Unipoled disk-type piezoelectric transformers

Philippe Bouchilloux, Kenji Uchino

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

Unipoled piezoelectric transformers with different input and output area ratios were fabricated. The electrical properties in terms of voltage step-up ratio, output power, efficiency, and temperature rise were measured at various load resistance. The voltage step-up ratio increased proportionally with load resistance. The relative efficiency showed a maximum value of more than 98% in the transformer, which is 23.6 mm in diameter and 1.0 mm in thickness with input/out electrode area ratio of 0.62. With the driving voltage of 35 Vrms, the 8.1 W output power was obtained in the transformer with an input/output electrodes area ratio of 6.47. In such conditions, the temperature rise was only 15°C from room temperature. This transformer, which has approximately ten times higher power density than a rectangular Rosen-type piezoelectric transformer, was successfully applied to operate an 8 W compact fluorescent lamp.

Original languageEnglish (US)
Pages (from-to)1446-1450
Number of pages5
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume41
Issue number3 A
StatePublished - Mar 1 2002

Fingerprint

transformers
Electric potential
output
Fluorescent lamps
Electrodes
electric potential
Temperature
Electric properties
electrodes
power efficiency
luminaires
radiant flux density
electrical properties
temperature
room temperature

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

@article{1c380693b8d746bba1372746f5758011,
title = "Unipoled disk-type piezoelectric transformers",
abstract = "Unipoled piezoelectric transformers with different input and output area ratios were fabricated. The electrical properties in terms of voltage step-up ratio, output power, efficiency, and temperature rise were measured at various load resistance. The voltage step-up ratio increased proportionally with load resistance. The relative efficiency showed a maximum value of more than 98{\%} in the transformer, which is 23.6 mm in diameter and 1.0 mm in thickness with input/out electrode area ratio of 0.62. With the driving voltage of 35 Vrms, the 8.1 W output power was obtained in the transformer with an input/output electrodes area ratio of 6.47. In such conditions, the temperature rise was only 15°C from room temperature. This transformer, which has approximately ten times higher power density than a rectangular Rosen-type piezoelectric transformer, was successfully applied to operate an 8 W compact fluorescent lamp.",
author = "Philippe Bouchilloux and Kenji Uchino",
year = "2002",
month = "3",
day = "1",
language = "English (US)",
volume = "41",
pages = "1446--1450",
journal = "Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes",
issn = "0021-4922",
publisher = "Japan Society of Applied Physics",
number = "3 A",

}

Unipoled disk-type piezoelectric transformers. / Bouchilloux, Philippe; Uchino, Kenji.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 41, No. 3 A, 01.03.2002, p. 1446-1450.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Unipoled disk-type piezoelectric transformers

AU - Bouchilloux, Philippe

AU - Uchino, Kenji

PY - 2002/3/1

Y1 - 2002/3/1

N2 - Unipoled piezoelectric transformers with different input and output area ratios were fabricated. The electrical properties in terms of voltage step-up ratio, output power, efficiency, and temperature rise were measured at various load resistance. The voltage step-up ratio increased proportionally with load resistance. The relative efficiency showed a maximum value of more than 98% in the transformer, which is 23.6 mm in diameter and 1.0 mm in thickness with input/out electrode area ratio of 0.62. With the driving voltage of 35 Vrms, the 8.1 W output power was obtained in the transformer with an input/output electrodes area ratio of 6.47. In such conditions, the temperature rise was only 15°C from room temperature. This transformer, which has approximately ten times higher power density than a rectangular Rosen-type piezoelectric transformer, was successfully applied to operate an 8 W compact fluorescent lamp.

AB - Unipoled piezoelectric transformers with different input and output area ratios were fabricated. The electrical properties in terms of voltage step-up ratio, output power, efficiency, and temperature rise were measured at various load resistance. The voltage step-up ratio increased proportionally with load resistance. The relative efficiency showed a maximum value of more than 98% in the transformer, which is 23.6 mm in diameter and 1.0 mm in thickness with input/out electrode area ratio of 0.62. With the driving voltage of 35 Vrms, the 8.1 W output power was obtained in the transformer with an input/output electrodes area ratio of 6.47. In such conditions, the temperature rise was only 15°C from room temperature. This transformer, which has approximately ten times higher power density than a rectangular Rosen-type piezoelectric transformer, was successfully applied to operate an 8 W compact fluorescent lamp.

UR - http://www.scopus.com/inward/record.url?scp=0036509165&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036509165&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0036509165

VL - 41

SP - 1446

EP - 1450

JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

SN - 0021-4922

IS - 3 A

ER -