发明名称 |
Active piezoelectric energy harvester with embedded variable capacitance layer and method of manufacturing the same |
摘要 |
Provided is an active piezoelectric energy harvester, which can control a direct current voltage applied to an embedded variable capacitance layer to precisely adjust a resonance frequency in real time, and thus achieve a simpler structure and a smaller size compared to a conventional one that adjusts the resonance frequency using a separate variable capacitor provided outside. Further, the active piezoelectric energy harvester can precisely adjust the resonance frequency even when the frequency of vibration varies over time as in a real natural vibration environment or when it is degraded to undergo a variation in its own resonance frequency, and thus can continuously maintain optimal energy conversion characteristics.
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申请公布号 |
US8471439(B2) |
申请公布日期 |
2013.06.25 |
申请号 |
US20100899499 |
申请日期 |
2010.10.06 |
申请人 |
MOON SEUNG EON;LEE SUNG Q;LEE SANG KYUN;YANG YIL SUK;PARK KANG HO;KIM JONG DAE;ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE |
发明人 |
MOON SEUNG EON;LEE SUNG Q;LEE SANG KYUN;YANG YIL SUK;PARK KANG HO;KIM JONG DAE |
分类号 |
H02N2/18 |
主分类号 |
H02N2/18 |
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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