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Calculating RPM from BEMF frequency of BLDC motor
Tomsik:
Hello,
I'm a beginner in driving motors and I need to calculate RPM (rotation speed) from frequency BEMF signal on 1-phase of a 12N14P motor when it'is possible.
I measured 1.6kHz repeating signal (sinus) at 1-phase of BLDC motor.
Can I calculate RPM from these parameters?
Thank you
mikerj:
You would need to know the number of poles in the motor to derive RPM from that figure.
mzzj:
https://www.rcgroups.com/forums/showthread.php?2779762-How-many-poles-on-a-motor
Tomsik:
According to the shared thread I think I have 12 poles of stator, it means 6 pair poles.
Tomsik:
Please help me :)
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