Patent ID: 11909263
Assignee: WAYMO LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 29:
30. A device comprising:
a rotor platform that rotates about an axis of rotation;
a rotor printed circuit board (PCB) mounted to the rotor platform;
a stator platform;
a stator PCB mounted to the stator platform;
a rotor coil comprising a first plurality of conductive loops patterned along a single layer of the rotor PCB;
a stator coil comprising a second plurality conductive loops patterned along a single layer of the stator PCB; and
a plurality of light sources on at least one of the rotor PCB or the stator PCB for emitting light toward the other of the rotor PCB or the stator PCB,
wherein at least one of the first plurality of conductive loops patterned along the single layer of the rotor PCB or the second plurality of conductive loops patterned along the single layer of the stator PCB are concentrically arranged about the axis of rotation.