Speed control of variable-speed multiple-phase motors
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United States of America Patent
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Dec 15, 2015
Grant Date -
Aug 29, 2013
app pub date -
Jul 13, 2012
filing date -
Feb 29, 2012
priority date (Note) -
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Abstract
Exemplary embodiments or implementations are disclosed of methods, apparatus, and systems for operating motors in variable speed situations. In an exemplary implementation, a method of controlling a variable-speed motor includes defining a control duration as a predetermined number of cycles of a multiple-phase power supply. Each speed in a range of speeds is defined by a corresponding number of the cycles of the control duration. Power is provided to the motor from the power supply at a selected one of the speeds, by enabling input from the power supply for the number of the cycles of the control duration corresponding to the selected speed.
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