Unequal Input Voltages Distribution Between the Serial Connected Halfbridges

This paper describes a topology of DC-DC converter consisting in two serial connected half-bridges. Secondary circuit is realized like a conventional full-wave rectifier. The main advantage of this topology is the possibility of dividing the input voltage between the half-bridges. The converter is c...

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Bibliographic Details
Published in:Advances in electrical and electronic engineering 2006-03, Vol.5 (1-2), p.51-54
Main Authors: Ovcarcik, Radovan, Spanik, Pavol, Sul, Robert, Chimento, Filippo
Format: Article
Language:English
Subjects:
converter
dc-dc converter
phase-shift modulation
Online Access:Get full text
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Description
Summary:This paper describes a topology of DC-DC converter consisting in two serial connected half-bridges. Secondary circuit is realized like a conventional full-wave rectifier. The main advantage of this topology is the possibility of dividing the input voltage between the half-bridges. The converter is controlled using the phase-shift modulation, which allows a ZVS operation mode. The voltage unbalance between the inputs causes an important problem of the presented topology. It is necessary to avoid it by the control algorithm, which is described in the text. The practical results show a zero voltage switching technique and the limits of the chosen topology and of the control.
ISSN:1336-1376
1804-3119