MP3 Player compatibility
jon at axismilton.ltd.uk
Mon Oct 13 13:45:48 BST 2003
On 13 Oct 2003 at 11:50, Jeff LaCoursiere wrote:
> 100 amp hours a day
The depressing thing is that energy is so cheap that despite your
investment this would cost only a few pence (being just over a kWh) from
> Along this thread (and to make it at least partially related to the list
> topic), does anyone know of a power supply that would produce the 12v and 5v
> lines for the motherboard from a 12v DC supply (such as a car battery)?
Muggins here does make small switching power supplies but geared to
sorting a particular application involving a pre-existing (in effect
sealed) GSM type tracking box and an automotive environment. In fact a
large GSM provider sells the system with the issue I fix.
However 12v to 5v is a pretty common thing to want to do so off-the-shelf
should work (try browsing RS/Farnell/similar catalogues) but let me know
That 5v needs producing very close to where it is wanted I mean inches
not feet. And you probably want it to be >90% efficient unless it is a
very very low power motherboard.
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