Ultra-Low Power Solar Energy Harvester for IoT Edge Node Devices

被引：9

作者：

Ram, Saswat Kumar ^{[1
]}

Das, Banee Bandana ^{[1
]}

Swain, Ayas Kanta ^{[1
]}

Mahapatra, Kamalakanta ^{[1
]}

机构：

[1] Natl Inst Technol Rourkela, Rourkela, India

来源：

2019 IEEE INTERNATIONAL SYMPOSIUM ON SMART ELECTRONIC SYSTEMS (ISES 2019) | 2019年

关键词：

Charge Pumps; Internet of Things (IoT); Wireless Sensor Networks (WSNs); Capacitor Value Modulation (CVM); Resistor Bank;

D O I：

10.1109/iSES47678.2019.00053

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

An Ultra-low power solar energy harvesting system (EHS) for IoT end node devices is presented in this paper. To provide an uninterrupted power supply to IoT nodes is a challenge. The solar cell is used as an input source and this low input voltage is boosted by using the DC-DC converter. The charge pump is used as a voltage booster and the impedance matching between the solar cell and the converter is achieved through frequency tuning and capacitor value modulation. A hill-climbing technique is used for maximum power point (MPP) achievement. The EHS designed is self-sustainable and the output is in the range of 3-3.55 V with an input of 1-1.5 V. The EHS is designed in CMOS 90 nm technology library. The simulation results validate the proposed concept and the EHS is consuming a power of 22 mu W, which is within the Ultra-low power range of IoT smart nodes.

引用

页码：205 / 208

页数：4

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