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Proceedings Paper

PWM drive of IPMC actuators with the consideration of the capacitive impedance
Author(s): Kentaro Takagi; Naoya Yamaguchi; Kinji Asaka
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Paper Abstract

This paper considers driving an Ionic Polymer-Metal Composite (IPMC) actuator using a Pulse Width Modulation (PWM) amplifier, in order to shed light on the characteristics of PWM driving of IPMCs. Generally, it is said that an efficiency of a PWM amplifier is higher than that of a linear amplifier. However, high current flows across the IPMC in the use of a PWM amplifier, and it is supposed to become the power consumption high. We solve this problem by putting an inductor between the PWM amplifier and the IPMC. The simulation and the experiment results demonstrate the effectiveness of the proposed method.

Paper Details

Date Published: 28 March 2011
PDF: 8 pages
Proc. SPIE 7976, Electroactive Polymer Actuators and Devices (EAPAD) 2011, 79762L (28 March 2011); doi: 10.1117/12.880360
Show Author Affiliations
Kentaro Takagi, Nagoya Univ. (Japan)
RIKEN (Japan)
Naoya Yamaguchi, Nagoya Univ. (Japan)
Kinji Asaka, AIST (Japan)

Published in SPIE Proceedings Vol. 7976:
Electroactive Polymer Actuators and Devices (EAPAD) 2011
Yoseph Bar-Cohen; Federico Carpi, Editor(s)

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