Design and Analysis of the PZT-Based Piezoelectric Transformer


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Piezoelectric transformer (PT) is a combination of piezoelectric actuator and transducer, which serve as the primary side and the secondary side respectively. In the present study the disk – shaped (of 20 mm in diameter and 0.6 mm in thickness), unipoled radial mode piezoelectric transformer based on modified PZT-type solid solution was custom designed and fabricated. Different input and output area ratios of the PT were studied, namely: 21, 4, 1. The electrical properties like voltage step-up ratio, output power and temperature rise were measured for PT operating at the first resonance frequency. With the driving voltage of 20 VRMS, the 3 W output power, 165 VRMS output voltage an temperature rise of 20 0C was obtained for PT with the input/output area ratio of 1. The voltage step-up ratio of 12.5 was obtained for PT with input/output area ratio of 21.



Materials Science Forum (Volumes 514-516)

Edited by:

Paula Maria Vilarinho




L. Kozielski et al., "Design and Analysis of the PZT-Based Piezoelectric Transformer ", Materials Science Forum, Vols. 514-516, pp. 198-201, 2006

Online since:

May 2006




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