On Sun, Nov 15, 2009 at 07:00:28PM +1100, Frank Tkalcevic wrote: > > range, but allow you to run up to 1500 watts and 20,000 rpm > > or more, > > I looked at those motors once, but was stumped with finding a suitable power > supply. Where do you find a 12v 125A power supply? (or whatever it works > out to be)
It's nice to have supply voltage headroom for the H-bridge, and an inductive load would allow the PWM to transform e.g 24v 65A to your needs, given good flywheel diodes. A Cosel P1500E-24 is pricey new: http://www.plccenter.com/buy/COSEL/P1500E24 but maybe something similar can be found on fleabay. The thing's only the size of a shoebox, and the one I had was also good for 240v input. Erik ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
