Interesting alternative to buying a controller for your motor. Of course, this one only works with a brushed DC motor, adding or subtracting batteries out of his bank to vary the voltage.
I guess in theory this could be applied to a charging system as well, adding or subtracting batteries to match the varying voltage coming off of a solar panel.
Fair winds,
Eric
Marina del Rey, CA
--- In electricboats@yahoogroups.com, Kirk McLoren <kirkmcloren@...> wrote:
>
>
> this guy powers an electric vehicle and switches in and out to draw on the
> highest charge
> http://www.redrok.com/ev.htm
>
> <snip>
> The controller adds or subtracts packs to maintain the required average number
> of packs in series. The determination of whether to add, subtract, or maintain
> the current number of packs is done at the rate of 100 times decisions per
> second.
>
> 1. If it is determined that a pack is to be added to the string the controller
> checks the voltage of all the packs. Which ever pack has the maximum voltage is
> the one that will be added to the string.
>
> 2. If it is determined that a pack is to be subtracted from the string the
> controller checks the voltage of all the packs. Which ever pack has the minimum
> voltage is the one that will be removed from the string.
>
> 3. Of course if no change in the number of packs is required then keep the
> status quo.
>
>
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