A PM brushless motor comprising: - a rotor carrying a plurality of surface mounted magnets; - a stator formed by a laminations stack and with partially closed slots, that define a circumferential air gap with said rotor, said stator housing polyphase windings distributed in the slots formed in said stator; and - inductive elements to modify the parasitic inductance of the motor; each of said slots comprising a partially closed portion or bottleneck, which has a width smaller than that of the remaining slot and located in a radially inner position in respect of said winding and extending up to said circumferential air gap between stator and rotor, and housing an inductive element as long as said armature lamination stack of the motor; said inductive element being located inside the stator slot between said polyphase winding and said partially closed portion and comprises an elongated member or rod of a material with ferromagnetic properties; the brushless motor being characterized in that said material has low specific losses at high frequency, which is comprised between 2 kHz and 16 kHz, and in that an insulating wrapping surrounds said elongated member or rod for insulating it from said stator stack, with the thickness of said insulating wrapping further acting as a spacer, said elongated member or rod including a stack of silicon steel laminations joined together through connection, interlocking, gluing or clinching to form a substantially parallelepiped element with the laminations stacked parallel to said air gap, the width of the lamination stack being smaller than that of said slots so as to form side air gaps (9, 10). - a rotor carrying a plurality of surface mounted magnets; - a stator formed by a laminations stack and with partially closed slots, that define a circumferential air gap with said rotor, said stator housing polyphase windings distributed in the slots formed in said stator; and - inductive elements to modify the parasitic inductance of the motor; each of said slots comprising a partially closed portion or bottleneck, which has a width smaller than that of the remaining slot and located in a radially inner position in respect of said winding and extending up to said circumferential air gap between stator and rotor, and housing an inductive element as long as said armature lamination stack of the motor; said inductive element being located inside the stator slot between said polyphase winding and said partially closed portion and comprises an elongated member or rod of a material with ferromagnetic properties; the brushless motor being characterized in that said material has low specific losses at high frequency, which is comprised between 2 kHz and 16 kHz, and in that an insulating wrapping surrounds said elongated member or rod for insulating it from said stator stack, with the thickness of said insulating wrapping further acting as a spacer, said elongated member or rod including a stack of silicon steel laminations joined together through connection, interlocking, gluing or clinching to form a substantially parallelepiped element with the laminations stacked parallel to said air gap, the width of the lamination stack being smaller than that of said slots so as to form side air gaps (9, 10).