Title :
Dual-stage servo design for hard disk drives
Author :
Lee, Seung-Hi ; Suh, Sang-Min ; Chung, Chung Choo
Author_Institution :
Samsung Adv. Inst. of Technol., Suwon, South Korea
Abstract :
This paper considers dual-stage servo design for hard disk drives. An optimal control design technique to minimize destructive interference between two actuators is presented so as to design a fixed order dual-stage actuator control system producing good time and frequency responses. Experiment results are also presented to demonstrate substantial improvements in track seeking in the microactuator range and track following via the dual-stage actuator control.
Keywords :
control system synthesis; frequency response; hard discs; microactuators; minimisation; servomechanisms; time optimal control; dual stage actuator; dual stage servo design; frequency response; hard disk drives; microactuator range; minimum destructive interference; optimal control; proximate-time-optimal control; time response; Actuators; Control systems; Disk drives; Frequency; Hard disks; Interference; Open loop systems; Optimal control; Servomechanisms; Sliding mode control;
Conference_Titel :
American Control Conference, 2003. Proceedings of the 2003
Print_ISBN :
0-7803-7896-2
DOI :
10.1109/ACC.2003.1243459
