Motor control circuit, motor control system and motor control method
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United States of America Patent
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Jul 14, 2015
Grant Date -
Mar 28, 2013
app pub date -
Mar 14, 2012
filing date -
Sep 22, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
According to an embodiment, a motor control circuit includes a rotational position decoding unit, a rotational position determining unit, and a motor drive signal generating unit. The rotational position decoding unit is configured to generate a rotational position signal representing a rotational position of a motor according to a sensor signal provided by a sensor. The rotational position determining unit is configured to store a current rotational position of the motor based on the rotational position signal. When the rotational position signal represents a subsequent rotational position of the stored current rotational position, the rotational position determining unit is configured to update the stored current rotational position with the subsequent rotational position, and generate a motor control signal representing the subsequent rotational position. The motor drive signal generating unit is configured to generate a motor drive signal for driving the motor according to the motor control signal.
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