| 摘要 |
PROBLEM TO BE SOLVED: To provide an AC servomotor which can reduce switching noise of a power device controlled in PWM and decrease the capacitance of a capacitor for switching noise suppression. SOLUTION: The AC servomotor which comprises a stator 2 which has a three-phase stator coil 5 to generate a rotating magnetic field on the inner circumference surface of a stator core 4, and several permanent magnets 10 installed on the outer circumference surface of a rotor core 9 and has a rotor 3 which is placed in order to face the stator coil 5 with a spacing, a common- mode choke is constituted by winding a lead wire 5a of each phase of the stators coil 5 several turns around the yoke part 4a of the stator core 4. |
