用于输出功率为30w的交直流变换器的压电变压器

Proceedings of the 13th IEEE International Symposium on Applications of Ferroelectrics, 2002. ISAF 2002. Pub Date : 2002-05-28 DOI:10.1109/ISAF.2002.1195940

M. Yamamoto, Y. Sasaki, T. Inoue, A. Ochi, S. Hamamura

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引用次数: 2

摘要

介绍了一种采用交直流变换器的压电变压器，该变压器在厚度方向上具有多层结构，工作方式为外展振动模式。输出阻抗设计得很低，大约几十欧姆。对长14mm、宽14mm、宽5.8 mm的自制变压器进行了测试，结果表明，当温度升高30/spl℃时，变压器增益为0.4，输出功率为26w，在135 kHz时效率为96.3%。用该变压器制成的交直流变换器具有良好的线路和负载调节性能，最高效率为90.2%。

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Piezoelectric transformer for 30 W output AC-DC converters

A piezoelectric transformer using AC-DC converters is described that has a multilayered construction in the thickness direction and operates in contour-extensional vibration mode. The output impedance is designed to be low - approximately several tens of ohms. Testing of a fabricated transformer 14 mm long, 14 mm, wide, and 5.8 mm showed that it had a 0.4 gain, 26 W output power, and 96.3% efficiency at 135 kHz when the temperature increase was 30/spl deg/C. A fabricated AC-DC converter with this transformer had good line and load regulation and a maximum efficiency of 90.2%.

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Proceedings of the 13th IEEE International Symposium on Applications of Ferroelectrics, 2002. ISAF 2002.

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