Sun Yat-Sen University, Department of Electrical Engineering, Guangzhou, Guangdong, China.
IEEE Trans Ultrason Ferroelectr Freq Control. 2010 Dec;57(12):2764-71. doi: 10.1109/TUFFC.2010.1750.
We propose a circular flexural-vibration-mode piezoelectric transformer and perform a theoretical analysis of the transformer. An equivalent circuit is derived from the equations of piezoelectricity and the Hamilton's principle. With this equivalent circuit, the voltage gain ratio, input impedance, and the efficiency of the circular flexural-vibration-mode piezoelectric transformer can be determined. The basic behavior of the transformer is shown by numerical results.
我们提出了一种圆形弯曲振动模式压电变压器，并对其进行了理论分析。从压电方程和哈密顿原理推导出了等效电路。利用该等效电路，可以确定圆形弯曲振动模式压电变压器的电压增益比、输入阻抗和效率。数值结果显示了变压器的基本特性。
