Method and apparatus for brushless DC motor control
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United States of America Patent
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Feb 9, 2016
Grant Date -
Apr 23, 2015
app pub date -
Oct 17, 2013
filing date -
Oct 17, 2013
priority date (Note) -
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Abstract
In one aspect of the teachings herein, an interface circuit obviates the need for a microcontroller with multi-channel PWM capability in the context of controlling a brushless, three-phase DC motor. Instead, the interface circuit generates the requisite set of motor-phase control signals using a single PWM channel from the microcontroller. The interface circuit is implemented as a standalone integrated circuit (IC) in one embodiment, and is integrated into a pre-driver circuit in another embodiment.
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