4 ms·
I used to think this but you can actually drive steppers with FOC (if they have appropriate feedback) and modulate the current based on required torque. It’s op
by SequoiaHope 2y ago
I used to think this but you can actually drive steppers with FOC (if they have appropriate feedback) and modulate the current based on required torque. It’s open-loop steppers that don’t do this.
- mitthrowaway2 2y agoYou can do this but it's very difficult; the high pole count means it requires extremely precise and high-speed feedback to get good torque control on a stepper motor.
- SequoiaHope 2y agoYeah ain’t that the truth. This is a problem I’ve been fighting at work lately with a trinamic based system. Trinamic should be good but I see it’s touchy to properly phase align a stepper.