Patent ID: 9449746
Filing Date: 2016-09-20
CPC Classification: A61B,H01F,Y10T

Claim Text:
1. A method of manufacturing a planar transformer, the method comprising: forming a first primary electrically conductive trace of at least one winding on a first circuit layer, the first primary electrically conductive trace having a first termination portion and a second termination portion defining a first gap therebetween; forming a second primary electrically conductive trace of at least one winding on a second circuit layer, the second primary electrically conductive trace having a first termination portion and a second termination portion defining a second gap therebetween so that, when the first and second circuit layers are stacked together in a first direction, the second gap is offset from the first gap in a second direction perpendicular to the first direction; forming a first secondary electrically conductive trace of at least one winding on a third circuit layer; and forming an electrically conductive trace into a grounded portion on the third circuit layer so that the grounded portion aligns with at least one of the first and second gaps in the second direction when the third circuit layer is stacked together with the first and second circuit layers.