Electronic – Can Brushless DC Motor (BLDC) be used as Stepper Motor

brushless-dc-motordriverstepper motor

I have a BLDC motor and I am keen to know if there is a controller out there that can allow BLDC to be used as stepper motors with (holding torque and accuracy in step size) I know BLDC motors are built for smooth drive experience while stepper motors are built to perform accurate steps (however is there a way to make BLDC motor perform with with the accuracy of stepper motor?

Best Answer

YES

But you would have to add pulleys and belts made for steppers to reduce the ratio like 64:1 because a stepper may have 64 poles /rev as full steps while a BLDC might be 2 or 3. Then you may have to adjust holding-current to limit heat rise.

The gearing ratio depends on diameter ratio but can be cascaded and made to standard loops of belt or any linear length with end stop switches added.

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