Maximum power point trackers

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A Multi-Channel Thermoelectric Energy Harvesting Interface Realizing Uneven-Input MPPT and 62-mV Start-Up

A Multi-Channel Thermoelectric Energy Harvesting Interface Realizing Uneven-Input MPPT and 62-mV Start-Up 150 150
Author(s): Yunzhe Yang, Mo Huang, Sijun Du

Abstract:

A thermoelectric energy harvesting (TEH) interface for applications using multiple thermoelectric generators (TEGs) is proposed. To improve the maximum power point tracking (MPPT) efficiency under uneven temperature distributions across a large surface, the TEH interface employs a single-inductor multi-channel architecture that individually harvests energy from each TEG. Furthermore, it incorporates …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3733544
Publisher: IEEE

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A Self-Powered 21-Component Transient Piezoelectric Energy Harvester With Single-Stage MPPT and Near-Zero Standby Consumption

A Self-Powered 21-Component Transient Piezoelectric Energy Harvester With Single-Stage MPPT and Near-Zero Standby Consumption 150 150
Author(s): Xiudeng Wang, Haohao Shi, Youlan Zeng, Libo Qian, Yang Liu, Guangqian Zhu, Yongyuan Li, Zhangming Zhu

Abstract:

This article presents a rectifierless synchronous inversion and optimal charge extraction (SIOCE) interface with single-stage maximum power point tracking (MPPT) for intermittent vibrations, which are common in real-world applications. Unlike conventional rectifiers that suffer from standby power consumption or rely on inefficient multi-stage conversion, the proposed SIOCE interface circuit decouples …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 10
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3715865
Publisher: IEEE

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A Dual-Band Simultaneous RF Energy Harvesting System With Globally Optimized 3-D MPPT and Efficiency Enhancement

A Dual-Band Simultaneous RF Energy Harvesting System With Globally Optimized 3-D MPPT and Efficiency Enhancement 150 150
Author(s): Xiaguang Li, Qing Miao, Shiheng Yang, Tianting Zhao, Sijun Du, Xiaoyang Zeng, Zhiyuan Chen

Abstract:

This article presents a globally optimized radio frequency (RF) energy harvesting system that leverages the novel concepts of 3-D maximum power point tracking (3-D MPPT) and collaborative source reconfiguration to achieve high MPPT accuracy and a wide input power range. The proposed 3-D MPPT coordinates the energy sources, optimizes the …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 12
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3662153
Publisher: IEEE

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A Fully-Integrated Wireless Ingestible CMOS Drug-Delivery Chip With Electrochemical Energy Harvesting and pH-Adaptive MPPT for Personalized Therapeutics

A Fully-Integrated Wireless Ingestible CMOS Drug-Delivery Chip With Electrochemical Energy Harvesting and pH-Adaptive MPPT for Personalized Therapeutics 150 150
Author(s): So-Yoon Yang, Deniz Umut Yildirim, Saransh Sharma, Donghyeon Han, Rishabh Mittal, Husna T. Ellis, Jaehong Jung, Eunseok Lee, Yubin Cai, Giovanni Traverso, Anantha P. Chandrakasan

Abstract:

The rapid growth of personalized medicine has driven increased demand for battery-free, energy-efficient ingestible electronics for on-demand gastrointestinal (GI) drug delivery. This article presents the first fully-integrated, battery-free ingestible CMOS platform that harvests energy from a galvanic cell (GC) through a reconfigurable switched-capacitor converter, with pH-adaptive maximum power point tracking (…

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1082 – 1095
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3647275
Publisher: IEEE

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