scholarly journals Bandwidth Broadening of MEMS Vibration Energy Harvesters by Voltage-boost Rectifier Circuit

2021 ◽  
Vol 34 (x) ◽  
pp. 1
Author(s):  
Yukiya Tohyama ◽  
Hiroaki Honma ◽  
Hiroshi Toshiyoshi ◽  
Daisuke Yamane
Keyword(s):  
Vibration Energy ◽  
Rectifier Circuit ◽  
Energy Harvesters ◽  
Boost Rectifier ◽  
Bandwidth Broadening

Resin-bonded NdFeB micromagnets for integration into electromagnetic vibration energy harvesters

2013 ◽  
Vol 14 (4) ◽  
pp. 283-287 ◽  
Author(s):  
Pei-hong Wang ◽  
Kai Tao ◽  
Zhuo-qing Yang ◽  
Gui-fu Ding
Keyword(s):  
Vibration Energy ◽  
Energy Harvesters ◽  
Electromagnetic Vibration

scholarly journals Shock reliability enhancement for MEMS vibration energy harvesters with nonlinear air damping as a soft stopper

2017 ◽  
Vol 27 (10) ◽  
pp. 104003 ◽  
Author(s):  
Shao-Tuan Chen ◽  
Sijun Du ◽  
Emmanuelle Arroyo ◽  
Yu Jia ◽  
Ashwin Seshia
Keyword(s):  
Vibration Energy ◽  
Energy Harvesters ◽  
Air Damping ◽  
Reliability Enhancement

scholarly journals Enhanced low-frequency vibration energy harvesting with inertial amplifiers

2021 ◽  
pp. 1045389X2110322
Author(s):  
Sondipon Adhikari ◽  
Arnab Banerjee
Keyword(s):  
Low Frequency ◽  
Vibration Energy ◽  
Vibration Energy Harvesting ◽  
Micro Scale ◽  
Energy Harvesters ◽  
Low Frequency Vibration ◽  
Different Types ◽  
Mechanical Approach ◽  
Ambient Excitation ◽  
Piezoelectric Vibration

Piezoelectric vibration energy harvesters have demonstrated the potential for sustainable energy generation from diverse ambient sources in the context of low-powered micro-scale systems. However, challenges remain concerning harvesting more power from low-frequency input excitations and broadband random excitations. To address this, here we propose a purely mechanical approach by employing inertial amplifiers with cantilever piezoelectric vibration energy harvesters. The proposed mechanism can achieve inertial amplification amounting to orders of magnitude under certain conditions. Harmonic, as well as broadband random excitations, are considered. Two types of harvesting circuits, namely, without and with an inductor, have been employed. We explicitly demonstrate how different parameters describing the inertial amplifiers should be optimally tuned to maximise harvested power under different types of excitations and circuit configurations. It is possible to harvest five times more power at a 50% lower frequency when the ambient excitation is harmonic. Under random broadband ambient excitations, it is possible to harvest 10 times more power with optimally selected parameters.

On the minimum coupling required for maximum theoretical power capture from vibration energy harvesters

2012 ◽  
Vol 101 (10) ◽  
pp. 103904 ◽  
Author(s):  
D. Kim ◽  
N. N. Hewa-Kasakarage ◽  
S. Yoon ◽  
N. A. Hall
Keyword(s):  
Vibration Energy ◽  
Energy Harvesters ◽  
Power Capture
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