Voltage regulator module (VRM) transient modeling and analysis

Author

Wong, Pit-Leong ; Lee, Fred C. ; Zhou, Xunwei ; Chen, Jiabin

Author_Institution

Center for Power Electron. Syst., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA

Volume

3

fYear

1999

fDate

1999

Firstpage

1669

Abstract

In this paper, the transient response of the voltage regulator module (VRM) output voltage when the processor has a sudden load change is analyzed. The parasitic parameters play important roles in the transient. The system can be divided into several resonant loops. Each loop can be considered approximately as a decoupled second order system. The voltage drop of the capacitor is analyzed. By reducing the inductance and increasing converter bandwidth, the transient of VRM can be improved

Keywords

control system analysis; power convertors; transient analysis; transient response; voltage control; voltage regulators; capacitor voltage drop; decoupled second order system; inductance reduction; output voltage transient response; power converter bandwidth; resonant loops; transient analysis; transient modelling; voltage regulator module; Capacitors; Clocks; Energy consumption; Frequency; Low voltage; Power supplies; Regulators; Resonance; Transient analysis; Transient response;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 1999. Thirty-Fourth IAS Annual Meeting. Conference Record of the 1999 IEEE

Conference_Location

Phoenix, AZ

ISSN

0197-2618

Print_ISBN

0-7803-5589-X

Type

conf

DOI

10.1109/IAS.1999.805965

Filename

805965