Brushless DC motors (BLDC) are meant for SPEED. They can get to high RPM quickly and reliably, which is why they are used in drones, mills and cooling fans. They also can provide a good amount of torque, which is why they're also used in e-bikes. They have a common ancestry with steppers, which means we already somewhat know how to control them.
PROS
- $$ - price keeps coming down thanks to hobby drones. Larger e-bike motors are getting mass produced as well
- Can turn really quickly, especially at low-end acceleration
- Control is straight forward, especially with hobby Electronic Speed Controllers (ESC)
- Can be made lightweight
CONS
- Not good for fixed-positioning
- Sensored type are closed-loop and therefore need more electronics
- Current hog
Discussions
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