Printed circuit board layout

A vehicle comprising:

• a scanner of a Light Detection and Ranging (LIDAR) system, wherein the scanner is configured to direct, over a range of directions, a light beam generated by the LIDAR system;
• and
• a printed circuit board (PCB) of a multi-phase brushless motor coupled to the scanner, wherein the multi-phase brushless motor is configured to rotate the scanner thereby changing the direction of the light beam, and wherein the PCB further comprises:
• a first conductive layer comprising a first plurality of conductive paths having first layer inner-radius ends at an inner radius of the PCB and first layer outer-radius ends at an outer radius of the PCB, wherein the outer radius surrounds the inner radius;
• a second conductive layer comprising a second plurality of conductive paths having second layer outer-radius ends at an outer radius of the PCB and second layer inner-radius ends at an inner radius of the PCB;
• a first plurality of conductive vias that pass through the PCB at the outer radius of the PCB and electrically couple the first layer outer-radius ends to the second layer outer-radius ends;
• and
• a second plurality of conductive vias that pass through the PCB at the inner radius of the PCB and electrically couple the second layer inner-radius ends to the first layer inner-radius ends.

A printed circuit board (PCB) of a multi-phase brushless motor, the PCB comprising:

• a first conductive layer disposed on a first side of the PCB, the first conductive layer comprising a first plurality of conductive paths having first layer inner-radius ends at an inner radius of the PCB and first layer outer-radius ends at an outer radius of the PCB, wherein the outer radius surrounds the inner radius;
• a second conductive layer disposed on a second side of the PCB that is opposite the first side of the PCB, the second conductive layer comprising a second plurality of conductive paths having second layer outer-radius ends at an outer radius of the PCB and second layer inner-radius ends at an inner radius of the PCB;
• a first plurality of conductive vias that pass through the PCB at the outer radius of the PCB and electrically couple the first layer outer-radius ends to the second layer outer-radius ends;
• and
• a second plurality of conductive vias that pass through the PCB at the inner radius of the PCB and electrically couple the second layer inner-radius ends to the first layer inner-radius ends.