会议论文详细信息
15th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications
Nonlinear electromagnetic energy harvesters fabricated by rigid-flex printed circuit board technology
物理学;能源学
Chiu, Yi^1 ; Hong, Hao-Chiao^1 ; Hsu, Wei-Hung^2
Department of Electrical and Computer Engineering, National Chiao Tung University, Hsin Chu, Taiwan^1
Green Energy and Environment Research Laboratories, Industrial Technology Research Institute, Hsin Chu, Taiwan^2
关键词: Effective bandwidth;    Flexible polyimide;    Hardening effects;    Hysteresis effect;    Maximum output power;    Mechanical springs;    Pcb technologies;    Printed circuit board technology;   
Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/660/1/012083/pdf
DOI  :  10.1088/1742-6596/660/1/012083
来源: IOP
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【 摘 要 】

In this paper, a wideband electromagnetic energy harvester designed and fabricated by commercial rigid-flex PCB technology is demonstrated. The rigid FR-4 boards are used for mechanical frames and coil winding whereas the flexible polyimide film is used for mechanical springs and mass platforms. The total dimension of the device is 20 × 20 × 2 mm3. The internal coil resistance is 15 Ω. In vibration tests, nonlinearity can be observed even at 0.1 g vibration level due to the spring hardening effect. The peak frequency was increased as the vibration level increased. The effective bandwidth was increased from 6 Hz at 0.1 g to 21 Hz at 0.5 g and 27 Hz at 1 g, respectivel, due to the hysteresis effect. For a matched load and 1 g vibration at 240 Hz, the maximum output power is 24.5 nW, corresponding to a power density of 31 nW/cm3.

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