Title :
Evaluation of AC VRM topologies for high-frequency power distribution systems
Author :
Huber, Laszlo ; Jovanoviæ, Milan M.
Author_Institution :
Power Electron. Lab., Delta Products Corp., NC, USA
Abstract :
In this paper it is shown that the regulated series resonant rectifier (SRR) and series-parallel resonant rectifier (SPRR) with variable resonant capacitance are good candidates for AC voltage regulator modules (VRMs) in high-frequency power distribution systems with a sinusoidal AC bus. Control characteristics of the SRR and SPRR are derived using the sinusoidal approximation method. The effect of the transformer magnetizing inductance is also investigated. Experimental results obtained on a 5 V/8.5 A SRR with variable resonant capacitance designed for a 28 Vrms, 1 MHz sinusoidal AC bus are provided
Keywords :
capacitance; inductance; magnetisation; rectifying circuits; resonant power convertors; transformers; voltage control; voltage regulators; 1 MHz; 28 V; 5 V; 8.5 A; AC VRM topologies; AC voltage regulator modules; high-frequency power distribution systems; regulated series resonant rectifier; series-parallel resonant rectifier; sinusoidal AC bus; sinusoidal approximation method; transformer magnetizing inductance; variable resonant capacitance; Capacitance; Inductance; Magnetic resonance; Power distribution; Power systems; RLC circuits; Rectifiers; Regulators; Switches; Topology;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2001. APEC 2001. Sixteenth Annual IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-6618-2
DOI :
10.1109/APEC.2001.911642
