Fabrication of high-power piezoelectric transformers using lead-free ceramics for application in electronic ballasts

Song Ling Yang; Shih Ming Chen; Cheng Che Tsai; Cheng Shong Hong; Sheng-Yuan Chu

doi:10.1109/TUFFC.2013.2577

Fabrication of high-power piezoelectric transformers using lead-free ceramics for application in electronic ballasts

Song Ling Yang, Shih Ming Chen, Cheng Che Tsai, Cheng Shong Hong, Sheng-Yuan Chu

Research output: Contribution to journal › Article

13 Citations (Scopus)

Abstract

CuO is doped into (Na_0.5K_0.5)NbO₃ (NKN) ceramics to improve the piezoelectric properties and thus obtain a piezoelectric transformer (PT) with high output power. In X-ray diffraction patterns, the diffraction angles of the CuO-doped NKN ceramics shift to lower values because of an expansion of the lattice volume, thus inducing oxygen vacancies and enhancing the mechanical quality factor. A homogeneous microstructure is obtained when NKN is subjected to CuO doping, leading to improved electrical properties. PTs with different electrode areas are fabricated using the CuO-doped NKN ceramics. Considering the efficiency, voltage gain, and temperature rise of PTs at a load resistance of 1 kΩ, PTs with an electrode with an inner diameter of 15 mm are combined with the circuit design for driving a 13-W T5 fluorescent lamp. A temperature rise of 6°C and a total efficiency of 82.4% (PT and circuit) are obtained using the present PTs.

Original language	English
Article number	6416496
Pages (from-to)	408-413
Number of pages	6
Journal	IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume	60
Issue number	2
DOIs	https://doi.org/10.1109/TUFFC.2013.2577
Publication status	Published - 2013 Feb 4

All Science Journal Classification (ASJC) codes

Instrumentation
Acoustics and Ultrasonics
Electrical and Electronic Engineering

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Yang, S. L., Chen, S. M., Tsai, C. C., Hong, C. S., & Chu, S-Y. (2013). Fabrication of high-power piezoelectric transformers using lead-free ceramics for application in electronic ballasts. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 60(2), 408-413. [6416496]. https://doi.org/10.1109/TUFFC.2013.2577

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abstract = "CuO is doped into (Na0.5K0.5)NbO3 (NKN) ceramics to improve the piezoelectric properties and thus obtain a piezoelectric transformer (PT) with high output power. In X-ray diffraction patterns, the diffraction angles of the CuO-doped NKN ceramics shift to lower values because of an expansion of the lattice volume, thus inducing oxygen vacancies and enhancing the mechanical quality factor. A homogeneous microstructure is obtained when NKN is subjected to CuO doping, leading to improved electrical properties. PTs with different electrode areas are fabricated using the CuO-doped NKN ceramics. Considering the efficiency, voltage gain, and temperature rise of PTs at a load resistance of 1 kΩ, PTs with an electrode with an inner diameter of 15 mm are combined with the circuit design for driving a 13-W T5 fluorescent lamp. A temperature rise of 6°C and a total efficiency of 82.4% (PT and circuit) are obtained using the present PTs.",

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Fabrication of high-power piezoelectric transformers using lead-free ceramics for application in electronic ballasts. / Yang, Song Ling; Chen, Shih Ming; Tsai, Cheng Che; Hong, Cheng Shong; Chu, Sheng-Yuan.

In: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, Vol. 60, No. 2, 6416496, 04.02.2013, p. 408-413.

Research output: Contribution to journal › Article

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