It was never really the plan, it just ended up like that. I've repaired most of the controllers without fuss. A lot of failures were really 'soft' and I often only replaced the FET's that shorted. My current 12 FET LYEN has most of its original MOSFETs. No matching or anything special, just some snubbers and carefully placed copper. I think I had 3 failures with it. All of them were from stalling the motor at WOT into a wall while testing its durability. At the settings now, I stalled it for about a minute at WOT with some cooldown time. It has something like a thousand miles on it since the last failure, and I somewhat recently raised the phase current limit 10A. Easily 100-200 very hard miles since then.
I have 3 15 FET controllers that are missing parts of the board, so those are probably not going to work again. Failures at 48S are no joke. The 12 FET on the bike now has proven itself to be extremely reliable and never really gave me problems. The 24's however...
I have 3 15 FET controllers that are missing parts of the board, so those are probably not going to work again. Failures at 48S are no joke. The 12 FET on the bike now has proven itself to be extremely reliable and never really gave me problems. The 24's however...