A new DC/DC converter with wide-range ZVS and zero circulating current

Author

Narimani, Mehdi ; Moschopoulos, Gerry

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Western Ontario, London, ON, Canada

fYear

2011

fDate

17-22 Sept. 2011

Firstpage

2209

Lastpage

2214

Abstract

A new three-level DC/DC converter is proposed in the paper. The outstanding features of this converter are that it operates with ZVS from full-load to no-load conditions with hardly any circulating freewheeling primary current due to its novel structure. Since the converter has no circulating current and its switches are exposed to only half the input voltage, it has high efficiency even under light load. In the paper, the new converter is introduced, its basic operating principles are explained, its modes of operation and its steady-state characteristics are discussed in detail as is its design, and experimental results obtained from a prototype converter that confirm its feasibility are presented.

Keywords

DC-DC power convertors; switched mode power supplies; DC/DC converter; full load to no load conditions; primary current; prototype converter; steady state characteristics; wide range ZVS; zero circulating current; Capacitors; DC-DC power converters; Inductors; Prototypes; Pulse width modulation; Switches; Zero voltage switching; Dc-dc power conversion; phase shifted modulation (PSM) converters; switch-mode power supply; zero-voltage-switching (ZVS);

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Congress and Exposition (ECCE), 2011 IEEE

Conference_Location

Phoenix, AZ

Print_ISBN

978-1-4577-0542-7

Type

conf

DOI

10.1109/ECCE.2011.6064061

Filename

6064061