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4 Poles BLDC motor

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Prodigy 200 points
Other Parts Discussed in Thread: TMS320F28069M

I was wondering if its possible to driver a 2 pairs, 4 Poles BLDC motor with TMS320F28069M technology? if yes we are planning to change our 8 poles motors with 4 pole motors.

thank you.

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    TI__Guru** 119340 points

    InstaSPIN-FOC and -MOTION have no pole limitation.

    Changing the poles will of course change your available Torque (from 8 to 4 will reduce your torque in half given the same flux and current capability) and your mechanical speed based on the electrical characteristics of the motor.

    Mechanical Speed = Electrical Speed * 120 / poles