– Universal motor: it is built to operate with both direct current and alternating current. The universal motor is used at low power, 3 hp 182T motor and its greatest application was in the first electric trains, which had to travel long distances and in lines that did not always have the same power system.
– Linear Motor: This alternating current motor, instead of producing a torque and causing rotation, is made so that the magnetic force is linear. It is finding more and more frequent uses in maglev trains, that float on a magnetic field and travel at very high speeds.
– Step Motor: In it, the stator has poles that are energized one at a time, and the rotor is made in a sprocket shape. With each energization of one pole of the stator, the adjacent tooth is drawn, and with this, we have the precise control of the rotation of the motor.
– Servomotor: it is a motor more precise than the step motor, it is usually a DC motor, equipped with an electronic controller that will control the rotation of its axis with extreme precision, correcting errors and eventual deviations that happen. It is very applied in control systems and fine manufacturing.