Resonant Operated Buck Converter with Reduced Device Switching Stress with Power Factor Improvement

Author

Shet, Vinayak N.

Author_Institution

Electr. & Electron. Dept., Goa Coll. of Eng.

fYear

2006

fDate

12-15 Dec. 2006

Firstpage

1

Lastpage

6

Abstract

This paper presents a new resonant operated method for an AC to DC converter having reduced device stress. The converter is operated in buck converter mode. An additional switch is used to operate the devices in such a manner, that the charging and discharging take place in a resonant fashion. A higher efficiency can be achieved by turning off the switch under zero current switching (ZCS). The converter is further modified to operate with two switches in a diode bridge converter instead of three switches. Complete theoretical analysis, simulation results and experimental data on a 500W converter are presented to demonstrate the superiority of the new control strategy with reduced device stress. The input power factor is found to be over 0.996.

Keywords

AC-DC power convertors; bridge circuits; power factor; resonant power convertors; zero current switching; ZCS; buck converter; device switching stress; diode bridge converter; power factor improvement; resonant operated method; zero current switching; Buck converters; DC-DC power converters; Diodes; Reactive power; Resonance; Stress; Switches; Switching converters; Turning; Zero current switching; Buck converter; current wave shaping; power factor; resonant; switching stress; zero switching current;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics, Drives and Energy Systems, 2006. PEDES '06. International Conference on

Conference_Location

New Delhi

Print_ISBN

0-7803-9772-X

Electronic_ISBN

0-7803-9772-X

Type

conf

DOI

10.1109/PEDES.2006.344391

Filename

4147886