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Old 12-08-2009, 02:16 PM
aks9389 aks9389 is offline
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Smile Battery charge regulator with MPPT facility

hii...
can anyone tell me a company name where i will get a battery charge regulator (o/p=10.5 volts) with MPPT facility in it ...and it has to be used in the power sysytem of a nanosatellite..

thanks
Abhishek
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Old 01-16-2010, 08:11 PM
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This company makes a wide variety of MPPT products.

http://www.morningstarcorp.com/en/home
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Old 01-16-2010, 08:21 PM
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Is this nanosatellite actually going into orbit? If so, you will need hardware that is certified for operating in space - unless the device will be in an environmentally controlled chamber.

If you have access to environmental chambers, you could start off with military specification hardware, and qualify them by subjecting them to heating/cooling cycles similar to what they will experience in space for several months. Those that survive will have a good chance.

You won't be able to use commercial off-the-shelf solutions. They wouldn't survive.
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Old 01-16-2010, 08:46 PM
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This page gives into for nanosatellites using MPPT and off the shelf parts. Well written.

ssdl.stanford.edu/ssdl/images/stories/AA236/A06Fall/.../ssc06-vi-2.pdf
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Old 01-16-2010, 09:41 PM
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Your link didn't "take" properly.

Here's the correct link:
http://ssdl.stanford.edu/ssdl/images...ssc06-vi-2.pdf
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Old 01-17-2010, 06:33 PM
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Military spec or not, silicon is still silicon.

If your design works under liquid nitrogen its a safe bet it can handle space,
but keep in mind that you might need some rather expensive insulation to keep the battery warm enough through 12 hours of darkness.
One option might be to keep all of the electronics warm.
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Old 01-17-2010, 06:52 PM
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Thats the easy part! Just keep its orbit close to the sun.

_joke_
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Last edited by retched; 01-30-2010 at 03:05 AM.
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