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US 2008/0174900 A1Published application
High-order hybrid actuator controller
AssigneeMaxtor Corporation
InventorsMirmehdi L. Abrishamchian, Travis Hein, Jihao Luo
Life of this patent
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Abstract
A method of providing a control output by selecting a controller to an actuator is discussed. A first controller having an estimator-compensator architecture is selected if the actuator is in a settle stage. A second controller having an architecture other than that of the first controller is selected when the actuator is in a track follow stage. The control output is provided from the selected controller to the actuator. The control output is indicative of the control signal.
Claims20
A method, comprising:
- selecting an actuator controller, including:
- responsive to the actuator being in a settle stage, selecting a first controller having an estimator-compensator architecture;
- responsive to the actuator being in a track follow stage, selecting a second controller having an architecture other than that of the first controller;
- and
- providing a control output, which is indicative of the control signal, from the selected controller to the actuator.
2 more elements
A method, comprising:
- providing an output signal from a first controller, having an estimator-compensator architecture, to an actuator;
- receiving a control signal indicative of a desired position of the actuator and a feedback signal indicative of an actual position of the actuator;
- and
- responsive to the control signal and the feedback signal, transitioning, from the first controller to a second controller having an architecture other than the estimator-compensator architecture so that the output signal is provided by the second controller.
1 more element
An apparatus, comprising:
- an actuator;
- and
- an actuator controller operably coupled to the actuator with a controller architecture including:
- a first controller having an estimator-compensator architecture;
- and
- a second controller having an architecture other than an estimator-compensator;
- wherein the actuator controller is configured to select one of the first and second controllers to provide an output to the actuator.
4 more elements
Dependencies are inferred from the claim text.