SINGLE-PHASE INDUCTOR MOTOR Russian patent published in 1997 - IPC

FIELD: electric motors for domestic appliances, such as washing machines, refrigerator compressors. SUBSTANCE: motor has unwound rotor 10 and stator 1 with main poles 2,3 and commutating poles 4,5, windings 6-9, control unit with rotor position detector and DC power supply connected through selector switches to main winding. Commutating-winding coils 8,9 are series- connected to additional switch; gate electrodes of selector switches are coupled with control unit affording short-time connection of commutating winding for starting period to set rotor in starting position due to developed locked-rotor torque and further connection of main winding depending on signals coming from rotor position detector. EFFECT: increased locked-rotor torque and improved reliability of motor starting. 7 cl, 2 dwg