Publication result detail

SMALL-SIGNAL RESPONSES OF DC-DC CONVERTERS

KOLKA, Z.; BIOLKOVÁ, V.

Original Title

SMALL-SIGNAL RESPONSES OF DC-DC CONVERTERS

English Title

SMALL-SIGNAL RESPONSES OF DC-DC CONVERTERS

Type

Paper in proceedings (conference paper)

Original Abstract

Small-signal frequency-domain responses describe behavior of DC-DC converters under smallsignal perturbation of the input voltage or the switch duty ratio. The paper compares responses obtained using the well-known state-space averaging method with reference responses obtained using the harmonic balance method. It will be shown the averaging method provides the most accurate results for the Buck converter in a broad frequency band. On the other hand, inaccuracies occur even below the Nyquist frequency for the Boost and Buck-Boost converters, which follows from the structure of state matrices.

English abstract

Small-signal frequency-domain responses describe behavior of DC-DC converters under smallsignal perturbation of the input voltage or the switch duty ratio. The paper compares responses obtained using the well-known state-space averaging method with reference responses obtained using the harmonic balance method. It will be shown the averaging method provides the most accurate results for the Buck converter in a broad frequency band. On the other hand, inaccuracies occur even below the Nyquist frequency for the Boost and Buck-Boost converters, which follows from the structure of state matrices.

Keywords

Switched DC-DC converters, state-space averaging, harmonic balance, frequency response

Key words in English

Switched DC-DC converters, state-space averaging, harmonic balance, frequency response

Authors

KOLKA, Z.; BIOLKOVÁ, V.

RIV year

2011

Released

26.05.2010

Publisher

AOS Liptovský Mikuláš

Location

Slovakia

ISBN

978-80-8040-399-7

Book

Proc. of NSSS 2010

Pages from

119

Pages to

124

Pages count

5

BibTex

@inproceedings{BUT30422,
  author="Zdeněk {Kolka} and Viera {Biolková}",
  title="SMALL-SIGNAL RESPONSES OF DC-DC CONVERTERS",
  booktitle="Proc. of NSSS 2010",
  year="2010",
  pages="119--124",
  publisher="AOS Liptovský Mikuláš",
  address="Slovakia",
  isbn="978-80-8040-399-7"
}