Patent ID: 7230356

Claim:
A brushless synchronous motor comprising: a stator including a stator core having a plurality of stator teeth, a plurality of phase coils wound around said stator teeth; a rotor disposed opposite said stator; an encoder for detecting a rotation angle of said rotor, said encoder including a permanent magnet fixed to said rotor to rotate together, a magnetic sensor and a circuit board fixed to said stator; a power supply means for supplying electric power to said phase coils; a control means for controlling said power supply means to change power supply to one of said phase coils from another based on the rotation angle of said rotor; wherein: said circuit board includes a wiring circuit that connects said phase coils with said power supply means; and said magnetic sensor is directly fixed to said circuit board, further comprising a resinous member, a plurality of stator terminals that connect said wiring circuit with said power supply means and a plurality of sensor terminals that connects said magnetic sensor with said control means, wherein: said circuit board has a plurality of insertion holes in which said stator terminals are inserted to connect with said patterned circuit.