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Title: A Solar Based Power Module for Battery-Less IoT Sensors Towards Sustainable Smart Cities
Authors: Ram, Saswat Kumar
Chourasia, Shubham
Das, Banee Bandana
Swain, Ayaskanta
Mahapatra, Kamalakanta
Mohanty, Saraju P
Keywords: Internet-of-Things (IoT
Energy Harvesting System(EHS)
Battery-Less IoT
Solar Energy
Power Management Unit (PMU)
Issue Date: Jul-2020
Citation: IEEE-ISVLSI 2020, Limassol, Cyprus,6-8 July 2020
Abstract: This paper presents an ultra-low-power solar energy harvesting system with a power management module (SEHSPMU) for the Internet-of-Things (IoT) applications. The voltages generated are suitable for the IoT sensors used for smart cities as well as Internet-of-Medical-Things (IoMT) based biomedical applications. The SEHS-PMU is harvesting energy from the solar cell, and it can provide regulated voltages of 3.3 V, 1.8 V, 1 V, and 0.5 V. The harvesting mechanism leads to battery-less IoT, and is safe for the humanity and environment. Charge pumps (CP) are used as a boost and buck converter, which is suitable for monolithic integration. Low drop-out regulators (LDOs) are used for regulating the loads. A digital controller controls the selection of loads as per requirement for saving the power. The SEHS-PMU is designed in CMOS 180 nm technology library. Index Terms—Internet-of-Things (IoT), Sustainable IoT, Battery-Less IoT, Solar Energy, Energy Harvesting System (EHS), Power Management Unit (PMU), Low Dropout Regulator (LDO), Bandgap Reference Generator (BGR), Charge Pump.
Description: Copyright of this document belongs to proceedings publisher.
Appears in Collections:Conference Papers

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