georgeycc
1 W
i think this experiment might help some people who are doing the same stuff. i did this conversion so that i can use a industrial motor controller that has armature current limiting. this also enables usage of Kelly controller to work with R/C motors.
i converted two motors, one is HTX style outrunner with 200rpm/V kv value and the other is hacker style slotless motor. interesting enough, the hall sensors could be mounter outside of the flux ring. the flux leakage is really obvious with r/c motors.
i am building a dyno to test if the controller really limit the armature current precisely to give near flat torque shape, hopefully it will work. the other good thing is that this HTX generate huge torque at ZERO speed
btw, the timing is not exactly accurate as you can see from the waveform, but that's adjustable tho.
timing not perfect
====================
i converted two motors, one is HTX style outrunner with 200rpm/V kv value and the other is hacker style slotless motor. interesting enough, the hall sensors could be mounter outside of the flux ring. the flux leakage is really obvious with r/c motors.
i am building a dyno to test if the controller really limit the armature current precisely to give near flat torque shape, hopefully it will work. the other good thing is that this HTX generate huge torque at ZERO speed
btw, the timing is not exactly accurate as you can see from the waveform, but that's adjustable tho.
timing not perfect
====================