Edf esc

EDF-ESC

Open hardware and firmware for a compact 98 mm × 58 mm, four-layer board with two independent 6S sensorless BLDC/EDF controller channels.

Engineering prototype — do not fabricate or connect a battery. The CAD currently contains documented placement placeholders, open nets, and DRC violations. It is not a validated 150 A design. See docs/cad-status.md for the exact blockers.

Design targets

• two electrically independent power paths; no shared 300 A PCB segment;
• 18 × SFS06R025GF per channel, three devices per switch;
• DRV8300D gate driver and PY32F030K28U6TR controller per channel;
• high-side copper-shunt/INA190A3 current sensing with four-wire calibration;
• sensorless six-step control with PWM throttle and shared SPI/separate CS;
• shared 12 V gate supply, 5 V/8 A characterization-target BEC, and 3.3 V logic;
• JLCPCB/LCSC-first sourcing with Mouser alternatives and top-side assembly;
• top-side CNC copper reinforcement for every high-current path.

What works today

The calculation engine, BOM/pin-mux contracts, host protocol, commutation table, startup/control state machine, zero-cross detector, protection model, and both channel configuration contracts are covered by native tests. KiCad 7.0.11 parses the generated review CAD and exports plots.

python3 -m venv .venv
.venv/bin/pip install -e '.[test]'
make test
.venv/bin/python -m edf_esc.cad

Repository map

• hardware/ — deterministic KiCad review project and design-rule contracts
• firmware/ — tested portable control core and PY32 pin/configuration contract
• host/ — SPI framing reference
• bom/ — primary and alternate sourcing tables
• calculations/ — gate, MOSFET, shunt, copper, and BEC estimates
• docs/ — architecture, protocol, safety status, and source ledger

The progression to powered testing is intentionally gated: inspection, gate-only testing, current-limited low-voltage switching, 3S motor testing, restricted 6S, then thermal/electrical characterization. A numerical current ceiling is not a continuous-current rating.

License

MIT. See LICENSE. Component datasheets and vendor SDK files are not redistributed unless their licenses permit it.