Noise characteristics of Piezoelectric-Transformer DC-DC converter

Sunao Hamamura; Toshiyuki Zaitsu; Tamotsu Ninomiya; Masahito Shoyama

doi:10.1109/PESC.1998.703168

Noise characteristics of Piezoelectric-Transformer DC-DC converter

Sunao Hamamura, Toshiyuki Zaitsu, Tamotsu Ninomiya, Masahito Shoyama

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

13 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 language	English
Title of host publication	PESC Record - IEEE Annual Power Electronics Specialists Conference
Editors	Anon
Pages	1262-1267
Number of pages	6
DOIs	https://doi.org/10.1109/PESC.1998.703168
Publication status	Published - Jan 1 1998
Externally published	Yes
Event	Proceedings of the 1998 IEEE 29th Annual Power Electronics Specialists Conference, PESC. Part 2 (of 2) - Fukuoka, Jpn Duration: May 18 1998 → May 21 1998

Publication series

Name	PESC Record - IEEE Annual Power Electronics Specialists Conference
Volume	2
ISSN (Print)	0275-9306

Other

Other	Proceedings of the 1998 IEEE 29th Annual Power Electronics Specialists Conference, PESC. Part 2 (of 2)
City	Fukuoka, Jpn
Period	5/18/98 → 5/21/98

All Science Journal Classification (ASJC) codes

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

Access to Document

10.1109/PESC.1998.703168

Cite this

Noise characteristics of Piezoelectric-Transformer DC-DC converter. / Hamamura, Sunao; Zaitsu, Toshiyuki; Ninomiya, Tamotsu et al.
PESC Record - IEEE Annual Power Electronics Specialists Conference. ed. / Anon. 1998. p. 1262-1267 (PESC Record - IEEE Annual Power Electronics Specialists Conference; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Hamamura, S, Zaitsu, T, Ninomiya, T & Shoyama, M 1998, Noise characteristics of Piezoelectric-Transformer DC-DC converter. in Anon (ed.), PESC Record - IEEE Annual Power Electronics Specialists Conference. PESC Record - IEEE Annual Power Electronics Specialists Conference, vol. 2, pp. 1262-1267, Proceedings of the 1998 IEEE 29th Annual Power Electronics Specialists Conference, PESC. Part 2 (of 2), Fukuoka, Jpn, 5/18/98. https://doi.org/10.1109/PESC.1998.703168

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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.",

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Noise characteristics of Piezoelectric-Transformer DC-DC converter

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