Title says it. I blew up the DRV on my VESC. Yesterday I set it up on my board, been sitting on the shelf for months. It ran well in BLDC on my 12S setup. It was great to have breaks that worked as well. Last ESC was a 90A boat ESC and had close to no breaks.
I had a 6364 190kv on it and changed it out to a 6374 149kv today. I also decided to try FOC out. I followed a tutorial on youtube by the man himself on how to detect the FOC values. All went well and I took it for a few KM ride. All was well. Put it back on the bench and did a few unloaded motor spin ups. I noticed if I started softly it would run in reverse for a little before running forward. It just didn’t seem right. I ran it a few more times to try to understand what was wrong and in my head I said “I should stop and check settings” No sooner had I thought this i pressed the trigger one last time and nothing.
Ordered a few DRV chips from mouser. It will be running again early next week.
I’ve been reading about FOC a lot more and I can’t seem to find a reason for it blowing up. Best answer I can find is “They blow the DRV up when they have the wrong settings …”