WIRELESS POWER TRANSFER SYSTEM

An integrated wireless power transfer device comprises a laminated substrate comprising a plurality of layers, a first circuit comprising a first transformer winding and a second transformer winding coupled in series between a first input node and a second input node, a second circuit galvanically isolated from the first circuit and comprising a third transformer winding and a fourth transformer winding coupled in series between a first output node and a second output node, and a plurality of first contact pads and a plurality of second contact pads formed on a bottom surface of the laminated substrate. The first transformer winding is formed on a first layer of the laminated substrate, the third transformer winding is formed on the first layer of the laminated substrate, the fourth transformer winding is formed vertically above the first transformer winding on a second layer of the laminated substrate, the second transformer winding is formed vertically above the third transformer winding on the second layer of the laminated substrate, the first contact pads of the plurality of first contact pads are electrically coupled to the first circuit, and the second contact pads of the plurality of second contact pads are electrically coupled to the second circuit.