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[DPRG] Re: PROJECT HELP

Subject: [DPRG] Re: PROJECT HELP
From: David P. Anderson dpa at io.isem.smu.edu
Date: Wed Jul 27 14:45:20 CDT 2005

Hi,

Mike,

First question:

How are you presently controlling the three ducted fan motors?

Are you using an H-Bridge or an electronic speed controller?

If yes, how many, and how are you presently driving them?

regards,
dpa


> Ok guys (and ladies), here's a bit more info on my project that I need
> help with.  As previously posted, it is a flying platform using 3 ducted
> fans powered by 12 volts dc on a tether (a triangle with a vertically
> mounted fan at each tip).  
>  
> I have obtained a hover, although briefly, since the craft tends to
> wobble and then pitches over.  I need your help in designing the
> electronics to control the three ducted fans so that I have a stable
> hover.  While I have good electronics skills, theory is way beyond my
> capability.  I will need help with the schematics, etc.  In other words,
> I am completely clueless!
>  
> Mike Pettit

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