AC–DC power conversion DC–DC power conversion joule thief circuit voltage doubler rectifier circuit piezoelectric material energy harvesting rectifier Electronics, sensors and digital hardware Environmentally sustainable energy activities
A comprehensive model for micro-powered piezoelectric generator (PG), analysis of operation, and control of voltage doubler joule thief (VDJT) circuit to find the piezoelectric devices (PD’s) optimum functioning points are discussed in the present article. The proposed model demonstrates the power dependence of the PG on mechanical excitation, frequency, and acceleration, as well as outlines the load behaviour for optimal operation. The proposed VDJT circuit integrates the combination of voltage doubler (VD) and joule thief circuit, whereas the VD circuit works in Stage 1 for AC (alternating current)–DC (direct current) conversion, while a joule thief circuit works in Stage 2 for DC–DC conversion. The proposed circuit functions as an efficient power converter, which converts power from AC–DC and boosts the voltage from low to high without employing any additional electronic components and generating duty cycles. The electrical nature of the input (i.e., PD) of a VDJT circuit is in perfect arrangement with the investigated optimisation needs when using the proposed control circuit. The effectiveness of the proposed VDJT circuit is examined in terms of both simulation and experiment, and the results are presented. The proposed circuit’s performance was validated with available results of power electronics interfaces in the literature. The proposed circuit’s flexibility and controllability can be used for various applications, including mobile battery charging and power harvesting.
Details
Title
A Self-Powered VDJT AC–DC Conversion Circuit for Piezoelectric Energy Harvesting Systems
Creators
Muhammad Kamran - Southern Cross University
Mahesh Edla - MYRA Corporate
Ahmed Mostafa Thabet - Southern Cross University
Deguchi Mikio - National Institute of Technology, Niihama College
Vinh Bui - Southern Cross University
Publication Details
Designs, Vol.7(4), 94
Publisher
MDPI
Grant note
The study was supported by Southern Cross University.