Title :
Optimizing the winding strategy of the transformer in a flyback converter
Author :
Prieto, R. ; Cobos, J.A. ; Garcia, O. ; Asensi, R. ; Uceda, J.
Author_Institution :
Div. de Ingenieria Electron., Univ. Politecnica de Madrid, Spain
Abstract :
This work presents a study of the influence of the winding strategy in the parameters of the flyback transformer. A frequency and geometry dependent model generated from FEM simulations has been employed in order to study the influence of the position of the windings on the leakage energy and AC resistance. A study of the interleaving technique in the flyback transformer has also been developed using the FEM solver. Conclusions of the advantages of the interleaving technique in the flyback transformer compared with its application in common transformers have been extracted. The influence of the leakage inductance in primary and secondary windings has been studied by means of SPICE simulations. The final goal of this paper is to obtain winding strategy design rules to minimize the leakage inductance and AC resistance in order to optimize power converter performance
Keywords :
DC-DC power convertors; SPICE; circuit analysis computing; design engineering; finite element analysis; magnetic leakage; optimisation; power engineering computing; power transformers; transformer windings; AC resistance; FEM simulations; SPICE simulation; design rules; flyback power converter; flyback transformer; frequency dependent model; geometry dependent model; interleaving technique; leakage energy; power MOSFET switches; power converter performance; primary windings; secondary windings; winding strategy optimisation; DC-DC power converters; Flyback transformers; Inductance; Inductors; Interleaved codes; Solid modeling; Switched-mode power supply; Switches; Switching converters; Transformer cores;
Conference_Titel :
Power Electronics Specialists Conference, 1996. PESC '96 Record., 27th Annual IEEE
Conference_Location :
Baveno
Print_ISBN :
0-7803-3500-7
DOI :
10.1109/PESC.1996.548773
