power management

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A Wide-Dynamic-Range Photovoltaic Energy Harvester With Adaptive Power-Scalable MPPT Control and Direct Power-to-Digital Converter

A Wide-Dynamic-Range Photovoltaic Energy Harvester With Adaptive Power-Scalable MPPT Control and Direct Power-to-Digital Converter 150 150
Author(s): Yuyan Liu, Huajun Zhang, Mustafa Becermis, Jieyu Liao, Mohit Dandekar, Kofi A. A. Makinwa, Qinwen Fan

Abstract:

This article presents a photovoltaic energy harvester (PVEH) that achieves high maximum power point tracking (MPPT) efficiency and power conversion efficiency across a $100~000{\times }$ input power dynamic range (DR) (from $10~{\mu }$ W to 1W). Wide-dynamic-range operation is challenging due to the inherent tradeoff between MPPT accuracy and controller power consumption. …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 12
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3675521
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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3D-IC Chiplet Integrated Power Supply With LDO, SCVR, and Buck DC–DC Converter

3D-IC Chiplet Integrated Power Supply With LDO, SCVR, and Buck DC–DC Converter 150 150
Author(s): Xiaosen Liu, Xichen Sun, Renwei Chen, Haozhe Zhang, Zhoutong Liu, Yan Wang

Abstract:

With the rapid advancement of chiplet and heterogenous integration technologies, delivering power through the package, redistribution layer (RDL), and chip layers in 3-D space has become a fundamental challenge for high-performance SoCs. This letter provides a comprehensive overview of power delivery solutions, including low-dropout regulator (LDOs), switched capacitor converters, and …

Published in: IEEE Solid-State Circuits Letters
Page(s): 341 – 344
Year of Publication: 2025
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2025.3624096
Publisher: IEEE

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