Electric motor for e.g. driving blower, has rotor position sensors that are arranged at distance in printed circuit board for producing sinusoidal signals, and signal generator produces pulsed signal for sinusoidal signals

摘要

The motor has a stator, and a rotor (14) that rotates about a rotation axis. Two analog rotor position sensors are produced for producing rotor position signals that characterize magnetic field density of magnetic flux acting on the sensors. The sensors are arranged at a distance in a printed circuit board (468) for producing sinusoidal signals. A signal generator produces a pulsed signal for the sinusoidal signals.