Discrete sliding mode control with overshot correction for interleaved VRM

Author

Figueroa, D. ; Avila, A. ; Vázquez, N.

Author_Institution

Electr. Eng. Dept., Instituto Tecnologico y de Estudios Superiores de Monterrey, Mexico

fYear

2004

fDate

17-22 Oct. 2004

Firstpage

77

Lastpage

83

Abstract

In order to satisfy the new requirements of future microprocessors, the voltage regulator module should have high power densities, high efficiencies, good transient performance and tight output voltage tolerance. This paper presents a discrete-time sliding mode controller for an interleaved VRM due the good characteristics introduced to the complete system. This method presents an alternative control strategy that fulfill the fast dynamic response and limit the VRM output voltage variation under 2% tolerance during the large load transient generated by the processor. The analysis design and simulation are presented.

Keywords

microcomputers; transient response; variable structure systems; voltage regulators; discrete sliding mode control; dynamic response; load transient; microprocessors; overshot correction; power density; transient performance; voltage regulator modules; voltage tolerance; Control systems; Load management; Microprocessors; Rectifiers; Regulators; Robust stability; Sliding mode control; Steady-state; Topology; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Congress, 2004. CIEP 2004. 9th IEEE International

Print_ISBN

0-7803-8790-2

Type

conf

DOI

10.1109/CIEP.2004.1437550

Filename

1437550