A Versatile Step-Up/Step-Down Switched-Capacitor-Based DC-DC Converter

Chia-Ling WEI; Lu-Yao WU; Hsiu-Hui YANG; Chien-Hung TSAI; Bin-Da LIU; Soon-Jyh CHANG

doi:10.1093/ietele/e91-c.5.809

IEICE Transactions on Electronics

Online ISSN : 1745-1353
Print ISSN : 0916-8524

Regular Section

A Versatile Step-Up/Step-Down Switched-Capacitor-Based DC-DC Converter

Chia-Ling WEI, Lu-Yao WU, Hsiu-Hui YANG, Chien-Hung TSAI, Bin-Da LIU, Soon-Jyh CHANG

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Keywords: DC-DC converter, switched-capacitor, step up, step down, efficiency

JOURNAL RESTRICTED ACCESS

2008 Volume E91.C Issue 5 Pages 809-812

DOI https://doi.org/10.1093/ietele/e91-c.5.809

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Abstract

For battery-powered electronic products, one way to extend battery life is to use a versatile step-up/step-down DC-DC converter. A new versatile step-up/step-down switched-capacitor-based converter structure is proposed, and its efficiency is analyzed. In the step-down case, the efficiency is the same as, or even better than the efficiency of linear regulators.

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