Brushed DC Motor vs Brushless : Key Differences
Both brush and brushless motors are DC motor types that use the interplay of magnetic fields to transform electrical energy into mechanical energy.
Choosing between brushed and brushless DC motors? We've got you covered. Read out expert guides for smart, efficient decisions in your next project!
Brushed Dc Motor vs Brushless
Communication:
Brushes are used in brushed DC motors to mechanically communicate current to the motor windings. In contrast, a brushless motor delivers current via electrical communication.
Motor Structure:
Brushed DC motor the rotor is the electromagnet, and the stator is the permanent magnet, While in Brushless Motor the rotor is the permanent magnet, and the stator has the electromagnets.
Life:
Life is Short in a brushed DC motor, while Life is long in a brushless DC motor.
Efficiency:
Efficiency is more moderate in Brushed DC Motor, while efficiency is high in a brushless DC Motor.
Noise:
Noise is louder in Brushed DC motors, While Noise is quieter and smoother in Brushless DC motors.
Control Requirement:
No controller is required in a brushed DC motor, While a controller is always required to keep the motor running in brushless.
Maintenance:
Maintenance is regular because brushes and commutators need replacement, while brushless is virtually maintenance-free.
Speed Range:
In Brushed DC motors, the speed range is lower compared to BLDC, while in brushless DC motor Speed range is high because of the absence of brushes and a commutator.
Rotor Inertia:
In Brushed DC Motor Rotor inertia is higher, which limits dynamic characteristics, While in Brushless DC motor, rotor inertia is low because it has a permanent magnet in the rotor. It increases dynamic response.