Recovery System
Fault-tolerant recovery avionics with triple-MCU voting and ten high-current deployment channels
Design Responsible Engineer
Schematic
Exported PDF/SVG sheets.
Layout
Copper layer inspector.
3D Model
STEP board preview.
Notes
Design wiki and bring-up notes.
Case Study
Engineering Summary
10
Deployment Channels
3
Independent MCU Domains
300 W
Simultaneous Load Step
2
Independent Power Trees
A six-layer mixed-signal recovery controller for fault-tolerant rocket parachute deployment. The board combines dual input power paths, four regulated power stages, three independent STM32 control domains, discrete median-voting logic, 4x redundant hardware safing, inertial and environmental sensing, and ten 24 V ignition channels.
Design Focus
- Preserve fault independence across redundant power, compute, and deployment paths
- Minimize high di/dt loop area through the ignition switches, connectors, and return paths
- Isolate low-voltage sensing and voting logic from high-current deployment circuitry
- Maintain deterministic hardware inhibition through RBF, ESTOP, abort, and software-controlled enables
- Keep power-distribution impedance low enough to support simultaneous deployment without resetting control electronics
This case study is under construction while final lab images and measurement evidence are prepared for public release.