Title :
Analysis and modeling of a voltage doubler rectifier fed by a piezoelectric transformer
Author :
Ivensky, Gregory ; Shvartsas, Moshe ; Ben-Yaakov, Shmuel
Author_Institution :
Dept. of Electr. & Comput. Eng., Ben-Gurion Univ. of the Negev, Beer-Sheva, Israel
fDate :
3/1/2004 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 the 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 simulation and experimental results.
Keywords :
DC-DC power convertors; equivalent circuits; harmonic analysis; piezoelectric devices; power transformers; rectifying circuits; ac-dc stage; current waveforms; dc-dc converters; harmonics approximation; linear ac equivalent circuit; piezoelectric transformer; voltage doubler rectifier; voltage doubling rectification scheme; voltage waveforms; Capacitors; Costs; Diodes; Equivalent circuits; Filters; Rectifiers; Resonance; Resonant frequency; Topology; Voltage;
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2003.823179
