| 摘要 |
An electrical machine (10) suitable for use as a starter/alternator for an automotive vehicle, has an inverter circuit (12), a rectifier circuit (14), and a stator circuit (16) that couples the inverter circuit (12) to the rectifier circuit (14). In addition, a switch circuit (18) having a first switch, switch A, and a second switch, switch B, is used to couple inverter circuit (12) to rectifier circuit (14). By controlling the operation of switch circuit (18) so that in a start up mode the switches are closed and in a generating mode the switches are open, a high output torque may be obtained from the electrical machine while a wide operating speed range may be also achieved.
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