From: pvm <pvm...@gm...> - 2007-09-28 15:01:06
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Chuck Randall wrote: > > Do you really need to stick with Lithium? We are considering 4.8V > NiMH battery packs, such as these: > http://www.batteryspace.com/index.asp?PageAction=VIEWCATS&Category=471 > I read that lithium polymer is the best power to weight ratio and weight is an issue for me. I was also just reading the data sheet of a component I'm interfacing the Gumstix with. it operates between 2.8v and 5v but, if you provide it below 5v then performance is reduced. Does anyone have experience with how bad the RF interference and line ripple is with a switching vreg? I know there are things you can do to reduce the ripple but can you shield from the RF with an metal enclosure? Then again if instead I used a linear vreg 7.2 -> 5v doesn't seem like that big a drop so might the heat produced be minimal and that would avoid the ripple and RF problem. -- View this message in context: http://www.nabble.com/Gumstix-Battery-Power...-tf4521712.html#a12942237 Sent from the Gumstix mailing list archive at Nabble.com. |