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VESC | What kind of control is BLDC?

vesc

#1

I am trying to figure out the difference in control between BLDC or FOC on the VESC. FOC is obviously field-oriented control, however is BLDC some sort of scalar control?


#2

Trapezoidal commutation, in sensorless mode I think the rotor position is estimated by sensing the zero crossing of back EMF.
Here’s an interesting video of the technique: