Development of power electronics converters based on switched-capacitor circuits

Author

Cheong, S.V. ; Chung, S.H. ; Ioinovici, A.

Author_Institution

Dept. of Electr., Hong Kong Polytech., Hung Hom, Hong Kong

Volume

4

fYear

1992

fDate

3-6 May 1992

Firstpage

1907

Abstract

A new DC-to-DC converter is proposed that uses only switched capacitors. The energy conversion is based on controlled cyclical switching between two phases. The DC gain can be fixed by choosing an appropriate steady-state value of the duty ratio. The output voltage can be kept constant over a large range of loads. The output voltage ripple was less than 5% for most of the load range interval. By avoiding the use of magnetic elements, a small-size and lightweight converter can be built. The circuit is analyzed by using the state-space averaging method. The theoretical results have been confirmed by experimental data

Keywords

network analysis; power convertors; state-space methods; switched capacitor networks; DC gain; DC-to-DC converter; controlled cyclical switching; duty ratio; lightweight converter; power electronics converters; state-space averaging method; switched-capacitor circuits; Circuit topology; DC-DC power converters; Magnetic resonance; Pulse width modulation; Steady-state; Switched capacitor circuits; Switches; Switching converters; Timing; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1992. ISCAS '92. Proceedings., 1992 IEEE International Symposium on

Conference_Location

San Diego, CA

Print_ISBN

0-7803-0593-0

Type

conf

DOI

10.1109/ISCAS.1992.230438

Filename

230438