Design of a 1.5 V output voltage on-board DC/DC converter with magnetic components integrated in a multilayer PCB

Author

Alou, P. ; Suter, O. ; Cobos, Jose A. ; Uceda, J. ; Ollero, S.

Author_Institution

ETSII, Univ. Politecnica de Madrid, Spain

Volume

2

fYear

1997

fDate

23-27 Feb 1997

Firstpage

764

Abstract

Computer and telecommunication systems tend to demand lower supply voltages than 3.3 V. This fact raises the challenge of obtaining high efficiency DC/DC power converters with low output voltage. The authors have implemented a compact power converter with an output voltage of 1.5 V. The output power is 5 W and the power converter has been provided with galvanic isolation between input and output sides. The windings of the magnetic components are directly integrated in the PCB, which allows a reduction in size. Self-driven synchronous rectification allows one to obtain very high efficiency (81.2% at nominal conditions, 85.3% maximum) for such a low output voltage

Keywords

DC-DC power convertors; computer power supplies; design engineering; field effect transistor switches; power MOSFET; power field effect transistors; power semiconductor switches; power transformers; printed circuits; switching circuits; telecommunication power supplies; transformer windings; 1.5 V; 5 W; 81.2 percent; 85.3 percent; DC/DC power converter design; computer systems; galvanic isolation; magnetic components; multilayer PCB; power systems; self-driven synchronous rectification; size reduction; telecommunication systems; Circuit topology; DC-DC power converters; Galvanizing; Low voltage; Magnetic multilayers; Magnetic resonance; Power generation; Switching frequency; Transformer cores; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 1997. APEC '97 Conference Proceedings 1997., Twelfth Annual

Conference_Location

Atlanta, GA

Print_ISBN

0-7803-3704-2

Type

conf

DOI

10.1109/APEC.1997.575730

Filename

575730