Current Progress on Power Management Systems for Triboelectric Nanogenerators

Hu, Tingshu; Wang, Haifeng; Harmon, William; Bamgboje, David; Wang, Zhong Lin

doi:10.1109/tpel.2022.3156871

Cited by 34 publications

(17 citation statements)

References 114 publications

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“…Hybrid energy harvesters that combine two or more transducing mechanisms and scavenge energy from multiple energy sources may help alleviate this problem . In addition, output power usually fluctuates with the intensity of energy sources, requiring power management circuits and energy storage devices to level the curve and to provide sustained and constant power. , However, power management circuits themselves usually require power to function . To minimize additional power requirements, a power management circuit for TENGs was designed to perform effective power regulation without any additional power input, which may inspire other energy harvesters.…”

Section: Power Supplymentioning

confidence: 99%

“…785 Such impedance mismatches can significantly reduce system efficiency during operation. However, the additional power modulation circuits and elements 660,738,743,785 (e.g., transformers to regulate generators' voltage output, charge pump circuits to increase power output of biofuel cells, maximum power point tracking circuitry to vary optimum electrical operating point of photovoltaics 786 ) increase design and manufacturing complexity as well as implementation cost, and reduce system compactness. Thus, the integration levels of various energy harvesting and storage devices with other components in the system is critical.…”

Section: Power Supplymentioning

confidence: 99%

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Technology Roadmap for Flexible Sensors

et al. 2023

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Humans rely increasingly on sensors to address grand challenges and to improve quality of life in the era of digitalization and big data. For ubiquitous sensing, flexible sensors are developed to overcome the limitations of conventional rigid counterparts. Despite rapid advancement in bench-side research over the last decade, the market adoption of flexible sensors remains limited. To ease and to expedite their deployment, here, we identify bottlenecks hindering the maturation of flexible sensors and propose promising solutions. We first analyze challenges in achieving satisfactory sensing performance for real-world applications and then summarize issues in compatible sensor-biology interfaces, followed by brief discussions on powering and connecting sensor networks. Issues en route to commercialization and for sustainable growth of the sector are also analyzed, highlighting environmental concerns and emphasizing nontechnical issues such as business, regulatory, and ethical considerations. Additionally, we look at future intelligent flexible sensors. In proposing a comprehensive roadmap, we hope to steer research efforts towards common goals and to guide coordinated development strategies from disparate communities. Through such collaborative efforts, scientific breakthroughs can be made sooner and capitalized for the betterment of humanity.

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Section: Power Supplymentioning

confidence: 99%

Section: Power Supplymentioning

confidence: 99%

Technology Roadmap for Flexible Sensors

et al. 2023

Self Cite

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“…The Bennet circuit can boost the output voltage by more than two times at Node B (Figure 6c-ii) due to the charge and discharge of C ref and C B . [49,50] The AC output signal from the TVNG can turn the two capacitors from a series connection (when D 2 is ON) to a parallel connection (when D 1 and D 3 are ON). During operation, the stored charges on the capacitor is somewhat discharged to the TVNG system, [49] leading to more stored charges on the capacitors in the Bennet circuit for the next discharging cycle.…”

Section: Characterizations Of P-cu 2 O and N-g-c 3 N 4 Composite Filmsmentioning

confidence: 99%

Highly Flexible Tribovoltaic Nanogenerator Based‐on P‐N Junction Interface: Comparative Study on Output Dependency Dominated by Photovoltaic Effect in Freestanding‐Mode

Sriphan,

Worathat,

Pharino

et al. 2023

Adv Funct Materials

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The emergence of tribovoltaic nanogenerators (TVNGs) paves the way for developing a new kind of semiconductor‐based energy harvester that overcomes the restriction of low output current in a conventional approach. The traditional TVNG generally depends on the frictional pair between two rigid semiconductors (or metal‐semiconductor), limiting the practicability of flexible and portable electronics. Recent developments require the fundamental understanding of charge generation in diverse operating modes and structures. Here, a flexible TVNG based on the p‐Cu2O/n‐g‐C3N4 interface is presented. Operating in a freestanding mode, the proposed TVNG can generate a stable signal in any optical conditions including UV illumination, dark, and ambient. Under UV illumination, the electrical outputs of the TVNG reach 0.43 V and 2.1 µA cm−2, which are significantly larger than those obtained from dark and ambient conditions. The results demonstrate the coupling effect of three phenomena: tribovoltaic, photovoltaic, and triboelectric effects, and the unique mechanism to the observed signal is proposed. Additionally, the TVNG shows the practical feasibility of energy harvesting with capacitor charging and charge‐boosting circuits. This study showcases the unique concept with potential for developing a novel flexible nanogenerator in many aspects, including material, structure, and fundamental mechanism.

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“…The output of a TENG is characterized by a typical high voltage and low current. [ 193 ] Moreover, its output signal changes with frictional motion, generating irregular AC signals under nonlaboratory periodic mechanical friction, which makes it difficult for TENGs to be effective energy‐supplying or sensing devices. Therefore, PM is necessary, which refers to improving the output of TENGs through a series of electronic components and external circuits.…”

Section: Progress Of Textile‐based Tengsmentioning

confidence: 99%

Textile‐Based Triboelectric Nanogenerators for Smart Wearable Systems: Comfort, Integration, and Application

Tian

Dong

Yang

et al. 2022

Adv Materials Technologies

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Textile‐based triboelectric nanogenerators (t‐TENGs) possess the unique wearability characteristics of fabrics. The advent of t‐TENGs not only broadens the development direction of new materials in the textile industry but also endows TENGs with greater application potential. However, the electrical output and desired comfort properties of t‐TENGs remain limited and impractical. Important progress has been made in the exploitation of t‐TENGs in recent years. In this review, the basic classifications of comfort, including sensorial and tactile comfort, fit comfort, heat–moisture comfort, and appearance aesthetics, are introduced. Combining the wearability of textiles, the recent progress in the development of comfortable t‐TENGs is systematically summarized and discussed from the following aspects: tactile comfort of t‐TENGs, stretchability of t‐TENGs, breathability of t‐TENGs, washability of t‐TENGs, aesthetics of t‐TENGs, and multifunctionality of t‐TENGs. Additionally, the enhanced output performance, power management, integration strategies, and mass production of t‐TENGs are discussed, and the main applications of wearable t‐TENGs are described. Finally, the existing challenges and future research direction of t‐TENGs are presented, which may contribute to promoting further research and applications of wearable t‐TENGs.

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Current Progress on Power Management Systems for Triboelectric Nanogenerators

Cited by 34 publications

References 114 publications

Technology Roadmap for Flexible Sensors

Technology Roadmap for Flexible Sensors

Highly Flexible Tribovoltaic Nanogenerator Based‐on P‐N Junction Interface: Comparative Study on Output Dependency Dominated by Photovoltaic Effect in Freestanding‐Mode

Textile‐Based Triboelectric Nanogenerators for Smart Wearable Systems: Comfort, Integration, and Application

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