| 摘要 |
PURPOSE: To provide a two-phase brushless motor, which can achieve the compact configuration, the cost reduction and the reliability, by reducing the constituent parts. CONSTITUTION: A rotor 1 has a permanent magnet. A position-signal generating means 2 generates the position signal corresponding to the rotation of the rotor 1. A conduction control means 4 outputs the conduction control signal in correspondence with the conduction control signal. A driving means 7 outputs the driving current in correspondence with the conduction control signal. An armature coil 3 flows the driving current and has a first coil group L1 and a second coil group L2 for generating the field magnetic field. In this two-phase brushless motor having the above described parts, the first coil group L1 and the second coil group L2 are mutually connected in series. The driving means 7 has three sets of push-pull output terminals, which output the driving currents. The first output terminal is connected to one end of the first coil group L1, the second output terminal is connected to one end of the second coil group L2 and the third output terminal is connected to the other end of the first coil group L1 and the other end of the second coil group L2, respectively. |
