Publication detail

Averaged modeling of switched DC-DC converters based on Spice models of semiconductor switches

BIOLEK, D. BIOLKOVÁ, V. KOLKA, Z.

Original Title

Averaged modeling of switched DC-DC converters based on Spice models of semiconductor switches

English Title

Averaged modeling of switched DC-DC converters based on Spice models of semiconductor switches

Type

conference paper

Language

en

Original Abstract

A generalization of the model of PWM (Pulse Width Modulation) switch according to Dijk et al. [1] for averaged modeling of switched DC-DC converters is proposed. The original model by Dijk consists of the controlled current and voltage sources for modeling the ideal active and passive switch. New model, proposed in this paper, is based on the same strategy, but it takes into account the nonideal V/I characteristics of semiconductor switches. The rules for determining the parameters of controlled sources from converter state variables remain the same as in [1], but a special procedure provides the extraction of these parameters directly from PSpice models of concrete transistor or diode, representing the active and passive switches. The way this model is compiled allows for the influence of parasitic ESRs of the capacitors in the circuit such that the resulting equations are equivalent to the averaged state space equations. The procedure of PSpice modeling and the results of computer simulation of boost converter are shown.

English abstract

A generalization of the model of PWM (Pulse Width Modulation) switch according to Dijk et al. [1] for averaged modeling of switched DC-DC converters is proposed. The original model by Dijk consists of the controlled current and voltage sources for modeling the ideal active and passive switch. New model, proposed in this paper, is based on the same strategy, but it takes into account the nonideal V/I characteristics of semiconductor switches. The rules for determining the parameters of controlled sources from converter state variables remain the same as in [1], but a special procedure provides the extraction of these parameters directly from PSpice models of concrete transistor or diode, representing the active and passive switches. The way this model is compiled allows for the influence of parasitic ESRs of the capacitors in the circuit such that the resulting equations are equivalent to the averaged state space equations. The procedure of PSpice modeling and the results of computer simulation of boost converter are shown.

Keywords

PWM switch, DC-DC converter, switch, averaged model

RIV year

2008

Released

10.12.2008

Publisher

WSEAS

Location

Tenerife, Spain

ISBN

978-960-474-035-2

Book

Proceedings of the 7th WSEAS International Conference on CIRCUITS, SYSTEMS, ELECTRONICS, CONTROL & SIGNAL PROCESSING (CSECS'08)

Pages from

162

Pages to

167

Pages count

6

BibTex


@inproceedings{BUT33229,
  author="Dalibor {Biolek} and Viera {Biolková} and Zdeněk {Kolka}",
  title="Averaged modeling of switched DC-DC converters based on Spice models of semiconductor switches",
  annote="A generalization of the model of PWM (Pulse Width Modulation) switch according to Dijk et al. [1] for averaged modeling of switched DC-DC converters is proposed. The original model by Dijk consists of the controlled current and voltage sources for modeling the ideal active and passive switch. New model, proposed in this paper, is based on the same strategy, but it takes into account the nonideal V/I characteristics of semiconductor switches. The rules for determining the parameters of controlled sources from converter state variables remain the same as in [1], but a special procedure provides the extraction of these parameters directly from PSpice models of concrete transistor or diode, representing the active and passive switches. The way this model is compiled allows for the influence of parasitic ESRs of the capacitors in the circuit such that the resulting equations are equivalent to the averaged state space equations. The procedure of PSpice modeling and the results of computer simulation of boost converter are shown.",
  address="WSEAS",
  booktitle="Proceedings of the 7th WSEAS International Conference on CIRCUITS, SYSTEMS, ELECTRONICS, CONTROL & SIGNAL PROCESSING (CSECS'08)",
  chapter="33229",
  howpublished="electronic, physical medium",
  institution="WSEAS",
  year="2008",
  month="december",
  pages="162--167",
  publisher="WSEAS",
  type="conference paper"
}