단결정을 사용한 압전변압기의 개발
Development of Piezoelectric Transformer Using The Single Crystal of LiTaO_3
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초록
The single crystal of has very stable thermal characteristics in a piezoelectric transformer. In this paper, a piezoelectric transformer made of the crystal is newly designed and its operating characteristics are analyzed. The length of the transformer is determined as twice as its width for Lame'-mode because the single crystal of has low electro-acoustic efficiency. The electric and vibrational characteristics of the transformer is simulated by the PSpice program, and its results are compared to experimental ones. As the results, the ratio of output voltage to input shows large than 10 at 290.83[㎑], which is the frequency coupled the 2nd harmonic for length and the fundamental for width of the Lame'-mode transformer.
Abstract
The single crystal of has very stable thermal characteristics in a piezoelectric transformer. In this paper, a piezoelectric transformer made of the crystal is newly designed and its operating characteristics are analyzed. The length of the transformer is determined as twice as its width for Lame'-mode because the single crystal of has low electro-acoustic efficiency. The electric and vibrational characteristics of the transformer is simulated by the PSpice program, and its results are compared to experimental ones. As the results, the ratio of output voltage to input shows large than 10 at 290.83[㎑], which is the frequency coupled the 2nd harmonic for length and the fundamental for width of the Lame'-mode transformer.