Under construction

Darcy Battery Management System

Protected 12-cell battery interface and monitored power-distribution node for vehicle avionics

Design Responsible Engineer

AvionicsPower ElectronicsEmbedded SystemsHigh Current

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

12S Li-Ion

Battery Source

5

Controlled Load Paths

Current + Voltage

Power Telemetry

4

Copper Layers

A four-layer battery-management and power-distribution PCB connecting a 12-cell lithium-ion pack to the Darcy avionics system. The board combines protected battery input handling, regulated auxiliary power, five controlled load outputs, connector-level load switching, current and voltage telemetry, and current-loop sensor interfacing.

Design Focus

  • Protect the vehicle power bus against input faults and abnormal battery conditions
  • Keep repeated load-switch channels electrically consistent and easy to validate
  • Route high-current distribution paths with low resistance and controlled return geometry
  • Prevent switching-current paths from contaminating ADC and current-loop measurements
  • Expose sufficient test access for staged power-up and channel-by-channel validation

This case study is under construction; validation evidence and final layout annotations are still being prepared.

Layers
4
Stackup
Four copper-layer battery management PCB exported from Altium Gerbers
Tools
Altium, Bench Supply, Oscilloscope, Electronic Load
Key Parts
Battery management circuitry, Power input and regulation, Load switches, ADC measurement path, Connector load-switch channels, Current-loop sensor interface