| 摘要 |
An improved current supply apparatus for the power windings of a synchronous machine wherein a first center tap of a first power winding is connected to one side of a current source and a second center tap of a second power winding is connected to the other side of the current source. The respective ends of the power windings are connected by thyristors that are ignited at times determined by the angular position of a rotor of the synchronous machine. Each thyristor is ignited to conduct current during one-fourth of a power supply cycle to generate an output current of changing polarity that is applied to the power windings to drive the synchronous machine.
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