A Sub-10 mV Power Converter With Fully Integrated Self-Start, MPPT, and ZCS Control for Thermoelectric Energy Harvesting

Luo, Zhihong; Zeng, Lei; Lau, Benjamin; Lian, Yong; Heng, Chun-Huat

doi:10.1109/tcsi.2017.2757505

Cited by 65 publications

(38 citation statements)

References 23 publications

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“…Therefore, a number of CMOSbased power conditioning circuits (e.g., converters, rectifiers, etc.) for energy harvesting have been reported, including those allowing multiple energy sources as the input (Camarda et al, 2018;Katic et al, 2018;Li et al, 2018b;Liu et al, 2018a,b,c;Luo et al, 2018;McCullagh, 2018;Shi et al, 2018;Taghadosi et al, 2018;Wang et al, 2018;Yi et al, 2018a,b;Yoon et al, 2018).…”

Section: Cmos Technology-based Harvesters and Systemsmentioning

confidence: 99%

Hybrid, Multi-Source, and Integrated Energy Harvesters

2018

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Energy harvesting is one of the most rapidly growing of the emerging technologies. This field has arrived at the hybrid and multi-source era, where hybrid structures and novel materials are able to boost the energy conversion efficiency and/or make the harvesters capable of benefitting from multiple energy sources simultaneously. Such hybrid and multi-source energy harvesters have not frequently been reviewed in the past, potentially because of the small number of publications compared to that of their single-source and individual counterparts. However, as their number is becoming larger, it is now necessary to give sufficient and frequent reviews of developments in the field. Furthermore, an increasing number of developed energy harvesters are moving out of the laboratory into industrial markets. In practice, energy harvesters need to be integrated with energy storage and/or end users such as sensors and wireless sensor networks. Therefore, the harvester-storage and harvester-sensor integration systems also need to be reviewed frequently. This mini review includes works reported in the first half of 2018 and provides a timely update to the published review. It focuses on the abovementioned hybrid and multi-source energy harvesters as well as on integrated harvesters, energy storage systems and end users (e.g., sensors), including CMOS (complementary metal-oxide-semiconductor) technology-based harvesters and systems.

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Section: Cmos Technology-based Harvesters and Systemsmentioning

confidence: 99%

Hybrid, Multi-Source, and Integrated Energy Harvesters

2018

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“…According to the reference [11,18], a suitable startup voltage V BV 150mV and R BV 5Ω are chosen. Fig.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…With the development of the Internet of Things and wearable devices, the low supply voltage and low power requirements of these applications challenge the power management circuit design. The micro energy harvesting technology, as a reliable solution, can generate electrical energy from other energy sources like solar [1,2,3], vibrations [4], thermal [5,6,7,8,9,10,11,12,13,14,15,16,17,18], piezoelectric [19,20,21] and radio waves [22,23,24]. However, the voltage generated by thermoelectric generators (TEGs) or photovoltaic (PV) panels is only a few tens of millivolts or a few hundred millivolts, which is hard to drive general circuits.…”

Section: Introductionmentioning

confidence: 99%

A self-start circuit with asymmetric inductors reconfigurable technology for dual-output boost converter for energy harvesting

Guo

Chen

Lei

et al. 2020

IEICE Electron. Express

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A self-start circuit with asymmetric inductors reconfigurable technology for dual-output boost converter for energy harvesting is presented in this paper. It is found that the cross-coupled LC oscillator with asymmetric inductors can output much higher voltage than ordinary oscillators. Thus, the asymmetric inductors reconfigurable technology (AIRT) is used in the self-start circuit and a minimum startup voltage of 150mV is achieved. The AIRT realizes dual-output and improves the utilization of chip pins by reusing inductors in the self-start circuit and the boost system. The self-start circuit and the boost system are implemented in a 0.13µm CMOS process and a 73.7% converter efficiency is achieved. The chip area of the boost converter is 0.155mm 2. The area occupied by self-start circuit is only of 0.006mm 2 without other extra energy sources.

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“…Owing to the capacitive bootstrapping technique, the proposed DC-DC converter shows a maximum conversion efficiency of 76.4% over various loads ranging from 1 to 500 μW. Luo et al [96] demonstrate a power converter for a thermoelectric generator with low input voltage integrated with a self-start circuit. Once the chip self-starts at 210 mV, only 7 mV input voltage is required to continuously operate the main converter.…”

Section: Dc-dc Converter For Power Managementmentioning

confidence: 99%

Energy harvesting using thermoelectricity for IoT (Internet of Things) and E-skin sensors

et al. 2019

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With the increasing demand for Internet of Things (IoT) with integrated wireless sensor networks (WSNs), sustainable power supply and management have become important issues to be addressed. Thermal energy in forms of waste heat or metabolic heat is a promising source for reliably supplying power to electronic devices; for instance, thermoelectric power generators are widely being researched as they are able to convert thermal energy into electricity. This paper specifically looks over the application of thermoelectricity as a sustainable power source for IoT including WSNs. Also, we discuss a few thermoelectric systems capable of operating electronic skin (e-skin) sensors despite their low output power from body heat. For a more accurate analysis on body heat harvesting, models of the human thermoregulatory system have been investigated. In addition, some clever designs of heat sinks that can be integrated with thermoelectric systems have also been introduced. For their power management, the integration with a DC-DC converter is addressed to boost its low output voltage to a more usable level.

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A Sub-10 mV Power Converter With Fully Integrated Self-Start, MPPT, and ZCS Control for Thermoelectric Energy Harvesting

Cited by 65 publications

References 23 publications

Hybrid, Multi-Source, and Integrated Energy Harvesters

Hybrid, Multi-Source, and Integrated Energy Harvesters

A self-start circuit with asymmetric inductors reconfigurable technology for dual-output boost converter for energy harvesting

Energy harvesting using thermoelectricity for IoT (Internet of Things) and E-skin sensors

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