A novel soft-switching DC-DC converter with wide ZVS-range and reduced filter requirement

Author

Ayyanar, Rajapandian ; Mohan, Ned

Author_Institution

Dept. of Electr. & Comput. Eng., Minnesota Univ., Minneapolis, MN, USA

Volume

1

fYear

1999

fDate

36373

Firstpage

433

Abstract

A novel soft-switching DC-DC converter capable of achieving high power density and high efficiency is proposed. It has the following features compared to the conventional phase-modulated full-bridge converters (PMC): (i) same number (four) of switches with identical total switch VA ratings; (ii) zero-voltage-switching down to no-load, hence lower EMI; (iii) lower conduction losses; and (iv) smaller overall magnetics requirement. The operating principles and design methods are discussed in detail. Experimental results on a 100 W prototype operating at 200 kHz are presented

Keywords

DC-DC power convertors; power harmonic filters; switching circuits; 100 W; 200 kHz; EMI; ZVS-range; conduction losses; design methods; efficiency; magnetics requirement; operating principles; power density; reduced filter requirement; soft-switching DC-DC power converter; switch VA ratings; zero-voltage-switching; Capacitance; DC-DC power converters; Electronic mail; Filters; Inductors; Magnetic losses; Magnetic switching; Switches; Switching converters; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1999. PESC 99. 30th Annual IEEE

Conference_Location

Charleston, SC

ISSN

0275-9306

Print_ISBN

0-7803-5421-4

Type

conf

DOI

10.1109/PESC.1999.789042

Filename

789042