[MLB-WIRELESS] more new edens

[Gizi]

Also on the mini-box website is this PDF http://www.mini-box.com/Power.pdf
which covers the making of an additional 12V regulator to eliminate at
possibility of those 18V spikes shutting down the system in Automotive
Applications.  It appears to include some PIC micro controller code to help
handle power-up and shutdown sequencing.

Mark

----- Original Message -----
From: "Steven Haigh" <netwiz at optusnet.com.au>
To: "Mikey A" <spikeymikey at optusnet.com.au>
Cc: <melbwireless at wireless.org.au>
Sent: Thursday, September 04, 2003 10:34 AM
Subject: Re: [MLB-WIRELESS] more new edens


> Mikey A wrote:
>
> > Tony Langdon wrote:
> >
> >>> It's not rocket science, as any major load such as headlights or
> >>> aircon running in a car causes a voltage drop to some extent...
> >>> minimising this will solve most problems - and will probably make
> >>> your car run better too :)
> >>>
> >>
> >>
> >> The question is whether the issue is low frequency "dips" or high
> >> frequency
> >> rubbish that's causing the problem.  The high frequency stuff can
> >> usually be
> >> handled by good filtering and grounding.  the voltage irregularities
may
> >> need the DC-DC converter to fully tame - or simply, a SLA battery
> >> charged
> >> from the car's electrical system via a diode and current limiting...
> >>
> > wouldn't a nice big capacitor like they use in car audio stop the dips
> > when things like lights and the such are started?
> >
> Quite possibly. I've never needed to test this theory as I haven't had
> any issues... I'd say this is because I had a decent sized battery
> (560CCA - about 100Ah), and another decent sized battery (550CCA - again
> about 100Ah) in the boot hooked up in parallel.
>
> --
> Signed,
> Steven Haigh
> http://wireless.org.au
> (Visit https://wireless.org.au to install our Root Certificate.)
>
> You can lead a fool to wisdom but you can't make him think.
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>
>
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