SINGLE-PHASE PERMANENT MAGNET MOTOR

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PROBLEM TO BE SOLVED : To improve the efficiency and an output of a single-phase permanent magnet motor in compliance with a specification required for the inexpensive and compact motor. SOLUTION : The single-phase permanent magnet motor employs a rare earth sintered magnetic field magnet 3 with the conductivity of 1.0×105 or less, and drastically reduces an eddy current loss. A motor structure uses a dust core as a stator core 2, and has a high resistance. The efficiency and the output of the single-phase motor driven at high frequency can be improved. COPYRIGHT : (C)2007, JPO&INPIT