Abstract:
In this work, we present a compact self-powered wireless gas sensor node based on photovoltaic (PV) energy harvesting (EH). Instead of a bulky and power-hungry gas sensor...Show MoreMetadata
Abstract:
In this work, we present a compact self-powered wireless gas sensor node based on photovoltaic (PV) energy harvesting (EH). Instead of a bulky and power-hungry gas sensor with separate gas signal processing (GSP) circuits, a mm3-sized colorimetric sensor film is integrated with a PV cell, and the GSP function is seamlessly embedded within EH circuits. Also, a dual-input shared-inductor boost converter is used to improve the EH efficiency under gas exposure. Offset cancellation is performed in GSP circuits to provide accurate gas-sensing readout without any external trimming.
Published in: 2021 Symposium on VLSI Circuits
Date of Conference: 13-19 June 2021
Date Added to IEEE Xplore: 28 July 2021
ISBN Information:
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