| 径向振动压电变压器的等效电路模型及特性研究 |
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| 引用本文： | 黄以华,周康源,施俊,顾宇. 径向振动压电变压器的等效电路模型及特性研究[J]. 电子学报, 2002, 30(11): 1585-1588 |
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| 作者姓名： | 黄以华 周康源 施俊 顾宇 |
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| 作者单位： | 1. 中山大学电子与通信工程系,广东广州 510275;2. 中国科学技术大学电子工程与信息科学系,安徽合肥 230027 |
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| 基金项目： | 国家自然科学基金 (No .598770 2 3) |
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| 摘 要： | 本文使用线性压电方程并结合相关的弹性理论对目前国际上刚刚出现的径向振动压电变压器进行了分析和研究,导出了该压电变压器的等效电路模型,并根据电路模型得出径向振动压电变压器的输入阻抗、输出阻抗、升压比、输出功率及效率等特性的数学表达式.文中通过实验对上述特性加以验证,实验结果与理论计算值基本一致,说明本文给出的径向振动压电变压器等效电路模型及其各种特性的数学表达式是正确的.
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| 关 键 词： | 压电变压器 径向振动 等效电路 |
| 文章编号： | 0372-2112(2002)11-1585-04 |
The Equivalent Circuit Model and Characteristic of Radial Vibration Mode Piezoelectric Transformer |
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| HUANG Yi hua ,ZHOU Kang yuan ,SHI Jun ,GU Yu. The Equivalent Circuit Model and Characteristic of Radial Vibration Mode Piezoelectric Transformer[J]. Acta Electronica Sinica, 2002, 30(11): 1585-1588 |
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| Authors: | HUANG Yi hua ZHOU Kang yuan SHI Jun GU Yu |
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| Affiliation: | 1. Department of Electronic and Communication,Zhongshan University,Guangzhou,Guangdong 510275,China;2. Department of Electronic Engineering and Information Science,University of Science and Technology of China,Hefei,Anhui 230027,China |
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| Abstract: | A new kind of piezoelectric transformer,radial vibration mode piezoelectric transformer,is investigated through linear piezoelectric equations combined with the theory of elasticity,and its equivalent circuit model is deduced.According to the model,the mathematical expressions of the input impedance,output impedance,voltage gain,output power and efficiency of radial vibration mode piezoelectric transformer are concluded.These expressions are verified by the experiment results. |
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| Keywords: | piezoelectric transformer radial vibration equivalent circuit |
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