Live Demonstration: Light Energy Harvesting System with an On-Chip Solar Cell and Cold Start-Up

Abstract

This live demonstration is related to ISCAS track “4.5: Circuits & Systems for Energy Harvesting”. This live demo shows a micro-energy harvesting system which includes a 1 mm2 solar cell as the unique power source and a Power Management Unit (PMU) on the same substrate in standard 0.18 μm CMOS technology. The PMU has cold start-up from nW and it also performs a continuous and two-dimensional maximum power point tracking using analog strategies to meet very low power consumption, managing a high input power range. The system is used to power an off-chip NAND gate.