Title :
Analysis and modeling of a piezoelectric transformer in high output voltage applications
Author :
Ivensky, Gregory ; Shvartsas, Moshe ; Ben-yaakov, Sam
Author_Institution :
Dept. of Electr. & Comput. Eng., Ben-Gurion Univ. of the Negev, Beer-Sheva, Israel
fDate :
6/22/1905 12:00:00 AM
Abstract :
Piezoelectric transformers (PZT) can be used advantageously in high output voltage DC-DC converters. In such applications, the output section includes a voltage doubling rectification scheme to help increase the output voltage. This topology was modeled and analyzed by considering the expected voltage and current waveforms under first harmonics approximation. The results were then used to build a linear AC equivalent circuit that emulates the AC-DC stage. The proposed model was verified against experimental results
Keywords :
AC-DC power convertors; DC-DC power convertors; equivalent circuits; piezoelectric devices; power transformers; rectifying circuits; AC-DC stage emulation; DC-DC power converters; current waveforms; first harmonics approximation; high output voltage applications; linear AC equivalent circuit; output voltage improvement; piezoelectric transformer; topology modelling; voltage doubling rectification scheme; voltage waveforms; Application software; Capacitors; Circuit topology; Costs; DC-DC power converters; Equivalent circuits; Filters; Laboratories; Power electronics; SPICE;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2000. APEC 2000. Fifteenth Annual IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-5864-3
DOI :
10.1109/APEC.2000.822822
