The term EC motor (electronically commutated) refers to its working principle and is another name for a brushless DC motor. An EC motor is structured like a three-phase synchronous machine with excitation through permanent magnets. Due to the brushless design, this type of motor is particularly well-suited for applications that require a long service life, such as in medical technology or robotics.
Unlike a brushed DC motor, an EC motor requires additional electronics for detecting the current rotor position and generating the necessary rotating field. Depending on the field and purpose of the application, EC motor controls include, for example, speed controllers (2-quadrant operation) for speed control or motion controllers (4-quadrant operation) for positioning.
EC motors are available in various designs. In addition to the internal rotor motors, there are also external rotor motors (FAULHABER BXT) and flat rotor motors (FAULHABER B-Flat). The winding is usually designed as a three-phase system and, depending on the speed range, with low to very high number of poles.
Another type of EC motor offered by FAULHABER are motors with integrated electronics that are specially matched to the motor and combine the entire drive system within a single housing. This makes them particularly suitable for applications with very limited space.
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