Title:
位置制御装置及びこれを用いたディスク装置
Document Type and Number:
Japanese Patent JP4908586
Kind Code:
B2
Abstract:
According to one embodiment, a position control apparatus includes: a digital control module that performs position control including disturbance adaptive control with a predetermined sampling period with the use of a control constant, in accordance with a position error between a target position and a current position of the object; and a table that stores the control constant corresponding to a value of sin(ωT/2), wherein the digital control module determines a control value of the actuator in accordance with the position error, calculates the value of sin(ωT/2) according to an adaptive law from a signal based on the position error, reads the corresponding control constant from the table in accordance with the calculated value of sin(ωT/2), and updates the control constant.
Inventors:
Kazuhiko Takaishi
Application Number:
JP2009514999A
Publication Date:
April 04, 2012
Filing Date:
April 27, 2007
Export Citation:
Assignee:
Toshiba Storage Device Co., Ltd.
International Classes:
G11B21/10
Domestic Patent References:
| JP2007004946A | ||||
| JP2006155875A |
Attorney, Agent or Firm:
Hiroaki Sakai