Power Stage Design of Fourth-Order DC–DC Converters by Means of Principal Components Analysis

The design of fourth-order dc-dc converters is discussed in this paper. The principal components analysis is applied to find the set of passive components which allows to avoid double resonance in the control-to-output transfer function. The design of a synchronous SEPIC converter has been studied as an application of the proposed design methodology by using a database of real passive components. The performances of the SEPIC converter designed with the proposed methodology are verified through both time domain and frequency domain simulations and they are compared with those ones achieved by standard ripple-based design procedures.

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