Patent ID: 9299490
Filing Date: 2016-03-29
CPC Classification: H01F,H02M,H05K,Y02B

Claim Text:
1. A circuit board, comprising: a substrate and a magnetic core, wherein the magnetic core is in an annular shape and the magnetic core has an inner side and an outer side, wherein the magnetic core is embedded into the substrate, at least one turn of a winding conductor wound around the magnetic core is arranged on the substrate, each turn of the winding conductor comprises a first end-surface conductor and a second end-surface conductor that are separately arranged on two ends of the magnetic core, and each turn of the winding conductor further comprises a first side-surface conductor that penetrates through the inner side of the magnetic core and a second side-surface conductor that is arranged on the outer side of the magnetic core, wherein the first side-surface conductor is electrically connected to the first end-surface conductor and the second end-surface conductor, and the second side-surface conductor is electrically connected to the second end-surface conductor, the second end-surface conductor disposed laterally to an edge of the substrate and extending orthogonally along the edge of the substrate to the second side-surface conductor.