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
fDate :
5/1/2007 12:00:00 AM
Abstract :
The paper analyzes the system accuracy of the multiphase voltage regulator module and identifies the influential factors contributing to load line errors. The load line equations for a three-phase buck converter are derived and applied to the worst-case and root-sum-square analyses of load line accuracy. The calculation results are compared with SPICE Monte Carlo simulation, a more realistic statistical method of system accuracy prediction, and verified by the experimental results of the three-phase synchronous buck converter
Keywords :
Monte Carlo methods; power convertors; voltage regulators; Monte Carlo simulation; SPICE; load line equations; multiphase voltage regulator module; root-sum-square analyses; statistical method; three-phase synchronous buck converter; worst-case analyses; Buck converters; Circuits; Computer errors; Microprocessors; Performance analysis; Power supplies; Regulators; SPICE; Statistical analysis; Voltage control; Adaptive voltage positioning (AVP); Monte Carlo method; SPICE; computer power supplies; error analysis; load line; multiphase voltage regulator module (VRM); power converters; root-sum-square method; statistical method; system error; systems analysis; three phase synchronous buck converter; voltage regulators; worst case method;
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2007.897098
