High Power Battery Managment/Leveling/Monitoring System with Power distribution
High Power (220+ Amps) Battery Management System with integrated power distribution and monitoring, designed for UAARG (University of Alberta Arial Robotics Group).
High PowerLTspiceAltiumC++
Quick Write-Up
- • Design takes in up to 4 6s LiPo batteries and outputs a 25.2V bus for powering a high-power drone, with integrated battery management features including cell balancing, overcurrent protection, and real-time monitoring.
- • Designed around a BQ76952PFBR BMU IC to monitor cells and communicate with the MCU.
- • Design uses a busbar for taking power from inputs to main outputs, as it provides a low resistance path for high currents and helps with heat dissipation.
- • Communication and configuration with a STM32G474 MCU, and a ILI9341 display for QOL
- • Design features a MOSFETS + Controller to act as an ideal diode to allow batteries to provide power to the bus while preventing backflow
- • Design features PFETs to precharge ESC capacitors to avoid sparks upon connection.