Planar transformer winding

Details Planar transformer winding Planar transformer winding

H - Electricity

01

F

H01F 27/28 (2006.01)

Patent

CA 2315894

The invention concerns a planar transformer winding comprising primary (20a, 20b) and secondary (22a-22f) coils with wire turns produced in the form of strip conductors formed on the surfaces of an insulating base and electrically connected with one another by means of conducting holes bored in the insulating base. The primary and secondary winding portions (respectively 20a, 22a, 22c, 22e; respectively 20 b, 22b, 22d, 22f) borne by one common surface of the insulating base are joined together by winding, along two distinct overlapping zones, spiral in shape, one of the zones joining side by side turns or portions of turns (20a or 20b) of the primary coil and the other zone joining together the turns or portions or turns (22a, 22c, 22e or 22b, 22d, 22f) of the secondary coil. Such an arrangement enables to obtain primary and secondary coils with a different number of turns on one single insulating base with two surfaces.

Ce bobinage pour transformateur planar possède des enroulements primaire (20a, 20b) et secondaire (22a-22f) avec des spires réalisées sous la forme de pistes conductrices formées sur les faces d'un support isolant et raccordées électriquement entre elles au moyen de trous conducteurs percés dans le support isolant. Les portions des enroulements primaire et secondaire (20a resp. 22a, 22c, 22e; 20b resp. 22b, 22d, 22f) portées par une même face du support isolant sont regroupées par enroulement, selon deux zones distinctes imbriquées, de forme spiralées, l'une des zones regroupant côte à côte des spires ou portions de spires (20a ou 20b) de l'enroulement primaire et l'autre zone regroupant côte à côte des spires ou portions de spires (22a, 22c, 22e ou 22b, 22d, 22f) de l'enroulement secondaire. Cela permet d'obtenir des enroulements primaire et secondaire avec des nombres de spires différents sur un simple support isolant à deux faces.

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