PWM drive of IPMC actuators with the consideration of the capacitive impedance

Kentaro Takagi; Naoya Yamaguchi; Kinji Asaka

doi:10.1117/12.880360

28 March 2011 PWM drive of IPMC actuators with the consideration of the capacitive impedance

Kentaro Takagi, Naoya Yamaguchi, Kinji Asaka

Proceedings Volume 7976, Electroactive Polymer Actuators and Devices (EAPAD) 2011; 79762L (2011) https://doi.org/10.1117/12.880360
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2011, San Diego, California, United States

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.

Citation Download Citation

Kentaro Takagi, Naoya Yamaguchi, and Kinji Asaka "PWM drive of IPMC actuators with the consideration of the capacitive impedance", Proc. SPIE 7976, Electroactive Polymer Actuators and Devices (EAPAD) 2011, 79762L (28 March 2011); https://doi.org/10.1117/12.880360

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