| 摘要 |
A motor control system for a multi-speed electric motor electrically excited by a power source having at least two terminals. The motor controller system includes a switching device electrically connected to the terminals of the power source for alternating current flow from the power source, a first speed circuit, and a second speed circuit. The first speed circuit includes a first speed primary winding electrically connected to the switching device, a first speed secondary winding electrically connected to the first speed primary winding, a start capacitor electrically connected to the first speed secondary winding, and start relay electrically connected to the start capacitor. The second speed circuit includes a second speed primary winding which is connected to the switching device.
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