Parallel connection of piezoelectric transformers

Svetlana Bronstein, Gregory Ivensky, Sam Ben-Yaakov

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

10 Scopus citations


The behavior of parallel connected Piezoelectric Transformers (PTs) was analyzed by applying the generic PT model to represent the combined network in the most general way. The influence of a deviation in each of the PT parameters was examined with respect to total output and losses in each PT. It was found that the requirement for identity in the equivalent circuit parameters R m and Co in the two PTs is not strong. The most critical parameter for equal loss in the PTs is (ωr - the mechanical resonant frequency of PTs, which has to be equal in the parallel units, even though the values of the parameters Cr and Lr can be slightly different. Since the resonant LCC type inverters are practically identical to the equivalent electrical circuit of PTs, the results of this study are relevant to combined connected LCC inverters. The analytical results of this study were verified by SPICE simulation and experiments. The experiments were done on parallel-connected PTs (T1-2, Face Co., VA, USA) and LCC inverters built by passive elements.

Original languageEnglish
Title of host publication2004 IEEE 35th Annual Power Electronics Specialists Conference, PESC04
Number of pages7
StatePublished - 29 Nov 2004
Event2004 IEEE 35th Annual Power Electronics Specialists Conference, PESC04 - Aachen, Germany
Duration: 20 Jun 200425 Jun 2004

Publication series

NamePESC Record - IEEE Annual Power Electronics Specialists Conference
ISSN (Print)0275-9306


Conference2004 IEEE 35th Annual Power Electronics Specialists Conference, PESC04

ASJC Scopus subject areas

  • Modeling and Simulation
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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