Jon, I believe that there is an encoderless technique that uses the hall effect sensors and reading the back emf.
Maybe that's what's being talked about. Cheers, Peter Jon Elson wrote: > Flying Electron wrote: >> I don't know much about servos at all, but I was under the impression >> that brushless servos had less angular position accuracy then brushed dc >> servos? It looked like the brushless dc motors had more power for the >> same size package and were a little cheaper, but I'm not sure what the >> tradeoffs are. >> > Why would this be true? The brushless motors are still controlled by a > servo loop reading > position by encoder. The resolution of the encoder and the tuning of > the servo loop are > what matters. > > Jon > > ------------------------------------------------------------------------------ > This SF.Net email is sponsored by the Verizon Developer Community > Take advantage of Verizon's best-in-class app development support > A streamlined, 14 day to market process makes app distribution fast and easy > Join now and get one step closer to millions of Verizon customers > http://p.sf.net/sfu/verizon-dev2dev > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > -- ----------------------------------------------------------------------------- eStore: http://www.homanndesigns.com/store Web : http://www.homanndesigns.com ModIO - Modbus Interface Unit email : pe...@homanndesigns.com DigiSpeed - Isolated 10Vdc I/F Phone : +61 421 601 665 TurboTaig - Taig Mill Upgrade board ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
