Hello,
I'm working with Lab11e (Hall + Sensorless) and i have some questions
I'm using a custom hardware and DRV8301D board. I have seen that the motor can not spin faster than 600rpm when the control is running the hall based control. When i turn to sensorless control the motor can be speed up to it rated speed without problem (3000rpm). Probably sersorless method should be started at lower speed, but I would like to know if there is any speed limitation for hall based control or I have made something wrong.
Comparing the evaluation board with the custom hardware I have seen that the control transition from hall to fast control are softer in the first one. In fact, I have find problem with the transition from fast to hall in the custom hardware. It starts to vibrate turning from fast to hall and from hall to fast continuously. I think that hysteresis band is wide enough (300 rpm) to allow softer transitions. Please, could you give any advice or clue?
Thank you in advance
Borja
