An Improved Self-Powered H-Bridge Circuit for Voltage Rectification of Piezoelectric Energy Harvesting System

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

doi:10.1109/jeds.2020.3025554

Cited by 25 publications

(40 citation statements)

References 48 publications

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“…The simplest way to convert AC into DC is by using an full-wave bridge rectifier (FBR) circuit [7], [8], [9], [10], [11], [12], [13], [14], [15]. This circuit suffers from various shortcomings, despite its simplicity and popularity.…”

Section: Introductionmentioning

confidence: 99%

“…A recent study by the authors (Edla et al [12]) modified the abovementioned MOSFET bridge rectifier circuit to a self-powered H-Bridge circuit. The proposed circuit was successfully applied to ultra-low voltage and high frequency application.…”

Section: Introductionmentioning

confidence: 99%

“…This is attempted in this study with the proposition of a self-powered dual-stage H-Bridge (DSHBR) circuit. This proposed circuit is an improved version of the selfpowered H-Bridge circuit, previously proposed by the authors [12], [13]. The key difference between the previous H-Bridge circuit and the currently proposed circuit is that the H-Bridge circuit is single stage, which only converts AC-DC, while the proposed DSHBR includes two stages (Stage 1: AC-DC conversion with reduced conversion/rectification losses, Stage 2: DC-DC conversion with rectified voltage stabilisation).…”

Section: Introductionmentioning

confidence: 99%

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Design and Application of a Self-Powered Dual-Stage Circuit for Piezoelectric Energy Harvesting Systems

et al. 2021

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This paper describes the design and practical application of a dual-stage H-Bridge (DSHBR) circuit to reduce the rectification losses and mitigate ripples in piezoelectric energy harvesting. The proposed DSHBR circuit integrates both AC-DC and DC-DC conversion processes using bidirectional switches and a step-up DC-DC converter, which applies to both positive and negative half cycles. One additional feature is that it does not require external power to turn on the bidirectional switches (Vth < 0.3 V). Such feature facilitates active rectification at very low AC voltages (Vac < 0.5) generated by the piezoelectric device (PD). To validate the performance of the proposed circuit, a series of experimental tests were conducted. Firstly, the performance of circuit on rectifying the PD output was investigated using a shaker to generate high and low frequency excitations. Next, real-life testing was conducted with human arm motion as the source of excitation. Then, the ability of the entire system to charge solar batteries was investigated. The outcome shows that the DSHBR circuit prominently increased the rectified voltage and the output power while stabilising the DC voltage when compared with the conventional H-Bridge circuit.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Design and Application of a Self-Powered Dual-Stage Circuit for Piezoelectric Energy Harvesting Systems

et al. 2021

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“…To support the use of PFEH in a wider range of operating conditions, various methods and techniques such as (a) fluid-mechanics interface optimization [ 6 ], (b) acoustic impedance matching [ 7 , 8 ], (c) circuit techniques that enable efficient rectification at low input voltage [ 9 , 18 , 19 ], and (d) circuit techniques to increase power generation can be used to enhance the performance of the PFEH [ 20 , 21 , 22 ]. The focus of this work is to propose and evaluate a self-powered wireless pressure sensor (SP-WPS) considering pressure fluctuations with amplitudes less than 1 bar at frequencies less than 300

.…”

Section: Introductionmentioning

confidence: 99%

Self-Powered Wireless Sensor Using a Pressure Fluctuation Energy Harvester

Aranda

Bader

Oelmann

2021

Sensors

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Condition monitoring devices in hydraulic systems that use batteries or require wired infrastructure have drawbacks that affect their installation, maintenance costs, and deployment flexibility. Energy harvesting technologies can serve as an alternative power supply for system loads, eliminating batteries and wiring requirements. Despite the interest in pressure fluctuation energy harvesters, few studies consider end-to-end implementations, especially for cases with low-amplitude pressure fluctuations. This generates a research gap regarding the practical amount of energy available to the load under these conditions, as well as interface circuit requirements and techniques for efficient energy conversion. In this paper, we present a self-powered sensor that integrates an energy harvester and a wireless sensing system. The energy harvester converts pressure fluctuations in hydraulic systems into electrical energy using an acoustic resonator, a piezoelectric stack, and an interface circuit. The prototype wireless sensor consists of an industrial pressure sensor and a low-power Bluetooth System-on-chip that samples and wirelessly transmits pressure data. We present a subsystem analysis and a full system implementation that considers hydraulic systems with pressure fluctuation amplitudes of less than 1 bar and frequencies of less than 300 Hz. The study examines the frequency response of the energy harvester, the performance of the interface circuit, and the advantages of using an active power improvement unit adapted for piezoelectric stacks. We show that the interface circuit used improves the performance of the energy harvester compared to previous similar studies, showing more power generation compared to the standard interface. Experimental measurements show that the self-powered sensor system can start up by harvesting energy from pressure fluctuations with amplitudes starting at 0.2 bar at 200 Hz. It can also sample and transmit sensor data at a rate of 100 Hz at 0.7 bar at 200 Hz. The system is implemented with off-the-shelf circuits.

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“…It would reduce the power efficiency, and is essential in some low-voltage applications. Fortunately, the IR drop of the diodes can be reduced by active rectifiers [5], [6], [7]. Some optimized interface circuits have been proposed to reduce the energy-loss by charging or discharging CP more quickly.…”

Section: Introductionmentioning

confidence: 99%

An Integrated Piezoelectric Energy Harvesting Interface Circuit with Adaptive S3BF Control

Wang

Chen

et al. 2021

2021 IEEE International Symposium on Circuits and Systems (ISCAS)

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To increase the energy extraction capability and thus improve the power efficiency, it is critical to reduce the energy loss of interface circuit in the energy harvesting (EH) system. The synchronized multiple bias-flip (SMBF) control has been proposed and proved to be highly effective to increase the output power in piezoelectric EH systems. However, many existing designs based on bias-flip suffer from the limitations in real application as the external control or supply are required. Moreover, the control algorithm is often only suitable for a designated transducer and inductor. In this paper, an integrated piezoelectric EH interface circuit with synchronized triple biasflip (S3BF) has been proposed to flip the voltage across the parasitic capacitor of piezoelectric transducer during the zerocrossing. Meanwhile, the adaptive control of the flipping signal has also been adopted to meet the requirement of different configurations of transducers and inductors. The proposed interface circuit has been designed in 0.18-μm CMOS technology. Without any external control circuit or power supply, it can achieve cold start-up when the external inductances vary from 33 μH to 500 μH. When the external inductance is 50 μH, the simulated flip efficiency is 87.2 %, and the maximum output power is 17.4 μW, which is 3.4 times of the full-bridge rectifier.

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An Improved Self-Powered H-Bridge Circuit for Voltage Rectification of Piezoelectric Energy Harvesting System

Cited by 25 publications

References 48 publications

Design and Application of a Self-Powered Dual-Stage Circuit for Piezoelectric Energy Harvesting Systems

Design and Application of a Self-Powered Dual-Stage Circuit for Piezoelectric Energy Harvesting Systems

Self-Powered Wireless Sensor Using a Pressure Fluctuation Energy Harvester

An Integrated Piezoelectric Energy Harvesting Interface Circuit with Adaptive S3BF Control

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