• 제목/요약/키워드: effective electromechenical coupling factor

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$900^{\circ}C$ 저온에서 소결된 깅압용 적층 압전 변압기의 전기적 특성 (Electrical properties of Step -Down Multilayer Piezoelectric transformer sintered at $900^{\circ}C$ Low Temperature)

  • 이갑수;류주현;김인성;송재성
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2010년도 하계학술대회 논문집
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    • pp.16-16
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    • 2010

  • The multilayer piezoelectric transformer was manufactured using $Pb(Zn_{1/2}W_{1/2})O_3-Pb(Mn_{1/3}Nb_{2/3})O_3-Pb(Zr_{0.48}Ti_{0.52})O_3$ (abbreviated as PZW-PMN-PZT) ceramics and their electrical properties were investigated. The $k_{eff}$ of the input and the output calculated from the resonant and anti-resonant frequencies were 0.403 and 0.233, respectively. The voltage step-up ratio showed the maximum value in the vicinity of 81kHz. The multilayer piezoelectric transformer showed the temperature rise of about $36^{\circ}C$ at the output power of 12w.

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