WPT UDS LF V1.9.0

Magnetic Link Efficiency Predictor

Analytical model (Wheeler inductance, Dowell AC resistance, AGM elliptic coupling, Steinmetz core loss). TX and RX may have different sizes. Enter the operating conditions, then predict link efficiency.

Coil size mode Frequency (kHz) Air gap (mm) Target DC power (W) Load voltage (V DC) Current density limit (A/mm²) Winding format Conductor Separation model

TX coil size

TX outer diameter (mm) TX inner diameter (mm) TX outer length L (mm) TX outer breadth B (mm) TX inner length L (mm) TX inner breadth B (mm)

RX coil size

RX same as TX RX outer diameter (mm) RX inner diameter (mm) RX outer length L (mm) RX outer breadth B (mm) RX inner length L (mm) RX inner breadth B (mm)

Enter conditions above, then press Predict Link Efficiency.

TX/RX coil pair diagram

Separate TX, RX, and value panels prevent overlap.

Inputs

Global

Link and efficiency

Loss models

TX coil

RX coil

Results

Formula reference

Inverter Efficiency Predictor

Analytical model (reflected impedance, switch + capacitor loss). Enter operating conditions, then predict inverter efficiency.

DC bus voltage (V) Frequency (kHz) Primary Lp (µH) Secondary Ls (µH) Coupling k Load resistance RL (Ω) Primary coil R (mΩ) Secondary coil R (mΩ) Switch technology Compensation topology Target DC power (W) Dead time (ns)

Enter conditions above, then press Predict Inverter Efficiency.

Rectifier Efficiency Predictor

Analytical model (diode/Sync FET conduction, recovery, filter). Enter operating conditions, then predict rectifier efficiency.

AC input voltage (V rms) Frequency (kHz) Load resistance RL (Ω) Source AC resistance (mΩ) Filter type Rectifier mode Diode forward drop Vf (V) Sync FET Rds (mΩ) Filter capacitor (µF) Filter inductor (µH) Target DC power (W)

Enter conditions above, then press Predict Rectifier Efficiency.

Design Summary

Readout of Coil Designer · Inverter · Rectifier

Selected parameters and results update when you change any tab. Save Design is only on this tab.

Open a calculator tab so it can compute, then return here — or press Refresh tables.