Title :
System accuracy analysis of the multiphase voltage regulator module
Author :
Huang, Wenkang ; Clavette, Danny ; Schuellein, George ; Crowther, Mark ; Wallace, John
Author_Institution :
Int. Rectifier, Rhode Island IC Design Center, North Kingstown, RI, USA
Abstract :
This paper analyzes the system accuracy of the multiphase voltage regulator module (VRM), and identifies the influential factors contributing to the system errors. PSpice Monte Carlo analysis, a more realistic statistical method of system accuracy prediction, is used to simulate the load line of the multiphase voltage regulator module for the next generation microprocessors. The Monte Carlo simulation result is compared with a worst-case analysis, a root-sum-square method, and is verified by the experimental results of a three phase synchronous buck converter.
Keywords :
Monte Carlo methods; SPICE; computer power supplies; error analysis; power convertors; systems analysis; voltage regulators; PSpice Monte Carlo analysis; VRM; load line; microprocessor; multiphase voltage regulator module; root-sum-square method; statistical method; system accuracy analysis; system error; three phase synchronous buck converter; worst-case analysis; Analytical models; Circuit simulation; Error correction; Inductors; Microprocessors; Monte Carlo methods; Regulators; Resistors; Statistical analysis; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2003. APEC '03. Eighteenth Annual IEEE
Conference_Location :
Miami Beach, FL, USA
Print_ISBN :
0-7803-7768-0
DOI :
10.1109/APEC.2003.1179295
