Laminated transformer and manufacturing method thereof
AssigneeSilergy Semiconductor Technology (Hangzhou) LTD
InventorsKe Dai, Jian Wei, Jiajia Yan
Life of this patent
Estimating the term…
Abstract
A laminated transformer can include: a plurality of magnetic layers; a plurality of coil layers including a primary coil having a first type of coil layer, and a secondary coil having a second type of coil layer, where each coil layer is laminated between a pair of the plurality of magnetic layers; and a plurality of non-magnetic layers, where a first of the plurality of non-magnetic layers is disposed between an adjacent pair of the coil layers in order to increase a coupling coefficient between the primary and secondary coils.
Claims23
A laminated transformer, comprising:
- a) a plurality of magnetic layers;
- b) a plurality of coil layers comprising a primary coil having a first type of coil layer, and a secondary coil having a second type of coil layer, wherein each coil layer is laminated between a pair of the plurality of magnetic layers;
- and
- c) a plurality of non-magnetic layers, wherein a first of the plurality of non-magnetic layers is disposed between an adjacent pair of the coil layers in order to increase a coupling coefficient between the primary and secondary coils.
A method of manufacturing a laminated transformer, the method comprising:
- a) casting a non-magnetic material on a film to form a plurality of non-magnetic layers;
- b) performing a screen printing process on the non-magnetic layer to form a plurality of winding layers, each winding layer comprising a magnetic material body and a coil;
- and
- c) performing a pressing process to laminate two magnetic layers and a plurality of structures, wherein each structure comprises one non-magnetic layer and one winding layer, wherein the plurality of structures are laminated between two layers of the magnetic layers.
Dependencies are inferred from the claim text.