Design of high efficiency buck-boost controller IC

Author

Jiana, Lou ; Menglian, Zhao ; Xiaobo, Wu ; Xiaolang, Yan

Author_Institution

Inst. of VLSI Design, Zhejiang Univ., Hangzhou, China

fYear

2008

fDate

20-23 Oct. 2008

Firstpage

2012

Lastpage

2015

Abstract

In order to increase the efficiency of portable devices powered by lithium-ion battery, a high efficiency multi-mode buck-boost controller IC is proposed in this paper. By applying a cascade buck-boost prototype, it not only realizes seamless transition between step up and down functions, but also achieves high efficiency over the entire load range by introducing BURST mode operation. System design and modeling have achieved and the simulation results were consistent with expectations well.

Keywords

cascade networks; integrated circuit design; power convertors; power integrated circuits; power supply circuits; secondary cells; BURST mode operation; cascade buck-boost prototype; control theory; high efficiency buck-boost controller IC; lithium-ion battery powered portable devices; multimode buck-boost controller IC; step down/step up converter; Automatic control; Batteries; Buck converters; Clocks; Inductors; Integrated circuit modeling; Power system modeling; Prototypes; Resistors; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State and Integrated-Circuit Technology, 2008. ICSICT 2008. 9th International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-2185-5

Electronic_ISBN

978-1-4244-2186-2

Type

conf

DOI

10.1109/ICSICT.2008.4734959

Filename

4734959