Motor driving method
AssigneeSemiconductor Components Industries, LLC
InventorsFumio KUMAZAWA, Takashi OGAWA
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Abstract
According to at least some embodiments, a method for driving a motor includes, upon a restart of the motor, determining whether the rotor is rotating based on a signal generated from outputs of at most one Hall sensor. The method further includes, if it is determined that the rotor is rotating, determining a plurality of output duty values for driving a plurality of windings of the motor. The method further includes generating a drive signal for driving the motor based on the determined plurality of output duty values.
Claims20
A method for driving a motor including a rotor, the method comprising:
- upon a restart of the motor, determining whether the rotor is rotating based on a signal generated from outputs of at most one Hall sensor;
- if it is determined that the rotor is rotating, determining a plurality of output duty values for driving a plurality of windings of the motor;
- and
- generating a drive signal for driving the motor based on the determined plurality of output duty values.
A system for driving a motor including a rotor, the system comprising:
- a drive circuit that:
- upon a restart of the motor, determines whether the rotor is rotating based on a signal generated from outputs of at most one Hall sensor;
- if it is determined that the rotor is rotating, determines a plurality of output duty values for driving a plurality of windings of the motor;
- and
- generates a drive signal for driving the motor based on the determined plurality of output duty values.
Dependencies are inferred from the claim text.