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A hybrid generator for two-axis vibration energy scavenging applications
박종철(Jong Cheol Park),김민수(Min Soo Kim),홍준혁(Jun Heok Hong),나큰돌(Keun Dol Na),김형주(Hyung Joo Kim),박재영(Jae Yeong Park) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7
A hybrid vibration energy harvester was investigated to scavenge power from two axis vibration source. In order to convert two-axis vibration to electrical power, we developed beam-type vibratory energy harvester with inertial mass which had a asymmetric and curved shape. Furthermore, it was designed by combining the piezoelectric and electromagnetic transducer to increase harvested electrical power. The piezoelectric bender and the NdFeB magnet was utilized as a spring beam and and inertial mass. The copper wire-wounded coil was formed and fixed upon the NdFeB magnet. From above structure, the theoretical analysis for several tens ㎐ of vibration was investigated.