Motor controller and motor control method
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United States of America Patent
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-
Mar 7, 2017
Grant Date -
Jul 2, 2015
app pub date -
Mar 13, 2015
filing date -
Mar 12, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A motor controller receiving as input an encoder signal changing in response to a driving position of a motor, outputting a motor driving command in response to the encoder signal to control at least one of the driving position or a driving velocity of the motor, includes an interrupt processing section to execute interrupt operations every prescribed interrupt cycle, a low-frequency processing section to selectively execute a subset of the interrupt operations every prescribed number of the interrupt cycles, and a high-frequency processing section to execute another subset of the interrupt operations every prescribed interrupt cycle, wherein the high-frequency processing section executes at least an operation to detect the driving position indicated by the encoder signal, wherein the low-frequency processing section executes at least an operation to generate the motor driving command.
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