Wiki article · Collection 03

Ferrite Tile Layout

Engineering reference on Ferrite Tile Layout for wireless power system design, integration, and deployment.

6 minArticle 36/50Coil Design

Ferrite Tile Layout — educational diagram — Fig.: Educational diagram for “Ferrite Tile Layout”.

Ferrite tile layout determines how much of the coil back-plane carries guided flux versus fringing into air. Tiles are cut in segments with gaps to limit eddy currents and thermal stress cracks. Incomplete coverage lowers effective permeability; overhang beyond the coil edge can reduce leakage if shaped correctly.

Standard layouts mirror coil outer contour with 2–5 mm gaps between tiles — vendor-specific rules apply for minimum gap and adhesive type.

01Layout variables

Coverage percentage vs coil OD.
Gap width and orientation (radial vs circumferential splits).
Tile thickness vs saturation and weight.
Central hole sizing for alignment features and cables.

Ferrite Tile Layout — supporting diagram — Fig.: Supporting illustration for “Ferrite Tile Layout”.

02Assembly

Bond tiles to a flat plate before winding or potting to maintain coplanarity. Warped back-plates create air gaps under ferrite that reduce μ_eff unpredictably. Replace cracked tiles in field service — partial replacement shifts L.

03Testing

Compare L with full vs 75% tile coverage on samples.
Thermal imaging for tile hot spots indicating saturation or eddy issues.
Drop test ferrite assembly before approving layout for AGV impacts.