Friction compensation of a mini voice coil motor by sliding mode control

Ching Lung Tsai*, Ti Chung Lee, Shir-Kuan Lin

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

8 Scopus citations

Abstract

This paper presents a sliding mode controller to compensate the friction of mini voice-coil motor (VCM), embedded with guide pins, for position control in compact camera module (CCM) application. In the VCM, actuator full stroke is only 0.35mm or less, nonlinear friction force falls into mismatched condition and um-level resolution is required. With proposed controller, arbitrarily small steady state error can be approached by pole placement of the sliding mode state equation. The performance is firstly simulated with a physical VCM model. The experimental result is then presented to demonstrate the proposed controller is able to avoid stick-slip oscillation that usually yields when using classic controller, such as PI controller.

Original languageEnglish
Title of host publicationProceedings - IEEE ISIE 2009, IEEE International Symposium on Industrial Electronics
Pages609-614
Number of pages6
DOIs
StatePublished - 1 Dec 2009
EventIEEE International Symposium on Industrial Electronics, IEEE ISIE 2009 - Seoul, Korea, Republic of
Duration: 5 Jul 20098 Jul 2009

Publication series

NameIEEE International Symposium on Industrial Electronics

Conference

ConferenceIEEE International Symposium on Industrial Electronics, IEEE ISIE 2009
CountryKorea, Republic of
CitySeoul
Period5/07/098/07/09

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