BrowseBoardRepo

bms-8s50-ic

Public

@libresolar

Download board files

Files for version 1. Pick what you came for.

KiCad projectAll 10 files, ready to open in KiCad146 KB3D modelThe board with its parts, for an enclosure (GLB)12 MB
Browse all files

Share bms-8s50-ic

Check access before sharing the link.

Who can open this board

Anyone can open this board. No sign-in is required.

https://boardrepo.com/libresolar/bms-8s50-ic

This link opens the latest version. Copying it does not grant additional access.

Loading…

README

BMS 8S50 IC

First boards tested, some issues might still be open.

Schematic: PDF file

Bill of Materials: CSV file or interactive HTML BOM

Firmware repository: LibreSolar/bms-firmware

Features:

  • 3 to 8 Li-ion cells (e.g. LiFePO4)
  • Integrated high-side MOSFET switch and current sensor
  • Balancing current approx. 150 mA
  • STM32L452 ARM Cortex-M4 microcontroller
  • Built-in CAN communication interface and UEXT extension connector

Firmware

The firmware is developed in a separate repository LibreSolar/bms-firmware.

Housing

The PCB is designed such that a heat sink can be easily attached at the bottom. The following images show a draft idea for the housing. The files of the heat sink and the cover can be found in the housing folder as native FreeCAD files.

Important Notice

The PCBs have not been tested regarding EMC and other regulations. If you reproduce the boards, you use them at your own risk and responsibility.

Comments

No comments yet. Be the first to ask about this board.

Ask about this board

Sign in to BoardRepo

New here? Signing in creates your account; there is no separate sign-up.