| 摘要 |
A motor driving device includes (a) a wide-angle feeding device (1) for feeding power to three-phase coils (11, 13, 15) in a width of 150 degrees in electrical angles and (b) a feeding amount controller (2) for controlling a feeding amount to the coils (11, 13, 15). During overlapping periods, in which adjacent coils out of the coils (11, 13, 15) are in the same fed condition, an amount of a first value is fed to the coils (11, 13, 15) and an amount of a second value is fed during the periods other than the overlapping periods. This structure allows the motor to reduce torque ripples, vibrations as well as noises during its operation, and at the same time, the motor can produce a greater output and operate at higher efficiency.
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