Update: Finally got this one, it’s really amazing! https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F302033173933 18 FETS with 100v caps. It’s called 72V 1000W, but it easily does 72v 40A. Hits 30 mph according to the Strava, probably capped at 28 mph. Runs in sensorless mode or sensored mode! Runs cool, the FETs have no problem.
So I posted this in general discussion, but i think it should go here.
Basically, my motor controller broke when I was riding on some off-road bumps.
My motor is a DD hall sensored hub motor. The motor spins freely when the controller is off but not when it is on. That is said to be a common symptom of a shorted FET, but I can’t seem to find any shorted FET. I checked 12 V and 5 V supply, along with hall sensors in the wheel and throttle, all of which are good. I noticed the brake wire and regen brake wire are low on voltage (1.3 V and .6 V). I tried to boost their voltage to 5 V to possibly disable electronic braking, but it didn’t fix the issue. So what do you guys think? Dead controller? Any other tests I can do to help you guys help me?
A quick update, I bought a new controller on eBay. Really excited for this one. https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F302033173933 (WOOHOO, out for delivery TODAY!!)
So I posted this in general discussion, but i think it should go here.
Basically, my motor controller broke when I was riding on some off-road bumps.
My motor is a DD hall sensored hub motor. The motor spins freely when the controller is off but not when it is on. That is said to be a common symptom of a shorted FET, but I can’t seem to find any shorted FET. I checked 12 V and 5 V supply, along with hall sensors in the wheel and throttle, all of which are good. I noticed the brake wire and regen brake wire are low on voltage (1.3 V and .6 V). I tried to boost their voltage to 5 V to possibly disable electronic braking, but it didn’t fix the issue. So what do you guys think? Dead controller? Any other tests I can do to help you guys help me?
A quick update, I bought a new controller on eBay. Really excited for this one. https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F302033173933 (WOOHOO, out for delivery TODAY!!)