High efficiency CMOS rectifier for energy harvesting

Wahab, Norfishah Ab; Salleh, Mohd Khairul Mohd; Othman, Norinsan Kamil; Hidayat, Nabil M.

doi:10.1109/ieacon.2016.8067367

Cited by 3 publications

(5 citation statements)

References 7 publications

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“…The rest of the blocks were designed with 3.3 V MOSFETs, since they need to operate in a lower voltage domain. [20], a switch, SW2, that impedes harvesting when the piezoelectric element operates as a sensor, and the SW2 control block. In this way, the loading effect from the storage capacitor is avoided.…”

Section: Sensing Processmentioning

confidence: 99%

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A 1.02 μW Autarkic Threshold-Based Sensing and Energy Harvesting Interface Using a Single Piezoelectric Element

Agorastou

Kalenteridis

Siskos

2021

JLPEA

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A self-powered piezoelectric sensor interface employing part of the signal that is not intended for measurement to sustain its autonomous operation was designed using XH018 (180 nm) technology. The aim of the proposed circuit, besides the energy self-sufficiency of the sensor, is to provide an interface that eliminates the effect of the harvesting process on the piezoelectric output signal which contains context data. This is achieved by isolating part of the signal that is desirable for sensing from the harvesting process so that the former is not affected or distorted by the latter. Moreover, the circuit manages to self-start its operation, so no additional battery or pre-charged capacitor is needed. The circuit achieves a very low power consumption of 1.02 μW. As a proof of concept, the proposed interfacing circuit is implemented in order to be potentially used for weigh-in-motion applications.

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Section: Sensing Processmentioning

confidence: 99%

“…Figure 5 graphically illustrates the harvesting part of the circuit. It consists of a CMOS rectifier (Mn1, Mn2, Mp1, Mp2)[20], a switch, SW2, that impedes harvesting when the piezoelectric element operates as a sensor, and the SW2 control block. In this way, the loading effect from the storage capacitor is avoided.…”

mentioning

confidence: 99%

A 1.02 μW Autarkic Threshold-Based Sensing and Energy Harvesting Interface Using a Single Piezoelectric Element

Agorastou

Kalenteridis

Siskos

2021

JLPEA

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“…Figure 2(a) depicts a standard rectification circuit formed by a diode bridge [12]. This circuit consists of four diodes and has a considerable voltage drop (VD) that decreases the output voltage and power conversion efficiency of the rectifier.…”

Section: Full-wave Rectifiersmentioning

confidence: 99%

“…Figure 2 (b) shows the topology of a CMOS cross-coupled rectifier that reduces the voltage drop [13]. with comparator circuits [12], [13], [14], [15].…”

Section: Full-wave Rectifiersmentioning

confidence: 99%

“…Commonly, a diode bridge is used as a full-wave rectifier; however, this type of circuit has low-voltage conversion efficiency (VCE) due to its limitation to rectify signals of amplitudes less than a threshold voltage (0.3 V or 0.7 V) of diodes [11]. In addition, these voltage drops in the diodes decrease the output voltage of the rectifier, which affects the power conversion efficiency (PCE) [12]. An option to improve the VCE and PCE of a rectifier are obtained substituting the diode bridge by a complementary metal-oxidesemiconductor (CMOS) circuit [13].…”

Section: Introductionmentioning

confidence: 99%

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A Novel CMOS reconfigurable rectifier for wearable piezoelectric energy harvesters

Vázquez-Valdés

Juarez-Aguirre

Woo-Garcia

et al. 2021

Revista UIS Ingenierías

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Wearable energy harvesters have potential application in the conversion of human-motion energy into electrical energy to power smart health-monitoring devices, the textile industry, smartwatches, and glasses. These energy harvesters require optimal rectifier circuits that maximize their charging efficiencies. In this study, we present the design of a novel complementary metal-oxide semiconductor (CMOS) reconfigurable rectifier for wearable piezoelectric energy harvesters that can increase their charging efficiencies. The designed rectifier is based on standard 0.18 µm CMOS process technology considering a geometrical pattern with a total silicon area of 54.765 µm x 86.355 µm. The proposed rectifier circuit has two transmission gates (TG) that are composed of four rectifier transistors with a charge of 45 kΩ, a minimum input voltage of 500 mV and a maximum voltage of 3.3 V. Results of numerical simulations of the rectifier performance indicate a voltage conversion efficiency of 99.4% and a power conversion efficiency up to 63.3%. The proposed rectifier can be used to increase the charging efficiency of wearable piezoelectric energy harvesters.

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Comparison of Different Technologies for Transistor Rectifiers Circuits for Micropower Energy Harvesters

Prócel¹,

Paredes²,

Trojman³

2019

2019 Latin American Electron Devices Conference (LAEDC)

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High efficiency CMOS rectifier for energy harvesting

Cited by 3 publications

References 7 publications

A 1.02 μW Autarkic Threshold-Based Sensing and Energy Harvesting Interface Using a Single Piezoelectric Element

A 1.02 μW Autarkic Threshold-Based Sensing and Energy Harvesting Interface Using a Single Piezoelectric Element

A Novel CMOS reconfigurable rectifier for wearable piezoelectric energy harvesters

Comparison of Different Technologies for Transistor Rectifiers Circuits for Micropower Energy Harvesters

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