A series-SSHI-Phi interface circuit for piezoelectric energy harvesting with 163% improvement in extracted power at off-resonance

2016 ◽  
Author(s):  
Chi-Huan Chen ◽  
Hung-Chen Chen ◽  
Yu-Shyang Huang ◽  
Ping-Hsuan Hsieh ◽  
Ping-Hsien Wu ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Piezoelectric Energy Harvesting ◽  
Interface Circuit ◽  
Piezoelectric Energy ◽  
Extracted Power

scholarly journals Study of a Low-Power-Consumption Piezoelectric Energy Harvesting Circuit Based on Synchronized Switching Technology

Energies ◽  
2019 ◽  
Vol 12 (16) ◽  
pp. 3166
Author(s):  
Jianfeng Hong ◽  
Fu Chen ◽  
Ming He ◽  
Sheng Wang ◽  
Wenxiang Chen ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Theoretical Analysis ◽  
Power Consumption ◽  
Low Power ◽  
Impedance Matching ◽  
Maximum Energy ◽  
Low Power Consumption ◽  
Piezoelectric Energy Harvesting ◽  
Interface Circuit ◽  
Piezoelectric Energy

This paper presents a study of a piezoelectric energy harvesting circuit based on low-power-consumption synchronized switch technology. The proposed circuit includes a parallel synchronized switch harvesting on inductor interface circuit (P-SSHI) and a step-down DC-DC converter. The synchronized switch technology is applied to increase the conversion efficiency of the circuit. The DC-DC converter is used to accomplish the impedance matching for different loads. A low-power-consumption microcontroller and discrete components are used to build the P-SSHI interface circuit. The study starts with theoretical analysis and simulations of the P-SSHI interface circuit. Simulations and experiments were conducted to validate the theoretical analysis. The experimental results show that the maximum energy harvested by the system with a P-SSHI interface circuit is 231 μW, which is 2.89 times that of a system without the P-SSHI scheme. The power consumption of the P-SSHI interface circuit can be as low as 10.6 μW.

scholarly journals A Multi-Beam Shared-Inductor Reconfigurable Voltage/SECE Mode Piezoelectric Energy Harvesting Interface Circuit

2019 ◽  
Vol 13 (6) ◽  
pp. 1277-1287
Author(s):  
Miao Meng ◽  
Dixiong Wang ◽  
Binh Duc Truong ◽  
Susan Trolier-McKinstry ◽  
Shad Roundy ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Piezoelectric Energy Harvesting ◽  
Interface Circuit ◽  
Piezoelectric Energy
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