DocumentCode
1483251
Title
Comparison of Wide- and High-Frequency Duty-Ratio-to-Inductor-Current Transfer Functions of DC–DC PWM Buck Converter in CCM
Author
Kondrath, Nisha ; Kazimierczuk, Marian K.
Author_Institution
Dept. of Electr. & Comput. Eng., Univ. of Minnesota Duluth, Duluth, MN, USA
Volume
59
Issue
1
fYear
2012
Firstpage
641
Lastpage
643
Abstract
Wide- (WF) and high-frequency (HF) small-signal models are presented for pulsewidth-modulated dc-dc buck converter power stage. An exact duty-ratio-to-inductor-current transfer function is derived using the WF model and compared to an approximate transfer function derived using the HF model for the buck converter power stage in continuous conduction mode. The theoretical results are validated using experimental results.
Keywords
DC-DC power convertors; PWM power convertors; transfer functions; DC-DC PWM buck converter; approximate transfer function; continuous conduction mode; duty-ratio-to-inductor-current transfer functions; high-frequency small-signal models; pulsewidth-modulated dc-dc buck converter power stage; wide-frequency small-signal models; Converters; Current measurement; Delay; Inductors; MOSFET circuits; Pulse width modulation; Transfer functions; Current-mode control; dc–dc converters; power-stage transfer function;
fLanguage
English
Journal_Title
Industrial Electronics, IEEE Transactions on
Publisher
ieee
ISSN
0278-0046
Type
jour
DOI
10.1109/TIE.2011.2134053
Filename
5740342
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