Lead-free multilayer piezoelectric transformer

Mingsen Guo, X. P. Jiang, Kwok Ho Lam, S. Wang, C. L. Sun, Helen L W Chan, X. Z. Zhao

Research output: Journal article publicationJournal articleAcademic researchpeer-review

3 Citations (Scopus)


In this article, a multilayer piezoelectric transformer based on lead-free Mn-doped 0.94 (Bi12 Na12) Ti O3 -0.06BaTi O3 ceramics is presented. This piezoelectric transformer, with a multilayered construction in the thickness direction, is 8.3 mm long, 8.3 mm wide, and 2.3 mm thick. It operates in the second thickness extensional vibration mode. For a temperature rise of 20 °C, the transformer has an output power of 0.3 W. With a matching load resistance of 10 , 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.
Original languageEnglish
Article number016105
JournalReview of Scientific Instruments
Issue number1
Publication statusPublished - 8 Apr 2007

ASJC Scopus subject areas

  • Instrumentation


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