Actuator controller, control method therefor, and storage medium storing control program therefor
AssigneeCanon Kabushiki Kaisha
InventorNobuyuki Furukawa
Life of this patent
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Abstract
An actuator controller that is capable of drivingly controlling an actuator, such as a motor, with a sufficient accuracy in spite of a simple configuration while preventing an incorrect detection of switching of a magnetic pole. The actuator controller drivingly controls an actuator having a driving element and a stator. A driver supplies an electric current to a coil provided in the stator so as to drive the driving element. A sensor detects a magnetic field of the driving element so as to detect a position of the driving element. A processor exclusively controls a timing at which the sensor detects the magnetic field and a timing at which the driver supplies the electric current to the coil.
Claims9
An actuator controller that drivingly controls an actuator having a driving element and a stator, the actuator controller comprising:
- a driver that supplies an electric current to a coil provided in the stator so as to drive the driving element;
- a sensor that detects a magnetic field of the driving element so as to detect a position of the driving element;
- and
- a processor that exclusively controls a timing at which the sensor detects the magnetic field and a timing at which the driver supplies the electric current to the coil.
A control method for an actuator controller that drivingly controls an actuator having a driving element and a stator, the control method comprising:
- supplying electric current to a coil provided in the stator so as to drive the driving element;
- detecting a magnetic field of the driving element with a sensor so as to detect a position of the driving element;
- and
- exclusively controlling a timing at which the sensor detects the magnetic field and a timing at which the electric current is supplied to the coil.
A non-transitory computer-readable storage medium storing a control program causing a computer to execute a control method for an actuator controller that drivingly controls an actuator having a driving element and a stator, the control method comprising:
- supplying electric current to a coil provided in the stator so as to drive the driving element;
- detecting a magnetic field of the driving element with a sensor so as to detect a position of the driving element;
- and
- exclusively controlling a timing at which the sensor detects the magnetic field and a timing at which the electric current is supplied to the coil.
Dependencies are inferred from the claim text.