The Experimental Study of an Array of Piezoelectric Energy Oscillators Attached to the Synchronized Electric Charge Extraction Interface Circuit

• Main Authors: Jeng-Ting Lin, 林政廷
• Other Authors: Yi-Chung Shu
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/5a5zh9

碩士 === 國立臺灣大學 === 應用力學研究所 === 107 === The dissertation has developed an experimental setup for studying energy harvesting extracted from an array of piezoelectric oscillators attached to an SECE (synchronized electric charge extraction) interface circuit. The proposed device consists of 4 piezoelectric oscillators connected in parallel, in series or in mixed arrangements. Each of them is chosen to be in the range of middle of electromechanical coupling since harvested power based on the SECE technique is higher than that based on the standard interface circuit within this range. The experimental results agree quite well with the theoretical predictions. They confirm the superiority of the array based on the SECE circuit over the standard circuit. In addition, the load-independent property is observed to be retained in the array system. Finally, the overall bandwidth of an SECE array is also improved in comparison with that attached to the standard circuit.