Correcting the pspice large-signal model for PWM converters operating in DCM

    Authors

    G. Y. Zhu;I. Batarseh

    Abbreviated Journal Title

    IEEE Trans. Aerosp. Electron. Syst.

    Keywords

    Engineering, Aerospace; Engineering, Electrical & Electronic; Telecommunications

    Abstract

    It is shown that an incorrect parameter limit in the existing Pspice pulsewidth modulated (PWM) snitch model has been detected. The main objective of this work is to alert users of such models to a potential source of simulation error under certain parameter specifications as shown here. Simulation of the boost converter operating in discontinuous conduction mode (DCM) based on this incorrect model results in either convergence problems or wrong results. Correction of the model is provided and its validity is verified using a specific converter example. The results illustrate how the old and corrected models produce different results when the boost converter is subjected to some transients under sudden load variations.

    Journal Title

    Ieee Transactions on Aerospace and Electronic Systems

    Volume

    36

    Issue/Number

    2

    Publication Date

    1-1-2000

    Document Type

    Letter

    Language

    English

    First Page

    718

    Last Page

    721

    WOS Identifier

    WOS:000087320200031

    ISSN

    0018-9251

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