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Large-signal stability of PWM switching regulators

Research output: Journal Publications and ReviewsRGC 22 - Publication in policy or professional journal

Abstract

A method for finding the equilibrium points of closed-loop switching converters subjected to large-signal disturbances is developed. The position of the equilibrium points in the state-plane, in conjunction with the state-plane portrait, allow for the study of the stability of large-signal transients. For this purpose, a discrete-time model is formulated, starting from a time-domain analysis algorithm based on solving a set of algebraical modified nodal equations at each integration step. Due to the complexity of the formulas, the study of the large-signal stability is carried out here only for PWM converters operating in continuous conduction mode. An application to a boost regulator allows for favorably comparing our results to those available in literature.
Original languageEnglish
Pages (from-to)1123-1126
JournalProceedings - IEEE International Symposium on Circuits and Systems
Volume2
DOIs
Publication statusPublished - 1995
Externally publishedYes
Event1995 IEEE International Symposium on Circuits and Systems (ISCAS 1995) - Seattle, United States
Duration: 30 Apr 19953 May 1995

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