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Advanced Multiphasing Switched-Capacitor DC-DC Converters (eBook, PDF)

Pushing the Limits of Fully Integrated Power Management

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This book gives a detailed analysis of switched-capacitor DC-DC converters that are entirely integrated on a single chip and establishes that these converters are mainly limited by the large parasitic coupling, the low capacitor energy density, and the fact that switched-capacitor converter topologies only have a fixed voltage conversion ratio. The authors introduce the concept of Advanced Multiphasing as a way to circumvent these limitations by having multiple out-of-phase parallel converter cores interact with each other to minimize capacitor charging losses, leading to several techniques th...

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Nicolas Butzen was born in Wilrijk, Belgium, in 1990. He received the M.Sc. and Ph.D. degrees in electrical engineering from KU Leuven, Heverlee, Belgium, in 2013 and 2018, respectively. He is currently a Power Delivery Research Scientist with Intel Corporation's Circuits Research Lab (CRL), Hillsboro, OR, USA. His research interests include power management circuits in CMOS and monolithic switched-capacitor dc-dc converters.

Dr. Butzen was a recipient of several awards for his innovative work, including Third and First Place at the SSCS Benelux Chapter Chip Design Contest from 2016 to 2017 and from 2017 to 2018, respectively, the ISSCC 2016 Distinguished-Technical-Paper Award, the ISSCC 2017 Jan Van Vessem Award for Outstanding European Paper, and the IEEE SSCS 2017-2018 Predoctoral Achievement Award.

Michiel Steyaert received the master's degree in electrical-mechanical engineering and the Ph.D. degree in electronics from KU Leuven, Heverlee, Belgium, in 1983 and 1987, respectively. In 1988, he was a Visiting Assistant Professor with the University of California at Los Angeles, Los Angeles, CA, USA. In 1989, he was a Research Associate with the National Fund of Scientific Research, Belgium, and a Senior Research Associate in 1992. He was a Research Director with the Laboratory ESAT, KU Leuven, in 1996, where he was a part-time Associate Professor from 1989 to 1996. He is currently a Full Professor with KU Leuven. He was an IWONL Project Researcher with the Laboratory ESAT, KU Leuven, in 1987, where he is responsible for several industrial projects in the field of analog micro power circuits. He has authored or co-authored over 500 papers in international journals or proceedings and co-authored over 24 books. His current research interests include high-performance and high-frequency analog integrated circuits for telecommunication systems and analog signal processing. From 1983 to 1986, he was a Research Assistant withthe Laboratory ESAT, KU Leuven, under an IWNOL Fellowship (Belgian National Foundation for Industrial Research).

Dr. Steyaert was the Chair of the Electrical Engineering Department from 2005 to 2012. He is currently a Dean of the Faculty of Engineering. He was a recipient of the 1990 and 2001 European Solid-State Circuits Conference Best Paper Award, the 1991 and the 2000 NFWO Alcatel-Bell-Telephone Award for innovative work in integrated circuits for telecommunications, the 1995 and 1997 IEEE-ISSCC Evening Session Award, the 1999 IEEE Circuit and Systems Society Guillemin-Cauer Award, the 50th Anniversary Top ISSCC Contributors Award in 2003, and the 60th Anniversary Top ISSCC Contributors Award in 2013 for his strong and sustained contributions.