Patent ID: 11394241

Abstract:
The invention relates to a resonator of a wireless power transfer system (1), including a magnetic core in the form of an H-core with two yokes and at least one limb (52) connecting the yokes where a winding (53) is wound on the limb (52) of the core. The winding (53) includes a PCB (56.1) on one side of the limb (52) and a PCB (56.2) on another side of the limb (52) where the turns of the coil are formed by traces on the first PCB (56.1) and on the second PCB (56.2) that are connected to each other by soldering pins (57) that are soldered into corresponding holes of the PCBs (56.1, 56.2). The traces on the PCBs (56.1, 56.2) may be provided on a single conductive layer of the PCBs (56.1, 56.2) or the PCBs may be multilayer PBS, where each turn section between two soldering pins (57) on one of the PCBs (56.1, 56.2) may include several strands including one or more traces on one or more conductive layers.