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. ST’s portfolio features a wide selection of power MOSFETs, diodes and microcontrollers to build a discrete implementation of a unipolar stepper motor driver.

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Application Notes (5)
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1.0 | 28 Mar 2022 | 28 Mar 2022 | ||
2.4 | 13 Sep 2018 | 13 Sep 2018 | ||
1.2 | 13 Sep 2018 | 13 Sep 2018 | ||
1.0 | 03 Feb 2022 | 03 Feb 2022 | ||
2.2 | 13 Sep 2018 | 13 Sep 2018 |
Brochures (1)
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01.22 | 23 May 2022 | 23 May 2022 |