DC/DC voltage doublers have been around for a long time.
Neat trick, but they eat more power than just using 2 batteries to get that
voltage.
The only advantage is space savings.
A couple of 6 volt bicycle generators for lights will do the job nicely
and are not uncommon in the third world already.
Some vanes attached to the spokes made out of old plastic bottles , tin
cans or pieces of bark, sit bike upside down facing the wind...windmill.
Ode
At 10:21 AM 7/29/2007 +0900, you wrote:
I'm thinking of a 4-9V rechargeable Nicad setup. A custom solar charger
to hold 4 9-V batteries might do the job nicely. If the same device had
a switch to go from charging to output that would be neat.
It could have a simple built-in constant current controller and heavy-duty
alligator clips.
The idea would be to give these devices away through some existing,
trustworthy agency, so the cost would have to be very modest, especially
because the few people involved in this have no funding at present.
SOTA Instruments has a patented method to turn the output of one 9-V
battery into 36 volts in their low-cost Silver Pulser Lite. I think
that device is constant current also.
We'd not be aiming to do blood electrification, though, just make the EIS,
and at $110, the Lite would be much too Heavy (expensive, that is.)
The 4-9 plan might be cheaper and easier but I'm no engineer and am not
sure. Bottom line, though: I am pretty sure the idea is workable, and
could alleviate some of the misery the invasion and occupation have produced.
JBB
On Saturday, Jul 28, 2007, at 23:34 Asia/Tokyo, mborg...@att.net wrote:
What about using solar powered batteries?
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