Hello Ivar, And how (in)-efficient on this scale would be something like a massive-coiled power transformer, just in case you have an AC source of arbitrary voltage on the boat? These tend to have a large "inertia" concerning power surges, when you speak of about 10kg of copper coils. When I was a kid, we had some back at home to feed 110V computers brought from the US off the Russian 220V power network, these coils happened to serve well even during a direct lightning hit to our house ;)
Perhaps you could also rig up something like an online UPS with separated circuits, or some handmade variant of that - so the Sun Ray always feeds off a 12V battery, no matter what input currently feeds the battery itself... Just some of our 2 kopeyks to the discussion ;) Tuesday, August 5, 2008, 2:34:52 AM, you wrote: IJ> Hello Bob, IJ> Invertors are on board but they tend to have a low efficiency with the IJ> small loads which the Sun Ray uses(65-80% efficiency). IJ> Then the standard Sun Ray power supply also is not very efficient at small IJ> loads. I measured an efficiency of 40%. IJ> So while the Sun Ray is very power efficient I am loosing the advantage in IJ> the power supply chain. IJ> I just asked for the Voltage/Current specs. IJ> Please give me some indication. IJ> Then I would be able to get a really efficient solar powered Sun Ray on my IJ> boat. Which ofcourse I can show of to potential customers ;-). IJ> Kind regards, IJ> Ivar IJ> _______________________________________________ IJ> SunRay-Users mailing list IJ> [email protected] IJ> http://www.filibeto.org/mailman/listinfo/sunray-users -- Best regards, Jim Klimov mailto:[EMAIL PROTECTED] _______________________________________________ SunRay-Users mailing list [email protected] http://www.filibeto.org/mailman/listinfo/sunray-users
