dave.com
10 mW
Finally got motivated to hook up the motor and controller and see if it all works. The controller is a Kelly KEB72801X with the ultra high speed firmware.
http://www.youtube.com/watch?v=xU2pruxPJoU
I tried tuning the bracket position with the motor running slowly, but couldn't really see any big reductions in no-load current. Maybe the motor needs to be under load, with the controller set to constant speed mode.
The bracket works ok, but there are issues. I allowed 0.5mm clearance between the motor can and bracket. The concentricity of the can and protruding screw heads make this a bad idea. 1mm would be better. The entire bracket can rotate to change hall timing, as well as each individual hall sensor. I was thinking I could fine tune the individual hall positions using a scope, but have yet to try it.
Next step is to break out the 20S3P worth of nano tech packs...
If anyone is interested in the Solidworks files of the bracket, pm me. I also have a model of the motor shell.
Dave
http://www.youtube.com/watch?v=xU2pruxPJoU
I tried tuning the bracket position with the motor running slowly, but couldn't really see any big reductions in no-load current. Maybe the motor needs to be under load, with the controller set to constant speed mode.
The bracket works ok, but there are issues. I allowed 0.5mm clearance between the motor can and bracket. The concentricity of the can and protruding screw heads make this a bad idea. 1mm would be better. The entire bracket can rotate to change hall timing, as well as each individual hall sensor. I was thinking I could fine tune the individual hall positions using a scope, but have yet to try it.
Next step is to break out the 20S3P worth of nano tech packs...
If anyone is interested in the Solidworks files of the bracket, pm me. I also have a model of the motor shell.
Dave