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  1. S

    BLDC Motor Controller (High torque, low RPM)

    I take what I said back, I don't think my motor provides enough back EMF for the Mystery sensorless ESC to work.
  2. S

    BLDC Motor Controller (High torque, low RPM)

    Hey Miles, Yeah, I thought that - since the switching frequency will be so low, I won't need to worry too much about the material. I initially purchased a Mystery 30A ESC, but they are sensorless - which are useless for low rpm. Does anyone have any experience controlling brushless motors at a...
  3. S

    BLDC Motor Controller (High torque, low RPM)

    Thank you for your reply. I used two sheets of soft iron, each of thickness 3.3mm - so a total thickness of just under 7mm. From what I have read, stators are usually manufactured with laminated silicon steel to reduce eddy currents induced at high frequencies. This is very much a prototype I am...
  4. S

    BLDC Motor Controller (High torque, low RPM)

    Hello all, I am currently designing a BLDC motor. I need the outrunning rotor to rotate at around 100rpm (although the exact speed is not crucial). So far I have designed and manufactured the stator and rotor, as shown here: The outer radius of the stator is 30mm and the inner radius of the...
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