A 0.5 nJ/Conversion Self-Resetting Energy-Autonomous Multi-Node Temperature Sensor With Hybrid Energy Harvesting
Open Access
- 10 December 2025
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Open Journal of the Solid-State Circuits Society
- Vol. 5, 377-387
Abstract
This article presents an energy-autonomous, self-resetting, multi-node temperature sensor powered by hybrid energy harvesting. The ultra-low leakage Self-Adaptive Full Bridge Rectifier (SA-FBR) accepts any hybrid energy harvesting source at both sparse and abundant inputs and suppresses the leakage by 1000×. The Dynamic Power Management Unit (D-PMU) enables event-driven wake-up capability that allows for 97.3% power saving during standby mode. The 0.5 nJ/conversion temperature sensor in 0.18 μm CMOS uses active self-resetting, spike-based coding to achieve the widest measurement range of -10∘C to 110∘C to date.Keywords
Funding Information
- National Research Foundation
- Korea Government (MSIT), South Korea (RS-2024-00339998)
- A*STAR AME Nanosystems at the Edge Program, Singapore (A18A4b0055)
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