Lead-free multilayer piezoelectric transformer

Guo, M., Jiang, X.P., Lam, K.H. , Wang, S., Sun, C.L., Chan, H. L.W. and Zhao, X.Z. (2007) Lead-free multilayer piezoelectric transformer. Review of Scientific Instruments, 78(1), 016105. (doi: 10.1063/1.2432245) (PMID:17503954)

Abstract

In this article, a multilayer piezoelectric transformer based on lead-free Mn-doped 0.94(Bi1/2Na1/2)TiO3-0.06 BaTiO3 ceramics is presented. This piezoelectric transformer, with a multilayered construction in the thickness direction, is 8.3mm long, 8.3mm wide, and 2.3mm thick. It operates in the second thickness extensional vibration mode. For a temperature rise of 20°C⁠, the transformer has an output power of >0.3W⁠. With a matching load resistance of 10Ω⁠, its maximum efficiency approaches 81.5%, and the maximum voltage gain is 0.14. It has potential to be used in low voltage power supply units such as low power adapter and other electronic circuits.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Lam, Dr Koko
• Authors: Guo, M., Jiang, X.P., Lam, K.H., Wang, S., Sun, C.L., Chan, H. L.W., and Zhao, X.Z.
• College/School: College of Science and Engineering > School of Engineering > Systems Power and Energy
• Journal Name: Review of Scientific Instruments
• Publisher: American Institute of Physics
• ISSN: 0034-6748
• ISSN (Online): 1089-7623