Adaptive feedforward rejection of microactuator resonance in disk drive dual-stage actuator servo

Author

Dong-Ho Oh ; Seung-Hi Lee ; Sang-Fun Baek

Author_Institution

Nano Syst. Lab., Samsung Adv. Inst. of Technol., Suwon, South Korea

fYear

2000

fDate

6-8 Nov. 2000

Abstract

This paper proposes a novel adaptive feedforward controller (AFC) design method for eliminating the effect of microactuator resonance on dual-stage actuator servo systems for hard disk drives. An adaptive resonance frequency tracking algorithm is also proposed to deal with uncertain resonance frequency, which is developed based on the orthogonality of AFC coefficients. The performance of the proposed AFC is tested by numerical simulations.

Keywords

adaptive control; disc drives; feedforward; hard discs; microactuators; resonance; servomechanisms; AFC coefficients; adaptive feedforward controller; adaptive feedforward rejection; adaptive resonance frequency tracking algorithm; disk drive dual-stage actuator servo; dual-stage actuator servo systems; hard disk drives; microactuator resonance; numerical simulations; orthogonality; uncertain resonance frequency; Actuators; Adaptive control; Automatic frequency control; Control systems; Design methodology; Microactuators; Programmable control; Resonance; Resonant frequency; Servomechanisms;

fLanguage

English

Publisher

ieee

Conference_Titel

Asia-Pacific Magnetic Recording Conference, 2000. APMRC 2000

Conference_Location

Tokyo, Japan

Print_ISBN

0-7803-6254-3

Type

conf

DOI

10.1109/APMRC.2000.898962

Filename

898962