Comparison on performance between synchronous single-ended primary-inductor converter (SEPIC) and synchronous ZETA converter

Author

Woranetsuttikul, Kaweepoj ; Pinsuntia, Kittapas ; Jumpasri, Nattawat ; Nilsakorn, Taywin ; Khan-ngern, Werachet

Author_Institution

Dept. of Electr. Eng., King Mongkut´s Inst. of Technol. Ladkrabang, Bangkok, Thailand

fYear

2014

fDate

19-21 March 2014

Firstpage

1

Lastpage

4

Abstract

This paper presents the performance comparison of synchronous single-ended primary-inductor converter (SEPIC) and synchronous ZETA focusing on the converter efficiency and the output waveform quality. The conventional SEPIC and ZETA converters operated in Buck and Boost modes were modified to the synchronous SEPIC and synchronous ZETA converters to improve the converter efficiency. The operating conditions were setup where the duty cycle was operated from 0.3 to 0.7 for covering buck-boost modes at the continuous current mode. Two switching frequencies at 20 kHz and 40 kHz were operated to compare the effect of switching loss and conduction loss where the efficiency was concerned. Finally, the converter efficiency and the ripple factor of the output voltage were concluded.

Keywords

DC-DC power convertors; power inductors; buck-boost mode synchronous SEPIC; buck-boost mode synchronous ZETA converter efficiency; conduction loss; continuous current mode; duty cycle; frequency 20 kHz to 40 kHz; output voltage ripple factor; switching loss; synchronous single ended primary inductor converter; Focusing; MOSFET; Pulse width modulation; Efficiency; Ripple factor; Synchronous SEPIC converter; Synchronous Zeta converter;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering Congress (iEECON), 2014 International

Conference_Location

Chonburi

Type

conf

DOI

10.1109/iEECON.2014.6925855

Filename

6925855