发明名称 |
Dual-mode piezoelectric/magnetic vibrational energy harvester |
摘要 |
Embodiments of a vibrational energy harvester are provided. A vibrational energy harvester can include a translator layer sandwiched between two stator layers. The translator layer can include a plate having an array of magnets and two or more piezoelectric patches coupled to a tether beam attached to the plate. The stator layers can have a printed circuit board with multilayer electrical windings situated in a housing. In operation, vibration of the housing can result in bending of the piezoelectric patches coupled to the tether beam. This bending simultaneously results in a relative displacement of the translator, which causes a voltage potential in the piezoelectric patches, and a relative velocity between the translator and the stators, which induces a voltage potential in the stator coils. These voltage potentials generate an AC power, which can be converted to DC power through a rectification circuit incorporating passive and active conversion.
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申请公布号 |
US8354778(B2) |
申请公布日期 |
2013.01.15 |
申请号 |
US20080672792 |
申请日期 |
2008.09.18 |
申请人 |
UNIVERSITY OF FLORIDA RESEARCH FOUNDATION, INC.;ARNOLD DAVID PATRICK;NISHIDA TOSHIKAZU |
发明人 |
ARNOLD DAVID PATRICK;NISHIDA TOSHIKAZU |
分类号 |
H01L41/08;H01L41/113;H02N2/18 |
主分类号 |
H01L41/08 |
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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