just a humongous capacitor,
the ripple gets lost in the wash for most applications.
As far as your puter is concerned, be gutsy and check it out.
A 2nd possibility.
A dedicated battery with a small solar cell to maintain it.
HTH
Lew
S/A: Challenge, The Bullet Proof Boat (Under Construction In The
Southland)
Visit: <http://home.earthlink.net/~lewhodgett> For Pictures
There are no problems, only varying degrees of challenging opportunity
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