Well, I guess I will find out. I just picked up two amps (supposedly new) for $20 each plus shipping. Might be too good to be true, but I guess at that price if I blow them up no big deal. I have started shopping for an oscilloscope just in case...
--- On Sun, 4/24/11, andy pugh <bodge...@gmail.com> wrote: > From: andy pugh <bodge...@gmail.com> > Subject: Re: [Emc-users] Motion control cards > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Date: Sunday, April 24, 2011, 8:01 AM > On 24 April 2011 15:39, Robert Pabon > <robertpa...@corseusa.com> > wrote: > > > http://www.copleycontrols.com/motion/pdf/7225ac.pdf > > What they are doing is using two analog +-10v to > represent the current command for the u and v and then they > > are synthesizing w either 120 or 90 degrees apart. > > Why do they do these strange things? > > > This seems pretty doable assuming using something like > the 5i20 than a 7i33 card. > > Indeed. The bldc component outputs individual UVW > amplitudes, you > would just ignore the W. > > I still think an 8i20 would be cheaper and easier. (except > for needing > an external PSU) > > -- > atp > "Torque wrenches are for the obedience of fools and the > guidance of wise men" > > ------------------------------------------------------------------------------ > Fulfilling the Lean Software Promise > Lean software platforms are now widely adopted and the > benefits have been > demonstrated beyond question. Learn why your peers are > replacing JEE > containers with lightweight application servers - and what > you can gain > from the move. http://p.sf.net/sfu/vmware-sfemails > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > ------------------------------------------------------------------------------ Fulfilling the Lean Software Promise Lean software platforms are now widely adopted and the benefits have been demonstrated beyond question. Learn why your peers are replacing JEE containers with lightweight application servers - and what you can gain from the move. http://p.sf.net/sfu/vmware-sfemails _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
