Title :
Design of very low profile magnetic components using flex foils
Author :
Rascón, M. ; Prieto, R. ; García, O. ; Cobos, J.A. ; Uceda, J.
Author_Institution :
ETSII, Univ. Politecnica de Madrid, Spain
Abstract :
Several magnetic components (transformers and inductors) have been designed with very low profile (4 mm height) cores. To achieve such a low height, full custom cores have been used, together with an advanced technology (flex foils) for the windings. This freedom in the selection of dimensions and materials makes the design procedure completely different to the traditional schemes with commercial cores. The process used to obtain an optimum design is described in this paper. It is based on the use of models based on finite element analysis (FEA) tools, and spreadsheets. This procedure has been applied to the design of a transformer and an inductor, with a size of 10×10×4 mm3 for each, to be used in an onboard power converter in telecommunication systems. Experimental results of a 5 W, low output voltage (3.3 V×1.5 A) prototype with these magnetic components are included in the paper
Keywords :
design engineering; finite element analysis; foils; power convertors; power transformers; telecommunication power supplies; transformer cores; transformer windings; 1.5 A; 10 mm; 3.3 V; 4 mm; 5 W; custom cores; design procedure; finite element analysis; flex foils; inductors; low profile magnetic components; optimum design; power converter; spreadsheets; telecommunication systems; transformers; windings; Electronic mail; Fabrication; Inductors; Low voltage; Magnetic cores; Magnetic materials; Magnetic resonance; Sheet materials; Switched-mode power supply; Transformer cores;
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
DOI :
10.1109/APEC.1997.575614
