Patent ID: 11870340
Assignee: VICOR CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. An apparatus comprising:
a power converter having a multi-layer printed circuit board (“PCB”) including a first conductive layer, a second conductive layer, and an insulation layer separating the first and second conductive layers;
a magnetically permeable core structure including a number, Np, of magnetic paths, each passing through the first and second conductive layers in at least two leg locations;
a first winding including a first winding element that passes through the Np magnetic paths between the respective leg locations, the first winding element being formed in the first conductive layer of the PCB;
a plurality of second winding elements, each passing through a respective subset of the magnetic paths between the respective leg locations, each subset including a number, Ns, of the magnetic paths, the second winding elements being formed in the second conductive layer;
a plurality of cell elements each including a switch and a capacitor, in which each cell element is associated with and includes at least a portion of a respective second winding element;
wherein each second winding element comprises a length measured between a first termination and a second termination, the first termination is connected to the switch of the corresponding cell element, the switch is on one side of the corresponding subset of the magnetic paths, the second termination is connected to an output terminal located on an opposite side of the corresponding subset of the magnetic paths, and the length between the first and second terminations associated with cell elements not located at an end of the converter encircles less than half of the respective core leg in the second conductive layer.