The BLDC motors bring a higher energy density, higher energy efficiency and a much longer life time compared to an equivalent DC motor.
In comparison to a DC motor, a BLDC motor has no mechanical brushes to do the motor commutation.
Moreover, the ratio of torque delivered relative to the motor’s size is higher, making it a good choice for applications such as washing machines and EVs, where high power is needed but compactness and lightness are critical factors.
(However, it should be noted that brush-type DC motors do have a higher starting torque.) A BLDC motor is known as a “synchronous” type because the magnetic field generated by the stator and the rotor revolve at the same frequency.
MLX81200 and MLX81201 are the 1st members of a 3 phase BLDC single chip controller family, that are consequently using Melexis Tru Sense.
A single IC connected to a LIN or PWM interface with only a few external components is able to control a BLDC motor of the mentioned applications in the range from 10W…1500W.
The brushless DC (BLDC) motor is becoming increasingly popular in sectors such as automotive (particularly electric vehicles (EV)), HVAC, white goods and industrial because it does away with the mechanical commutator used in traditional motors, replacing it with an electronic device that improves the reliability and durability of the unit.