In unipolar stepper motors, stator windings share a common terminal; the free terminal of each winding is connected to a separate power switch and the current is allowed to flow in one direction through the motor windings. Diodes are used to clamp the voltage across the switches at turn-off.



Technical Documentation

Application Notes
Description Version Size
AN468 AN468: Constant/current chopper drive ups stepper/motor performance 1.3 102 KB
AN235 AN235: Stepper motor driving 2.2 1 MB
AN470 AN470: The L297 stepper motor controller 1.2 169 KB
AN469 AN469: Using the L6506 for current control of stepping motors 1.4 1 MB
AN4144 AN4144: Voltage mode control operation and parameter optimization 3.2 1 MB

Publications and Collaterals

Description Version Size
Motor Control Reference Guide 15.10 2 MB