Switching losses in low-voltage TLNPC step-up converters

Author

Macellari, Michele ; Schirone, Luigi

Author_Institution

DIAEE - Dept. of Aerosp., Electr. & Energetic Eng., Univ. “La Sapienza”, Rome, Italy

fYear

2013

fDate

10-13 Nov. 2013

Firstpage

1337

Lastpage

1342

Abstract

High-efficiency dc-dc step up converters, based on the synchronous Three Levels Neutral Point Clamped configuration were built and investigated. The baseline circuit based on hard-switched, fast high-current MOSFETs provided high efficiency levels on a wide range of operating conditions. Several approaches to further improve performance were investigated. Very high efficiencies were experimentally demonstrated by an hard switched configuration where the switches consisted of a suitable arrangement of very-low R_DSon and very fast MOSFET transistors.

Keywords

DC-DC power convertors; field effect transistor switches; losses; power semiconductor switches; switching convertors; DC-DC step up converter; MOSFET transistors; TLNPC step-up converter; baseline circuit; hard switched configuration; switches; switching losses; three levels neutral point clamped; Inductors; MOSFET; Prototypes; Switches; Switching circuits; Switching loss; Dc-dc power converters; Switching losses; circuit optimization; high efficiency; three level converters;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics Society, IECON 2013 - 39th Annual Conference of the IEEE

Conference_Location

Vienna

ISSN

1553-572X

Type

conf

DOI

10.1109/IECON.2013.6699326

Filename

6699326