casainho
10 GW
- Joined
- Feb 14, 2011
- Messages
- 6,045
Good that we are going to the next level: Regen -- I need to learn it, let's learn toghether!!stancecoke said:edit: the controller is OK, it's the J-LCD display, that causes the short circuit
Today I gave my BMSBattery Q11 direct drive motor to my mechanic, so he can try to put the spokes. When I have it ready, I will start testing it and the regen.
I hope you can repair the LCD. The board seems much more simple than the motor controller board -- I would say a capacitor or voltage regulator that are in short, due to very high voltage that were generated on regen.
So, I think your LCD did fried with high voltage. The LCD3/LCD5 can handle from 24V up to 48V, maybe J-LCD also handles that.
I would say that your lab power supply didn't absorve any back current and so the voltage raised a lot, and your LCD did fried. What can we do?
1. maybe doing the tests using a battery
2. on the PWM cycle code (this will be the fastest possible) look at battery voltage and quick disable the motor phases if we get on an overvoltage
What do you think?