发明名称 |
Multi-mode adjustable piezoelectric transformer |
摘要 |
A type of piezoelectric transformer (PT) which vibrates in length extensional mode is provided. The piezoelectric transformer (PT) has a piezoelectric substrate which has a first dimension, a second dimension and a third dimension with the first dimension being longest and the third dimension being shortest. The substrate has two polarization directions parallel to the first dimension near two terminals of the first dimension and at least two opposite polarization directions on a central portion of the substrate transversely to the first dimension. The substrate further has at least two electrodes on a portion horizontal to the first dimension. Comparing with traditional piezoelectric transformers, the new one can solve the polarization difficulties and reduce audio noise output without sacrificing the electrical properties or even have better voltage transformation characteristics.
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申请公布号 |
US5504384(A) |
申请公布日期 |
1996.04.02 |
申请号 |
US19940343352 |
申请日期 |
1994.11.21 |
申请人 |
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE |
发明人 |
LEE, YU-LIN;CHENG, SYH-YUH;CHEN, YUN-TIEN;LIAO, SHU-FEN;YEH, WEN-CHIN |
分类号 |
H01L41/107;(IPC1-7):H01L41/047;H01L41/08 |
主分类号 |
H01L41/107 |
代理机构 |
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主权项 |
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