Dear all,
New to this forum, looking forward to any suggestions the community can provide.

I have a Unipolar Stepper Motor:
-Type: 6 wire 4 phases + 2 common signals (1 common signal for phase 1 and 3 and another one for phase 2 and 4).
-Input voltage: 25V (Max transient voltage 60V) Command is made with constant current provided.
-Step: The stepper motor is driven in “half step” mode (i.e: phase1, phase 1 + phase 2, phase 2, phase 2 + phase 3, phase 3, phase 3+phase 4, phase 4, phase 4+phase 1, loop) (360/0.5= 720 step per 360° revolution)
Each half step make the rotor rotate of a 0.25° angle.
-Current draw: 500mA (total command current) => one phase activated : 500mA, two phases activated: 250mA per phase.

Q: Looking for an off the shelf driver for this type of stepper motor, please advise?

Thanks in advance.
747

 

I have a Unipolar Stepper Motor:
-Type: 6 wire 4 phases + 2 common signals (1 common signal for phase 1 and 3 and another one for phase 2 and 4).

Don't quite understand why your calling a 6 wire stepper a unipolar but that's up to you. What your looking for though is any of the stepper drivers that are based on a TB6600 chip. They are the easiest to work with and in my experience the most reliable. Just one link to what I mean, they are available many places for less money(Ebay), just look for the TB6600 name when looking. https://www.robotshop.com/en/tb6600-stepper-motor-driver.html

 

Here is the definitions.
https://techexplorations.com/blog/a...-between-unipolar-and-bipolar-stepper-motors/

 

But a 6 wire motor to my understanding can be used as both a bipolar or unipolar, depending on if you use or don't use the winding center tap.