This unipolar stepper motor driver circuit is used to drive a 12V unipolar stepper motor with a current rating of 1.25A. It uses PCA9537 IC, which is a 10-pin CMOS device that provides 4 bits of ...

Although many schematic diagrams show pronounced teeth on the stator and/or rotor, this doesn’t have to be the case, as evidenced by e.g. this teardown of a 28BYJ-48 stepper motor by Cookie ...

Then we will illustrate a simplified stepper motor drive, so you will understand the basic principles involved in stepper motor control. Next, you will do a deep dive into stepper motor specs, ...

4. In an actual bipolar stepper motor driver, the calculations are more complex than in the simplified model of Figure 1. Here, “a” is the symbol and model, “b” is the current waveform for ...