Electronically-commutated motor

摘要

An electronically commutated motor contains a rotor position determination, which detects a surface at which the rotor and stator poles (10 through 15; 17 through 20) diametrically oppose one another. The total surface is taken into consideration in the position determination. The pole angles (betaS, betaR) of the stator and rotor poles (10 through 15; 17 through 20) are each set to values at which a rotor rotation results in a surface change.