DEVICE AND METHOD FOR THE DETECTION OF THE ROTOR POSITION AT LOW ROTATIONAL SPEEDS OR AT A STANDSTILL

摘要

The invention relates to a circuit arrangement and a method for determining the rotor position when the rotor rotates slowly or is at a standstill. According to the invention, an RF signal is fed at the neutral point (zero component), and the rotor position is determined using the distribution of the RF signal in the coils (non-zero component).