Patent ID: 7839033

Claim:
A brushless DC motor comprising: a rotor portion rotatable about a center axis and including a magnet; a stationary portion including an armature facing the magnet, the armature including a wire wound around a stator core; a bearing rotatably supporting the rotor portion relative to the stationary portion; a base portion; a circuit board connected to and facing the armature; a rotation control portion provided on the circuit board and including a non-volatile rewritable memory arranged to control rotation of the rotor portion based on data stored in the non-volatile rewritable memory; a driving circuit provided on the circuit board and arranged to provide driving current controlled by the rotation control portion; and a writing terminal port provided on the circuit board and arranged to be detachably connected to an external memory writer; wherein the circuit board is axially arranged between the armature and the base portion; and the writing terminal port is arranged on a side of the circuit board facing the armature, and the writing terminal port is arranged radially outward relative to an outer side of the armature.