Publication detail

VHDL-AMS MODELING OF DC-DC CONVERTERS FOR STEADYSTATE ANALYSIS

KOLKA, Z. KOVÁŘ, J.

Original Title

VHDL-AMS MODELING OF DC-DC CONVERTERS FOR STEADYSTATE ANALYSIS

English Title

VHDL-AMS MODELING OF DC-DC CONVERTERS FOR STEADYSTATE ANALYSIS

Type

conference paper

Language

en

Original Abstract

The paper describes a technique for creating behavioral models of switched DC-DC converters based on a combination of the averaged and the switch-level modeling styles, which allows performing steady-state analysis using a single run of the standard Spice transient simulation. The averaging consists in creating an equivalent model of DC-DC converter for quantities averaged over the switching period. Finding the DC operating point of an averaged model is equivalent to finding the steady-state solution in the switch-level model. Standard transient simulation with the DC operating point as the initial condition is then equivalent to the steady-state analysis. The technique of modified PWM switch is used, which allows incorporating the on-resistance of the active switch together with the forward voltage drop and the differential resistance of diode-type passive switch. This approach allows sharing the values of state variables between DC and transient analyses.

English abstract

The paper describes a technique for creating behavioral models of switched DC-DC converters based on a combination of the averaged and the switch-level modeling styles, which allows performing steady-state analysis using a single run of the standard Spice transient simulation. The averaging consists in creating an equivalent model of DC-DC converter for quantities averaged over the switching period. Finding the DC operating point of an averaged model is equivalent to finding the steady-state solution in the switch-level model. Standard transient simulation with the DC operating point as the initial condition is then equivalent to the steady-state analysis. The technique of modified PWM switch is used, which allows incorporating the on-resistance of the active switch together with the forward voltage drop and the differential resistance of diode-type passive switch. This approach allows sharing the values of state variables between DC and transient analyses.

Keywords

DC-DC converters, Averaging, Steady-state analysis, Behavioral modeling, VHDL-AMS

RIV year

2008

Released

19.06.2008

Publisher

Technical University of Lodz

Location

Poland

ISBN

83-922632-7-8

Book

Proc. of the 15th International Conference MIXED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS

Pages from

543

Pages to

546

Pages count

4

BibTex


@inproceedings{BUT27519,
  author="Zdeněk {Kolka} and Jan {Kovář}",
  title="VHDL-AMS MODELING OF DC-DC CONVERTERS FOR STEADYSTATE ANALYSIS",
  annote="The paper describes a technique for creating behavioral models of switched DC-DC converters based on a
combination of the averaged and the switch-level modeling styles, which allows performing steady-state analysis using a
single run of the standard Spice transient simulation. The averaging consists in creating an equivalent model of DC-DC
converter for quantities averaged over the switching period. Finding the DC operating point of an averaged model is
equivalent to finding the steady-state solution in the switch-level model. Standard transient simulation with the DC
operating point as the initial condition is then equivalent to the steady-state analysis.
The technique of modified PWM switch is used, which allows incorporating the on-resistance of the active switch together
with the forward voltage drop and the differential resistance of diode-type passive switch. This approach allows sharing the
values of state variables between DC and transient analyses.",
  address="Technical University of Lodz",
  booktitle="Proc. of the 15th International Conference MIXED DESIGN OF INTEGRATED CIRCUITS AND SYSTEMS",
  chapter="27519",
  howpublished="print",
  institution="Technical University of Lodz",
  year="2008",
  month="june",
  pages="543--546",
  publisher="Technical University of Lodz",
  type="conference paper"
}