Hi Guys. Im currently making my electronic technician degree in Germany and I was looking for a project that I can do as my technician-project. I was looking for a suitable BMS for my dual HUB motor setup but couldn’t find anything that fits. So I figured, maybe I can design one by myself.
What the BMS should have: -cell monitoring and balancing -charge indicator -capability to charge with external charger -10s LiPo (2 5S packs) -charging via USB-C Power Delivery Prorokoll (maybe use as sink and source -> powerbank feature) -overpower discharge resistor (if you go down hill and want to break but the batteries are fully charged you can Push a few amps trough a resistor to be able to at least break a bit longer) -no smart connection (everything got Bluetooth but I personally didn’t want to connect everything to my phone)
I already did a test PCB with the Ti BQ7630 as Analog Frontend and the Ti TUSB422 as USB PD controller. As uC I planning to use some sort of PIC, because we use them in technician school.
Maybe you good some good ideas or suggestions to make this Projekt a success.