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

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

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....

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Veröffentlicht in:IEEE solid-state circuits letters 2023, Vol.6, p.209-212
Hauptverfasser: Chen, Cheng-Wen, Hung, Wei-Chieh, Yang, Zhen-Yu, Chen, An, Chen, Ke-Horng, Zheng, Kuo-Lin, Lin, Ying-Hsi, Lin, Shian-Ru, Tsai, Tsung-Yen
Format: Artikel
Sprache:eng
Schlagworte:
Energy harvesting
Loss reduction
Power consumption
Power management
Transconductance
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Zusammenfassung: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 [Formula Omitted] to 80 mW.
ISSN:2573-9603
2573-9603
DOI:10.1109/LSSC.2023.3296579