A Highly Efficient 0.18um CMOS Rectifier For Vibrational Energy Harvesting System in Embedded Electronics Design

International Journal of Electrical and Electronics Engineering

© 2020 by SSRG - IJEEE Journal

Volume 7 Issue 8

Year of Publication : 2020

Authors : Hafez Fouad

10.14445/23488379/IJEEE-V7I8P102

How to Cite?

Hafez Fouad, "A Highly Efficient 0.18um CMOS Rectifier For Vibrational Energy Harvesting System in Embedded Electronics Design," SSRG International Journal of Electrical and Electronics Engineering, vol. 7,  no. 8, pp. 4-10, 2020. Crossref, https://doi.org/10.14445/23488379/IJEEE-V7I8P102

Abstract:

The energy harvesting research falls into two key areas. One is developing optimal structures of energy harvesting, and the other is designing electronic circuits that are efficient enough to store the generated charge. Optimization of microelectronic devices to reduce energy consumption, while all devices strive to achieve excellent efficiency, balancing performance and power consumption, the application area will dictate design constraints such as size, energy budget, and maximum power. Regarding the research area of optimal design of electronic circuits, two highly efficient CMOS rectifier for vibrational energy harvesting system is proposed. Based on design considerations, rectifier plays an important role in the application of an energy harvesting system and wireless power transfer system. So, The performance of the rectifier decides the efficiency of the system. Two proposed designs of low voltage Rectifier are Suggested for operating frequency of 13.56 MHz. The first design using the two-stage structure and an Improved precision active diode and the second design using diode voltage booster The suggested structures are established using a standard 0.18um CMOS process can perform the minimum operating voltage is lower than previously published paper. The rectifier can work at a wide range of input voltage amplitudes of 0.45V up to 1.95V and the second design to 1.98V. So, the proposed rectifiers are suitable to work in Different Types of vibrational energy harvesting system, Electrostatic Energy harvester, Electromagnetic Energy Harvester, Piezoelectric Energy Harvester. The proposed rectifiers can achieve peak voltage conversion efficiency of over 82% and power efficiency over 89%. Simulated power consumption of the rectifier is 0.23uW, which is about 26% smaller than the recently published results.

Keywords:

Low Voltage Rectifier, Improved Precision Active Diode, Low power design, Embedded Electronics, Energy Harvesting, CMOS Circuits, Battery-less Technology, mechanical vibration, wearable and embedded sensors, Low power circuits and architectures, energy efficiency, Diode Voltage Booster. Wireless Power Transfer WPT

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