From: Søren S. C. <li...@ss...> - 2010-09-05 13:46:24
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Hi JL, > WOW I am shocked I got it in one of better ways of doing it. I knew > about the having to watch each cell part thats why I figured would be > best to display all cell on the battery and a total voltage and a > lowest voltage. Prob a tad overkill but I am a paranoid type. Now to > just get my arduinos working with the overo. Great that you found a working solution. For future reference I just thought I would make a link to a dedicated IC like: http://focus.ti.com/lit/ds/symlink/bq77910.pdf which I think as well can handle the job. TI have a lot of more stuff available at http://focus.ti.com/paramsearch/docs/parametricsearch.tsp?family=analog&fami lyId=413&uiTemplateId=NODE_STRY_PGE_T, and Linear, Maxim (and most likely others as well) make a lot of similar great stuff being able to handle several stacked cells as well... Using one of these dedicated ICs makes it possible to do cell balancing (for some of them), meaning that they can charge a low voltage cell from higher voltage cells => You will run out of power from all cells simultaneously (of cause making a lot of assumptions :-) and thereby doesn't have to stop when the weakest cell is empty => Longer battery time :-) Best regards - Good luck Søren --- SSC Solutions ApS - Denmark - www.ssc-solutions.dk |