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High Power Universal Piezoelectric Transformer.
- Source :
-
IEEE Transactions on Ultrasonics Ferroelectrics & Frequency Control . Jan2006, Vol. 53 Issue 1, p23-29. 7p. 3 Diagrams, 1 Graph. - Publication Year :
- 2006
-
Abstract
- This study describes a multilayer piezoelectric voltage and power transformer that has one direction poling, operates in a wide-frequency range and delivers both step-up and step-down voltages by inverting the electrical connections. In this design, the input and output electrodes are on the same side of the disk and are isolated from each other by a fixed isolation gap. The electrode pattern is a ring/dot structure such that it uses radial mode for both input and output part that are built-in on the same ceramic disk. A prototype transformer was fabricated of size 15 x 2.78 mm2 having mass of 3.8 gm. In the step-down con- figuration at the constant output power of 6 W, the transformer characteristics across a 100 11 load were found to be efficiency = 92%, gain = 0.21 input voltage = 110 Vrms, and temperature rise = 20°C from the room temperature. In the step-up configuration at the constant output power of 5 W, the transformer characteristics across a 5 kΩ load were found to be efficiency = 97%, gain = 9.5, input volt- age = 16 Vrms, and temperature rise = 8°C from the room temperature. A detailed equivalent circuit analysis of the transformer was done, and the results were found to be in excellent agreement with the experimental results. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 08853010
- Volume :
- 53
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Ultrasonics Ferroelectrics & Frequency Control
- Publication Type :
- Academic Journal
- Accession number :
- 19525103
- Full Text :
- https://doi.org/10.1109/TUFFC.2006.1588387