A Family of Two-Switch Boosting Switched-Capacitor Converters

Author

Bin Wu ; Shouxiang Li ; Ma Smedley, Keyue ; Singer, Sigmond

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Univ. of California, Irvine, Irvine, CA, USA

Volume

30

Issue

10

fYear

2015

fDate

Oct. 2015

Firstpage

5413

Lastpage

5424

Abstract

A family of “Two-Switch Boosting Switched-Capacitor Converters (TBSC)” is introduced, which distinguishes itself from the prior arts by symmetrically interleaved operation, reduced output ripple, low yet even voltage stress on components, and systematic expandability. Along with the topologies, a modeling method is formulated, which provokes the converter regulation method through duty cycle and frequency adjustment. In addition, the paper also provides guidance for circuit components and parameter selection. A 1-kW 3X TBSC was built to demonstrate the converter feasibility, regulation capability via duty cycle and frequency, which achieved a peak efficiency of 97.5% at the rated power.

Keywords

power convertors; converter regulation method; duty cycle; efficiency 97.5 percent; frequency adjustment; power 1 kW; two-switch boosting switched-capacitor converters; Capacitors; Integrated circuit modeling; Pulse width modulation; Stress; Switches; Topology; Voltage control; Frequency modulation; TBSC; frequency modulation; interleaved; modeling; switched-capacitor; two-switch boosting switched-capacitor converters (TBSC);

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2014.2375311

Filename

6971218