PRINTED CIRCUIT BOARD AND POWER MODULE

摘要

Embodiments of the present invention provide a printed circuit board and a power module. The printed circuit board comprises an insulating layer, a first planar conductive layer located above the insulating layer, and a second planar conductive layer located below the insulating layer. The insulating layer, the first planar conductive layer and the second planar conductive layer each are provided with a magnetic core groove having a penetrating magnetic core. The printed circuit board further comprises: at least one group of vertical conductive winding, configured to cooperate with the magnetic core mounted in the magnetic core groove to perform electromagnetic conversion. In the direction perpendicular to the insulating layer, one side of the at least one group of vertical conductive winding is located a position on the insulating layer or the first planar conductive layer except the magnetic core groove, and the other side of the at least one group of vertical conductive winding is located on a position on the insulating layer or the second planar conductive layer except the magnetic core groove. The printed circuit board can expand the sectional area of the conductive winding, and reduce the alternating current impedance of the power module.