A Design of High Efficiency Non-Time Division Multiplexing Battery-less and Self-Powered Multi-Input Single-Inductor Single-Output Using 22nm FDSOI Technology

This study focuses on the development and analysis of a non-time division multiplexing technique of the multi-input single-inductor single-output energy harvesting unit using 22nm FDSOI technology. The EHU is designed to harness energy from three transducers, namely: PV, PZT, and TEG. Moreover, the proposed system operates without the need for external power sources or batteries. The proposed EHU achieves a peak extraction efficiency of 87% and a maximum power-point tracking efficiency of 99% and delivering an overall system power output of 3. 6mW. It can rapidly reach a peak output voltage of 2V within approximately 27 sec. of charging from 0 V. The findings demonstrate the efficacy of the EHU in efficiently harvesting energy from multiple sources, enabling remote and sustainable applications for wearables, wireless sensor nodes and for the internet-of-things (IoT) devices.