Development of the Multilayer Alternately Poled Piezoelectric Transformers

The structure of piezoelectric transformers were studied to enlarge the output power capacity. The power parameter m A 2 2 was proposed to predict the performance of the high-power piezoelectric transformers. In a former report, we proposed a new-structure piezoelectric transformer named alternately...

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Published in:Japanese Journal of Applied Physics 1998-05, Vol.37 (5S), p.2891
Main Authors: Kanayama, Kouichi, Maruko, Nobuhiro, Saigoh, Hiroaki
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Language:English
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description The structure of piezoelectric transformers were studied to enlarge the output power capacity. The power parameter m A 2 2 was proposed to predict the performance of the high-power piezoelectric transformers. In a former report, we proposed a new-structure piezoelectric transformer named alternately poled piezoelectric transformer (APT). Its step-up ratio was twice as large as that of the Rosen type transformer, in spite of the single layer structure. In this study, the APT with 1.5 wavelength resonant mode was modified to increase the output power capacity and the multilayer structure was utilized to enlarge the step-up ratio. As a result, both a high step-up ratio of 23 and the output power capacity of 7.1 W were accomplished under a load of 100 k Ω.
doi_str_mv 10.1143/JJAP.37.2891
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title Development of the Multilayer Alternately Poled Piezoelectric Transformers
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