A Reconfigurable Multi-Level AC-DC/DC-DC Ocean Energy Harvester IC Achieving 77.7% End-to-End Power Efficiency for Triboelectric Nanogenerators

Woojoong Jung; Hyung Min Lee; Hanh Phuc Le

doi:10.23919/VLSITechnologyandCir65189.2025.11074895

A Reconfigurable Multi-Level AC-DC/DC-DC Ocean Energy Harvester IC Achieving 77.7% End-to-End Power Efficiency for Triboelectric Nanogenerators

Woojoong Jung
, Hyung Min Lee^*
, Hanh Phuc Le^*

^*Corresponding author for this work

School of Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The proposed integrated ocean energy harvester IC combines a multi-level bias-flip (BF) topology for improved BF efficiency with a high-voltage multi-level full-bridge active rectifier, providing reconfigurability between AC-DC rectification and DC-DC conversion with a single inductor while reducing power stage losses. The proposed reconfigurable multi-level (RML) AC-DC/DC-DC energy harvester IC achieves a peak end-to-end (E2E) power efficiency of 77.7%, a wide P_{EXT (∼ 2 mW), and an outstanding FoM of 6.63x while supporting input frequency (f_TENG) range of 1-50 Hz.

Original language	English
Title of host publication	2025 Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2025
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9784863488151
DOIs	https://doi.org/10.23919/VLSITechnologyandCir65189.2025.11074895
Publication status	Published - 2025
Event	2025 Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2025 - Kyoto, Japan Duration: 2025 Jun 8 → 2025 Jun 12

Publication series

Name	Digest of Technical Papers - Symposium on VLSI Technology
ISSN (Print)	0743-1562
ISSN (Electronic)	2158-9682

Conference

Conference	2025 Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2025
Country/Territory	Japan
City	Kyoto
Period	25/6/8 → 25/6/12

Bibliographical note

Publisher Copyright:
© 2025 JSAP.

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.23919/VLSITechnologyandCir65189.2025.11074895

Cite this

Jung, W., Lee, H. M., & Le, H. P. (2025). A Reconfigurable Multi-Level AC-DC/DC-DC Ocean Energy Harvester IC Achieving 77.7% End-to-End Power Efficiency for Triboelectric Nanogenerators. In 2025 Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2025 (Digest of Technical Papers - Symposium on VLSI Technology). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.23919/VLSITechnologyandCir65189.2025.11074895

A Reconfigurable Multi-Level AC-DC/DC-DC Ocean Energy Harvester IC Achieving 77.7% End-to-End Power Efficiency for Triboelectric Nanogenerators. / Jung, Woojoong; Lee, Hyung Min; Le, Hanh Phuc.
2025 Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2025. Institute of Electrical and Electronics Engineers Inc., 2025. (Digest of Technical Papers - Symposium on VLSI Technology).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Jung, W, Lee, HM & Le, HP 2025, A Reconfigurable Multi-Level AC-DC/DC-DC Ocean Energy Harvester IC Achieving 77.7% End-to-End Power Efficiency for Triboelectric Nanogenerators. in 2025 Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2025. Digest of Technical Papers - Symposium on VLSI Technology, Institute of Electrical and Electronics Engineers Inc., 2025 Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2025, Kyoto, Japan, 25/6/8. https://doi.org/10.23919/VLSITechnologyandCir65189.2025.11074895

Jung W, Lee HM, Le HP. A Reconfigurable Multi-Level AC-DC/DC-DC Ocean Energy Harvester IC Achieving 77.7% End-to-End Power Efficiency for Triboelectric Nanogenerators. In 2025 Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2025. Institute of Electrical and Electronics Engineers Inc. 2025. (Digest of Technical Papers - Symposium on VLSI Technology). doi: 10.23919/VLSITechnologyandCir65189.2025.11074895

Jung, Woojoong ; Lee, Hyung Min ; Le, Hanh Phuc. / A Reconfigurable Multi-Level AC-DC/DC-DC Ocean Energy Harvester IC Achieving 77.7% End-to-End Power Efficiency for Triboelectric Nanogenerators. 2025 Symposium on VLSI Technology and Circuits, VLSI Technology and Circuits 2025. Institute of Electrical and Electronics Engineers Inc., 2025. (Digest of Technical Papers - Symposium on VLSI Technology).

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abstract = "The proposed integrated ocean energy harvester IC combines a multi-level bias-flip (BF) topology for improved BF efficiency with a high-voltage multi-level full-bridge active rectifier, providing reconfigurability between AC-DC rectification and DC-DC conversion with a single inductor while reducing power stage losses. The proposed reconfigurable multi-level (RML) AC-DC/DC-DC energy harvester IC achieves a peak end-to-end (E2E) power efficiency of 77.7\%, a wide P\{EXT (∼ 2 mW), and an outstanding FoM of 6.63x while supporting input frequency (fTENG) range of 1-50 Hz.",

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A Reconfigurable Multi-Level AC-DC/DC-DC Ocean Energy Harvester IC Achieving 77.7% End-to-End Power Efficiency for Triboelectric Nanogenerators

Abstract

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Bibliographical note

ASJC Scopus subject areas

Access to Document

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