文章基本信息

标题：A universal managing circuit with stabilized voltage for maintaining safe operation of self-powered electronics system
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作者：Fan Wang ; Jingwen Tian ; Yafei Ding 等
期刊名称：iScience
印刷版ISSN：2589-0042
出版年度：2021
卷号：24
期号：5
页码：1-13
DOI：10.1016/j.isci.2021.102502
语种：English
出版社：Elsevier
摘要：SummaryHarvesting mechanical energy via a triboelectric nanogenerator (TENG) is a promising strategy for solving energy problems. However, it is necessary to develop an effective and safe energy managing circuit for preventing high voltage breaking electronic devices. Here, a universal managing circuit is developed to optimize TENG's output performance, which for the first time allows the TENG to safely power various sensor systems with a safe and stable voltage. Based on the circuit, TENG's output can be transformed into a stable voltage with tunable amplitude, while an enhanced short-circuit current of 94 mA with an energy loss lower than 5% is achieved. For demonstrations, three different types of TENGs, respectively, targeting at ocean energy, wind energy, and walking energy have been prepared to reveal the capability of the circuit. This study offers a strategy to greatly enhance the output performance of TENGs to provide useful guidance for constructing self-powered and distributed sensor systems.Graphical abstractDisplay OmittedHighlights•UMC is designed for a TENG to maintain stable voltage with a lower resistance•UMC provides a short-circuit current of 94 mA with an energy loss lower than 5%•UMC can completely avoid the breakdown of electronic devices due to TENG's high voltage•Three self-powered sensor systems have been successfully establishedElectronic engineering; Energy Resources; Energy systems; Devices