Motor controller

Just buy one on ebay.

220 volt 1 or 3 phase in. 220 volt 3 phase out

120 volts in, 1 or 3 phase in, 220 3 phase out.

lots of choices starting at $0.99

If you're a raw beginner, I suggest that you look for development kits from the microprocessor makers. Get a kit that does what you want, sorta, then modify it from there.

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Tim Wescott 
Control system and signal processing consulting 
www.wescottdesign.com

Try this book:- "Electric Drives and their Controllers" by Richard M. Crowder, ISBN 0-19-856565-8.

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Thanx for suggestions guys, but i would like to build one from teh scratch. I made few dc controllers up to 500W but i newer try to make one with three phase..

On Sat, 26 Jul 2014 11:42:26 +0200, en2 wrote: (top posting fixed)

Well, the book suggestion should be spot-on, then. Motor controllers is a book-length subject, if you gather all the bits and bobs into one spot.

As for starting with a demonstration board (or schematic) -- having a working example of something you've never, ever built before is often a great help in making sure that you're not doing something profoundly stupid.

--
Tim Wescott 
Control system and signal processing consulting 
www.wescottdesign.com

I have a design that (in theory) can handle up to 5KW with suitable cooling, although I only run it at a few hundred watts.

Basically, though, the "design" is just a motor control MCU and a motor driver chip, plus a few discretes around it. Most of the problem is solved in software or on-chip peripherals.

----------- Could not agree more :-). I will definitively do that.

@DJ quite nice design and idea. Did you try to upgrade this to higher power output ? btw. which linux distro ?. Am on ubuntu 12.04.