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首页> 外文期刊>Review of Scientific Instruments >Step-down piezoelectric transformer fabricated with (1−x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 single crystal
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Step-down piezoelectric transformer fabricated with (1−x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 single crystal

机译:用(1-x)Pb(Mg1 / 3 Nb2 / 3 )O3 –xPbTiO3 单晶制成的降压压电变压器

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摘要

In present work, a ring-type unipoled step-down piezoelectric transformer with the dimensions of Φ16×0.7 mm3 was designed and fabricated using relaxor ferroelectric single crystal (1−x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 (PMN-PT). Both the input and output parts of this transformer were poled along the thickness direction, utilizing the radial vibration mode of PMN-PT. The electrical measurement results indicated that under the matching load resistance of 257 Ω, a voltage transformation ratio of 0.44 was obtained at the resonance frequency of 105 kHz. The frequency and load dependences of this transformer were also systematically studied and discussed. With the input voltage increasing, a maximum output power of about 0.9 W was obtained with the temperature rise less than 5 °C. This step-down single-crystal transformer show potential applications in compact-size, small-power ac-dc converters. © 2010 American Institute of Physics Article Outline INTRODUCTION EXPERIMENT RESULTS AND DISCUSSIONS SUMMARY
机译:在目前的工作中,使用弛豫铁电单晶(1-x)Pb(Mg1 / 3 Nb2)设计制造了Φ16×0.7 mm3 尺寸的环形单极降压压电变压器。 / 3 )O3 –xPbTiO3 (PMN-PT)。利用PMN-PT的径向振动模式,该变压器的输入和输出部分均沿厚度方向极化。电学测量结果表明,在257的匹配负载电阻下,在105 kHz的谐振频率下获得0.44的电压变换比。还对该系统的频率和负载依赖性进行了系统地研究和讨论。随着输入电压的增加,在温度上升低于5°C时获得的最大输出功率约为0.9W。这种降压型单晶变压器在紧凑型小功率AC-DC转换器中显示出潜在的应用。 ©2010美国物理研究所文章大纲引言实验结果和讨论摘要

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