Small-Signal Model Development for a Cuk Converter While Operating in DCVM for Both DC and AC Input Voltages


The Cúk converter operating in discontinuous capacitor voltage mode (DCVM) inherently benefits from PFC features as unity power factor can be achieved by using a constant duty cycle and switching frequency. In this paper, the switch network modeling technique is applied to the Cúk converter operating in DCVM in order to develop its small-signal model under the assumption that it is fed by a dc voltage source. Afterwards, the model is extended to derive the small-signal behavior of the converter while operating as a PFC converter. The validity of the proposed model is confirmed by both simulation and experimental results.

Meeting Name

2nd Annual IEEE Energy Conversion Congress and Exposition (2010: Sep. 12-16, Atlanta, GA)


Electrical and Computer Engineering

Keywords and Phrases

AC Input; Capacitor Voltages; DC Voltage Sources; Discontinuous Capacitor Voltage Mode; Duty Cycles; PFC Converters; Power Factor Corrections; Small Signal; Small Signal Model; Switch Network; Unity Power Factor; Capacitors; Computer Simulation; DC Power Transmission; Electric Power Factor; Energy Conversion; Switching Circuits; Heterojunction Bipolar Transistors; Cuk Converter; Power Factor Correction

International Standard Book Number (ISBN)


International Standard Serial Number (ISSN)

2329-3721; 2329-3748

Document Type

Article - Conference proceedings

Document Version


File Type





© 2010 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Sep 2010