3-D Finite Element Analysis of Linear Resonant Actuator under PID Control Using Back EMF

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概要

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• Recently, linear resonant actuators (LRAs) have been used in a wide range of applications since they have many advantages: high efficiency, simple structure, easy control, and so on. On the other hand, they have a problem in that the amplitude decreases significantly in response to an external load. To overcome this problem, the effectiveness of PID control using back electromotive force (EMF) in maintaining a constant amplitude against an external load is investigated. This paper proposes a numerical method involving the use of the 3-D finite element method to analyze the dynamic characteristics of LRA when it is operated under PID control in PWM feedback control by using the back EMF detected from a coil. The effectiveness of this method is shown through measurements obtained by using a prototype.

著者

• Ota Tomohiro

  Advanced Technologies Dev. Labratory Panasonic Electric Works Ltd.

• Hirata Katsuhiro

  Dept. Of Adaptive Machine Systems Graduate School Of Engineering Osaka University

• Asai Yasuyoshi

  Dept. of Adaptive Machine Systems, Graduate School of Engineering, Osaka University

関連論文

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• 3-D Finite Element Analysis of Linear Resonant Actuator under PID Control Using Back EMF

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