DOMESTIC APPLIANCE, IN PARTICULAR CLOTHES DRYER, HAVING A BRUSHLESS DIRECT-CURRENT MOTOR AND METHOD FOR OPERATING A BRUSHLESS DIRECT-CURRENT MOTOR IN A DOMESTIC APPLIANCE

摘要

The invention relates to a domestic appliance (1), comprising: a drive motor (4) designed as a brushless direct-current motor for driving a component (2); an inverter (5) for controlling the drive motor (4), wherein the inverter (5) comprises a motor control unit (7) for controlling the rotational speed (n) of the drive motor (4) and can be operated in at least two operating modes (M1, M2), which differ from each other with regard to the control of the rotational speed (n); an intermediate electrical circuit (13) having an electrical energy store (8) for providing a supply voltage (UV) for the motor control unit (7); and a control device (18), which couples the energy store (8) to a voltage source (15) and disconnects the energy store from said voltage source. The motor control unit (7) can detect the disconnection of the energy store (8) from and the coupling of the energy store (8) to the voltage source (15) and, after detecting the coupling, can select one of the operating modes (M1, M2), depending on whether the coupling occurs within or after the expiration of a specified time interval (PZ) after the disconnection.