Optimal Design of a Parallel-Connected SC DC-DC Converter with Fluctuation of On-Resistances

Author

Eguchi, Kei ; Zhu, Hongbing

Author_Institution

Dept. of Technol. Educ., Shizuoka Univ., Shizuoka

fYear

2008

fDate

18-20 June 2008

Firstpage

568

Lastpage

568

Abstract

Concerning a parallel-connected switched-capacitor (SC) DC-DC converter, the optimal setting of the duty factor to achieve the best efficiency and the difference in characteristics caused by the fluctuation of on-resistances are analyzed in this paper. The theoretical analyses and circuit simulations show the following results: 1. The converter block realizing a 2/3 x mode of operation can achieve the best efficiency when the duty factor D sime 0.56. 2. In the parallel-connected converter with two converter blocks, the increase of 20 % in the total SC resistance causes the decrease of 2.2 % in the efficiency when R^L = 5Omega.

Keywords

DC-DC power convertors; electric resistance; network synthesis; power electronics; switched capacitor networks; circuit simulation; converter block; duty factor; on-resistance fluctuation; optimal design; parallel-connected switched-capacitor DC-DC converter; Circuit simulation; Clocks; Computer science; Computer science education; DC-DC power converters; Educational technology; Fluctuations; Magnetic analysis; Performance analysis; Switching converters;

fLanguage

English

Publisher

ieee

Conference_Titel

Innovative Computing Information and Control, 2008. ICICIC '08. 3rd International Conference on

Conference_Location

Dalian, Liaoning

Print_ISBN

978-0-7695-3161-8

Electronic_ISBN

978-0-7695-3161-8

Type

conf

DOI

10.1109/ICICIC.2008.405

Filename

4603757