Because of induction of the windings, power requirements, and temperature management some glue circuitry is necessary between digital controller and motor.BLDC motor  s offer several advantages over brushed DC motor  s, including higher efficiency and reliability, reduced noise, longer lifetime (no brush erosion), elimination of ionizing sparks from the commutator, and overall reduction of electromagnetic interference (EMI). The maximum power that can be applied to a BLDC motor   is exceptionally high, limited almost exclusively by heat, which can damage the magnets. BLDC's main disadvantage is higher cost, which arises from two issues. First, BLDC motor  s require complex electronic speed controllers to run. Brushed DC motor  s can be regulated by a comparatively trivial variable resistor (potentiometer or rheostat), which is inefficient but also satisfactory for cost-sensitive applications. Second, many practical uses have not been well developed in the commercial sector. For example, in the RC hobby scene, even commercial brushless motors are often hand-wound while brushed motors use armature coils which can be inexpensively machine-wound.

BLDC motor  s are considered to be more efficient than brushed DC motor  s. This means that for the same input power, a BLDC motor   will convert more electrical power into mechanical power than a brushed motor, mostly due to the absence of friction of brushes. The enhanced efficiency is greatest in the no-load and low-load region of the motor's performance curve. Under high mechanical loads, BLDC motor  s and high-quality brushed motors are comparable in efficiency.