Motor controller, motor driver, and motor driving system
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United States of America Patent
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Nov 20, 2018
Grant Date -
Jan 11, 2018
app pub date -
Jun 29, 2017
filing date -
Jul 8, 2016
priority date (Note) -
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Abstract
A novel motor controller controls a stepping motor and includes a command value calculator to calculate and output a speed command value and an angle command value based on a reference clock. A control method selector is included to select one of the open-loop control and the closed-loop control in accordance with the speed command value. A command value output unit is included to output a first target value as the first current command value when the open-loop control is selected and outputs a second target value as the second current command value when the closed-loop control is selected. The motor controller controls the stepping motor based on the first target value when the open-loop control is selected and the second target value when the closed-loop control is selected.
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