Warning! I carelessly drew the discharge circuit incorrectly at
1:07
It shouldn't cross over to the Accumulator-side of the AIR-
This video introduces the need for a Tractive System precharge component and highlights some interesting failure modes that common approaches may have.
💻 Design files and code: https://github.com/michaelruppe/FSAE/tree/master/Precharge
0:00 Intro - why precharge? and a simple solution
2:59 Discussion on failure modes
5:45 A voltage-feedback strategy
8:52 Circuit topology
12:16 Hardware demonstration & fault interruption
#FSAE