1. #1
    Unipolar/Bipolar Connections (2-Phase Motors)

    Unipolar and Bipolar Half Coil, because we're using less turns, doesn't give us great low speed torque, but because of the low inductance, holds the torque out to high speeds.

    Bipolar Series uses the full coil so it gives very good low speed torque. But because of the high inductance, the torque drops off rapidly.

    Bipolar Parallel also uses the full coil so it gives good low speed performance. And its low inductance allows the torque to be held out to high speeds.

    But remember, we must increase current by 40% to get those advantages.

    Last edited by Lee Roberts; 19-10-2008 at 12:22 AM.

  2. The Following User Says Thank You to Lee Roberts For This Useful Post:

Similar Threads

  1. THE Bipolar Stepper Driver. Have you seen it?
    By NorDevX in forum Manufacturer News
    Replies: 19
    Last Post: 23-09-2013, 07:45 PM
  2. Unipolar stepper motor with ULN2003?
    By musicworld1 in forum General Electronics
    Replies: 10
    Last Post: 25-08-2010, 09:39 AM
  3. Running unipolar stepper motor with TIP120
    By helow in forum Stepper & Servo Motors
    Replies: 2
    Last Post: 26-06-2010, 10:19 AM
  4. Bipolar motor voltage
    By wildbill in forum General Electronics
    Replies: 10
    Last Post: 24-02-2010, 11:23 AM


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts