Accuracy Analysis of Constant-On Current-Mode DC-DC Converters for Powering Microprocessors

Author

Song, Chunping

Author_Institution

Nat. Semicond. Corp., Santa Clara, CA

fYear

2009

fDate

15-19 Feb. 2009

Firstpage

97

Lastpage

101

Abstract

The constant-on current-mode DC-DC converter is widely used for powering microprocessors because of its fast loading transient response. But the DC regulation accuracy performance of this kind of converter is still unknown. In this paper, the accuracy of constant-on current-mode DC-DC converters for power microprocessors is thoroughly analyzed. The inaccuracy issue is pointed out and the root cause is identified. In addition, the analysis shows how the operation parameters, the components value, and the parasitic parameters affect this regulation inaccuracy. Finally the experimental results show the effectiveness of this accuracy analysis.

Keywords

DC-DC power convertors; microprocessor chips; DC regulation; constant-on current-mode DC-DC converters; microprocessors; parasitic parameters affect; transient response; Capacitors; DC-DC power converters; Inductors; Microprocessors; Paramagnetic resonance; Regulators; Transient analysis; Transient response; Virtual colonoscopy; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2009. APEC 2009. Twenty-Fourth Annual IEEE

Conference_Location

Washington, DC

ISSN

1048-2334

Print_ISBN

978-1-4244-2811-3

Electronic_ISBN

1048-2334

Type

conf

DOI

10.1109/APEC.2009.4802639

Filename

4802639