Stability of DC-DC converters: A ripple based index approach

  title={Stability of DC-DC converters: A ripple based index approach},
  author={Abdelali El Aroudi and Eduard Alarc{\'o}n and Enric Rodriguez and Ramon Leyva},
  journal={2008 12th International Middle-East Power System Conference},
In this paper we combine two different approaches for studying stability of DC-DC power electronic circuits. The first method is based on the Routh-Hurwitz criterion for stability of linear systems and it is suitable for detecting low frequency oscillations. The second approach uses the ripple injected in the modulator from the controller and it is suitable for predicting subharmonic oscillations. A DC-DC buck converter is used as an example to put in evidence the usefulness of the method… CONTINUE READING


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