Publication detail

On Accuracy of Averaged Control-To-Output Frequency Responses of Switched DC-DC Converters

KOLKA, Z. BIOLEK, D. KOVÁŘ, J.

Original Title

On Accuracy of Averaged Control-To-Output Frequency Responses of Switched DC-DC Converters

English Title

On Accuracy of Averaged Control-To-Output Frequency Responses of Switched DC-DC Converters

Type

conference paper

Language

en

Original Abstract

The control-to-output (CTO) frequency response of switched DC-DC converter describes how the smallsignal harmonic perturbation of the converter switching duty ratio influences the converter output. In the paper, the CTO frequency response obtained by the method of harmonic balance is compared with the CTO response, obtained by applying the well-known State-Space- Averaging (SSA) technique to switched converters. These comparisons are made for the Buck-, Boost-, and Buck- Boost- type converters. Conclusions about the accuracy of the SSA method are drawn within the context of the character of the state matrices of the converter.

English abstract

The control-to-output (CTO) frequency response of switched DC-DC converter describes how the smallsignal harmonic perturbation of the converter switching duty ratio influences the converter output. In the paper, the CTO frequency response obtained by the method of harmonic balance is compared with the CTO response, obtained by applying the well-known State-Space- Averaging (SSA) technique to switched converters. These comparisons are made for the Buck-, Boost-, and Buck- Boost- type converters. Conclusions about the accuracy of the SSA method are drawn within the context of the character of the state matrices of the converter.

Keywords

Switched DC-DC converter, averaging, SSA, spectrum, CTO frequency response.

RIV year

2010

Released

19.04.2010

Publisher

Brno University of Technology

Location

Brno

ISBN

978-1-4244-6319-0

Book

Proceedings of 20th International Conference Radioelektronika 2010

Pages from

213

Pages to

216

Pages count

4

BibTex


@inproceedings{BUT30421,
  author="Zdeněk {Kolka} and Dalibor {Biolek} and Jan {Kovář}",
  title="On Accuracy of Averaged Control-To-Output Frequency Responses of Switched DC-DC Converters",
  annote="The control-to-output (CTO) frequency response of switched DC-DC converter describes how the smallsignal harmonic perturbation of the converter switching duty ratio influences the converter output. In the paper, the CTO frequency response obtained by the method of harmonic balance is compared with the CTO response, obtained by applying the well-known State-Space- Averaging (SSA) technique to switched converters. These comparisons are made for the Buck-, Boost-, and Buck- Boost- type converters. Conclusions about the accuracy of the SSA method are drawn within the context of the character of the state matrices of the converter.",
  address="Brno University of Technology",
  booktitle="Proceedings of 20th International Conference Radioelektronika 2010",
  chapter="30421",
  howpublished="print",
  institution="Brno University of Technology",
  year="2010",
  month="april",
  pages="213--216",
  publisher="Brno University of Technology",
  type="conference paper"
}