Noise characteristics of Piezoelectric-Transformer DC-DC converter

Sunao Hamamura, Toshiyuki Zaitsu, Tamotsu Ninomiya, Masahito Shoyama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

21 Citations (Scopus)

Abstract

A Piezoelectric-Transformer (PT) is expected for a low-electric-noise device because it transmits power by mechanical vibration. However, there has been no study about noise of the PT so far. In this paper, we propose a model which focuses on a parasitic impedance of the PT, and compare its simulated result with an observed common-mode noise in the PT DC-DC converter to confirm a mechanism of the common-mode noise occurrence. As a result, we found that the parasitic impedance between the input and output terminals of the PT provides the path for common-mode noise. Furthermore, we propose an improved version of the PT DC-DC converter to reduce the common-mode noise, that is based on this noise analysis. As a result, drastic noise reduction was achieved.

Original languageEnglish
Title of host publicationPESC Record - IEEE Annual Power Electronics Specialists Conference
Editors Anon
Pages1262-1267
Number of pages6
DOIs
Publication statusPublished - Jan 1 1998
Externally publishedYes
EventProceedings of the 1998 IEEE 29th Annual Power Electronics Specialists Conference, PESC. Part 2 (of 2) - Fukuoka, Jpn
Duration: May 18 1998May 21 1998

Publication series

NamePESC Record - IEEE Annual Power Electronics Specialists Conference
Volume2
ISSN (Print)0275-9306

Other

OtherProceedings of the 1998 IEEE 29th Annual Power Electronics Specialists Conference, PESC. Part 2 (of 2)
CityFukuoka, Jpn
Period5/18/985/21/98

All Science Journal Classification (ASJC) codes

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

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