Title :
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
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;
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
DOI :
10.1109/ISCAS.2000.856106
