A new switched-capacitor dc-dc converter with improved line and load regulations

Author

Zhu, Guangyong ; Wei, Huai ; Batarseh, Issa ; Ioinovici, Adrian

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Central Florida, Orlando, FL, USA

Volume

5

fYear

1999

fDate

1999

Firstpage

234

Abstract

A new switched-capacitor (SC) step-down dc-dc converter is presented. It exhibits smaller size, lighter weight and stronger regulation capabilities than previous SC converters of the same power ratings. Its operation principles and analysis are described in detail and an accurate as well as an approximate expression governing input, output and circuit parameters is presented. A discussion on the achievable conversion efficiency is also given. A 12 V/5 V prototype based on the proposed topology has been implemented and tested. Theoretical prediction of its regulation and efficiency is verified experimentally

Keywords

DC-DC power convertors; load regulation; network parameters; switched capacitor networks; 12 V; 5 V; circuit parameters; conversion efficiency; line regulation; load regulation; power rating; size; step-down dc-dc converter; switched-capacitor dc-dc converter; weight; Circuit topology; DC-DC power converters; Inductors; Magnetic switching; Power supplies; Switched capacitor networks; Switched-mode power supply; Switches; Switching converters; Switching frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on

Conference_Location

Orlando, FL

Print_ISBN

0-7803-5471-0

Type

conf

DOI

10.1109/ISCAS.1999.777553

Filename

777553