On 06/01/2010 04:16 AM, WestHurley ComputerReCycling wrote: > A friend is planning a field trip with an older Laptop. He wants to run > this Laptop and charge its battery from a 12V auto battery. > > As a result, he was wondering what is more efficient for this a DC to DC > Converter or a DC to AC Inverter?
In general, just changing Voltage on DC is going to be far more
efficient than generating alternating current, then converting that back
to DC. You loose a lot of power to heat and EM in the DC -> AC, AC ->
DC process.
-Sean
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Sean Dague Mid-Hudson Valley
sean at dague dot net Linux Users Group
http://dague.net http://mhvlug.org
There is no silver bullet. Plus, werewolves make better neighbors
than zombies, and they tend to keep the vampire population down.
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