Multilayered Unipoled Piezoelectric Transformers
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概要
- 論文の詳細を見る
This study describes a multi-layer piezoelectric voltage and power transformer which has one direction poling, operates in a wide-frequency range and delivers both step-up and step-down voltages by inverting the electrical connections. In this design, the input and output electrodes are on the same side of the disk and are isolated from each other by a fixed gap. Investigations were performed on a disk of diameter 29.1 mm. The electrode pattern is a ring/dot structure, where a strip connects the dots. Various ratios of input to output area were studied and it was found that area ratio in the range of 2.8–3.3 or the output diameter in range of 13–15 mm yields high power and efficiency. The power density for the optimized single layer transformer was 40 W/cm3 while that for the 3-layer structure was 25 W/cm3. Though the power increased with multilayer structure, the effective power density decreased because of the interlayer constraints.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2004-06-15
著者
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Ezaki Toru
Taiheiyo Cement Corporation
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PRIYA Shashank
APC International Ltd.
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Kim Hyeoung
International Center For Actuators And Transducers Materials Research Institute The Pennsylvania Sta
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Ural Seyit
International Center For Actuators And Transducers Materials Research Institute The Pennsylvania Sta
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Uchino Kenji
International Center For Actuators And Transducers (icat) Intercollege Materials Research Laboratory
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Uchino Kenji
International Center for Actuators and Transducers, Pennsylvania State University, University Park, PA 16802, USA
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Ural Seyit
International Center for Actuators and Transducers, Pennsylvania State University, University Park, PA 16802, USA
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Ezaki Toru
Taiheiyo Cement Corporation, 2-4-2 Ohsaku Sakura, Chiba, Japan
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Kim Hyeoung
International Center for Actuators and Transducers (ICAT), Materials Research Institute, Pennsylvania State University, University Park, PA 16802, U. S. A.
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Kim Hyeoung
International Center for Actuators and Transducers, Pennsylvania State University, University Park, PA 16802, USA
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