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2003 Fiscal Year Final Research Report Summary

VERY SMALL COIL-LESS ELECTRIC POWER SUPPLIES USING PIEZOELECTRIC CERAMICS FOR MOBILE ELECTRONIC INSTRUMENT

Research Project

Project/Area Number 12355012
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section展開研究
Research Field 電力工学・電気機器工学
Research InstitutionYAMAGATA UNIVERSITY

Principal Investigator

HIROSE Seiji  YAMAGATA UNIVERSITY, FACULTY OF ENGINEERING, PROFESSOR, 工学部, 教授 (70007201)

Co-Investigator(Kenkyū-buntansha) AOYAGI Manabu  MURORAN INSTI.TECH, ASSOCIATE PROF., 工学部, 助教授 (80231786)
SUZUKI Katuyoshi  YAMAGATA UNIVERSITY, FACULTY OF ENGINEERING, PROFESSOR, 工学部, 教授 (60007028)
TOMIKAWA Yoshiro  YAMAGATA UNIVERSITY, FACULTY OF ENGINEERING, PROFESSOR, 工学部, 教授 (80007004)
TAKAHASHI Sadayuki  SHOEI CHEMISTRY, RESEARCHER, 研究員
TAKANO Takehiro  TOHOKU INSTI.TECH., PROFESSOR, 工学部, 教授 (50085411)
Project Period (FY) 2000 – 2003
KeywordsPIEZO-TRANSFORMER / AC ADAPTER / MINIATURIZATION / PIEZO-TRANSDUCER / PIEZO-MATERIAL / LOSS MEASURMENT
Research Abstract

This study aimed to realize the very small AC-DC converter and DC-DC converter by using the piezoelectric transformer. Following terms and results have been obtained through the four years'investigations.
1.Higher electric power density can be achieved by using the higher mode resonance in the piezoelectric transformer. These facts have been found and confirmed.
From these results, the second Radial vibration and the fifth Width Extensional vibration have been selected.
2.Design method for the piezoelectric transformer has been established. In the method, the high power characteristics of the piezoelectric ceramic materials have been adopted, which were measured by us.
3.Second Radial mode piezoelectric transformer has been investigated as a high power density transformer. High efficiency of 95% has been achieved, and the multilayered type transformer has been made.
4.Fifth Width Extensional mode piezoelectric transformer has been investigated as a much higher power density transformer. Also in this transformer, high efficiency of about 90% has been achieved.
5.Losses of the piezoelectric material have been measured separately by the automatic measurement system.
These experimental values of losses can be used to evaluate the transformer efficiency precisely. The measurement system were developed and improved by us.
6.Stable and high efficiency driving and rectifying cicuit have been investigated. In the driving circuit, PLL automatic tracking system has been adopted.

  • Research Products

    (40 results)

All Other

All Publications (40 results)

