Controlling apparatus for linear oscillation motor and method for controlling linear oscillation motor
First Claim
1. A controlling apparatus for controlling a linear oscillation motor having a movable element and a stator one of which comprises an electromagnet with a winding, the controlling apparatus comprising:
- a sensor configured to detect movement of the movable element; and
a controller configured to intermittently supply electric power to the winding of the electromagnet to move the movable element reciprocally and linearly, the controller being configured to begin each intermittent supply of electric power to the winding at a timing before a dead center of the movable element based on an output of the sensor.
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Accused Products
Abstract
A controlling apparatus for controlling a linear oscillation motor includes a sensor and a controller. The motor has a movable element and a stator one of which includes an electromagnet with a winding. The sensor is configured to detect movement of the movable element. The controller is configured to intermittently supply electric power to the winding of the electromagnet to move the movable element reciprocally and linearly. The controller is configured to begin each intermittent supply of electric power to the winding at a timing before a dead center of the movable element based on an output of the sensor.
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Citations
28 Claims
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1. A controlling apparatus for controlling a linear oscillation motor having a movable element and a stator one of which comprises an electromagnet with a winding, the controlling apparatus comprising:
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a sensor configured to detect movement of the movable element; and
a controller configured to intermittently supply electric power to the winding of the electromagnet to move the movable element reciprocally and linearly, the controller being configured to begin each intermittent supply of electric power to the winding at a timing before a dead center of the movable element based on an output of the sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A linear oscillation motor comprising:
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a movable element;
a stator, one of the movable element and the stator comprising an electromagnet with a winding;
a sensor configured to detect movement of the movable element; and
a controller configured to intermittently supply electric power to the winding of the electromagnet to move the movable element reciprocally and linearly, the controller being configured to begin each intermittent supply of electric power to the winding at a timing before a dead center of the movable element based on an output of the sensor.
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24. A linear oscillation motor comprising:
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a rotor;
a stator, one of the rotor and the stator comprising an electromagnet with a winding;
a sensor configured to detect movement of the movable element;
a controller configured to intermittently supply electric power to the winding of the electromagnet to rotate the rotor periodically changing a rotational direction of the rotor, the controller being configured to begin each intermittent supply of electric power to the winding at a timing before a dead center at which the rotor changes its rotational direction; and
an oscillatory element configured to be moved reciprocally and linearly by rotation of the rotor.
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25. A method for controlling a linear oscillation motor having a movable element and a stator one of which comprises an electromagnet with a winding, the method comprising:
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detecting movement of the movable element;
supplying electric power intermittently to the winding of the electromagnet to move the movable element reciprocally and linearly; and
beginning each intermittent supply of electric power to the winding at a timing before a dead center of the movable element based on an output of the sensor.
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26. A controlling apparatus for controlling a linear oscillation motor having a movable element and a stator one of which comprises an electromagnet with a winding, the controlling apparatus comprising:
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sensor means for detecting movement of the movable element; and
controlling means for intermittently supplying electric power to the winding of the electromagnet to move the movable element reciprocally and linearly, the controlling means beginning each intermittent supply of electric power to the winding at a timing before a dead center of the movable element based on an output of the sensor means.
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27. A linear oscillation motor comprising:
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a movable element;
a stator, one of the movable element and the stator comprising an electromagnet with a winding;
sensor means for detecting movement of the movable element; and
controlling means for intermittently supplying electric power to the winding of the electromagnet to move the movable element reciprocally and linearly, the controlling means beginning each intermittent supply of electric power to the winding at a timing before a dead center of the movable element based on an output of the sensor means.
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28. A linear oscillation motor comprising:
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a rotor;
a stator, one of the rotor and the stator comprising an electromagnet with a winding;
sensor means for detecting movement of the rotor;
controlling means for intermittently supplying electric power to the winding of the electromagnet to rotate the rotor periodically changing a rotational direction of the rotor, the controller being configured to begin each intermittent supply of electric power to the winding at a timing before a dead center at which the rotor changes its rotational direction; and
oscillatory means for being moved reciprocally and linearly by rotation of the rotor.
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Specification