Subject:
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Re: Solar Panel for RCX
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Newsgroups:
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lugnet.robotics
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Date:
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Sat, 3 Jun 2000 22:28:02 GMT
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Original-From:
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Maneesh Soni <maneeshsoni@NOMORESPAMhotmail.com>
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Reply-To:
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maneeshsoni@yahoo{NoSpam}.com
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Viewed:
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2138 times
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In sunny regions, we get about 1000 W/sqm. With 1 square metre of solar
cells, you can get a lot of power. About 100 Wh. This will more than explode
the re-chargeable batteries.
Most solar cells perform at an efficieny of 15 % today. But you lose some in
the process of charging, discharging and voltage conversion etc.
Though powering the RCX directly from sun is not plausible, charging the
batteries is certainly a viable option.
Maneesh
> From: "Pink Tail" <pinkmice@borg.com>
> To: <lego-robotics@crynwr.com>
> Subject: Re: Solar Panel for RCX
> Date: Sat, 3 Jun 2000 16:16:07 -0400
>
> > The RCX with 3 motor connected may need up to 15 watts of power so if
> you
> want
> > to have working with solar power only you may consider to use from one
> to
> three
> > square meters of solar cells :)
>
> Are you sure about that 15 watt figure? That's quite high - ~1.5 amps @ 9v!
> I didn't
> think even the wall transformer they recommend puts out that kind of
> current.
>
> John Barnes
>
>
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