Title :
Comparison of three topologies for VRM fast transient application
Author :
Law, Y.Y. ; Kong, J.H. ; Liu, Joe C P ; Poon, N.K. ; Pong, M.H.
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ., China
Abstract :
This paper compares three topologies for voltage regulator modules (VRMs) for fast transient applications. The topologies are the most popular multi-phase converter, a synchronous rectifier buck converter topology and a recently introduced new stepping inductor converter. Analysis and simulation show that the stepping inductor topology gives the fastest response with minimal amount of output filter capacitance
Keywords :
AC-DC power convertors; DC-DC power convertors; network topology; power supplies to apparatus; rectifying circuits; transient response; voltage regulators; VRM topologies comparison; fast transient application; multi-phase converter; output filter capacitance; stepping inductor converter; synchronous rectifier buck converter topology; voltage regulator modules; Analytical models; Buck converters; Capacitance; Circuit topology; Filters; Inductance; Inductors; Rectifiers; Transient response; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2002. APEC 2002. Seventeenth Annual IEEE
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-7404-5
DOI :
10.1109/APEC.2002.989249
