Abstract: The yarn-feeder comprises a reel (R) having loops of yarn wound thereon and driven by a permanent-magnet, synchronous brushless motor to draw the yarn from a spool (RO) and to feed it to a textile machine arranged downstream (MF). The motor (M, M?) comprises a stator (STA, STA?) consisting of a substantially cylindrical, hollow housing having at least three elongated pole shoes (E1-E3, E1?-E3?) having respective excitation coils wound thereon (A, B, C, A?, B?, C?), and a rotor comprising a magnetic member having a circular profile with alternating poles, which is coaxially supported on the driving shaft (AM, AM?) near the coils.