| 摘要 |
The invention concerns a device for controlling (20) an electric motor (1) comprising a rotor (6) and at least three stator coils (2, 3, 4) connected between three binding posts, means (5) for supplying to said binding posts three control signals (Ua, Ub, Uc), and means (22) for detecting said rotor angular position. Said detecting means comprise measuring means (24) designed to be connected to the motor, such that the means form with said stator coils at least two oscillating circuits supplying two respective signals (U1, U2) at two measurement frequencies respectively which are themselves periodic functions of said rotor angular position, and means (26) for calculating a single value corresponding to the two measurement frequencies, said value being the desired angular position. |
