A 93.2%-Efficiency Multi-Input Bipolar Energy Harvester With 17.9× MPPT Loss Reduction

Cheng Wen Chen, Wei Chieh Hung, Zhen Yu Yang, An Chen, Ke Horng Chen*, Kuo Lin Zheng, Ying Hsi Lin, Shian Ru Lin, Tsung Yen Tsai

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The proposed multi-input bipolar energy harvester (MIBEH) can harvest different input sources by using the source battery rotating supply (SBRS) technique, and can achieve low-input source voltage ripple and bidirectional energy harvesting with the negative source enhanced supply (NSES) technology. Moreover, to improve harvesting efficiency, the proposed double transconductance reduction (DGR) comparator is designed with different bias currents according to different input powers. Furthermore, the proposed body-driven zero-current detector (ZCD) can achieve both high precision and low-power consumption. The end-to-end peak efficiency is 93.2%, and the output power ranges from 1μW to 80 mW.

Original languageEnglish
Pages (from-to)209-212
Number of pages4
JournalIEEE Solid-State Circuits Letters
Volume6
DOIs
StatePublished - 2023

Keywords

  • Buck
  • buck-boost
  • energy harvesting (EH)
  • low-IQ comparator
  • multi-input source
  • thermal energy generator (TEG)
  • zero-current detector (ZCD)

Fingerprint

Dive into the research topics of 'A 93.2%-Efficiency Multi-Input Bipolar Energy Harvester With 17.9× MPPT Loss Reduction'. Together they form a unique fingerprint.

Cite this