  • [Publications] S.Hirose, M.Matsumoto, Y.Tomikawa: "HIGH-SPEED REAL TIME MEASUREMENT SYSTEM OF HIGH-POWER PIEZOELECTRIC CHARACTERISTICS"ACTUATOR 2000 (Bremen). 403-406 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 広瀬, 藤田, 田中: "圧電振動子の定常状態・大振幅励振特性の測定法に関する研究"日本音響学会秋季研究発表会. 901-902 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Uchino, S.Hirose: "Loss Mechanisms in Piezoelectrics : How to Measure Different Losses Separately"IEEE TRANSACTIONS on UFFC. 48. 307-321 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 広瀬, 藤田, 浅水, 富川: "大振幅励振時における圧電振動子損失の分離測定"電気学会マイクロマシーン研究会. MM-01. 9-12 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 広瀬, 藤田, 浅水, 富川: "大振幅励振時における圧電振動子損失の分離測定"日本学術振興会弾性波素子技術・第150委員会. 71. 109-112 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 斎藤, 広瀬, 高橋: "圧電セラミックスの幅縦振動を利用した降圧型圧電トランスに関する研究"日本機械学会「電磁力関連ダイナミクス」シンポジウム. 01-251. 697-700 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 浅水, 遠藤, 広瀬: "操作性向上を計った圧電振動子損失の分離測定法"第22回超音波シンポジウム. 22. 91-92 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 佐々木, 遠藤, 広瀬: "ラジアル振動の高次共振を利用する圧電トランスの基礎的検討"第22回超音波シンポジウム. 22. 317-318 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Endow, S.Hirose, et al.: "Piezoelectric Ceramic Transformer Using Radial Second Mode Vibration for Small Coil-less High-efficiency Power Supplies"Proc. of Int. Conf. on New Piezoelectric Materials and High Performance Acoustic Wave Devices. 189-192 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 遠藤, 広瀬, 佐々木: "ラジアル振動の高次共振を利用した圧電セラミックトランスの効率特性"電気学会マイクロマシン・センサシステム研究会. MSS-02. 14-17 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Kanno, T.Endow, S.Hirose: "SEVERAL TYPES OF PIEZOELECTRIC TRANSFORMER FOR SMALL COIL-LESS HIGH-EFFICIENCY POWER SUPPLIES"ACTUATOR 2002 (Bremen). 63-66 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 広瀬, 遠藤, 高橋: "圧電トランスに用いる幅縦振動子のスプリアス解析-ポアソン比σ<0.3の材料の場合-"平成14年度電気関係学会東北支部連合大会. 162 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 菅野, 遠藤, 広瀬: "圧電振動子のハイパワー特性の簡易化について"第23回超音波エレクトロニクスの基礎と応用に関するシンポジウム. 27-28 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 広瀬精二, 遠藤 勉: "圧電トランスのパワー密度と高次モード利用の検討"第23回超音波エレクトロニクスの基礎と応用に関するシンポジウム. 23. 265-266 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 遠藤 勉, 広瀬精二: "高次モード利用圧電トランスの積層化の検討"圧電材料・デバイスシンポジウム2003. 23. 97-98 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Endow, S.Hirose: "Multilayered Piezoelectric Transformers for Small Power Supplies"Jpn.J.Appl.Phys.. 42 Pt.1-9B. 6128-6130 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 遠藤 勉, 広瀬 精二: "圧電振動子のハイパワー励振時における損失の新しい測定法"電子情報通信学会 技術報告. US2003-62. 61-66 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 遠藤勉, 広瀬精二, 菅野朋之: "圧電振動子損失の分離測定と圧電トランス効率評価への適用"超音波シンポジウム. 24-03. 125-126 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 高橋芳邦, 遠藤勉, 広瀬精二: "圧電トランスに用いる幅縦振動子のスプリアス解析"日本音響学会2004年春季研究発表会. 1047-1048 (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Endow, S.Hirose, T.Kanno: "Precise Measurement of Losses in Piezoelectric Transducer and its Application to Evaluation of Piezoelectric Transformer Effciency"Jpn.J.Appl.Phys.. Vol.42. 2976-2981 (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Hirose, M.Matsumoto, Y.Tomikawa, T.Takano: "HIGH-SPEED REAL TIME MEASUREMENT SYSTEM OF HIGH-POWER PIEZOELECTRIC CHARACTERISTICS"ACTUATOR2000(Bremen). 403-406 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Hirose, K.Fujita, M.Tanaka: "Study on Measuring Method of Stable-state Piezoelect ric Transducer Constants under Large Vibration Excitation"2001 Autumn Meeting of Acoust.Soc.Japan. 901-902 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] K.Uchino, S.Hirose: "Loss Mechanisms in Piezoelectrics : How to Measure Different Losses Separately"IEEE TRANSACTIONS on UFFC. Vol.48,No.1. 307-321 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Hirose, K.Fujita, T.Asamizu, Y.Tomikawa: "Measuring Method of Losses in Piezoelectric Transducer under High Vibration Amplitude"Tech.Meeting of IEE Japan MSS-01. 