Skip to main content

All Questions

Tagged with
1 vote
1 answer
34 views

Should I replace my stepper driver since my motor is acting up?

I've been using a Pancake Bipolar Stepper Motor for a project and STSPIN220 as the driver, but I've been randomly having a lot of current issues causing my motor to jitter. My project has been running ...
alxzhu's user avatar
  • 31
1 vote
0 answers
37 views

Is my stepper motor driver causing me current issues or is it me?

I've been using a Pancake Bipolar Stepper Motor for a project and STSPIN220 as the driver, but I've been randomly having a lot of current issues causing my motor to jitter. My project has been running ...
alxzhu's user avatar
  • 31
0 votes
0 answers
148 views

Excessive noise in stepper current

I am currently utilizing the TMC5160-BOB module to operate a stepper motor with a current rating of 2.4 amperes via the SPI interface. The supply voltage for this system is 29 volts. I am ...
mastermind's user avatar
2 votes
1 answer
198 views

Stepper Motor Calculation

I'm using this Stepper Motor from TI. This is the first time I am working with Stepper Motor. I need to calculate the load current or the current that the Motor takes. The Stepper is rated at 0.6A/...
user avatar
0 votes
1 answer
1k views

Control stepper motor with low current and high current

I am learning about stepper motors and i have the following question. Let's say i have a bipolar, 2 phases, NEMA34 with a 5A rated current. I am using a driver capable of delivering 5Amps or 2Amps at ...
Stefan Denis's user avatar
0 votes
0 answers
370 views

A4988 current limit formula: Where does the constant "8" comes from?

I am trying to calculate the VREF for my A4988 and while my A4988 is not from pololu I am using their formula over at https://www.pololu.com/product/1182 to calc the current limit. The formula used (...
Samuel's user avatar
  • 103
3 votes
2 answers
2k views

Why are stepper motor phase currents a sinusoildal waveform?

I don't know if this is a really dumb question or not, but I've seen all kinds of torque, peak-current and RMS discussions related to current drive output for stepper motors. I acknowledge that for a ...
Nicolas Cavalieri's user avatar
0 votes
1 answer
1k views

Designing stepper motor driver with A4989 chip to control NEMA 17 / NEMA 23 motor

I am trying to build a stepper motor driver, based on the A4989 chip, to control NEMA 17 and NEMA 23 stepper motors. Stepper motor specifications: NEMA 17: 0.4 Nm, 1.5 A/phase, 2.1 ohms. NEMA 23: ...
Alexandru Lebada's user avatar