Fully integrated power-efficient AC-to-DC converter design in inductively-powered biomedical applications

Hyung Min Lee, Maysam Ghovanloo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

16 Citations (Scopus)

Abstract

In this paper we have reviewed several types of integrated AC-to-DC converters which have been widely used for inductively-powered applications. The limitations for achieving high power conversion efficiency (PCE) in each AC-to-DC converter have been considered in order to design highly power-efficient converters for applications that are in need of higher power levels with very low heat dissipation, such as implantable microelectronic devices (IMD). In this paper, we also propose a fully integrated active voltage doubler with offset-controlled high speed comparators, which provides much lower dropout voltage and far better PCE at high frequency (HF) range compared to its passive counterparts. Our active voltage doubler was fabricated in a 0.5-μm 3M2P standard CMOS process, occupying 0.144 mm2 of chip area. With 1.72 V peak AC input at 13.56 MHz, the active voltage doubler provides 2.4 V DC output across the 1 kΩ load, achieving high PCE of 78%.

Original languageEnglish
Title of host publication2011 IEEE Custom Integrated Circuits Conference, CICC 2011
DOIs
Publication statusPublished - 2011
Event33rd Annual Custom Integrated Circuits Conference - The Showcase for Circuit Design in the Heart of Silicon Valley, CICC 2011 - San Jose, CA, United States
Duration: 2011 Sep 192011 Sep 21

Publication series

NameProceedings of the Custom Integrated Circuits Conference
ISSN (Print)0886-5930

Conference

Conference33rd Annual Custom Integrated Circuits Conference - The Showcase for Circuit Design in the Heart of Silicon Valley, CICC 2011
CountryUnited States
CitySan Jose, CA
Period11/9/1911/9/21

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Cite this

    Lee, H. M., & Ghovanloo, M. (2011). Fully integrated power-efficient AC-to-DC converter design in inductively-powered biomedical applications. In 2011 IEEE Custom Integrated Circuits Conference, CICC 2011 [6055374] (Proceedings of the Custom Integrated Circuits Conference). https://doi.org/10.1109/CICC.2011.6055374