Optimized piezoelectric energy harvesting circuit using step-down converter in discontinuous conduction mode

2003 ◽  
Vol 18 (2) ◽  
pp. 696-703 ◽  
Author(s):  
G.K. Ottman ◽  
H.F. Hofmann ◽  
G.A. Lesieutre
Keyword(s):  
Energy Harvesting ◽  
Piezoelectric Energy Harvesting ◽  
Discontinuous Conduction Mode ◽  
Piezoelectric Energy ◽  
Step Down ◽  
Conduction Mode

Design and Analysis of AMSCC for Piezoelectric Energy Harvesting

2017 ◽  
Vol 26 (05) ◽  
pp. 1750083 ◽  
Author(s):  
Yuen-Haw Chang ◽  
Chun-Hung Wang
Keyword(s):  
Energy Harvesting ◽  
Piezoelectric Energy Harvesting ◽  
Analysis And Design ◽  
Piezoelectric Energy ◽  
Power Part ◽  
Bridge Rectifier ◽  
Step Down ◽  
Switched Capacitor Converter ◽  
Output Capacitor ◽  
Down Conversion

This paper presents the analysis, design and implementation of a closed-loop adaptive multistage switched-capacitor converter (AMSCC) for step-down conversion applied to piezoelectric energy harvesting. Its power part consists of two cascaded sub-circuits: (i) Front: a bridge rectifier with a filter capacitor ([Formula: see text]), and (ii) Core: five-stage serial-parallel SC step-down converter with an output capacitor ([Formula: see text]). This rectifier converts piezoelectric AC source into DC type, and [Formula: see text] captures/stores the energy to build a supply [Formula: see text], and then the serial-parallel SCC transforms [Formula: see text] into five different levels as: [Formula: see text]/5, [Formula: see text]/4, [Formula: see text]/3, [Formula: see text]/2, or [Formula: see text] to charge the battery load. By using the proposed phase generator, a proper level can be manipulated adaptively according to the recent supply and battery voltages for realizing an adaptive multistage charging procedure. Such an adaptive multistage operation is helpful not only to protect the usage of battery, but also to handle the supply variation of piezoelectric device. Some theoretical analysis and design include: formulation, steady-state analysis, stability, capacitance selection, and multistage output response/power. Finally, the performance of AMSCC scheme is simulated and verified experimentally on the implemented prototype circuit, and the results are illustrated to show the efficacy of this scheme.

Investigation of efficient piezoelectric energy harvesting from impulsive force

2020 ◽  
Vol 59 (SP) ◽  
pp. SPPD04
Author(s):  
S. Aphayvong ◽  
T. Yoshimura ◽  
S. Murakami ◽  
K. Kanda ◽  
N. Fujimura
Keyword(s):  
Energy Harvesting ◽  
Piezoelectric Energy Harvesting ◽  
Impulsive Force ◽  
Piezoelectric Energy

scholarly journals Piezoelectric Energy Harvesting Solutions: A Review

Sensors ◽  
2020 ◽  
Vol 20 (12) ◽  
pp. 3512 ◽  
Author(s):  
Corina Covaci ◽  
Aurel Gontean
Keyword(s):  
Energy Harvesting ◽  
Piezoelectric Effect ◽  
Piezoelectric Transducers ◽  
Piezoelectric Energy Harvesting ◽  
Piezoelectric Energy ◽  
Direct Piezoelectric Effect ◽  
Harvesting Technique ◽  
Different Shapes ◽  
Piezoelectric Devices ◽  
Review Current

The goal of this paper is to review current methods of energy harvesting, while focusing on piezoelectric energy harvesting. The piezoelectric energy harvesting technique is based on the materials’ property of generating an electric field when a mechanical force is applied. This phenomenon is known as the direct piezoelectric effect. Piezoelectric transducers can be of different shapes and materials, making them suitable for a multitude of applications. To optimize the use of piezoelectric devices in applications, a model is needed to observe the behavior in the time and frequency domain. In addition to different aspects of piezoelectric modeling, this paper also presents several circuits used to maximize the energy harvested.

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