CAD CAM EDM DRO - Yahoo Group Archive

Re: brushless servos without hall commutation

Posted by bluecoast1
on 2004-10-11 09:50:31 UTC
Hey,

actually I read a microchip appnote (one of the originals on brushless
control) and they optionally ran it on back-emf sensing, and they
blipped the motor or something to get the initial position via
back-emf before starting up (I think).

This seems like it might be okay for speed control but maybe not so
good for position control.

Discussion Thread

bluecoast1 2004-10-10 17:42:40 UTC brushless servos without hall commutation vavaroutsos 2004-10-10 18:07:33 UTC Re: brushless servos without hall commutation bluecoast1 2004-10-10 18:27:26 UTC Re: brushless servos without hall commutation Jon Elson 2004-10-10 19:11:52 UTC Re: [CAD_CAM_EDM_DRO] brushless servos without hall commutation Chris Cain 2004-10-11 00:43:35 UTC RE: [CAD_CAM_EDM_DRO] brushless servos without hall commutation Stephen Wille Padnos 2004-10-11 06:06:22 UTC Re: [CAD_CAM_EDM_DRO] brushless servos without hall commutation bluecoast1 2004-10-11 09:50:31 UTC Re: brushless servos without hall commutation vavaroutsos 2004-10-11 11:06:18 UTC Re: brushless servos without hall commutation Chris Cain 2004-10-11 13:00:25 UTC RE: [CAD_CAM_EDM_DRO] brushless servos without hall commutation bluecoast1 2004-10-11 13:22:07 UTC Re: brushless servos without hall commutation Eric Keller 2004-10-12 06:13:51 UTC Re: brushless servos without hall commutation Jon Elson 2004-10-12 09:25:24 UTC Re: [CAD_CAM_EDM_DRO] Re: brushless servos without hall commutation Jeff Sauer 2004-10-12 17:41:04 UTC Re: brushless servos without hall commutation