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首页> 外文会议>European Conference on Power Electronics and Applications >A Bias Supply Scheme for a Self-Powered EMS for Battery-less IoT Applications Powered by Electromagnetic Energy Harvesters
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A Bias Supply Scheme for a Self-Powered EMS for Battery-less IoT Applications Powered by Electromagnetic Energy Harvesters

机译：由电磁能量收集器提供动力的无电池IoT应用的自供电EMS的偏置电源方案

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摘要

This paper presents a bias supply scheme for a self-powered energy management system (EMS) for internet of things (IoT) applications powered by ultra-low-voltage electromagnetic energy harvesters (EMEHs). The bias supply scheme utilizes the first two cycle of the EMEH voltage to provide a start-up voltage, with the help of a two-stage Villard charge pump, to the control circuit. Then, it utilizes the unregulated intermediate voltage of the EMS alongside a single stage charge pump with a floating capacitor to sustain the operation of the system. The bias supply scheme is completely passive and can be implemented with off-shelf discrete components or on a standard technology node. The EMS is also capable of providing a tight output voltage regulation using a tiny magnetic substrate based de-de converter. Experimental results show the effectiveness of the presented solution to operate with an ultra-low-voltage EMEH that has a damped voltage characteristics from 0. 8V to 10m V. Also, the tiny magnetic substrate based de-de converter provides a tight regulated voltage of 1.2V at 5mA for group of wireless sensors while achieving efficiency around 83% for load currents between 100μA and 200mA.
机译：本文提出了一种由超低压电磁能量收集器（EMEH）驱动的，用于物联网（IoT）应用的自供电能量管理系统（EMS）的偏置电源方案。偏置电源方案利用EMEH电压的前两个周期在两级Villard电荷泵的帮助下向控制电路提供启动电压。然后，它利用EMS的未经调节的中间电压以及带有浮动电容器的单级电荷泵来维持系统的运行。偏置电源方案是完全无源的，可以用现成的分立元件或在标准技术节点上实现。 EMS还能够使用基于微型磁性基板的de-de转换器提供严格的输出电压调节。实验结果表明，所提出的解决方案可与具有0. 8V至10m V的阻尼电压特性的超低压EMEH一起工作。无线传感器组在5mA时为1.2V，同时在100μA至200mA之间的负载电流下实现了约83％的效率。

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