That would make sense. Just as a quick search I see 4, 8 and possibly even 16Khz pwm frequencies. I'll report on what mac thread frequency this pine star board can sustain once I get there.
We can find a board with an fpga onboard if its not workable on its own. On Fri, Apr 5, 2024, 9:30 AM Thaddeus Waldner <thadw...@gmail.com> wrote: > As far as I know, current feedback loops update on each PWM cycle. > > > > On Apr 5, 2024, at 7:27 AM, Curtis Dutton <curtd...@gmail.com> wrote: > > > > yessir thank you. I studied it a fair bit a few years ago. It's part of > the > > inspiration for this for sure. > > > > I'd like this new board to run out of thr box linuxcnc hal and maybe we > can > > port and adopt lots of the STMBL code into this project. > > > > My goal is to have this "controller" be a bone stock hal based system > much > > like STMBL except not the "stripped" down hal that Rene created. Which > I'd > > assume he had to do because of processing and memory power constraintd. I > > havent yet started playing with my pine star board but it should have > more > > than enough power. Hopefully we can get at least a 4khz thread going on > it. > > Maybe more! > > > > What are modern servo amplifiers running their pid loop at these days? > > > > > >> On Fri, Apr 5, 2024, 8:13 AM andy pugh <bodge...@gmail.com> wrote: > >> > >>> On Fri, 5 Apr 2024 at 11:59, Curtis Dutton <curtd...@gmail.com> wrote: > >>> > >>> I'm starting a new project to build a motor drive based upon igbt > >> modules. > >>> Hoping to build something that has a single type of controller that > will > >>> plug and play with various capacity igbt modules for various size > motors. > >> > >> Are you aware of the STMBL project? That would seem like a very good > >> starting point, as it already plays well with LinuxCNC, and works with > >> a wide range of feedback types (Hall sensors, resolvers, encoders and > >> serial protocols) > >> In fact you could probably copy the LV board with only minor changes > >> (to account for component obsolescence) and make a new HV/power board. > >> > >> https://github.com/rene-dev/stmbl/blob/master/README.md > >> > >> -- > >> atp > >> "A motorcycle is a bicycle with a pandemonium attachment and is > >> designed for the especial use of mechanical geniuses, daredevils and > >> lunatics." > >> — George Fitch, Atlanta Constitution Newspaper, 1912 > >> > >> > >> _______________________________________________ > >> Emc-developers mailing list > >> Emc-developers@lists.sourceforge.net > >> https://lists.sourceforge.net/lists/listinfo/emc-developers > >> > > > > _______________________________________________ > > Emc-developers mailing list > > Emc-developers@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-developers > > > _______________________________________________ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers > _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
