Major update for BMS C1 v0.3
This commit contains major updates of the PCB after the first prototype
build-up and testing. Changes include:
- Single PCB instead of stacked PCBs to simplify design and reduce cost.
- STM32 MCU was removed due to supply shortage. Only ESP32-C3 supported.
- Custom connectors replaced with off-the-shelf Würth Power Elements.
- 5V power rail removed to simplify design (CAN runs on 3V3 transceiver).
- Larger Shunt with improved footprint.
- Optimized layout to reduce distance between IC and shunt.
by
Martin Jäger
2 years 8 months
Updates based on review comments (v0.2)
This is the design revision that was ordered for the first prototype build.
The pinout of the cell connector and the board-to-board connector changed
compared to v0.1, hence it got a minor revision update.
The control board is now a 4-layer board to improve the grounding of the
PCB. Various other suggested improvements from the design review are also
included in this update.
Fixes #11, #12, #13, #17, #18, #19
by
Martin Jäger
3 years 2 months
Update spec based on initial reviews and feedback
- More common SMD shunt resistor (issue #2)
- High current connection using custom busbar instead of expensive press-fit
terminals (issue #3)
- RJ45 connectors for CAN not on board anymore (issue #4)
by
Martin Jäger
3 years 5 months