State Variable Model for Considering the Parasitic Inductor Resistance on the Open Loop Performance of DC to DC Converters

Carlos Alberto Lozano Espinosa^*

Pontificia Universidad Javeriana, Santiago de Cali, Colombia.

DOI: 10.4236/jcc.2014.213006                

Abstract

This paper shows DC and small-signal circuit models for the PWM DC to DC buck, boost and back/ boost converters with the equivalent series resistance of the inductor. The DC voltage transfer function and the efficiency of the converter are derived from the DC model. Small-signal open-loop characteristics are derived from the small-signal model based on a state variable model. A design example proves the performance of the circuit and verification of the model.

Keywords

DC to DC Converter, Parasitic Resistance of Inductor, Small Signal Analysis, Buck Converter, Boost Converter, Buck-Boost Converter

Conflicts of Interest

The authors declare no conflicts of interest.

References

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