>
>I would have an alternate terminating condition in case the blip doesn't
>occur.  I've been looking at recommendations from various manufacturers, and
>some of them come right out and say that the blip might not happen
>sometimes, even at the high charge rates.  My conclusion is that it's a good
>indicator when it's there, but you can't count on it.  I've seen the blip
>once at .1C, and several times not at .2C.  Apparently the blip is also less
>prounounced as the cell ages.

The info that I used to design a couple commercial projects, is that NIMH
dosen't roll over at full charge, but rather that it's delta goes to zero.

I used an SMPS constant current source, and low side sense resistor to set
the charge rate, then ADC to read the battery voltage, with diodes in
series to expand the scale.
--
Dave's Engineering Page: http://www.dvanhorn.org

I would have a link to http://www.findu.com/cgi-bin/find.cgi?KC6ETE-9 here
in my signature line, but due to the inability of sysadmins at TELOCITY to
differentiate a signature line from the text of an email, I am forbidden to
have it.

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