Low-Loss Piezoelectric Transformer Using Energy Trapping of Width Vibration

概要

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Piezoelectric transformers proposed by Rosen have been studied for high-voltage step-up applications. A piezoelectric transformer using LiNbO_3 proposed recently by Nakamura and Adachi has low loss and a simple structure. The plate of a conventional piezoelectric transformer was supported only at the node of vibration. Rigid support and loss suppression are required for high-power and high-voltage applications. To apply a piezo-electric transformer to a power circuit, we studied methods for supporting the piezoelectric plate and reducing loss. Based on these studies, we proposed a piezoelectric transformer using energy trapping of the width-shear vibration in a LiNbO_3 plate.
社団法人応用物理学会の論文
1993-05-30