Parallel input parallel output high voltage bi-directional converters for driving dielectric electro active polymer actuators

P. Thummala; Z. Zhang; M. A. E. Andersen; S. Rahimullah

doi:10.1117/12.2044887

8 March 2014 Parallel input parallel output high voltage bi-directional converters for driving dielectric electro active polymer actuators

P. Thummala, Z. Zhang, M. A. E. Andersen, S. Rahimullah

Author Affiliations +

Proceedings Volume 9056, Electroactive Polymer Actuators and Devices (EAPAD) 2014; 90561N (2014) https://doi.org/10.1117/12.2044887
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2014, San Diego, California, United States

Abstract

Dielectric electroactive polymer (DEAP) actuators are capacitive devices which provide mechanical motions when charged electrically. The charging characteristics of a DEAP actuator depends on its size, voltage applied to its electrodes, and its operating frequency. The main idea of this paper is to design and implement driving circuits for the DEAP actuators for their use in various applications. This paper presents implementation of parallel input, parallel output, high voltage (~2.5 kV) bi-directional DC-DC converters for driving the DEAP actuators. The topology is a bidirectional flyback DC-DC converter incorporating commercially available high voltage MOSFETs (4 kV) and high voltage diodes (5 kV). Although the average current of the aforementioned devices is limited to 300 mA and 150 mA, respectively, connecting the outputs of multiple converters in parallel can provide a scalable design. This enables operating the DEAP actuators in various static and dynamic applications e.g. positioning, vibration generation or damping, and pumps. The proposed idea is experimentally verified by connecting three high voltage converters in parallel to operate a single DEAP actuator. The experimental results with both film capacitive load and the DEAP actuator are shown for a maximum charging voltage of 2 kV.

Citation Download Citation

P. Thummala, Z. Zhang, M. A. E. Andersen, and S. Rahimullah "Parallel input parallel output high voltage bi-directional converters for driving dielectric electro active polymer actuators", Proc. SPIE 9056, Electroactive Polymer Actuators and Devices (EAPAD) 2014, 90561N (8 March 2014); https://doi.org/10.1117/12.2044887

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available