With the merits of zero internal equivalent resistance and maximized output energy, the pulsed mode triboelectric nanogenerators (TENGs) can achieve impedance matching with the power management circuits (PMCs), showing wide application prospects in self-powered systems. The key for developing Pulsed-TENGs lies in designing synchronously triggered mechanical switches (STMSs). However, rotational TENGs, as a promising configuration for harvesting mechanical energy, have rarely been designed as pulsed mode because of the difficulty in fabricating rational STMSs. Herein, rotating freestanding triboelectric-layer Pulsed-TENGs (RF-Pulsed-TENGs) are realized through integrating STMSs on triboelectric layers in one step by printed circuit board process. Since the on-off states of the STMSs can match well with the rotation frequency, the output voltage and energy of the RF-Pulsed-TENGs are maximized regardless of the rotation frequency or load resistance. Both alternating current and unidirectional current output RF-Pulsed-TENGs have been realized, and the energy storage efficiency of their corresponding passive PMCs can reach 51.6% and 52.0%, respectively. The system consisting of a gearbox, a passive PMC, and a RF-Pulsed-TENG has been demonstrated to power a range of electronic devices, such as calculators, electronic watches, and temperature/humidity meters, offering significant advantages and promising applications in efficient mechanical energy harvesting and self-powered sensing.

凭借内部零等效电阻和最大输出能量的优点，脉冲模式摩擦电纳米发电机（TENG）可以实现与电源管理电路（PMC）的阻抗匹配，在自供电系统中显示出广阔的应用前景。开发脉冲式TENG的关键在于设计同步触发机械开关（STMS）。但是，旋转TENG作为一种收集机械能的有前途的配置，由于制造合理的STMS的困难而很少被设计成脉冲模式。本文中，通过将STMS集成在摩擦电层上一步一步地通过印刷电路板工艺来实现旋转自立式摩擦电层脉冲TENG（RF-Pulsed-TENG）。由于STMS的开关状态可以与旋转频率很好地匹配，无论旋转频率或负载电阻如何，RF脉冲TENG的输出电压和能量都将最大化。已经实现了交流电和单向电流输出RF脉冲TENG，它们相应的无源PMC的储能效率分别可以达到51.6％和52.0％。该系统由变速箱，无源PMC和RF脉冲式TENG组成，已被证明可为一系列电子设备供电，例如计算器，电子表和温度/湿度计，在高效节能方面具有明显的优势和广阔的应用前景机械能量收集和自供电传感。相应的被动式PMC的储能效率分别达到51.6％和52.0％。该系统由变速箱，无源PMC和RF脉冲式TENG组成，已被证明可为一系列电子设备供电，例如计算器，电子表和温度/湿度计，在高效节能方面具有明显的优势和广阔的应用前景机械能量收集和自供电传感。相应的被动式PMC的储能效率分别达到51.6％和52.0％。该系统由变速箱，无源PMC和RF-Pulsed-TENG组成，已被证明可为各种电子设备供电，例如计算器，电子表和温度/湿度计，在高效节能方面具有明显的优势和广阔的应用前景机械能量收集和自供电传感。