9-12 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Hirose, K.Fujita, T.Asamizu, Y.Tomikawa: "Measuring Method of Losses in Piezoelectric Transducer under High Vibration Amplitude"JSPS 150th Committee Tech.Meeting. 71. 109-112 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Saito, S.Hirose, Y.Takahashi: "Step-down Type High-Power Piezoelectric Transformer Using Width-Extensional Vibration"13th Symp.on Electromagnetics and Dynamics. No.01-251. 697-700 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Asamizu, T.Endow, S.Hirose: "Improved Method for Measuring Losses Separately on Piezoelectric Transducers"Proc.Symp.Ultrason.Electro. Vol.22. 91-92 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Sasaki, T.Endow, S.Hirose: "Fundamental Study on Piezo-electric Transformer Using 2nd-mode Resonance of Radial Vibration."Proc.Symp.Ultrason.Electro. Vol.22. 317-318 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Endow, S.Hirose, T.Sasaki, Y.Tomikawa: "Piezoelectric Ceramic Transformer Using Radial Second Mode Vibration for Small Coil-less High-efficiency Power Supplies"Proc.of Int.Conf.on New Piezoelectric Materials and High Performance Acoust.Wave Devices. 189-192 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Endow, S.Hirose, T.Sasaki: "Efficiency Characteristics of Piezoelectric Ceramic Transformers Using Radial Second Mode Vibration."Tech.Meeting of IEE Japan MSS-02. 14-17 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Endow, S.Hirose, T.Takano: "SEVERAL TYPES OF PIEZOELECTRIC TRANSFORMER FOR SMALL COIL-LESS HIGH-EFFICIENCY POWER SUPPLIES"ACTUATOR 2002(Bremen). 63-66 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Takahashi, T.Endow, S.Hirose: "Sprious Analysis of Width-Extensional Vibration for Piezoelectric Transformer"Tohoku-Section Joint Convention Record of IEIE Japan. 162 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Kanno, T.Endow, S.Hirose: "Improvement of Measuring Procedure for High-Power Characteristics of Piezoelectric Transducer."Proc.Symp.Ultrason.Electron.. Vol.23. 27-28 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Endow, S.Hirose: "Power Density of Piezoelectric Transformer and Consideration of Advantage of Higher Mode Resonance"Proc.Symp.Ultrason.Electron.. Vol.265-266. (2002)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S.Hirose, T.Endow: "Fundamental Study on Layered Piezoelectric Transformers using Higher Mode Resonance"Symp.on Piezoelectric Material and Devices. 97-98 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Endow, S.Hirose: "Multilayered Piezoelectric Transformers for Small Power Supplies"Jpn.Appl.Phys.. Vol.42,Part-1,No.9B. 6128-6130 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Endow, S.Hirose, T.Kanno: "New Measurement Method of Losses in Piezoelectric Transducer under High-power Operation"TECHNICAL REPORT of IEICE Japan. US2003-62. 61-66 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Endow, S.Hirose, T.Kanno: "Precise Measurement of Losses in Piezoelctric Transducer and Its Application to Evaluation of Piezoelectric Transformer Efficiency"Proc.Symp.Ultrason.Electron. Vol.24. 125-126 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Takahashi, T.Endow, S.Hirose: "Spurious Analysis of Transducer using Width-Extensional Vibration for Piezoelectric Transformer"2004 Spring Meeting of Acoust.Soc.Jpn. 1047-1048 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T.Endow, S.Hirose, T.Kanno: "Precise Measurement of Losses in Piezoelectric Transducer and Its Application to Evaluation of Piezoelectric Transformer Effciency"Jpn.J.Appl.Phys.. Vol.43,No.5B. 2976-2981 (2004)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2005-04-19  

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