title: Modeling and analysis of circular flexural-vibration-mode piezoelectric transformer.
abstract: 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.
authors.affiliation: Sun Yat-Sen University, Department of Electrical Engineering, Guangzhou, Guangdong, China. huangyih@mail.sysu.edu.cn
authors.forename: Yihua
authors.initials: Y
authors.lastname: Huang
authors.forename: Wei
authors.initials: W
authors.lastname: Huang