Hi all,

Just thought I'd jump in on this Thread...

Lawrence Lile wrote:
> I've just been working on battery chargers for a mowbot application.  Been
> using NiMH batteries, and a MAX712/713 battery charger IC.   Got a nice 2
> amp charger working on a 2 amp-hour battery, pretty much straight off the
> app notes in the datasheet.

I am in the middle of doing the very same thing, however I wanted to add a
rotary switch to my charger that would make the number of cells selectable
between 6 and 9. The thing is there are 4 points in the basic circuit that
need altering depending on the number of cells, these being R1, Rsense, PGM0
and PGM1. Any suggestions on how I might alter all of these values by
turning one switch?

Thanks for any suggestions,
kind regards,
James Fitzsimons

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