MOTOR CONTROL APPARATUS FOR SENSORLESS MOTOR, AND IMAGE FORMING APPARATUS
First Claim
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1. A motor control apparatus comprising:
- a supply unit configured to supply a current for excitation to a plurality of coils of a motor;
a first detection unit configured to detect a physical quantity which varies depending on a change in inductance of at least one of the plurality of coils;
a determination unit configured to determine a rotational position of a rotor of the motor based on the physical quantity detected by the first detection unit; and
a control unit configured to control the rotational position of the rotor of the motor based on a determination result by the determination unit.
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Abstract
A motor control apparatus includes: a supply unit configured to supply a current for excitation to a plurality of coils of a motor; a first detection unit configured to detect a physical quantity which varies depending on a change in inductance of at least one of the plurality of coils; a determination unit configured to determine a rotational position of a rotor of the motor based on the physical quantity detected by the first detection unit; and a control unit configured to control the rotational position of the rotor of the motor based on a determination result by the determination unit.
45 Citations
18 Claims
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1. A motor control apparatus comprising:
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a supply unit configured to supply a current for excitation to a plurality of coils of a motor; a first detection unit configured to detect a physical quantity which varies depending on a change in inductance of at least one of the plurality of coils; a determination unit configured to determine a rotational position of a rotor of the motor based on the physical quantity detected by the first detection unit; and a control unit configured to control the rotational position of the rotor of the motor based on a determination result by the determination unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17)
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16. A motor control apparatus comprising:
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a supply unit configured to supply a current to an excitation phase of a motor; a first detection unit configured to detect a physical quantity which varies depending on a change in inductance of a coil included in the excitation phase of the motor; a determination unit configured to determine a rotational position of a rotor of the motor based on the physical quantity detected by the first detection unit; and a control unit configured to control the rotational position of the rotor of the motor based on a determination result by the determination unit. - View Dependent Claims (18)
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Specification