look here: <http://ieeexplore.ieee.org/iel5/9840/31018/01440974.pdf> or Google for "perpetual environmentally powered sensor networks" pdf
It's a good primer on what you're looking at. -Ben On Tue, June 26, 2007 11:12 am, Steve McKown said: > On Monday 25 June 2007 02:01:09 pm manu suryavansh wrote: >> Hi, >> I am using tmote sky and I want to use a rechargeable battery with the >> motes. I wanted to know is there any specific type of battery I should use >> with particular amount of output current. Also if someone can tell me any >> voltage regulator/dc dc converter to use with the battery which can give >> 3v >> output. > > IIRC, the tmote sky data sheet gives you current draws and voltage > requirements. You can use these to match against a given battery chemistry. > If you watch out for flash program voltage limits, you'd probably have good > luck with NiCad or NIMH rechargeable AA's. > > Since you mention a regulator, perhaps you are thinking of Lithium? The > other > chemistries I mentioned cannot exceed the voltage specs for the tmote > (3.6v), > so you don't need a regulator. You would with many lithium chemistries. I > don't have a specific regulator for you, but look carefully at the response > curves. On one design we used a regulator with a very low quiescent current > (internal power draw), but it couldn't react fast enough to the power demand > when the cc2420 was coming on, causing the voltage rails to sag too much and > interfering with the operation of some of the other onboard components. > > Steve > _______________________________________________ > Tinyos-help mailing list > Tinyos-help@Millennium.Berkeley.EDU > https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help > -- The difference between the right word and the almost right word is really a large matter- it's the difference between a lightning bug and the lightning. -Twain _______________________________________________ Tinyos-help mailing list Tinyos-help@Millennium.Berkeley.EDU https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
