integration of Back-emf method for Sensorless BLDC

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

integration of Back-emf method for Sensorless BLDC

928 Views
shey_alex
Contributor II

Hi,

I have a question regarding the BACK-EMF integration method for sensorless control of BLDC. 

How does the threshold value (V_thres) to trigger the commutation is usually calculated? Is it based on the motor parameters or it's trial and error procedure? I haven't found any explanation in application notes about this issue.

Thank you for your answer!

0 Kudos
1 Reply

909 Views
pachamatej
NXP Employee
NXP Employee

Hello,

have you checked the following AN?

https://www.nxp.com/docs/en/application-note/AN4597.pdf

Please let us know if you need further guidance.

Best regards,

Matej

0 Kudos