Monthly Archives: October 2019

BQ76920 AFE board

Hello,

This post is about a new project that i’m using as a start-point for a bigger one.
The final target will be a BMS system for a 10S or 15S battery, like the one that’s used in electric bikes / push-bikes

After checking the datasheets and the available parts, I’ve decided to use the following system setup:

I’ve decided to start with a 5S chip for 2 reasons: I had a 4S pack available to play with (a pack used for a modified car vacuum cleaner) and because I wanted to limit the amount of available energy and potential damage if something went wrong.

Continue reading