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What Is The Difference Between Brushless And Brushed?
- Dec 14, 2018 -

The difference between a brush motor and a brushless motor is whether or not a conventional brush-commutator is provided. The commutation of a brushed DC motor has always been achieved by contacting the graphite brush with an annular commutator mounted on the rotor. The brushless motor feeds back the rotor position back to the control circuit through the Hall sensor, so that it can know the exact time of the motor phase commutation. Most motors produced by brushless motor manufacturers have three Hall effect positioning sensors. Since the brushless motor does not have a brush, there is no relevant interface, so it is cleaner and has less noise. In fact, it requires no maintenance and has a longer life.