Power Density

Power density is deliverable power per unit volume or area — critical when AGV belly clearance is tight and floor pads must survive forklift traffic. Higher density comes from better devices, higher frequency, improved magnetics, and integrated cooling — each with cost and complexity.

Marketing kW per square meter means little without stating gap, misalignment, coolant, and ambient.

01Levers

• Wide bandgap switches and optimized magnetics for smaller tanks.
• Higher frequency with Litz and careful AC loss control.
• Liquid or directed airflow in pedestals; heat spreading in floor assemblies.
• Multi-coil arrays with selective excitation for localized power delivery.

02Limits

EMI and safety clearances do not shrink with silicon scaling. Human-accessible surfaces have temperature and field exposure limits. Receiver volume on AMRs competes with battery and structure — density pushes against service access.

03Specification discipline

• Quote power density at worst-case alignment and ambient.
• Include inverter, coil, and rectifier loss in density figures, not coil alone.
• Document maintenance clearance for dense assemblies.