[Openec] Patented NiMH charging algorithm

Richard A. Smith richard at laptop.org
Fri Aug 3 18:40:09 EDT 2007


Rafael Enrique Ortiz Guerrero wrote:

> stupid questions:
> 
> are they using the same general algorithm for the lifepo4 batteries..?

No.  The LFP charging is trival.  Its not affected (enough to matter) by 
temperature.  The discharge/charge voltage cutoffs don't float around 
like they do in NiMH.

> how can be this algorithm made from zero, or what would be the procedure 
> to do so, (im guessinfg it would be too complicated)..?

If its patented is does not matter that you created it from zero.  You 
are still infringing.  You have to come up with a different algorithm 
that achieves the same result.  To come up with that algorithm you have 
to understand a lot about NiMH chemistry.  And even then you might still 
infringe depending on how similar it works out to be to the patent.

-- 
Richard Smith  <richard at laptop.org>
One Laptop Per Child



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