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Brushless DC Motor (BLDC)

A brushless DC motor uses electronic commutation instead of mechanical commutation to generate a rotating magnetic field. It has an inrunner or outrunner design and generates electromotive force through three phases powered by an electronic speed controller using pulse-width modulation signals. Stepper motors are also discussed, including variable reluctance and hybrid stepper types that use windings and teeth on the rotor and stator to rotate in discrete steps controlled by the motor driver signals.

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potnuru Jaivanth
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91 views30 pages

Brushless DC Motor (BLDC)

A brushless DC motor uses electronic commutation instead of mechanical commutation to generate a rotating magnetic field. It has an inrunner or outrunner design and generates electromotive force through three phases powered by an electronic speed controller using pulse-width modulation signals. Stepper motors are also discussed, including variable reluctance and hybrid stepper types that use windings and teeth on the rotor and stator to rotate in discrete steps controlled by the motor driver signals.

Uploaded by

potnuru Jaivanth
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Brushless DC Motor (BLDC)

Brushless DC motor (BLDC)


Inrunner and Outrunner Motors
DC Motor BLDC Motor
EMF Generated
1.5

0.5

0
0 30 60 90 120 150 180 210 240 270 300 330 360 390
-0.5 ωt

-1

-1.5
Controlling BLDCs
Switching circuit for three-phase pulse generation
Electronic Speed Controller
• PWM motor control signals
Stepper Motors
Variable reluctance (VR) stepper
Where Nw is number of windings in the stator and the Nt is
number of teeth on the rotor
Hybrid stepper motors

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