FIELD: electricity.
SUBSTANCE: control circuit (1), which control a synchronous motor (M) with permanent magnets used for driving a drum in washing machines, contains a converter (2), which converts the voltage of AC mains into DC voltage, three-phase inverter (3), which inverts direct current from the transformer (2), into three-phase current (Ia, Ib, Ic), velocity and position assessment unit (4), which determines values, related to the position and velocity of the rotor, using voltage sensors during start and operation of the motor (M), and microcontroller (5), which ensures control of the motor (M) at the expense of sending the sine switching signals into the three-phase inverter (3) with the signals received from the velocity and position assessment unit (4).
EFFECT: reducing power consumption.
8 cl, 3 dwg
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