Printed wiring board having edge plating interconnects
View Patent ↗The present invention provides a PWB for attaching electrical components thereto. The PWB includes a stack of insulating layers, conductive layers located between the insulating layers, wherein the conductive layers terminate at an edge of the PWB, and an edge plate interconnect located on the edge. The edge plate interconnect is free of a complementary via and contacts and electrically interconnects the conductive layers. The present invention also provides a method of making the PWB and also provides a power converter implementing the edge plate interconnects.
1. A power converter, comprising:
a printed wiring board (PWB)having conductive layers terminating at a continuous edge of the PWB wherein said continuous edge is an edge located on an edge of a core-on-board opening for a magnetic core of a transformer formed in said PWB;
edge plate interconnects located on said continuous edge of said PWB; and
a transformer including primary and second windings, said primary winding being coupled to a primary circuit by at least one via and said secondary winding being coupled to a secondary circuit by at least one of said edge plate interconnects.
2. The power converter as recited in claim 1 wherein said edge plate interconnect is a first edge plate interconnect that contacts a first set of said conductive layers at said continuous edge and said PWB further includes a second edge plate interconnect located on said edge that contacts a second set of said conductive layers at said continuous edge, said first and second edge plate interconnects forming separate interconnects.
3. The power converter as recited in claim 1 wherein said edge plate interconnect is a first edge plate interconnect that contacts a first secondary conductive winding of said transformer within said PWB, and said PWB further includes a second edge plate interconnect located on said continuous edge that contacts a second secondary winding of said transformer within said PWB, said first and second edge plate interconnects forming separate interconnects for said first and second conductive windings, respectively.
4. The power converter as recited in claim 3 wherein said primary windings are interconnected by vias, but not by said edge plate interconnects.