使用基于 400 V FEP 的分段摩擦纳米发电机和用于多功能物联网应用的 98.2% 跟踪效率电源管理 IC 的自供电脉冲能量收集器的分析和实验,Advanced Functional Materials

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使用基于 400 V FEP 的分段摩擦纳米发电机和用于多功能物联网应用的 98.2% 跟踪效率电源管理 IC 的自供电脉冲能量收集器的分析和实验
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2023-02-24 , DOI: 10.1002/adfm.202213900
Seneke Chamith Chandrarathna ₁ , Sontyana Adonijah Graham ₂ , Muhammad Ali ₁ , Arambewaththe Lekamalage Aruna Kumara Ranaweera ₃ , Migara Lakshitha Karunarathne ₄ , Jae Su Yu ₂ , Jong‐Wook Lee ₁

Affiliation

展示了一种用于物联网 (IoT) 的自供电系统，可有效收集自然可用的机械能。在该系统中，研究了基于氟化乙烯丙烯的新型接触分离模式摩擦纳米发电机 (TENG)，使用分段多 TENG 配置来降低寄生电容的影响。TENG 提取使用与道森函数相关的单位阶跃激励进行优化，以实现高电压 (400 V) 和高电流 (26.6 µA)。为了充分提取 TENG 的能量，提出了专为自适应控制、高压 (HV) 最大功率点跟踪 (MPPT) 设计的电源管理集成电路 (PMIC)。采用双极 CMOS-DMOS 180 nm 工艺实现的 PMIC 可通过消耗 420 nW 处理宽输入范围 (5–70 V)。MPPT 控制允许从 10 到 300 MΩ 的宽范围阻抗匹配，实现高达 98.2% 的跟踪效率。88% 的端到端效率展示了最先进的性能。为了提供比 TENG 可用的瞬时功率更高的瞬时功率，成功地展示了占空比技术。拟议的能量收集系统为实现各种物联网应用的可持续和自主能源提供了一种有前途的方法。

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Analysis and Experiment of Self-Powered, Pulse-Based Energy Harvester Using 400 V FEP-Based Segmented Triboelectric Nanogenerators and 98.2% Tracking Efficient Power Management IC for Multi-Functional IoT Applications

A self-powered system for the Internet of Things (IoT) is demonstrated for efficient energy harvesting of naturally available mechanical energy. In this system, new contact-separation mode triboelectric nanogenerators (TENGs), based on fluorinated ethylene propylene, are investigated using the segmented multi-TENG configuration to reduce the effect of parasitic capacitance. The TENG extraction is optimized using a unit step excitation involved with the Dawson function to achieve a high voltage (400 V) and a high current (26.6 µA). To fully extract the power of the TENGs, the power management integrated circuit (PMIC) specially designed for adaptively controlled, high-voltage (HV) maximum power point tracking (MPPT) is proposed. The PMIC implemented in a bipolar CMOS-DMOS 180 nm process can handle a wide input range (5–70 V) by consuming 420 nW. The MPPT control allows a wide range of impedance matching from 10 to 300 MΩ, achieving a tracking efficiency of up to 98.2%. The end-to-end efficiency of 88% demonstrates state-of-the-art performance. To supply a higher instantaneous power than that available from the TENGs, a duty-cycling technique is successfully demonstrated. The proposed energy harvesting system provides a promising approach to realizing sustainable and autonomous energy sources for various IoT applications.

更新日期：2023-02-24

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