Integrated Capacitive Power-Management Circuit for Thermal Harvesters with Output Power 10 to 1000µW

📋 论文概要

该论文提出了一种用于热能量采集器的集成电容式功率管理电路，能够处理10至1000微瓦的输出功率范围。通过可变转换因子的DC/DC转换器和控制器，解决了热电发电机因环境变化导致的功率和电压波动问题，实现了能量的有效存储和管理。

💡 主要创新点

• 采用电容式功率管理架构，实现了宽功率范围（10-1000µW）的高效能量转换。
• 集成了可变转换因子的DC/DC转换器和自适应控制器，能够动态适应热电发电机的输出变化。

🏷 关键词

📄 原文摘要

U.Leuven, Leuven, Belgium 3 R.M.A., Brussels, Belgium 2 Energy harvesters [1] power energy-autonomous wireless sensor systems by converting ambient environmental energy into electrical energy. Thermoelectric generators (TEG’s) are a suitable compact power supply for both on-the-body and industrial sensors. Due to changing conditions, the generated power and voltage vary. Therefore a power management circuit (PMC) has to store the generated energy in a rechargeable battery or capacitor. It contains a DC/DC-converter with variable conversion factor and a controller that sets the conversion factor. The overall efficiency of such a PMC depends on the efficiency of the DC/DCconversion and on the power consumption of the controller. For low power applications, the main challenge is that the power consumption of the controller should only be a fraction of what is generated. Previously, PMC’s for

👥 作者与机构

I. Doms1,2, P. Merken1,3, R. Mertens1,2, C. Van Hoof1,2, 1

IMEC, Leuven, Belgium K