Title :
Current sharing in multiphase ZVT boost converter
Author :
De Jódar, Esther ; Villarejo, José A. ; Jiménez, Jacinto ; Moreno, Miguel
Author_Institution :
Dipt. de Tecnol. Electron., Univ. Politec. de Cartagena, Cartagena, Spain
Abstract :
Paralleling converters is a good choice for designing high frequency and high power converters. Nevertheless there must be a mechanism to share the load among phases to achieve all the benefits of parallel operation. A simple method to achieve current sharing is paralleling converters with high impedance. The ZVT Boost converter has interesting properties: Zero Voltage Transition, less semiconductors stress and high input impedance, what can be used as a passive lossless current sharing method. It has been analyzed in this paper, getting a complete model, where the impedance has been studied. A 2-stages 600 W prototype has been designed to test the current sharing.
Keywords :
power convertors; zero voltage switching; current sharing; multiphase ZVT boost converter; parallel converters; zero voltage transition; Capacitance; Converters; Impedance; Inductors; Mathematical model; Power capacitors; Switches; Boost converter; current sharing; paralleled converters; zero-voltage transition;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2010 IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-5286-6
Electronic_ISBN :
978-1-4244-5287-3
DOI :
10.1109/ECCE.2010.5618372
