Title :
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
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;
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
DOI :
10.1109/ICSICT.2008.4734959
