| 摘要 |
PROBLEM TO BE SOLVED: To make it possible to reduce a required number of power switching elements of power amplifiers, by connecting the output terminals of a plurality of power amplifiers to one of terminals of corresponding windings, and other terminals of the windings to common connections. SOLUTION: Slots corresponding to 12 magnetic poles are provided on inner peripheral surface of a stator 10, and 12 independent single-pole windings #1 to #12 are provided. And one side terminals of these 12 single-pole windings #1 to #12 are respectively connected to a common neutral point 16. On the other hand, other terminals of the single-pole windings #1 to #12 are connected to the output terminals of the power amplifiers B1 to B12 of a controller. That is, one power line from each of single-pole windings #1 to #12 is connected to the output terminals of the power amplifiers B1 to B12. By doing this, the required number of power switching elements of the power amplifiers B1 to B12 can be reduced. |
