On Tue, Aug 5, 2008 at 8:34 AM, Ivar Janmaat <[EMAIL PROTECTED]> wrote:
> Hello Bob, > > Invertors are on board but they tend to have a low efficiency with the > small loads which the Sun Ray uses(65-80% efficiency). > Then the standard Sun Ray power supply also is not very efficient at small > loads. I measured an efficiency of 40%. > So while the Sun Ray is very power efficient I am loosing the advantage in > the power supply chain. > I just asked for the Voltage/Current specs. > Please give me some indication. > Then I would be able to get a really efficient solar powered Sun Ray on my > boat. Which ofcourse I can show of to potential customers ;-). > > Kind regards, > > Ivar > > Perhaps the best solution would be a DC-DC regulator circuit. More efficient than an inverter, but still efficiency losses. Something like this would supply the 2.5A the Sunray 2 adapter is rated at: http://www.batteryspace.com/index.asp?PageAction=VIEWPROD&ProdID=2494 Just another note, I have accidentally run a Sunray 2 on +15V DC for a few days, due to having the wrong AC-DC adapter plugged in. No noticible harm done, but who knows how it may affect them long term. - Murray
_______________________________________________ SunRay-Users mailing list [email protected] http://www.filibeto.org/mailman/listinfo/sunray-users
