Piezoelectric conversion and energy harvesting enhancement by initial energy injection
作者： Mickaël Lallart , Daniel Guyomar
DOI: 10.1063/1.3462304
关键词: Resonance (particle physics) 、 Reduction (complexity) 、 Process engineering 、 Energy (signal processing) 、 Energy harvesting 、 Energy conversion efficiency 、 Piezoelectricity 、 Energy flow 、 Energy transformation 、 Materials science
摘要: This letter reports a concept for enhancing the conversion abilities of piezoelectric materials based on initial energy injection, as well its application to harvesting. Unlike conventional approaches, this considers pulsed bidirectional flow between source and storage stages. The presented technique shows an “energy resonance” effect that can bring up gain in terms harvested 40 (20 using typical components) compared standard harvesting methods. Such system thus allows significant reduction active required conception autonomous devices supplied by ambient energy.
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