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Establishing a smart sensing system is desirable but challenging as the conventional devices require an external battery or power grid which cruelly limits its applications, especially in remote areas or at the condition of power supply with difficulty. Here, we report a smart self-powered sensing network based on a hybrid nanogenerator (NG) that can harvest wind energy and solar energy simultaneously...
Triboelectric nanogenerator (TENG) has the output characteristics of high voltage but low current/charge-transfer, making its low efficiency in powering most of electronics. To address this problem, power management circuits consisting of coupled inductors or transformers are usually employed. Here we report an inductor-free, auto-power-management design based on automatic switches between serial-connected...
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