Brush less Direct Current (BLDC) / AC SERVO motors are rapidly gaining popularity. BLDC motors are used in industries such as Appliances, Automotive, Aerospace, Consumer goods, Medical, Industrial Automation Equipment and Instrumentation. As the name implies, BLDC motors do not use brushes for commutation, instead, they are electronically commutated. BLDC / AC SERVO MOTORS have many advantages over brushed DC motors and induction motors.

A few of these are

Better speed versus torque characteristics
Higher dynamics response
Higher efficiency
Long operating life
Noiseless operation
Higher speed ranges

In addition, the ratio of torque delivered to the size of the motor is higher, making it useful in applications, where space and weight are critical factors.