Advanced Multiphasing Switched-Capacitor DC-DC Converters

Pushing the Limits of Fully Integrated Power Management

By: Michiel Steyaert, Nicolas Butzen

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Hardcover | 4 July 2020

At a Glance

Hardcover
178 Pages

Dimensions(cm)
23.5 x 15.5 x 1.12

Hardcover

$139.00

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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 that demonstrate record efficiency and power-density, and even a fundamentally new type of switched-capacitor topology that has a continuously-scalable conversion ratio.

Provides single-source reference to the recently-developed Advanced Multiphasing concept;
Enables greatly improved performance and capabilities in fully integrated switched-capacitor converters;
Enables readers to design DC-DC converters, where multiple converter cores are put in parallel and actively interact with each other over several phases to improve their capabilities.

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