Steady-state analysis of an interleaved boost converter withcoupled inductors
Po-Wa Lee
Yim-Shu Lee
Cheng, D.K.W.
Xiu-Cheng Liu
Dept. of Electron. & Inf. Eng., Hong Kong Polytech., Kowloon;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Aug 2000
Volume: 47,
Issue: 4
On page(s): 787-795
ISSN: 0278-0046
References Cited: 8
CODEN: ITIED6
INSPEC Accession Number: 6685865
Digital Object Identifier: 10.1109/41.857959
Current Version Published: 2002-08-06
Abstract
Boost converters are widely used as power-factor corrected
preregulators. In high-power applications, interleaved operation of two
or more boost converters has been proposed to increase the output power
and to reduce the output ripple. A major design criterion then is to
ensure equal current sharing among the parallel converters. In this
paper, a converter consisting of two interleaved and intercoupled boost
converter cells is proposed and investigated. The boost converter cells
have very good current sharing characteristics even in the presence of
relatively large duty cycle mismatch. In addition, it can be designed to
have small input current ripple and zero boost-rectifier
reverse-recovery loss. The operating principle, steady-state analysis,
and comparison with the conventional boost converter are presented.
Simulation and experimental results are also given
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