Title :
Electrical Properties of Step-down Multilayer Piezoelectric Transformer for AC-DC converter
Author :
Yoo, Ju-Hyun ; Kim, Kook-Jin ; Lee, Chang-Bae ; Paik, Dong-Soo ; Yoon, Hyun-Sang ; Hong, Jae-II
Author_Institution :
Semyung Univ., Chungbuk
fDate :
July 30 2006-Aug. 3 2006
Abstract :
Multilayer piezoelectric transformers (MPT) were manufactured using PZN-PMN-PZT ceramics and their electrical properties were then investigated according to frequency and load resistance. The voltage step-up ratio of multilayer piezoelectric transformer showed the maximum value in the vicinity of 73 kHz and increased according to the increase of load resistance. When the output impedance coincided with the load resistance, the piezoelectric transformer showed the temperature rise of about 21degC at the output power of 15 W. The multilayer piezoelectric transformer manufactured at low cofiring temperature of ~940degC using PZN-PMN-PZT ceramics could be stably driven as the step-up or down transformers.
Keywords :
AC-DC power convertors; piezoceramics; piezoelectric devices; transformers; AC-DC converter; PZN-PMN-PZT ceramics; PZT; load resistance; step-down multilayer piezoelectric transformer; AC-DC power converters; Capacitance; Ceramics; Electric resistance; Electrodes; Manufacturing; Nonhomogeneous media; Powders; Power generation; Temperature; PZN substitution; low temperature sintering; multilayer piezoelectric transformer(MPT); tape casting;
Conference_Titel :
Applications of ferroelectrics, 2006. isaf '06. 15th ieee international symposium on the
Conference_Location :
Sunset Beach, NC
Print_ISBN :
978-1-4244-1331-7
Electronic_ISBN :
1099-4734
DOI :
10.1109/ISAF.2006.4387871
