An improved ZVS DC-DC converter with auxiliary resonant circuit

Author

Aathira, K.V. ; Vijayakumari, C.K.

Author_Institution

EEE Dept., Rajiv Gandhi Inst. of Technol., Kottayam, India

fYear

2011

fDate

21-22 July 2011

Firstpage

718

Lastpage

723

Abstract

A soft switching boost converter that uses an auxiliary switch and resonant circuit is proposed in this paper. The main switch performs soft switching under zero voltage condition by using a resonant capacitor and an inductor, auxiliary switch and diode. The conventional boost converter generates switching losses at turn on and off and this reduces the whole system efficiency. But the soft switching boost converter reduces the switching losses more than the conventional boost converter. The efficiency is increased to 96% in this soft switching converter. This converter is suitable for applications such as high-efficiency converters, photovoltaic dc/dc converters, a power-factor-correction circuit, and battery chargers.

Keywords

DC-DC power convertors; battery chargers; power factor correction; power inductors; zero voltage switching; ZVS DC-DC converter; auxiliary resonant circuit; auxiliary switch; battery chargers; diode; high-efficiency converters; inductor; photovoltaic dc/dc converters; power-factor-correction circuit; resonant capacitor; soft switching boost converter; zero voltage condition; Equations; Mathematical model; Silicon; Switches; Tin; Zirconium; Auxiliary resonant circuit; soft-switching boost converter; zero voltage switching (ZVS);

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing, Communication, Computing and Networking Technologies (ICSCCN), 2011 International Conference on

Conference_Location

Thuckafay

Print_ISBN

978-1-61284-654-5

Type

conf

DOI

10.1109/ICSCCN.2011.6024644

Filename

6024644