Digital-Control Single-Inductor Triple-Output DC–DC Converter With Pre-Sub-Period Inductor-Current Control

Author

Jia, Jingbin ; Leung, Ka Nang

Author_Institution

Dept. of Electron. & Eng., Chinese Univ. of Hong Kong, Hong Kong, China

Volume

27

Issue

4

fYear

2012

fDate

4/1/2012 12:00:00 AM

Firstpage

2028

Lastpage

2042

Abstract

A digital-control single-inductor triple-output (SITO) dc-dc converter is presented in this paper. The dc-dc converter features a proposed pre-sub-period inductor-current control that can deliver more load-current by individual subconverter and reduce crossregulation among different subconverters simultaneously. The proposed digital-control SITO dc-dc converter is implemented by a commercial 0.35-μm CMOS process. The chip area is 1600 μm × 1700 μm. The dc-dc converter is capable to be configured as two buck subconverters and one boost subconverter. The measured maximum power efficiency is 83.5%.

Keywords

CMOS integrated circuits; DC-DC power convertors; digital control; electric current control; CMOS process; boost subconverter; buck subconverters; digital-control SITO DC-DC converter; digital-control single-inductor triple-output DC-DC converter; efficiency 83.5 percent; presub-period inductor-current control; size 0.35 mum; Educational institutions; Electronic mail; Inductors; Power transistors; Semiconductor device measurement; Switches; Transient analysis; Digital-control dc–dc converter; pre-sub-period inductor-current control;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2011.2170221

Filename

6032108