Investigation of switched-capacitorized DC/DC converters

Author

Luo, Fang Lin ; Ye, Hong

Author_Institution

EEE, Nanyang Technol. Univ., Singapore, Singapore

fYear

2009

fDate

17-20 May 2009

Firstpage

1270

Lastpage

1276

Abstract

Switched capacitor DC/DC converters are new prototype of DC/DC Conversion technology. Since switched capacitor can be integrated into a power IC chip, consequently, these converters have small size and high power density. Switched capacitor can be used in voltage-lift technique to construct DC/DC converters. The clue is that for the converters operating in discontinuous input current mode (DICM) the switched capacitors can be charged during the input current discontinuous period. The switched capacitors are charged to the source voltage during the switch-off period. They will join the conversion operation during switch-on period, and the stored energy in them will be delivered through further elements to the load. These converters are called switched-capacitorized DC/DC converters. Simulation and experimental results are provided for verification of this design.

Keywords

DC-DC power convertors; integrated circuit design; integrated circuit modelling; power capacitors; power integrated circuits; DC/DC converters; discontinuous input current mode; high power density; power IC chip; switched capacitor; Capacitors; Circuit simulation; DC-DC power converters; Equivalent circuits; Power integrated circuits; Prototypes; Switches; Switching circuits; Switching converters; Voltage; DC-DC Converters; Discontinuous Input Current Mode (DICM); Switched-Capacitor; Switched-Capacitorized (SC) Converters; Voltage-Lift Technique;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference, 2009. IPEMC '09. IEEE 6th International

Conference_Location

Wuhan

Print_ISBN

978-1-4244-3556-2

Electronic_ISBN

978-1-4244-3557-9

Type

conf

DOI

10.1109/IPEMC.2009.5157581

Filename

5157581