发明名称 |
Thickness mode piezoelectric transducer with resonant drive circuit |
摘要 |
A thickness mode piezoelectric transducer is provided that has masses attached to opposing faces of the transformer. The end-masses increase the thickness of the transformer and decrease its resonant frequency. The end-masses increase the magnitude of resonant vibrations in the output layer(s) as well as the mechanical Q of the device to provide a low profile piezoelectric transformer with high power density. Each of the input and output portions is resonant tank circuit having a electrical resonant frequency substantially matching the mechanical resonance whereby the amplitude of the mechanical vibrations are increased. These mechanical vibrations are used in conjunction with a mechanical amplifier or horn for use of the device as a vibrational transducer.
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申请公布号 |
US2003048037(A1) |
申请公布日期 |
2003.03.13 |
申请号 |
US20010951326 |
申请日期 |
2001.09.11 |
申请人 |
BOYD CLARK D. |
发明人 |
BOYD CLARK D. |
分类号 |
H01L41/107;H02M7/48;(IPC1-7):H01L41/04 |
主分类号 |
H01L41/107 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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