Development of a generalized switched-capacitor DC/DC converter with bi-directional power flow

Author

Chung, H. ; Ioinovici, A.

Author_Institution

Dept. of Electr. Eng., City Univ. of Hong Kong, Kowloon, China

Volume

3

fYear

2000

fDate

2000

Firstpage

499

Abstract

This paper presents the generalized circuit structure of a switched-capacitor DC/DC converter that can offer features of voltage step-down, voltage step-up, and bi-directional power flow, Starting with the derivation of a single-capacitor bidirectional converter cell, a converter string is created by cascading a required number of cells, which is determined by the input and output conversion ratio for optimizing the conversion efficiency. The input current is made continuous by operating two strings in parallel and in anti-phase. State-space averaging technique is applied to study the static and dynamic behaviors

Keywords

DC-DC power convertors; state-space methods; switched capacitor networks; bi-directional power flow; conversion efficiency; conversion ratio; converter string; dynamic behavior; generalized switched-capacitor DC/DC converter; single-capacitor bidirectional converter cell; state-space averaging technique; static behavior; voltage step-down; voltage step-up; Bidirectional control; Capacitors; Circuit topology; DC-DC power converters; Electromagnetic interference; Load flow; Power conversion; Switching circuits; Switching converters; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on

Conference_Location

Geneva

Print_ISBN

0-7803-5482-6

Type

conf

DOI

10.1109/ISCAS.2000.856106

Filename

856106