Power factor and K-factor in the analysis of DC-DC converters

Author

Divakar, B.P. ; Cheng, K.W.E. ; Shi, Zhanghai ; Kwok, K.F.

Author_Institution

EE Dept., Hong Kong Polytech. Univ., Kowloon, China

fYear

2009

fDate

20-22 May 2009

Firstpage

1

Lastpage

5

Abstract

In this work, a new performance parameter, namely power factor, introduced is used in the analysis of buck DC-DC converter operating in DCM. The power factor concept 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 the buck DC-DC converter operating in DCM and boost converter operating in discontinuous mode (DCM) has been carried out considering all the parasitic elements of the circuit. 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. This will aid the designer to plot design curves for any loading conditions and choose the factor ldquoKrdquo, which is used to calculate the inductance required to operate the converter in a desired mode.

Keywords

DC-DC power convertors; power factor; DC-DC power converters; K-factor; boost converter; discontinuous mode operation; power factor; Circuit analysis; Circuit topology; DC-DC power converters; Equations; Inductance; Performance analysis; Power electronics; Power generation; Reactive power; Voltage; K-factor and dc-dc converter; Power factor;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Systems and Applications, 2009. PESA 2009. 3rd International Conference on

Conference_Location

Hong Kong

Print_ISBN

978-1-4244-3845-7

Type

conf

Filename

5228655