DC Brushless Fans

DC Brushless Fans

Brushless DC electric motor (BLDC motors, BL motors) also known as electronically commutated motors (ECMs, EC motors), or synchronous DC motors, are synchronous motors powered by DC electricity via an inverter or switching power supply which produces an AC electric current to drive each phase of the motor via a closed loop controller. The controller provides pulses of current to the motor windings that control the speed and torque of the motor

The construction of a brushless motor system is typically like a permanent magnet synchronous motor (PMSM), but can also be a switched reluctance motor, or an induction (asynchronous) motor

The advantages of a brushless motor over brushed motors are high power to weight ratio, high speed, low maintenance, safe for use in explosive environments, and electronic control. Brushless motors find applications in such places as computer peripherals (disk drives, printers), hand-held power tools, vehicles ranging from model aircraft to automobiles, and now for marine engine room ventilation

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