A Single-Stage Rectifier-Less Boost Converter Circuit for Piezoelectric Energy Harvesting Systems

Edla, Mahesh; Lim, Yee Yan; Deguchi, Masahiro; Padilla, Ricardo Vásquez

doi:10.1109/tec.2021.3103879

Cited by 15 publications

(7 citation statements)

References 44 publications

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“…Many scientific papers have studied power converters, 1–22 which include different circuit topologies, soft switching control methods, and transformer optimization methods. However, the output powers of power converters in these scientific papers were not large, and there have been no in-depth studies on the input voltage range.…”

Section: Contributions Of Previous Workmentioning

confidence: 99%

“…This strategy could provide new concepts for design. Edla et al 3 synthesized several voltage regulation methods and proposed a boost converter that could extract energy from environmental vibrations. The simulation results showed that the proposed power converter could increase the low-frequency alternating current (AC) voltage from 0.5 V to a direct current (DC) voltage of 5.1 V. The experimental results showed that the maximum output power was 281.1 μW.…”

Section: Introductionmentioning

confidence: 99%

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Simulation optimal and design of 3-kW DC-DC converter for pure electric vehicles

Sun,

Zhou,

Chiu

et al. 2023

Advances in Mechanical Engineering

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There are significant differences between pure electric vehicles and traditional fuel vehicles. High-power converters are required to meet the increased energy consumption requirements of loads within pure electric vehicles. A high-power integrated DC-DC converter is designed to meet the requirements of pure electric vehicles. First, the characteristics of LLC resonant converters are analyzed, and a fuzzy adaptive PID frequency conversion phase-shift soft switching control strategy is proposed. Second, the fuzzy controller is designed based on the MATLAB toolbox based on the characteristics of electric vehicle converters. Then, in order to further improve the efficiency of the converter, a planar transformer is proposed and optimized. It is found that with the increase in the switching frequency, the loss is smaller, which is more conducive to improving the efficiency. Simulation results show that zero-voltage switching and zero-current switching can be realized by using the proposed control strategy, and experimental results show that the proposed strategy is significantly more efficient under non-heavy-load conditions. The minimum and maximum efficiency values are 92% and 97.38%, respectively. The high-power converter ensures the normal operation of the load of pure electric vehicles. This work provides a method for developing high-power DC-DC converters and improving efficiency.

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Section: Contributions Of Previous Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Simulation optimal and design of 3-kW DC-DC converter for pure electric vehicles

Sun,

Zhou,

Chiu

et al. 2023

Advances in Mechanical Engineering

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“…Another approach by Shareef et al [22,23] proposed a rectifier-less AD-DC conversion by utilizing the synchronous inductor method and cold start-up characteristic to obtain efficient performance (only 0.65 mV ac was required for harvesting output of 254 µW). This approach, however, was inefficient because it also employed additional components, such as three capacitors, one digital logic controller, a polarity detector, three PGs, and a millihenry spectrum of the inductor.…”

Section: Introductionmentioning

confidence: 99%

A Self-Powered VDJT AC–DC Conversion Circuit for Piezoelectric Energy Harvesting Systems

Kamran

Edla²,

Thabet

et al. 2023

Designs

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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.

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“…Numerous AC-DC rectification circuits for PEH systems have been developed and reported in the literature [6][7][8][9][10][11][12][13][14][15][16][17][18]. The simplest one is a conventional full-bridge rectifier (FBR) circuit.…”

Section: Introductionmentioning

confidence: 99%

Non-Linear Switching Circuit for Active Voltage Rectification and Ripples Reduction of Piezoelectric Energy Harvesters

et al. 2022

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This paper describes an improved non-linear switching circuit (INLSC) for active rectification of voltage and reduction of ripples in the voltage waveform for the piezoelectric energy harvesting (PEH) system. The proposed converter controls the alternating current (AC) generated by the piezoelectric device (PD) under mechanical vibration. The proposed circuit combines the boost and buck-boost processes through a switching process, which functions in both positive and negative cycles. In addition, it controls the voltage and frequency of the load capacitor. In this process, the passive components in the circuit are energised by being short with the AC voltage using switching signals, which facilitates the active rectification of ultra-low AC voltage. Design considerations, theoretical analysis, simulations and experimental results are presented. It was shown that the circuit was able to control the switching signal and to convert low AC voltage (0.44 Vi) to high direct current (DC) voltage (6.5 Vdc) while achieving an output power of 469 µW which outperforms the existing similar circuits and synchronous rectifier circuit. The ripples in the rectified voltage were also comparatively less. Application-wise, the proposed circuit could power a manually connected 7-segments display, commonly used for traffic applications.

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A Single-Stage Rectifier-Less Boost Converter Circuit for Piezoelectric Energy Harvesting Systems

Cited by 15 publications

References 44 publications

Simulation optimal and design of 3-kW DC-DC converter for pure electric vehicles

Simulation optimal and design of 3-kW DC-DC converter for pure electric vehicles

A Self-Powered VDJT AC–DC Conversion Circuit for Piezoelectric Energy Harvesting Systems

Non-Linear Switching Circuit for Active Voltage Rectification and Ripples Reduction of Piezoelectric Energy Harvesters

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