A triboelectric nanogenerator energy harvesting system based on load-aware control for input power from 2.4 μW to 15.6 μW

Karim Rawy; Ruchi Sharma; Hong Joon Yoon; Usman Khan; Sang Woo Kim; Tony Tae Hyoung Kim

doi:10.1016/j.nanoen.2020.104839

A triboelectric nanogenerator energy harvesting system based on load-aware control for input power from 2.4 μW to 15.6 μW

Karim Rawy, Ruchi Sharma, Hong Joon Yoon, Usman Khan, Sang Woo Kim, Tony Tae Hyoung Kim

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

This paper presents a triboelectric nanogenerator (TENG) energy harvesting system for ultra-low power applications. We propose a load-aware control algorithm to improve the power conversion efficiency as well as the voltage conversion efficiency. The control algorithm minimizes the conduction and switching losses within a switched capacitor charge pump (SCCP) by modulating its switching frequency based on the load condition. Furthermore, a hysteresis input regulation control was developed for preventing breakdown. The overall system was optimized by utilizing a compact spice model from the physical mechanisms of the employed TENG. The fabricated test chip in 65-nm process technology provides a regulated output voltage of 1.2 V with power conversion efficiency of 88% at 30 Hz excitation frequency when the TENG output voltage is 2.5 V.

Original language	English
Article number	104839
Journal	Nano Energy
Volume	74
DOIs	https://doi.org/10.1016/j.nanoen.2020.104839
Publication status	Published - 2020 Aug

Bibliographical note

Funding Information:
This work was supported by the Singapore International Graduate Award and Ministry of Education, Singapore , under grant AcRF TIER 1- 2018-T1-002-105 ( RG174/18 (S) ).

Publisher Copyright:
© 2020 Elsevier Ltd

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Materials Science(all)
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.nanoen.2020.104839

Cite this

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title = "A triboelectric nanogenerator energy harvesting system based on load-aware control for input power from 2.4 μW to 15.6 μW",

abstract = "This paper presents a triboelectric nanogenerator (TENG) energy harvesting system for ultra-low power applications. We propose a load-aware control algorithm to improve the power conversion efficiency as well as the voltage conversion efficiency. The control algorithm minimizes the conduction and switching losses within a switched capacitor charge pump (SCCP) by modulating its switching frequency based on the load condition. Furthermore, a hysteresis input regulation control was developed for preventing breakdown. The overall system was optimized by utilizing a compact spice model from the physical mechanisms of the employed TENG. The fabricated test chip in 65-nm process technology provides a regulated output voltage of 1.2 V with power conversion efficiency of 88% at 30 Hz excitation frequency when the TENG output voltage is 2.5 V.",

author = "Karim Rawy and Ruchi Sharma and Yoon, {Hong Joon} and Usman Khan and Kim, {Sang Woo} and Kim, {Tony Tae Hyoung}",

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AU - Khan, Usman

AU - Kim, Sang Woo

AU - Kim, Tony Tae Hyoung

N1 - Funding Information: This work was supported by the Singapore International Graduate Award and Ministry of Education, Singapore , under grant AcRF TIER 1- 2018-T1-002-105 ( RG174/18 (S) ). Publisher Copyright: © 2020 Elsevier Ltd

PY - 2020/8

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N2 - This paper presents a triboelectric nanogenerator (TENG) energy harvesting system for ultra-low power applications. We propose a load-aware control algorithm to improve the power conversion efficiency as well as the voltage conversion efficiency. The control algorithm minimizes the conduction and switching losses within a switched capacitor charge pump (SCCP) by modulating its switching frequency based on the load condition. Furthermore, a hysteresis input regulation control was developed for preventing breakdown. The overall system was optimized by utilizing a compact spice model from the physical mechanisms of the employed TENG. The fabricated test chip in 65-nm process technology provides a regulated output voltage of 1.2 V with power conversion efficiency of 88% at 30 Hz excitation frequency when the TENG output voltage is 2.5 V.

AB - This paper presents a triboelectric nanogenerator (TENG) energy harvesting system for ultra-low power applications. We propose a load-aware control algorithm to improve the power conversion efficiency as well as the voltage conversion efficiency. The control algorithm minimizes the conduction and switching losses within a switched capacitor charge pump (SCCP) by modulating its switching frequency based on the load condition. Furthermore, a hysteresis input regulation control was developed for preventing breakdown. The overall system was optimized by utilizing a compact spice model from the physical mechanisms of the employed TENG. The fabricated test chip in 65-nm process technology provides a regulated output voltage of 1.2 V with power conversion efficiency of 88% at 30 Hz excitation frequency when the TENG output voltage is 2.5 V.

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A triboelectric nanogenerator energy harvesting system based on load-aware control for input power from 2.4 μW to 15.6 μW

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

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