83.9% Efficiency 100-mV Self-Startup Boost Converter for Thermoelectric Energy Harvester in IoT Applications

Zhongxia Shang; Yang Zhao; Wei Gou; Li Geng; Yong Lian

doi:10.1109/TCSII.2020.2999331

83.9% Efficiency 100-mV Self-Startup Boost Converter for Thermoelectric Energy Harvester in IoT Applications

Zhongxia Shang
, Yang Zhao
, Wei Gou
, Li Geng
, Yong Lian

Faculty of Electronic and Information Engineering

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

21 Scopus citations

Abstract

This brief presents a boost converter with high efficiency for thermo-electrical energy generator (TEG). An on-time calibration based pulse skipping modulation (OTC-PSM) scheme is proposed to reduce the power of the controller. A hardware-efficient maximum power point tracking (MPPT) circuit is introduced for the constant internal resistance source of TEG. The proposed design has been implemented in a standard 180 nm CMOS process, achieving a high efficiency of 83.9% at 120mV input voltage and output power of 600 $\mu \text{W}$. The proposed OTC-PSM scheme saves considerable power in achieving high efficiency as well as low output ripple. Also, the proposed MPPT is simple and easy to implement for low cost.

Original language	English
Article number	9105060
Pages (from-to)	1654-1658
Number of pages	5
Journal	IEEE Transactions on Circuits and Systems II: Express Briefs
Volume	67
Issue number	9
DOIs	https://doi.org/10.1109/TCSII.2020.2999331
State	Published - Sep 2020

Keywords

IoT
Maximum power point tracking
TEG
on-time calibration
pulse skipping modulation

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10.1109/TCSII.2020.2999331

Cite this

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title = "83.9\% Efficiency 100-mV Self-Startup Boost Converter for Thermoelectric Energy Harvester in IoT Applications",

abstract = "This brief presents a boost converter with high efficiency for thermo-electrical energy generator (TEG). An on-time calibration based pulse skipping modulation (OTC-PSM) scheme is proposed to reduce the power of the controller. A hardware-efficient maximum power point tracking (MPPT) circuit is introduced for the constant internal resistance source of TEG. The proposed design has been implemented in a standard 180 nm CMOS process, achieving a high efficiency of 83.9\% at 120mV input voltage and output power of 600 \$\textbackslash{}mu \textbackslash{}text\{W\}\$. The proposed OTC-PSM scheme saves considerable power in achieving high efficiency as well as low output ripple. Also, the proposed MPPT is simple and easy to implement for low cost.",

keywords = "IoT, Maximum power point tracking, TEG, on-time calibration, pulse skipping modulation",

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AU - Geng, Li

AU - Lian, Yong

PY - 2020/9

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AB - This brief presents a boost converter with high efficiency for thermo-electrical energy generator (TEG). An on-time calibration based pulse skipping modulation (OTC-PSM) scheme is proposed to reduce the power of the controller. A hardware-efficient maximum power point tracking (MPPT) circuit is introduced for the constant internal resistance source of TEG. The proposed design has been implemented in a standard 180 nm CMOS process, achieving a high efficiency of 83.9% at 120mV input voltage and output power of 600 $\mu \text{W}$. The proposed OTC-PSM scheme saves considerable power in achieving high efficiency as well as low output ripple. Also, the proposed MPPT is simple and easy to implement for low cost.

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KW - on-time calibration

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83.9% Efficiency 100-mV Self-Startup Boost Converter for Thermoelectric Energy Harvester in IoT Applications

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Keywords

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