The use of power factor and K-factor as goodness factors in the analysis of dc-dc converters

B. P. Divakar, Ka Wai Eric Cheng, D. Sutanto, Shi Zhanghai, K. F. Kwok

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

2 Citations (Scopus)


In this work, a new performance parameter, namely power factor, is introduced in the analysis of dc-dc converters. The power factor, which is used frequently in ac circuits, is now applied in the analysis of dc circuits. The derivation of the parameter and its application as one of the performance parameters in the analysis of a buck dc-dc converter operating in both the continuous (CCM) and discontinuous mode (DCM) has been carried out considering all the parasitic elements of the circuit. An ideal value for the factor "K" is also suggested with the aid of plots for proper selection of the inductor. All the equations are normalized and expressed in terms of power factor so that a user can easily study the influence of the circuit elements on the performance of the converter. The analytical results are verified using PSPICE simulations.
Original languageEnglish
Title of host publication2008 Australasian Universities Power Engineering Conference, AUPEC 2008
Publication statusPublished - 1 Dec 2008
Event2008 Australasian Universities Power Engineering Conference, AUPEC 2008 - Sydney, NSW, Australia
Duration: 14 Dec 200817 Dec 2008


Conference2008 Australasian Universities Power Engineering Conference, AUPEC 2008
CitySydney, NSW


  • K-factor and dc-dc converter
  • Power factor

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Cite this