DocumentCode
56200
Title
Amplitude Control Method of Linear Resonant Actuator by Load Estimation From the Back-EMF
Author
Asai, Yusuke ; Hirata, Kazufumi ; Ota, Takahisa
Author_Institution
Dept. of Adaptive Machine Syst., Osaka Univ., Suita, Japan
Volume
49
Issue
5
fYear
2013
fDate
May-13
Firstpage
2253
Lastpage
2256
Abstract
This paper proposes a feedback control method for a linear resonant actuator (LRA), in which an external load estimated from two signals of the back-EMF is used as a target voltage in PID control. From the estimated load, it becomes possible to obtain an arbitrary amplitude of the mover. The effectiveness of this method was verified through FEM analysis.
Keywords
actuators; electric potential; finite element analysis; pulse width modulation; three-term control; FEM analysis; PID control; amplitude control method; back-EMF signals; external load; feedback control method; linear resonant actuator; load estimation; mover arbitrary amplitude; target voltage; External load estimation; PWM control; finite element method; linear resonant actuator;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.2013.2243419
Filename
6515162
Link To Document