Integrated screen printed capacitors in a GaN DC-DC converter allowing double side cooling

Author

Goualard, Olivier ; Videau, Nicolas ; Doan, Thi Bang ; Lebey, T. ; Bley, Vincent ; Meynard, Thierry

Author_Institution

Zodiac Aerosp., Zodiac Actuation Syst., Auxerre, France

fYear

2014

fDate

16-18 Sept. 2014

Firstpage

1

Lastpage

5

Abstract

Modern power electronics is focused on highly efficient, compact and cost-effective converters. In this paper, gallium nitride (GaN) transistors, multicell topology and integrated capacitors are combined to achieve these objectives. The first results of a 48V-to-5V DC/DC 3-level converter using integrated screen printed capacitors are presented. The power board is designed by assembling a ceramic substrate, with integrated capacitors using a Kapton® film as an insulation layer, and a multilayer PCB substrate for the active components. The integrated screen-printed capacitors technique and the proposed power board assembly allow double side cooling of the power semiconductors.

Keywords

DC-DC power convertors; III-V semiconductors; gallium compounds; power transistors; printed circuits; wide band gap semiconductors; DC-DC 3-level converter; Kapton film; ceramic substrate assembling; compact converters; cost-effective converters; double-side cooling; gallium nitride DC-DC converter; gallium nitride transistors; highly-efficient converters; insulation layer; integrated capacitors; integrated screen printed capacitors; integrated screen-printed capacitor technique; multicell topology; multilayer PCB substrate; power board assembly; power semiconductors; Capacitance; Capacitors; Ceramics; Gallium nitride; Substrates; Transistors;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics System-Integration Technology Conference (ESTC), 2014

Conference_Location

Helsinki

Type

conf

DOI

10.1109/ESTC.2014.6962725

Filename

6962725