发明名称 |
Piezo-electricity generation device |
摘要 |
A piezo-electricity generation device without an external power supply unit includes a rectifying means which rectifies an AC voltage generated by the vibration of at least one piezo-electric plate. An accumulating means accumulates an electric charge outputted through the rectifying means. A voltage setting means provides a prespecified voltage. A transmission means transmits substantially all of the electric charge accumulated in the accumulating means to a signal output means when the output voltage of the accumulating means exceeds the prespecified voltage set by the voltage setting means. A timing setting means may also or alternatively be provided for setting a prespecified timing such that the transmission means transmits substantially all of the electric charge stored in the accumulating means at the prespecified timing set by said timing setting means.
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申请公布号 |
US5801475(A) |
申请公布日期 |
1998.09.01 |
申请号 |
US19970812070 |
申请日期 |
1997.03.06 |
申请人 |
MITSUTERU KIMURA;RICOH SEIKI COMPANY, LTD. |
发明人 |
KIMURA, MITSUTERU |
分类号 |
G01P13/00;G01P15/09;G01P15/18;H01L41/113;(IPC1-7):H01L41/08 |
主分类号 |
G01P13/00 |
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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