| 摘要 |
A control device for an electric motor (10), in particular a brushless single-phase synchronous motor with permanent magnets, the motor comprising an induced circuit (20) and an inductor circuit (30) having a core (31), a primary magnetic flux (cp) passing through the core (31), the flux generated by an energising current (100). The control device (1) comprises an electromagnetic element (2) designed to be linked to the magnetic flux (cp). A detector circuit (40) is used for reading a paramater (3) characteristic of the electromagnetic element (2), and supplying at output the BEMF (110) induced in the electromagnetic element (2). This reading is taken when the electromagnetic element (2) is connected to the primary magnetic flux (cp). A controller (60) is designed to regulate the energising current (100) according to the BEM F. |
