Analysis of zero-voltage transition fourth-order buck converter

Author

Veerachary, M. ; Jain, Vinesh

Author_Institution

Dept. of Electr. Eng., IIT Delhi, New Delhi, India

fYear

2014

fDate

23-25 Jan. 2014

Firstpage

152

Lastpage

157

Abstract

Analysis and design of zero-voltage transition fourth-order buck converter is presented here. Overcoming drawbacks of hard switched FBUCK converter, it gives decreased current stress, soft switching of main and auxiliary switch with wider load range and lower circulating current leading to reduction in current rating and thus size of auxiliary circuit elements. The ZVT-FOBC is proposed and its general operation is explained with analysis of the steady-state operation. The equations derived from steady-state analysis are used in design procedure. A 50 W, 100 kHz ZVT-FBUCK experimental prototype is built to test the design concept. Experimental results comply with the simulation and analytical estimates.

Keywords

switching convertors; zero current switching; zero voltage switching; ZVT-FOBC; auxiliary circuit element; auxiliary switch; circulating current stress rating; frequency 100 kHz; hard switched FBUCK converter; power 50 W; soft switching; steady-state analysis; zero-voltage transition fourth-order buck converter analysis; Capacitors; Equations; Inductors; RLC circuits; Switches; Switching circuits; Voltage measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Advances in Energy Conversion Technologies (ICAECT), 2014 International Conference on

Conference_Location

Manipal

Print_ISBN

978-1-4799-2205-5

Type

conf

DOI

10.1109/ICAECT.2014.6757079

Filename

6757079