Analysis and modeling of peak-current-mode-controlled buckconverter in DICM
Suntio, T.
Electron. Lab., Oulu Univ.;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Feb 2001
Volume: 48,
Issue: 1
On page(s): 127-135
ISSN: 0278-0046
References Cited: 15
CODEN: ITIED6
INSPEC Accession Number: 6860887
Digital Object Identifier: 10.1109/41.904572
Current Version Published: 2002-08-07
Abstract
This paper presents a unified method to obtain both small- and
large-signal models for a peak-current-mode-controlled buck converter
which accurately predict its behavior. The models show that the
peak-current-mode transfer functions are effectively of first order, as
can be expected due to the heavy bounding of inductor current. The
large-signal behavior can be accurately predicted by using a simple
algebraic equation including the mode limit of basic-switching-frequency
operation as well as the input-output relations. It is also pointed out
that a buck converter can have stable open-loop as well as closed-loop
operation modes at basic switching frequency and at its even and odd
harmonics. The subharmonic modes are, however, not controllable in a
conventional way
Index
Terms
Available to subscribers and IEEE members.
References
Available to subscribers and IEEE members.
Citing Documents
Available to subscribers and IEEE members.
Cart
