By Topic

Minimum destructive interference design of dual-stage control systems for hard disk drives

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Seung-Hi Lee ; Samsung Adv. Inst. of Technol., Suwon, South Korea ; Young-Hoon Kim

This paper presents the design of a dual-stage actuator control system consisting of a voice coil motor and a microactuator (MA). A dual-stage actuator model is developed to include a dominant MA flexible mode and the interaction between both actuators. Fundamental observations and design strategy are followed by a proposition of a dual-stage actuator control system to be used for track-seek in the MA range, track-follow, and settle. A new performance index, destructive interference, is introduced to express the degree of cooperation between both actuator systems with very different specifications and characteristics. In the dual-stage actuator control design, the measure of destructive interference is minimized to determine a MA controller so as to attain desired time and frequency responses. Robustness analysis is conducted using the structured singular value method on the resulting dual-stage actuator control system. Through an application example, it is demonstrated that minimizing the destructive interference produces a dual-stage actuator control system with desired time and frequency responses.

Published in:

Control Systems Technology, IEEE Transactions on  (Volume:12 ,  Issue: 4 )