![]() ![]() All brushless DC motors require a companion drive electronics package, unless the drive is built into the motor as is the case with Allied Motion’s EnduraMax family of brushless DC motors.Īpplication examples: Brushless DC motors are a great choice for powering pumps, fans and blowers, compressors and other similar commercial or industrial applications where long life, no maintenance, compact size and electrical efficiency are important in the design. ![]() Generally, motors you find on websites and in advertisements that are referred to as Brushless DC Motors are intended primarily for general-duty commercial and industrial applications, especially for those applications where you don’t want or need to accurately control the speed of the motor or its position. As a result, brushless motors are essentially maintenance-free, generate low-EMI (electrical noise), can operate at higher voltages, are more efficient and can be made more compact than brush motors rated for similar output power. What’s more, there is no wear over time and no replacement of brushes or commutators, and no sparking at the brush-commutator interface. ![]() The electronic switching of currents to the coils of the BLDC motor is more efficient than the mechanical switching of the DC motor. The process is mechanical in that the brushes physically slide on a commutator to effect the switching among the coils of the motor.īrushless motors, on the other hand, rely upon electronics to accomplish the commutation task. The difference between brushed DC and brushless DC technology is (surprise!) that brushless motors do not use brushes.īrushes are used in DC motors in the commutation process to switch current from coil-to-coil in order to develop torque to spin the rotor and attached load. Brushless Motors: What’s the Big Difference?Īre you considering a brushless motor for your application? Are you confused by the offerings of “brushless DC motor,” “brushless servo motor,” and “brushless torque motor”? If so, then read on for an explanation of what we mean by these terms and help with choosing the right type.īrushless DC (BLDC) technology has been around in one form or another for several decades. ![]()
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