Boost converter with high voltage gain using a switched capacitor circuit

Author

Abutbul, Oded ; Gherlitz, Amir ; Berkovich, Yefim ; Ioinovici, Adrian

Author_Institution

Holon Acad. Inst. of Technol., Israel

Volume

3

fYear

2003

fDate

25-28 May 2003

Abstract

An integrated boost switched-capacitor (SC) converter able to step-up the line by ten times is presented. It is formed by a SC-circuit containing three capacitors and a boost stage. The two power stages are not connected in cascade, but they are integrated for achieving an overall high efficiency. The SC-circuit allows for a steep voltage ratio; for efficiency´s purpose, it is not regulated. The boost stage gives the line and load regulation, using a classical PWM control. The theoretical results based on an energy-balance approach and simulation using the exact cyclical differential equations of the converter are confirmed by the experimental results on a prototype of 35 W power.

Keywords

PWM power convertors; differential equations; nonlinear network analysis; switched capacitor networks; 35 W; PWM control; boost switched-capacitor converter; cyclical differential equations; energy-balance approach; high efficiency; high voltage gain; integrated boost SC converter; line regulation; load regulation; power stages; simulation; Batteries; Circuit topology; Communication industry; Pulse width modulation; Switched capacitor circuits; Switches; Switching circuits; Switching converters; Telecommunications; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on

Print_ISBN

0-7803-7761-3

Type

conf

DOI

10.1109/ISCAS.2003.1205014

Filename

1205014