Re: Electric Power and the Tesla car


"J.A. Legris" <jalegris@xxxxxxxxxxxx> wrote in message
news:1154957184.719048.327240@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Randy M. Dumse wrote:
"J.A. Legris" <jalegris@xxxxxxxxxxxx> wrote in message
news:1154913322.598884.309310@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx > You're
right..

http://en.wikipedia.org/wiki/Image:Supercapacitors_chart.png

--
Joe Legris

Huh. I went to the Maxwell sight, and that seems to be what they are
promoting for the BoostCaps or Ultracapacitor technologies.

When they first came out, I opened one of the small 1/2" ones, and what
outside looked like an electrolytic cap I found inside looked like two
stacked silver oxide coin cells. My conclusion at the time was they
weren't really much different than a rechargeable battery in nature.

But those had high ESR (Equivalent Series Resistance) and would slowly
take up a charge and slowly return it at close to a constant voltage,
seeming even more like a battery.

So I don't know much about these new Boost Caps, other than what I'm
reading now. Still seems like overhead in a robot to me. At least one
with any kind service period.

--
Randy M. Dumse
www.newmicros.com
Caution: Objects in mirror are more confused than they appear.

See the articles too:

http://en.wikipedia.org/wiki/Supercapacitors

http://world.honda.com/FuelCell/FCX/ultracapacitor/

--
Joe Legris

In my mind's eye I see the supercaps as that extra boost when you need to
get out of a hole. Especially if the motor will accept the extra boost such
as a well balanced servo with a good PID controller.

Wayne




.

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