I.01
Biot–Savart from scratch
Derive the magnetic field of a current element and build up to the closed-form mutual inductance of two coaxial loops.
12 MIN · NOTEBOOK
LEARNING CENTER — III.
FUNDAMENTALS
WORKFLOWS
DEEP DIVES · CASE STUDIES
Learn the physics. Ship the design.
A curated path through Biot–Savart fundamentals, the eight-topology workflow and deeper research notes. Built for engineers new to WPT and for practitioners tuning production coils.
I. · Fundamentals · the physics
Start with first principles.
II. · Workflows · the product
Run a real simulation.
II.01
Your first simulation in 90 s
Pick a topology. Set geometry. Run. Export. End-to-end on the web app, no setup.
90 SEC · VIDEO
II.02
Sweep spacing across 50 frames
Use the parameter-sweep API to render a k-vs-h curve and pin the operating point.
7 MIN · TUTORIAL
II.03
From sim to fab
Walk through the four export targets — PDF, KiCad, DXF, SPICE — and what to drop into your toolchain first.
11 MIN · TUTORIAL
III. · Deep dives · the engine
Inside the solver.
III.01
Inside the genetic optimiser
BLX-α crossover, tournament selection, NSGA-II Pareto. How to read the convergence curve and when to restart.
DOCUMENTATION
III.02
Volumetric field rendering
How the same H-tensor drives 2d_plane, vector_field and 3d_volume modes — and what LOD 0/1/2 actually means.
DOCUMENTATION
III.03
Validating against Babic & Akyel
How we benchmark mutual inductance to ±1–2 % against the 2008 IEEE Trans. Magnetics dataset.
RESEARCH NOTE
IV. · Applied · the field
Worked examples by application.
IV.01
EV pads at 85 kHz
SAE J2954 alignment, gap and misalignment trade-offs. Worked example from a square-DTC ground assembly.
CASE STUDY
IV.02
6.78 MHz ISM implants
Sub-mm coil design for medical implants — Q targets, coupling under tissue load, regulatory hooks.
CASE STUDY
IV.03
Battery-free IoT sensors
Designing the receive coil when budget is microwatts. Rectifier choice, matching network sizing.
CASE STUDY