A Dual-SSHC Rectifier With Digital-DCB MPPT for Triboelectric Energy Harvesting

IF 3.2

IEEE Open Journal of the Solid-State Circuits Society Pub Date : 2025-03-27 DOI:10.1109/OJSSCS.2025.3573905

Wenyu Peng;Xinling Yue;Willem D. van Driel;Guoqi Zhang;Sijun Du

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引用次数: 0

Abstract

Triboelectric nanogenerator (TENG), advantageous in high energy density and flexibility, is promising as a sustainable energy source but can hardly be used to power edge devices directly due to its high-voltage ac output and varying capacitive impedance. To address it, this work proposes a power-conditioning interface with a fully integrated dual synchronous switch harvesting on capacitors (D-SSHC) rectifier for triboelectric energy extraction. Furthermore, a full digital duty-cycle-based (DCB) maximum power point tracking (MPPT) algorithm is developed to optimize the energy harvesting efficiency with simple implementation and continuous tracking. Designed and fabricated in a 0.18-

$\mu $

m BCD process, the proposed interface can extract energy at a maximum output voltage of 70 V. According to the measurement results, it achieves 99% MPPT efficiency and an energy extraction improvement of 598% compared to a full-bridge rectifier.

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带数字dcb MPPT的双sshc摩擦电能采集整流器

摩擦纳米发电机（TENG）具有高能量密度和灵活性的优点，是一种有前景的可持续能源，但由于其高压交流输出和多变的电容阻抗，难以直接用于边缘器件供电。为了解决这个问题，本研究提出了一种功率调节接口，该接口具有完全集成的双同步开关收集电容器（D-SSHC）整流器，用于摩擦电能提取。在此基础上，提出了一种基于全数字占空比（DCB）的最大功率点跟踪（MPPT）算法，以优化能量收集效率，实现简单、连续跟踪。在0.18- $\mu $ m的BCD工艺中设计和制造，所提出的接口可以在70 V的最大输出电压下提取能量。根据测量结果，与全桥整流器相比，它达到了99%的MPPT效率，能量提取提高了598%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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IEEE Open Journal of the Solid-State Circuits Society

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