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20 October 2009 Wireless energy transmission through a sealed wall using the acoustic-electric interaction of piezoelectric ceramics
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Proceedings Volume 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering; 74936N (2009) https://doi.org/10.1117/12.840098
Event: Second International Conference on Smart Materials and Nanotechnology in Engineering, 2009, Weihai, China
Abstract
We propose a system to transmit and store electric energy by using transmitting element, a chargeable battery, and a rectifier together with a dc-dc converter to connect the two components as an integrated system. The transmitting element is modeled by two piezoelectric transducers. One is as the driving transducer for generating acoustic wave; the other is as the receiving transducer for converting the acoustic energy into electric energy. A dc-dc converter employed in the storage circuit is to match the optimal output voltage of the receiving transducer with the battery voltage for efficient charging. A synchronized switch harvesting on inductor (SSHI) in parallel with the receiving transducer is introduced to artificially extend the closed circuit interval of the rectifier. This analysis extends a previous one by considering that influence of wall thickness which always exists in the application. The characteristics of the energy-transmitting element are studied. Performance of the energy-transmitting element is optimized by synthetic adjusting parameters of the element, and carefully choosing input frequency of electric source.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hongping Hu, Huan Xue, Yuantai Hu, and Xuedong Chen "Wireless energy transmission through a sealed wall using the acoustic-electric interaction of piezoelectric ceramics", Proc. SPIE 7493, Second International Conference on Smart Materials and Nanotechnology in Engineering, 74936N (20 October 2009); https://doi.org/10.1117/12.840098
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