An improved topology of inductor-switching DC-DC converter

Author

Senanayake, Thilak ; Ninomiya, Tamotsu

Author_Institution

Dept. of Electr. & Electron. Syst. Eng., Kyushu Univ., Fukuoka, Japan

Volume

52

Issue

3

fYear

2005

fDate

6/1/2005 12:00:00 AM

Firstpage

869

Lastpage

878

Abstract

An improved version of an inductor-switching fast-response dc-dc converter is presented that will provide the requirements and features of the new generation of microprocessor and digital systems. Lower output voltage, higher output current, and smaller output voltage ripple requirements have greatly increased the difficulty of the power supply design. To further increase the problem, power-saving "stop-clock" modes of the microprocessor has demanded faster and more stable transient response from the dc-dc converter. A novel method of inductor switching is applied to a dc-dc converter, and it provides the prominent features of current amplification and absorption during the heavy burden of load transients. The design and simulation of the concept is verified by experiment with a 12-V input and 3.3-V/30-A output converter.

Keywords

DC-DC power convertors; power inductors; power supply circuits; switching convertors; transient response; voltage control; 12 V; 3.3 V; 30 A; DC-DC converter; analog circuit; buck topology; current amplification; digital systems; inductor-switching; load transients; microprocessor; power supply design; power-saving stop-clock modes; transient response; voltage control; Absorption; DC-DC power converters; Digital systems; Inductors; Microprocessors; Power supplies; Switching converters; Topology; Transient response; Voltage; Analog circuit; dc–dc power conversion; inductor switching; voltage control;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/TIE.2005.847572

Filename

1435697