A new ring type switched-capacitor DC-DC converter with low inrush current and low ripple

Author

Hara, Noriaki ; Oota, Ichirou ; Ueno, Fumio

Author_Institution

Kumamoto Nat. Coll. of Technol., Japan

Volume

2

fYear

1998

fDate

17-22 May 1998

Firstpage

1536

Abstract

A new switched-capacitor(SC) DC-DC converter is presented. This converter consists of n ring-shaped capacitors connected by switches. The converter has the following features as compared with conventional SC converters: (1) since only one capacitor is charged at one time, the inrush current and the input current ripple are small; (2) the converter has a smaller number of switches; (3) all floating switches form totem-pole connections with grounded switches, thus driving them is easy; and (4) since the generation of the magnetic field is few, together with some signal processing circuits, it is possible to be implemented in one chip IC form such as a system-on-chip

Keywords

DC-DC power convertors; power capacitors; power integrated circuits; power semiconductor switches; switched capacitor networks; capacitor charging; current ripple; floating switches; grounded switches; inrush current; power IC; ring-type switched-capacitor DC-DC power converter; signal processing circuits; system-on-chip; totem-pole connections; DC-DC power converters; Magnetic fields; Magnetic switching; Signal generators; Signal processing; Surges; Switched capacitor circuits; Switches; Switching circuits; Switching converters;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE

Conference_Location

Fukuoka

ISSN

0275-9306

Print_ISBN

0-7803-4489-8

Type

conf

DOI

10.1109/PESC.1998.703379

Filename

703379